Your First Long-Haul Flight: A Practical Guide

Last reviewed: May 26, 2026

A long international flight is straightforward once you have done one, and mildly stressful when you have not. Almost all of the stress comes from not knowing what happens next, so here is what the day looks like, in order.

Documents, and how to carry them

Your passport, any visa or entry authorisation, your booking references and your insurance details travel in your hand luggage, never in the bag you check in. Keep a photograph of each on your phone and a copy somewhere online you can reach, and leave a copy with somebody at home.

Check that the name on your ticket matches the name in your passport exactly. A middle name that appears on one and not the other is worth querying before the day of travel, not at the counter. Some destinations also want proof of onward travel and an address where you will be staying, so keep those handy.

Baggage

Baggage allowances depend on your airline, your fare and sometimes your route, and they can differ between the flights of a single journey. Check what you are allowed for both checked and cabin bags, including the weight and the size, and check it for every leg rather than paying for an extra bag at the counter.

Pack a change of clothes, essential medication in its original packaging, chargers, a plug adaptor and anything you cannot replace in your cabin bag. Bags do occasionally go missing, and the first twenty-four hours are much easier if yours does not take everything with it. Remember that liquids in the cabin are restricted, and that the limits are enforced at every security check including any you pass through in transit.

Layovers and connections

A connection is the part of a long-haul journey most likely to go wrong, and how it works depends on how it was booked. On a single ticket, the airline is responsible for getting you to your destination and will usually rebook you if a delay makes you miss the next leg. Two separately booked tickets are two separate contracts, and a missed connection is your problem to solve and to pay for.

Give yourself more time than the minimum. A short connection looks efficient on a screen and feels very different when you land late in a large airport and have to change terminals, clear security again, and find a gate. Ask when you book whether your bags are checked through to the final destination or whether you collect and re-check them, and whether the airport you are changing at requires any permission or visa just to transit. Those two questions prevent most connection disasters.

At the airport

Arrive well ahead of the recommended check-in time for an international flight, particularly in a school holiday or a peak period. You will check in, drop bags, clear security, and then pass through passport control on the way out of the country. Have your passport and boarding pass out and accessible for each of those, and be ready to remove electronics and liquids at security.

Once you are through, find your gate first and then relax. Gates can be a long walk away, and knowing where yours is turns the wait into a break.

On board

• Set your watch and your phone to the destination time as you board, and start thinking in that time zone.
• Drink water regularly. Cabin air is very dry and dehydration makes everything about the flight worse.
• Get up and walk every couple of hours, and move your ankles while seated. It helps circulation on a long flight.
• Sleep according to the destination clock if you can, not according to how tired you feel.
• Keep alcohol modest. It disrupts the sleep you are trying to get and worsens the dehydration.
• An eye mask, earplugs or headphones, and a light layer for the cold are the three items people wish they had packed.

Jet lag

Long flights that cross several time zones will leave you out of step for a few days. The most reliable help is daylight: get outside during daylight hours at your destination, eat meals at local mealtimes, and resist the long afternoon nap on the first day no matter how much you want it. Where possible, plan a gentle first day rather than an early tour, and do not book anything unmissable for the morning after you land.

Arriving

You will clear immigration, collect your checked bags, and pass through customs. Have your passport, any entry documentation and your accommodation address ready, and answer questions simply and honestly. Know before you land what you may not bring into the country, particularly food, plant material and large amounts of cash, because customs rules differ everywhere and ignorance is not a defence.

Arrange your transfer from the airport before you travel, or at least know exactly which official taxi rank or transport option you are using. Arrival is when you are most tired, least oriented and most obviously a visitor, which is the wrong combination for improvising. Keep your passport, cards and cash split between two places, use the room safe where there is one, and carry only what you need for the day.

Send us your route and your connection times before you commit to a fare and we will flag anything that looks tight.