PRE-TRIP
Things to do before an international trip: a pre-departure checklist
Most problems abroad start as unfinished chores at home. Work through seven days out, two days out and the departure day, then leave.
Quick answers
How early should I arrive for an international flight?
About three hours is the usual advice. Red-eyes, families, checked bags or a slow security line need more. Follow the airline and airport on the day.
What matters most seven days before departure?
Anything that waits on someone else: passport and visa checks, insurance, unlocking the phone or ordering an eSIM, card permissions and a bank travel notice. Do not leave these until departure day.
When should I install a travel eSIM?
Install on home Wi-Fi. Most plans should stay off until you arrive. Installing after landing fails without a network. Keep the home SIM for SMS and turn off its data roaming.
How much passport validity do I need?
Follow the destination’s official rule. Many countries want six months beyond arrival. Counting only to your return date is not enough.
01Use a timeline; do not finish this at the airport#
Visas, phone unlocks and insurance wording need working days. Split the list: seven days out for anything that waits on someone else, two days out for downloads and weighing, departure day for documents and walking. The table is a checklist, not a legal list.
A common rule of thumb is about three hours before an international flight. Red-eyes, families and checked bags need more. Follow the airline and the airport on the day.
| When | Must be done | Can run in parallel | If you leave it until D-day |
|---|---|---|---|
| 7 days out | Passport and visa, policy wording, phone unlock / eSIM order, card permissions abroad | Bank travel notice, vaccines or health forms | Support queues and a plan that will not install |
| 2 days out | Offline maps and phrases, weigh bags, export boarding pass and hotel voucher | Empty the fridge, leave keys, text one person the itinerary | Overweight fees at the highest airport rate |
| Departure day | Flight status, documents in reach, liquids and power bank packed for screening | Arrive ~3 hours early; finish large drinks before security | A missed flight or a repack at the X-ray |
02Documents and bookings#
Check passport validity, visa and entry permission on the destination’s official page, not only the booking email. Some countries want six months’ validity on arrival. Keep digital copies of the boarding pass, hotel, transport and insurance; store originals and photocopies apart.
Carry only the documents you need that day; the rest goes in the hotel safe. If a connection changes terminals, check whether you clear immigration or security again, including any transit-visa rule.
03Phone and data#
Install or confirm the start time of an eSIM, local SIM or roaming pack before you fly. Buying after landing fails when you have no network to download an app. Offline maps, the airline app and transit apps go on home Wi-Fi.
Save the hotel address in the local script, emergency numbers and the consulate on the phone so they open offline. Leave home-SIM data roaming off so it does not bill beside the travel eSIM.
04Money, home and health#
Confirm the cards will work abroad and note the foreign fee; carry a little local cash. If the bank wants a travel notice, send it seven days out so the first charge is not blocked.
At home: stop food that will spoil, arrange keys and mail, switch off what you can, and tell one person the itinerary. Pack prescriptions in original boxes with a copy, and check vaccines or health declarations for the destination.
05At the airport on the day#
Check the flight once more before you leave the house. Documents and boarding pass in an outer pocket. Power banks, liquids and laptops packed for screening, not buried in a checked bag. Liquids are typically 100 ml per bottle in one clear bag.
Check bags first, then security. Families and extra screening will use the full three hours. This site’s luggage tool can compare a weighed bag with a limit; it does not replace the number on the airline’s page.
06Connections, red-eyes and the night before#
A connection is a second departure. If you change terminals or airlines, you may need a transit visa, a second screening, and time to collect and re-check a bag. Minimum connection times on the ticket are legal minima, not a promise that immigration is fast. On a self-transfer (two tickets), a late inbound is usually your problem: insurance and the inbound airline may not rebook the outbound. Download or print both boarding passes, and know which desk to visit if the inbound is late. A three-hour buffer for an international arrival does not automatically apply to a 55-minute domestic connection. While you still have airport Wi-Fi, screenshot the inbound gate and the onward flight number.
The night before is for sleep and a bag that is already weighed and closed, not for installing an eSIM. Charge the phone and power bank at the socket by the door; put liquids and the laptop where you can pull them at X-ray without unpacking the cube. Set two alarms that do not depend on hotel Wi-Fi. A red-eye after a 2 a.m. repack is how documents get left in the other pouch. If laundry or work must finish, move it to two days out, not to the airport road. This site’s flight-time tool estimates hours in the air; it does not tell you when to leave for the airport. Leave with the charger in the bag, not still in the wall: the last unplug is when adapters get left behind.
07Common mistakes#
Leaving unlock, insurance and visas until the night before; installing the eSIM after landing; carrying one card; counting passport validity to the return date instead of the entry rule. Overweight at the desk almost always costs more than buying extra weight online or leaving a jumper out.
Pulling a power bank out of a checked bag at X-ray, or a full-size bottle that is not in the 100 ml bag, is how boarding gets missed. The list exists so those jobs happen at home, with Wi-Fi, a scale and a support chat.
08One last scan at the door#
Passport and visa, phone with eSIM or offline maps, cards and a little cash, medication, charger and adapter, bags already weighed. The itinerary you send home can be one message; it does not need a public post.
Entry rules change. Follow the destination government and the airline on the day. This page is a sequence of chores, not visa or customs advice.
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MORE GUIDES
Keep reading before you go
How many days is 3 nights? What “3 days 2 nights” means
Hotel “3 nights” and a tour’s “3 days 2 nights” are not the same unit. Split nights from calendar days before you match a leave form or the morning you fly home.
What to pack for international travel: a checklist that fits a carry-on
Read the airline’s size and weight first, then pack for the number of days. A bag that fits the sizer empty may not when it is full.
Airport security: liquids, electronics and batteries
Most checkpoint queues come from three things: oversize liquid bottles, a laptop buried in the bag, and a power bank in checked luggage. Departure and transfer airports can disagree; pack to the stricter stop.