How Early Should You Get to the Airport?

Sensible arrival times for domestic and international flights, when to add a buffer, and how to think about it on a busy travel day.

By WarBird Flight editors · Updated September 25, 2026 · 2 min read

The usual guidance

As a starting point, plan to be at the airport about two hours before a domestic flight and three hours before an international one. That is not a rule handed down by any single authority — it is the cushion that covers a normal check-in, bag drop, and security line with enough margin that a slow moment does not cost you the flight. Treat it as the floor on a quiet day, not the ceiling.

When to add more time

Several things push the number up, and they stack.

Big travel days — the day before Thanksgiving, Sunday of a holiday weekend, summer Fridays — when security lines swell.
A large or unfamiliar airport where the walk to the gate is long, or where you take a train between terminals.
Checking a bag, checking in a firearm, or traveling with a pet, all of which need a counter and a cutoff.
Traveling with young children, a wheelchair, or anyone who cannot move quickly through the airport.
An international departure, where check-in and document checks close earlier than you might expect.

Know the cutoffs, not just the guidance

Every airline has hard cutoffs: a time by which you must have checked a bag and a time by which you must be at the gate, after which they can give your seat away even though you are in the building. These are typically 30–45 minutes for a bag and 15–30 minutes at the gate for domestic, and longer internationally, but they vary by airline and airport. Missing a cutoff by a minute is treated the same as missing it by an hour, so the arrival time that matters is the one that clears the cutoff with room to spare, not the boarding time on your pass.

If you cut it close and miss it

Programs like TSA PreCheck shave time off security and can justify a slightly later arrival, but they do not change the airline's cutoffs. If a line or traffic means you are going to miss a flight, calling ahead beats showing up and hoping — an agent may be able to move you to a later flight before you are marked a no-show, which protects the ticket's value. Call (708) 866-8751 and an agent will tell you your airline's cutoffs and options for your specific flight.