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How to Survive a Long-Haul Flight: Do’s and Don’ts for Staying Comfortable on Long Flights

  • FTLO Team
  • 4 days ago
  • 4 min read

Long-haul flights can feel intimidating if you have never done one before. Eleven hours. Twelve hours. Sometimes longer with layovers. That is a lot of time in one seat.


If you have ever wondered how to survive a long-haul flight without arriving exhausted and jet-lagged, the answer is usually not one big trick. Most long-haul travel fatigue comes down to three things: dehydration, disrupted circadian rhythms, and sitting still for long periods of time. A series of small choices throughout your travel day can help your body stay hydrated, rested, and aligned with your destination time zone.


We asked our team, people who regularly fly across the globe for work and pleasure, what actually makes a difference on long travel days.


Here's what they have learned.


Plane Flying

Before You Leave: Set Yourself Up for your Long-Haul Flight


The flight doesn’t start when you buckle your seatbelt. Preparing for a long-haul flight begins before you leave home. Airplane cabins are extremely dry. Humidity can drop as low as 10 to 20 percent, compared to the 30 to 60 percent humidity levels most people are comfortable in on the ground. Even mild dehydration affects energy and focus, which is part of why people step off long flights feeling foggy.



DO:

  • Start hydrating the day before you travel. Go into the flight topped off, not playing catch-up.

  • If you can, shift your sleep slightly two or three days before departure. Even going to bed an hour earlier can help your body begin adjusting to your destination time zone.

DON’T:

  • Assume you can fix everything once you board. Long-haul flight comfort usually comes down to the small prep decisions no one sees.

  • Let sponsored Instagram ads convince you that you need every new travel gadget to survive a long flight. Focus on the few things that actually make you comfortable. A couple simple comforts go much further than an overpacked carry-on. If you’re curious what we (as frequent travelers) actually use, we put together a guide to a few, high-quality travel products our team swears by.



At the Airport: Think Ahead

This is usually when vacation mode kicks in.The celebratory drink. The heavy pre-flight meal. The extra coffee because it’s been a long morning. We get it.


But altitude changes how your body processes food and alcohol. Airplanes are pressurized to the equivalent of roughly 6,000 to 8,000 feet above sea level, which slightly slows digestion and can make heavy meals and alcohol feel more intense.

Person pouring water into a glass from a water bottle before a flight

DO:

  • Fill your water bottle and eat something balanced before boarding, ideally a meal with protein, healthy fats, and complex carbohydrates. Think eggs and toast, a sandwich with protein, or yogurt with fruit.

  • Start thinking in destination time. If it is nighttime where you are headed, begin winding down.

DON’T:

  • Stack alcohol, salty snacks, and caffeine without balancing them with water. That combination, plus dry cabin air, is often why people land feeling bloated and drained. You do not need to be strict. Just be intentional.




In the Air: Focus on Rest, Not Perfection

Once you're in the air, this is the portion of the journey people tend to overthink the most. Sleep matters, and even a few solid hours can make a difference when you land.


Jet lag is not just about how tired you are. It is about your internal clock being out of sync with local time. That internal clock, known as your circadian rhythm, is strongly influenced by light exposure, sleep timing, and movement.



DO:

  • Think in destination time once you board. If it’s nighttime there, try to sleep.

  • Create the best environment you reasonably can. Dim your screen, use an eye mask, and wear layers so you are not waking up because you are cold.

  • Drink water consistently. A simple benchmark on longer flights is around 8 ounces per hour.

  • Get up every few hours and move your legs.

DON’T:

  • Stress about perfect sleep. Airplane rest is rarely deep or uninterrupted, and that is okay. The goal is to reduce fatigue and begin shifting your rhythm, not to engineer a flawless eight hours.

  • Stay frozen in your seat the entire time. Sitting for extended periods slows circulation and contributes to stiffness and swelling.



When You Land: Reset Intentionally

This is where jet lag is often decided. Your body clock is still operating on home time, so the fastest way to adjust after a long flight is to give it clear signals.


DO:

  • Get outside if it is daytime. Light is one of the strongest signals your brain uses to understand what time it is and begin resetting your internal clock.

  • If you need a nap, keep it short, around 20 to 45 minutes.

DON’T:

  • Take a long three-hour “reset” nap. Longer daytime sleep can make it harder to fall asleep at a normal local bedtime and extend the adjustment. And don’t panic if you feel slightly off that first afternoon. Most travelers feel significantly better within a day or two.



Our Final Thoughts

A long haul flight is just a few contained hours in a much bigger trip. The first dinner. The first group meetup. That moment when you step outside somewhere completely new and think, we actually made it.


Those memories last much longer than the flight itself. The goal is not to master the flight. It is simply to arrive rested enough to enjoy what comes next. After all, you are not flying for the seat. You’re flying for the destination.


FTLO Travelers in the Morocco trip riding camels in the desert

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