Flying Secrets Passenger Should Know

47 Secrets You Never Knew About Flying

Experts reveal all the wonder of air travel. Planes are becoming ever more sophisticated and intelligent, and the in-flight experience has come on leaps and bounds since the early days of airliners. Here are what expect; cabin crew, pilots, airline execs explain some of flying secrets passengers should know.

Flying Secrets Passenger Should Know

1. Flights are Overbooked to Keep Fares Low

According to travel expert Simon Calder, flights are overbooked in order to keep fares down. The thinking is that customers regularly don’t show up for flights so overbooking is an easy way for the airline to make extra profit. It’s also worse for the environment when planes fly at less than capacity. Theoretically, if the flight is blown (more customers than seats), the airline can offer incentives to passengers who don’t mind volunteering to give up their spot. But some recent high profile cases have seen passengers dragged off overbooked flights.

2. Budget Airlines aren’t less safe than full service carriers

The cost of an airline should make absolutely no difference to its safety levels. Although passengers choosing the budget option might take a hit when it comes to comfort, airlines simply cannot and will not cut corners when it comes to the safety of their passengers. Planes operated by budget carriers must adhere to the same regulations and standards as their more pricey competitors, according to the CAA.

Flight attendants have a variety of roles -Flying Secrets Passenger Should Know

3. Flight attendants have a variety of roles

Before you board the plane, flight attendants will have carried out a safety check and ensured the plane is clean and tidy. They then welcome passengers on board and prepare and serve food and drinks. A lot of time is spent ensuring passengers are comfortable and at ease and in rare cases, a flight attendant might have to carry out first aid or restrain a passenger.

4. Cabin air may be bad for your Health

The quality of cabin air has been a point of hot dispute for some time. Though most airlines insist there are no risks associated with breathing cabin air, some studies, including safety reports from the CAA, suggest otherwise. The air you breathe on board contains “bleed air”, which is taken from a turbine engine, compressed and conditioned, and pumped into the cabin. Some argue that it can become contaminated with chemicals which contribute to a range of health issues. The debate continues.

5. Cabin crew are first-aid trained

“We just get on with our job,” says Dan Air. “Believe it or not we don’t actually need a doctor. Our aviation first aid training is so good that on occasions, doctors can be more of a hindrance as our equipment is often very different to what you’d find in hospitals. We on the other hand are fully trained in it. That’s not to say we don’t all breathe a huge sigh of relief if there is a medical emergency and a doctor, nurse or paramedic steps forward.”

6. That blanket and pillow are safety features too

Apart from the obvious ones, such as seat-belts and oxygen masks, a plane is always fitted with nifty safety features. The cushions and blankets are flame-retardant and self-extinguishing, and there are lights close to the floor in case there’s a fire and you need to see while you crawl to safety. As for your plane, twin-engine jets are designed to operate safely even if one engine fail

7. Rationality won’t help your fear of flying

According to psychotherapist and coach Rob Stewart, nervous flyers shouldn’t try to rationalize their fears. “You’ll end up playing cognitive tennis and going back and forth between anxious thoughts and rational thoughts, but all the while becoming more introspective and more anxious,” he says. Rob recommends a strategy called attention focus. “Attention focus acknowledges uncomfortable thoughts and feelings, but then redirects our attention to something more helpful: a conversation with someone, a book, magazine or film.”

8. Passengers help the crew during take-off and landing

Take-off and landing are “the most critical phases of a flight”, according to flight attendant and founder Leandi Schoonraad. “Passengers can often see more of what’s happening outside the aircraft than the crew can, and they can (and have) alerted us to potential external dangers such as ice on the wing or smoke from the engine. After an emergency landing, it’s also essential that people outside the plane can see and indicate to people inside and vice versa.”

