7 Things to Check Before an International Flight

Passport Validity and Entry Requirements

Having a valid passport isn't always enough. Some destinations require your passport to remain valid for several months beyond your planned travel dates. You may also need a visa or electronic travel authorization.

Check the requirements for your nationality, destination, and any countries where you will enter during a connection. Review your passport's expiration date and available pages.

Travel tip: Check official entry requirements before booking and again shortly before departure.

Carry-On and Checked Baggage Rules

Baggage allowances can vary by airline, ticket type, route, and operating carrier. A suitcase accepted on one flight might exceed the limits on another.

Review carry-on dimensions, personal-item limits, checked-bag weight allowances, and extra baggage fees. Pay special attention when your journey includes multiple airlines.

Travel tip: Measure your suitcase including wheels and handles, and check the rules for every flight.

Flight Connections and Airport Transfers

A connection may involve more than walking to another gate. You might need to change terminals, pass through immigration, collect and recheck baggage, or complete another security screening.

Review your connection time, airport layout, ticket arrangements, and whether your bags will be transferred to the next flight.

Travel tip: A connection that looks comfortable on paper may become tight when border checks or terminal transfers are involved.

Airport Security and Restricted Items

Airport security rules affect what you can pack in your carry-on and checked baggage. Liquids, batteries, sharp objects, and other items may have specific restrictions.

At standard TSA checkpoints in the United States, the general carry-on liquids rule limits most liquids, gels, and aerosols to containers of 3.4 ounces (100 milliliters) or less in one quart-size bag. Exceptions and different screening procedures may apply.

Check the security rules for every airport on your route, particularly when traveling internationally.

Travel tip: Never assume that an item permitted through one airport will be accepted at another.

Customs, Food, and Local Restrictions

Some everyday products can become restricted items when crossing an international border. Fresh food, meat products, plants, and certain other goods may require declarations or may be prohibited.

Check the customs requirements of your destination and the rules that apply when returning home. Travelers entering the United States must declare agricultural products, even if they believe those items are permitted.

Travel tip: When unsure about food or agricultural products, check official customs guidance before packing.

Airport Transportation and Accommodation Details

Your flight may arrive late at night or at an airport far from your accommodation. Before departure, check how you will reach your hotel and whether transportation is available at your arrival time.

Review hotel check-in hours, late-arrival procedures, local transportation options, and any additional accommodation charges.

Travel tip: Confirm late check-in directly with your accommodation if your arrival time is uncertain.

Unexpected Costs and Your Final Travel Plan

The airfare is only one part of your travel budget. Checked baggage, seat selection, airport transfers, local taxes, roaming, and other extras can increase the total cost of a trip.

Before leaving, review your reservations together: flights, connections, baggage, accommodation, transportation, and entry requirements.

Travel tip: Look at the entire journey rather than checking each reservation in isolation.