Southwest Airlines flight check-in
United States
Quick answer
Southwest Airlines online check-in opens 24 h before departure and closes 30 min before departure. Online check-in is free.
| Online check-in opens | 24 h before departure |
|---|---|
| Online check-in closes | 30 min before departure |
| Airport counters close | 30 min before departure |
| Check-in fee | online check-in is free |
| Boarding pass | mobile boarding pass, print at home |
| Mobile app check-in | available |
| Self-service kiosks | available |
Times apply to most routes; long-haul, US and some airport-specific deadlines differ. Confirm on the official website before travelling.
How online check-in works
1
Open the airline website or app and enter your booking code and last name
Online check-in
Booking codeA1B2C3
Last nameSMITH
Continue
2
Pick a seat and confirm your travel details
Select your seat
Confirm
3
Download or print your boarding pass
Boarding pass
SMITH / JOHN14A
Online check-in opens exactly 24 hours before your scheduled departure time and closes 30 minutes before departure for domestic flights or 60 minutes for international flights. There are no fees for check-in via any method.
Steps to check in online:
- Visit Southwest.com or open the Southwest mobile app 24 hours before departure.
- Enter your confirmation number and last name.
- Select your boarding position (based on your check-in time).
- Receive your boarding pass digitally or print it at home or airport kiosks.
Practical tip: Set a reminder for exactly 24 hours before departure to secure an earlier boarding position, especially for popular routes or peak travel times.
What if I miss online check-in?
You can still check in at airport kiosks or the ticket counter, though you may receive a later boarding position. However, check-in at the counter closes 30 minutes before domestic departures and 60 minutes before international departures.
Can I check in at the airport without using online check-in?
Yes. You can use self-service kiosks or the ticket counter for check-in on the day of travel, but online check-in 24 hours in advance typically gives you a better boarding position at no additional cost.