9. Crew sometimes sleep in the ceiling on long-haul legs

“We have our secret little area called the crew rest,” reveals Dan Air. “Depending on the aircraft this can be found in the tail, in the belly or sometimes in the ceiling of aircraft. They’re pretty confined so not the best if you’re claustrophobic. But they do offer a welcome break from passengers. Now what goes on in the crew rest area is a whole other story, but let’s just say if those bunks could talk, it would be a bestseller!”

10. Passenger cry more on planes

“If you find you’re an anxious flyer, your threat response part of your brain, the amygdala, will be in a state of activation,” says psychotherapist Rob Stewart. “This controls not only your fight and flight response (no pun intended!) but the same region of the brain for other emotions. So, you become more prone to other emotional states when you’re feeling uncomfortable. Having said that, maybe The Notebook is just that much more real at 30,000 feet (9km)!” Read more about the effects that flying has on your body here.

11. Air Pressure makes your legs swell

If you’ve spent more than a couple of hours on a flight, you may well have noticed that your feet, ankles and legs have expanded considerably. It’s mainly just because you’ve been sitting still for too long, allowing for a build-up of fluid. The change in air pressure and some likely dehydration adds to the reaction. Make sure you walk around (when the seat-belt sign is off, of course) and drink plenty of water.

12. Air Pressure causes your ears to pop

Quick changes in air pressure (which is when a plane takes off and lands) affects the pressure in your middle ear, and can be pretty painful. The Eustachian tube, which connects your middle ear to the pharynx, usually equalizes pressure on its own but finds it hard to respond quickly enough to these changes. Help activate it during take-off and landing by yawning, chewing gum or swallowing water regularly. Another tried and tested tactic is to pinch your nose and blow gently through your mouth.

13. Seats have to be upright for safety

“From a safety perspective, [upright seats for take-off and landing] are for a ‘just in case’ emergency scenario,” says Leandi. “If the seat’s reclined, it’s harder for you to get up and out of your seat, and that extra second per person can be a matter of life or death. Also bear in mind that a reclined seat, especially in economy class, impacts on the space the person behind you has. If you make it awkward for them to get out by reclining your seat, you’re potentially risking their life in an emergency landing situation.”

14. Darkness in the cabin is also a safety feature

“The lights should always go out before take-off or landing if it’s dark outside. The cabin needs to reflect the exterior environment so your eyes don’t need to adjust in an emergency situation,” says Mandy Smith, former Virgin Atlantic air hostess and author of Cabin Fever, a behind-the-scenes account of being an air hostess.

15. The Seat-belt sign is a communication tool between pilot and passenger

“The seatbelt sign is your captain’s way of communicating with you,” says Leandi of “Their primary concern is passenger safety so if the captain sees turbulence coming, the seat-belt sign will be switched on as a warning to you and the crew to prepare themselves. Of course, we do our best to avoid the bumpy air so if the sign is on but you don’t have any turbulence, then your captain did a great job of deviating around the weather. Or he or she forgot to switch it off.”

16. Seat swapping is OK, as long as you stay in your cabin

It’s acceptable to take a spare seat in your respective cabin, says Mandy, but warns: “If you paid for economy then don’t move yourself into an upper class or premium cabin. If there’s a family traveling with children on their knee, I’d expect people to allow them to take a seat before they laid down and bagged themselves four seats each.” Oh, and it’s polite to ask before you move.

17. Cleaning time is minimal on many flights

Many short-haul and domestic flights only have around 30 minutes of ground time, according to Leandi. “That’s crazy when you think that means passenger disembarkation, cleaning, re-catering, security checks and passenger boarding for the next departure. Larger aircraft, especially on long-haul flights, will have closer to 90 minutes, which is still impressive given what needs to be done in that time. There’s very little margin for error and delays can have a big impact,” she says.

Meals are prepared on the ground a few days in advance

18. Meals are prepared on the ground a few days in advance

“With the exception of a few 5-star international airlines, we don’t actually cook on board,” says Leandi. “The meals are prepared a couple of days in advance and packaged. That’s why if you have a special dietary requirement, we ask that you tell us about it 48 hours in advance. Then when we get on board, we just pop the meals in the oven and heat them for 30 minutes before serving them to you on the meal trays.”

