How early should I arrive at the airport for an international flight?

3 hours before departure is the standard recommendation for international flights. If you are checking bags or it is your first time traveling internationally, arrive 3.5 hours early. International check-in, passport control, and security all take longer than domestic.

International Travel Checklist (2026)

Everything you need to do before flying internationally, organized by how far in advance to act. Start with passport validity — it's the #1 reason travelers are denied boarding on international flights.

6+ Weeks Before Travel

Passport validity — Most countries require 6 months of validity beyond your return date. US passport renewals take 8–11 weeks standard. Check now.
Visa requirements — Check the US State Department (travel.state.gov) for every country you're visiting. Some visas require weeks of advance application.
Vaccines and health documentation — Yellow fever certificate required for many African and South American countries. Check CDC Traveler's Health (wwwnc.cdc.gov/travel).
Travel insurance — Buy within 14–21 days of first trip payment to access pre-existing condition coverage and Cancel for Any Reason options.
Global Entry — Apply now if you don't have it. Takes 4–6 weeks. Speeds up US customs return and includes TSA PreCheck.

2–4 Weeks Before Travel

Notify your bank and credit cards of travel dates and destinations to prevent fraud blocks.
Set up international phone plan (T-Mobile free in 200+ countries; AT&T/Verizon $10/day international day pass).
Research local currency — withdraw from ATMs on arrival for better rates than airport kiosks.
Buy outlet adapter for your destination (Europe: Type C/E/F; UK: Type G; Australia: Type I).
Email yourself copies of passport, visa, travel insurance, and hotel confirmations.

Day of Departure

Arrive 3 hours early for international flights (3.5 hours if checking bags or first-time international).
Keep your passport in your carry-on or personal item — never in checked luggage.
Have visa documents and health certificates ready to show at check-in.
Download offline maps (Google Maps) and save key phone numbers (hotel, embassy, travel insurance emergency line) before leaving home.

Official sources: US State Department Travel (travel.state.gov) · CDC Traveler's Health (cdc.gov) · US Customs & Border Protection (cbp.gov)