Airport arrival guide
How Early Should You Get to the Airport?
TSA recommends 2 hours before a domestic flight and 3 hours before an international flight. Those are starting points: layer in airport-published TSA waits, your airline's own bag-drop cutoff, and drive time to reach a real leave-time decision.
Decision floor
2h domestic / 3h international
Trust the official TSA baseline first, then let fresh published line length and airline deadlines decide whether you need more time.
Do not miss
Bag drop can be the real deadline.
TSA lines matter, but airlines can stop accepting checked bags before you reach the counter. Verify the carrier cutoff before assuming a short security wait makes the trip safe.
TSA baseline
2h domestic / 3h international
Use this as the floor, not the final answer.
Binding cutoff
Airline bag-drop deadline
If you check bags, this can beat the TSA math.
Airport friction
Parking, terminal, checkpoint
This is where the same flight can need a different plan.
Source check
TravelTSA + airline app
Re-check shortly before leaving; published airport data can change.
Pick the closest traveler profile
The right answer changes by constraint, not just flight type
Carry-on, domestic, known airport
Start at 2 hours, then reduce only if fresh published waits are low, parking is simple, and you already have a mobile boarding pass.
Checked bag or family trip
Treat the airline bag cutoff as the hard deadline and add 20-30 minutes for kiosks, strollers, or counter lines.
International or document check
Use the 3-hour floor and keep extra time for passport checks, visa review, and longer airline counter queues.
The formula
A concrete arrival-time calculation
Start from the TSA floor (2 hours domestic / 3 hours international), then adjust with the variables below. If any number is unknown, use the TSA floor as-is until you can check it.
| Step | Input | Typical value |
|---|---|---|
| 1 | TSA floor | 120 min domestic · 180 min international |
| 2 | Airline bag-drop cutoff | 30-60 min before departure (see table below) |
| 3 | Live TSA line length | TravelTSA live board / airport guide |
| 4 | Drive time + traffic | Use your mapping app at the expected departure time |
| 5 | Parking, shuttle, or rental return | 10-25 min for airport-owned lots; 20-40 min for off-site shuttles |
| 6 | Terminal walk to gate | 5-20 min (longer at ATL, DFW, DEN, LAX) |
Take the greater of (TSA floor) and (drive + parking + TSA line + gate walk + 15 min buffer). If bag drop closes earlier than that, leave for the earlier time.
Airline check-in and bag-drop cutoffs
Airline-specific cutoffs (major U.S. carriers)
Bag-drop and check-in cutoffs are set by each airline, not by TSA. If you are checking bags, your airline's cutoff is usually the binding deadline, not the TSA line.
American Airlines
- Domestic cutoff
- 45 min before departure (check-in and bag drop)
- International cutoff
- 60 min before departure
Delta Air Lines
- Domestic cutoff
- 30 min before departure (45 min with bags at some airports)
- International cutoff
- 60 min before departure
United Airlines
- Domestic cutoff
- 45 min before departure (bag drop)
- International cutoff
- 60 min before departure
Southwest Airlines
- Domestic cutoff
- 30 min before departure (boarding cutoff 10 min)
- International cutoff
- 60 min before departure
JetBlue
- Domestic cutoff
- 40 min before departure (bag drop)
- International cutoff
- 60 min before departure
Alaska Airlines
- Domestic cutoff
- 40 min before departure (bag drop)
- International cutoff
- 60 min before departure
Cutoffs can vary by airport (e.g., some Delta stations enforce a 45-minute bag cutoff). Always verify on the airline's own page for your specific airport.
TSA sources
Official TSA references
Popular airports
Combine with a source-backed airport guide
Regional starting points