19. Aircraft Pressure makes the food taste rubbish

“[Plane] food is pretty tasteless anyway, even the good stuff up in first [class],” admits Dan Air. “Scientifically speaking however, it’s all down to aircraft pressure. Combine this with the dry cabin air and your taste buds basically go numb.”

20. Flight attendants have the same meals, but have their own hacks

“We eat the same food most of the time,” says Leandi. “Crew all have their own tricks – some carry miniatures of Tabasco sauce and other condiments. I personally carry a tin of tuna or an avocado with me to make an otherwise plain salad more substantial and appetizing. Remember that bread and fizzy drinks can make you feel bloated, especially on board, so do as we do and avoid!” Discover our favorite hacks to create the best in-flight meal here.

21. Dehydration on long-haul flights means you’ll get drunk quicker

“During a flight your body gets incredibly dehydrated,” says Dan Air. “On average during a 10-hour flight it will lose at least two liters of water. Add to that the dehydrating effect of alcohol and if you keep drinking during a flight, you can expect one mother of a hangover the next day!”

22. The oxygen masks only provide up to 15 minutes of air

If cabin pressure falls to a certain point, masks will drop immediately and there is an oxygen reserve that will last around 12–15 minutes. That may not sound like much but don’t worry. Should this occur, the pilot will ensure the plane is brought to a safe altitude as quickly as possible.

Flying Secrets Passengers Should Know

23. The pilot communicates with cabin crew through the ‘double ding’

“The double ding as we call it,” says Mandy, “means that the pilot has had the checks in from the cabin manager and the go ahead for take-off.” Pete Evans, COO of Surf Air and former head of operations at Virgin Atlantic, says there are many different sounds and various airlines use them differently. “They’re like a set of codes for passing instructions between crew. The most noticeable ones happen during the climb after take-off, telling the crew that it’s safe for them to leave their seats.”

24. A plane can’t take off if you’re in the bathroom

Legally, a plane can’t take off if someone is in the bathroom because take-off and landing are two of the most at-risk moments on the plane. If the plane was forced to make an emergency landing or underwent severe turbulence, there is nothing in the bathroom that would protect a passenger, and worse, someone might get trapped in there.

25. Bathrooms are supposed to be cleaned every 30 mins

There are no legal requirements but on average bathrooms are checked by a flight attendant every 30 minutes to make sure there’s enough toilet paper, and as a safety function that people aren’t doing anything strange in there. The blue liquid you see in the toilet also acts as a deodorizer. But it’s common that plane toilets are not cleaned to a high standard in the first place. Fingers crossed that the self-cleaning toilet Boeing has teased us with arrives sooner rather than later.

26. If your phone’s left on, it probably won’t interfere with the equipment

Dan Air, flight attendant and Confessions of a Trolley Dolly blogger, says the official line is that devices not on airplane mode can interfere with aircraft equipment. He admits, “But if I’m honest, nothing would really happen. I’ll let you in on a little secret: I often forget to switch my phone off, and except drain my battery, little else happens. However, if 400 people all have their phones on, problems could occur. Plus, if you can’t survive without it for a few hours then you really need to get out more!”

Planes fly high for speed - Flying Secrets Passengers Should Know

27. Planes fly high for speed

Commercial planes generally travel at a lofty 35,000 feet (10.6km). That’s because, the more a plane ascends, the thinner the air becomes, so an aircraft can travel faster and more cost efficiently at a greater altitude. But it isn’t a case of the higher, the better. If an aircraft travels too high (above about 42,000 feet/12.8km), there is insufficient oxygen and this can cause problems with the engine.

