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Trail & Terminal

04 — Carry-On / Guide

Airplane essentials

Not a packing list for the trip -- a list for the seat. Everything here lives within reach for the duration of the flight.

By Brijon M.Last updated How we pick
Headphones, a water bottle and a book on an airline tray table

The short answer

Keep these within reach: headphones, an empty bottle to fill after security, a warm layer, lip balm, snacks, your charger and a power bank, and medication. Everything else can go in the bin -- these are the things you will reach for.

01 — Within reach

The seat kit

The organizing idea is simple: once the bin closes, you are not opening it. Anything you will want between boarding and landing has to be with you, which means in the personal item or in a pocket.

Comfort

  • A warm layer. Cabins run cold, blankets are not guaranteed, and this is the single most commonly regretted omission
  • Eye mask and earplugs. Cheaper and more effective than a pillow for most people. See travel pillows
  • Lip balm and hand cream. Cabin humidity is very low and skin notices within an hour
  • Thick socks, so you can take your shoes off without putting your feet on the floor
  • Compression socks on long flights. See compression socks for flying

Hydration and food

  • An empty bottle, filled after security. Cabin air is dry and cabin service is intermittent
  • Snacks that do not melt or crumble. Nuts, jerky, dried fruit, hard bars
  • Electrolyte tablets, for very long flights
  • Go easy on alcohol and coffee. Both compound the dehydration the cabin already causes

Electronics

  • Headphones, plus a cheap wired pair as a backup for the in-flight system
  • A power bank -- in the cabin, never checked. See power banks
  • A short charging cable, because seat sockets are in awkward places
  • Downloaded media. Do not rely on in-flight wifi or the seat-back system working
  • An adapter if the aircraft has unusual sockets, though USB is now near-universal

Admin and health

  • Medication, in labeled containers, in enough quantity for delays
  • Passport, tickets and any documentation, in one place
  • A pen, for landing cards
  • Hand sanitizer and wipes, within the liquids allowance
  • A small amount of local currency, for arrival

02 — Scaling

Short flight versus long flight

Under 3 hours3 to 6 hoursLong haul
Warm layerWorth itYesYes
HeadphonesYesYesYes, over-ear if you have them
Water bottleUsefulYesEssential
SnacksOptionalYesYes, plus something substantial
Eye mask and earplugsNoIf you want to sleepYes
Travel pillowNoMaybeYes, if you sleep upright
Compression socksNoOptionalWorth considering
ToothbrushNoNoYes
Change of clothesNoNoWorth it on very long flights

03 — Technique

Staying comfortable on a long flight

The gear matters less than the behavior, and most of the behavior is free.

  1. 01Drink water steadily. Cabin humidity is far lower than at ground level, and most in-flight discomfort is partly dehydration. Fill your bottle before boarding rather than waiting for service.
  2. 02Move when it is safe to do so. Walk the cabin, and flex your ankles and calves in your seat. Prolonged immobility is associated with an increased risk of blood clots, which is why public health bodies recommend moving on long flights.
  3. 03Do not cross your legs for long stretches, which restricts circulation at the knee.
  4. 04Take your shoes off, but wear socks. Feet swell at altitude; thick socks make that comfortable without putting your feet on the cabin floor.
  5. 05Set your watch to the destination time when you board, and eat and sleep on that schedule rather than on departure time.
  6. 06Go easy on alcohol. It worsens both dehydration and sleep quality, which is the opposite of what a long flight needs.

04 — Accessibility

What to keep in a pocket, not a bag

There is a tier below the personal item: things you want without reaching under the seat, which on a full flight with a tray table down is genuinely awkward.

  • Phone, boarding pass and passport during boarding and landing
  • Headphones, so you are not digging for them during taxi
  • Lip balm, which you will want repeatedly
  • A snack, for the stretch before service
  • Earplugs, for takeoff if cabin noise bothers you

What to buy

The gear we would buy for this

Trail & Terminal earns a commission when you buy through our Amazon links, at no extra cost to you. It does not change which products we pick -- see our affiliate disclosure and selection method.

1

Best for sleeping upright

Trtl Pillow Plus

Supports the side of your head, which is where it actually falls. Packs flat.

A U-shaped pillow pushes your head forward off the headrest and supports behind your neck, where your head does not fall. A brace against the side of your neck is what actually holds your head up. See <a href="/carry-on/best-travel-pillows">travel pillows</a>.

Specs

  • Internal shaped support brace
  • Fleece wrap fastening around the neck
  • Adjustable height
  • Packs flat rather than as a ring

Good for

  • Addresses the real failure mode -- heads fall sideways, not backwards
  • Packs flat, so it clips to a bag
  • Height adjusts for different necks

Bad at

  • The fleece is warm on a hot flight
  • Looks unusual
  • Supports one side at a time
2

Best for long flights

Comrad Knee-High Compression Socks

15-20 mmHg is the range usually suggested for travel. Measure your calf before buying.

Graduated compression is one of the measures public health bodies list for long flights, alongside moving around and staying hydrated. It is not a substitute for moving. For your own situation, a clinician is the right source. See <a href="/carry-on/best-compression-socks-for-flying">compression socks for flying</a>.

Specs

  • 15-20 mmHg graduated compression
  • Nylon and spandex knit
  • Sizing based on shoe size and calf circumference
  • Wide calf versions available

Good for

  • The range most travelers actually want
  • Sizing uses calf measurement, which is what matters
  • Wide calf options, which many brands lack

Bad at

  • Synthetic gets warm over many hours
  • Thin sole with no cushioning
  • Most of the range differences are cosmetic
3

Best for keeping a phone alive

Anker PowerCore 10000

Pocket-sized, roughly two phone charges, and comfortably inside typical airline battery limits.

Seat sockets are unreliable and awkwardly placed, and a flat phone on arrival is a genuine problem for navigation and tickets. Lithium batteries must be in the cabin rather than checked. See <a href="/camp/best-portable-power-banks-for-camping">power banks</a>.

Specs

  • 10,000mAh rated cell capacity
  • USB-C input and output
  • Pocket-sized
  • Anker's standard warranty

Good for

  • Small enough to keep in a jacket pocket
  • About two phone charges, which covers a long travel day
  • Well inside the capacity limits airlines commonly set

Bad at

  • Not enough for a laptop
  • No pass-through on some versions
  • Only a battery

Questions

Frequently asked

What should I bring on an airplane?
Headphones, an empty bottle to fill after security, a warm layer, lip balm, snacks, a charging cable and power bank, and medication. Keep all of it within reach rather than in the overhead bin, because once the bin closes you are not opening it.
What is the most forgotten thing to bring on a flight?
A warm layer. Cabins run cold, blankets are not guaranteed on every flight, and once the bin is closed your sweater is unreachable. After that, lip balm and a bottle to fill after security -- both small, both noticed within an hour.
How do I stay comfortable on a long flight?
Drink water steadily, move around the cabin when it is safe, flex your ankles while seated, avoid crossing your legs for long periods, take your shoes off but wear socks, and go easy on alcohol. The behavior matters more than the gear.
Can I bring an empty water bottle through security?
Yes -- empty it before the checkpoint and fill it after. Most airports have water fountains or bottle fillers past security, and cabin air is dry enough that having your own water rather than waiting for service makes a real difference on a long flight.
Do I need a travel pillow?
Only if you sleep upright on flights, and then pick one that supports the side of your head or under your chin rather than a U-shape behind your neck. For many people an eye mask and earplugs do more for sleep than any pillow, and cost far less.

References

Back up a level

This page sits in Carry-On -- flight kit that fits the bin and the personal-item slot.

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