Online Check-in Guide
Use online check-in to prepare before the airport, while confirming any baggage or document checks that still apply.
Understanding Online Check-in
Online check-in lets you confirm your trip through the airline website or app before you reach the airport. It can reduce airport steps, but seat choices, baggage handling and document checks still depend on the airline, route and ticket.
Online check-in opening times vary by airline, route and ticket type, so confirm your flight's check-in window before departure.
How Online Check-in Works
Access Check-in
Visit the airline website or app during the published check-in window
Enter Details
Provide confirmation number and passenger information
Select Seats
Choose seats or confirm existing seat assignments
Get Boarding Pass
Download mobile boarding pass or print at home
Benefits of Online Check-in
Skip Lines
Reduce some airport check-in steps when no counter check is required
Seat Options
Review remaining seat options, subject to fare rules and availability
Early Boarding
Some airlines may display boarding options after check-in
Mobile Convenience
Use your phone as boarding pass
Airline Check-in Times
| Airline | Domestic Check-in | International Check-in | Cutoff Time |
|---|---|---|---|
| American Airlines | Often 24 hours | Often 24 hours | Check AA policy |
| Delta Air Lines | Often 24 hours | Often 24 hours | Check Delta policy |
| United Airlines | Often 24 hours | Often 24 hours | Check United policy |
| Southwest Airlines | Often 24 hours | Often 24 hours | Check Southwest policy |
| JetBlue Airways | Often 24 hours | Often 24 hours | Check JetBlue policy |
| Alaska Airlines | Often 24 hours | Often 24 hours | Check Alaska policy |
Practical Tips for Online Check-in
Check in Early
Check in when your airline's published window opens if seat availability matters to you.
Use Mobile Apps
Airline apps may offer useful trip tools, saved documents and check-in reminders.
Save Boarding Pass
Save your mobile boarding pass to your phone's wallet for offline access.
Don't Wait Too Long
Check-in cutoff times vary by airline, airport, route and baggage needs; do not wait until the last minute.
Check Baggage Requirements
Some airlines require you to check bags at the airport even after online check-in.
Verify International Requirements
International flights may require passport verification at the airport.
Frequently Asked Questions
When can I check in online?
Online check-in opening times vary by airline, route, ticket type and frequent-flyer status. Check the published window for your booking.
Can I change my seat after online check-in?
Seat changes after check-in depend on availability, fare rules and the airline's system. Some seats may require payment or may no longer be available.
Do I need to print my boarding pass?
Many airports accept mobile boarding passes, but some trips still require document checks or printed passes. Keep an offline or paper backup when possible.
What if I can't check in online?
If online check-in isn't available, you can check in at the airport using kiosks or the check-in counter. Arrive early to avoid delays.