28. 24-hour Flights aren’t far off

Currently, the world’s longest scheduled non-stop commercial flight is the Singapore Airlines route between Singapore and Newark (flights SQ21 and SQ22). But Pete Evans of Surf Air says 24-hour flights won’t be far off in the future. “It won’t be long before we could see 24-hour flights as aircraft engines become even more fuel efficient,” he explains. Qantas recently completed a test of the longest non-stop passenger flight – 19 hours and 16 minutes from New York to Sydney.

29. Planes don’t dump waste in the skies

James Kemper’s patented modern vacuum toilet uses a tiny amount of blue fluid (carrying water would make the plane too heavy) and the contents are sucked down a sewer line and into a 200-gallon holding tank. It can’t be accidentally released during a flight because the latch can only be opened from the outside, and is then later vacuumed out by crews on the ground.

30. The arrows inside planes have special meanings

The inside of the plane is marked with red and black arrows, and these line up with the plane’s wings. If a member of the air crew needs to check the wings, these are the best seats that offer a view of what’s happening outside. It’s really helpful in the winter as it allows crew to see if there is too much ice collecting on the wings.

31. Planes can really fly and land themselves

Pete says, “An entire flight could be operated by auto-pilot, but pilots usually perform manual take-offs and landings. An aircraft can be landed automatically all the way to a complete stop on the runway. In the UK, the first autonomous airliner is being tested so in the future we could see pilot-less airliners.” But Jonny notes: “Autopilot won’t replace a pilot in commercial aviation because it can’t problem solve in an emergency. For that you need a well-trained pilot.”

32. Plane windows are layered

Aircraft windows are made in layers. Surf Air’s COO explains: “[There’s] a glass window on the outside, an air gap, another glass window in the middle (with a little hole) and another layer usually made of plastic, which stops passengers scratching windows. The hole is an important safety feature which allows the cabin pressure to be consistent all the way to the outer window. If the outside window failed, the middle window would still be sufficient enough to maintain the cabin pressure, even with the tiny hole.”

33. Pilots often fall asleep on the job

There’s no need to panic about this one. It’s known as controlled or in-seat rest, and it means that one pilot will snooze (usually for no longer than about 45 minutes) while their co-pilot takes full responsibility of the controls. The resting period will be agreed in advance (during times of low activity), and the co-pilot will be properly briefed and the rest of the crew should be informed.

Calculating flight time is complicated - Flying Secrets Passenger Should Know

34. Calculating flight time is complicated

Working out flight time (which is measured from gate to gate) requires complex software to calculate all the variables including distance, altitude, weather forecast (to work out head or tail winds) and air traffic congestion along the way. Despite increasingly sophisticated planes, flight times have increased in recent decades. This so-called schedule padding gives airlines a little extra time in case of delays (perhaps a valid excuse considering ever-increasingly busy airports).

35. There’s a reason you almost always enter/exit on the left

There are a couple of potential reasons why people usually enter and exit on the left side of the plane. Firstly the luggage hold and the fuel tank are (mostly) on the right side, so keeping passenger activity to the left reduces the risk of injury. But some believe this pattern is actually linked to nautical history. A ship’s port would always be on the left and so it’s thought that aircraft designers followed this same format.

36. Airports collect extortionate landing Fees

Annually, a UK airport such as collects $19-26 billion (approx £15-20bn) in landing fees. On top of safety checks and maintenance, each flight can cost up to $26,000 (£20k) in fuel, take-off and landing fees. If there are complications, such as high winds or a last-minute emergency, it might cost an airline $5,000 (£4k) per flight.

37. London’s main airport averages one emergency landing a week

Emergency landings happen more often than you think. alone averages around one per week, according to the Civil Aviation Authority (CAA). Emergency landings can be the result of anything from poor weather conditions to passenger illness. If one should occur, trust that you’re in safe hands and you’ll be told what you need to know.

38. The fastest plane travels more than 650 miles per hour (1,046kmph)

The average cruising speed for a passenger jet is about 575 miles per hour (925kmph), but the fastest commercial plane in the world is the Boeing 747-8i, and the largest of the 747 family. It has a cruising speed of 659 miles per hour (1,060kmph) and is currently used by three operators: Lufthansa, Korean Air and Air China.

39. Flying from Perth to London once cost almost $24,000 (£20k)

People refer to the 1950s as the golden age of flying, but it also meant flights were only accessible to the privileged few. The cost of flying with Qantas on the Perth to London route back in 1955 would be $23,564 (£18,144) in today’s money. Now, you can make the same journey for around $900 (£700). In 1958, BOAC (the British Overseas Airways Corporation, a precursor to BA) launched the first one-way fare from London to New York which was $225 (£173) at the time, but $4,990 (£3,842) in today’s money.

Your lost luggage gets auctioned off

40. Your lost luggage gets auctioned off

It’s the ultimate travel disaster – you arrive at your destination airport to find your bag was lost in transit and is nowhere to be seen. Most lost luggage is reunited with its owner within a few days and there will usually be some monetary compensation if the bag has well and truly vanished. But what happens if that luggage is never claimed? There’s such a thing as a lost luggage auction which hawks the abandoned goods to eager punters ready for a bargain.

41. Planes come with body bags in case of a death on board

If there’s a medical emergency, the plane is immediately diverted. However, if a passenger passes away on a flight while mid-air, the body is usually covered with a blanket and moved to an empty seat if available. If it’s a full flight, the deceased is usually placed in a body bag and laid out in the rear galley. In some instances, cabin crew have sat next to the body, but there is no perfect system as aircraft don’t have a designated space.

42. Turbulence has multiple causes

“Turbulence can come from jet streams (strong wind), wake turbulence (another plane passing by), cloud cover and stormy skies,” explains Leandi. Mandy, Cabin Fever author, describes it as an “unpredictable creature” with air pockets often being completely undetectable. “I’ve had many incidents where the aircraft drops suddenly,” she says. “I’ve been injured in turbulence several times during my career and even now I never feel comfortable as a passenger without my seat-belt on.”

43. Planes are unlikely to crash due to turbulence

It’s highly unlikely that planes will crash due to turbulence but “never say never”, says Pete of Surf Air. “The reality is an aircraft is designed and tested to go way beyond what we normally expect from turbulence, even severe turbulence.” He points out that turbulence often feels far worse than it is. “A modest movement of, say, 10 feet (3m) can feel like a huge jolt. It would have to be really exceptional to cause the aircraft structure to fail,” he says.

44. Lightning can strike planes but it often goes unnoticed

“Typically, a bolt will hit an extremity, such as a wing tip or the nose, and the current will travel through the plane’s metal shell before leaving from another point, the tail, for example,” explains Jonny. “Once in a while there’s superficial exterior damage or minor injury to the plane’s electrical systems, but a strike typically leaves little or no evidence. In fact, you might not even notice it.”

45. Security and safety mean you’re not allowed to walk under the wing

One of the main reasons is because the engine of the plane might still be hot from the flight and poses a danger. The other is a security issue – ground staff are subject to major security checks before they are allowed to work anywhere near an aircraft while passengers don’t have the same clearance.

46. Engine power reduces almost immediately after take-off

“Airlines and airports like to be ‘friendly neighbors’,” says Pete of Surf Air. “Power is reduced as soon as it can be to reduce noise. An aircraft needs a lot of power from the engines to get off the ground but once airborne the amount of power needed can be reduced – the climb to cruising altitude will normally be much less steep than take-off.”

47. Carbon from planes stays in the atmosphere for 100 years

According to the Stern report produced for the UK government, aviation contributes to about 2% of carbon dioxide emissions, and is only likely to grow. Plus, the carbon emitted by a plane remains in the atmosphere for around 100 years. Where possible, it’s worth considering train travel versus flights for example, the Eurostar from produces 10 times less CO2 emissions than a flight.