What happens if you don't check in online for a flight?
On most airlines, nothing serious happens: online check-in is optional, and you can check in at the airport counter or a self-service kiosk instead. The main downsides are lines, fewer seats to choose from and, on some low-cost airlines such as Ryanair, a fee for checking in at the airport. What you can't do is skip check-in altogether: if you don't check in before the deadline, you can't board and are usually treated as a no-show.
What changes if you skip online check-in
- You check in at the airport. At a kiosk or desk, with your passport or ID and booking reference.
- You must make the cutoff. Airport check-in and bag drop close before departure, often 45–60 minutes ahead and earlier for international flights. Arriving late can mean being refused boarding.
- Seat choice is narrower. By the time you reach the counter, the best free seats may be gone.
- Possible fees. Some ultra-low-cost carriers charge to issue a boarding pass at the airport.
- On overbooked flights, passengers who check in last are more likely to be bumped.
Why online check-in helps
- You choose from all free seats as soon as check-in opens, usually 24 hours before departure.
- You get a boarding pass on your phone and can go straight to security if you have no checked bags.
- You confirm you're traveling, which helps the airline plan.
When you still need the counter
Even after checking in online, you must visit a desk or bag drop if you are checking luggage, and on some international flights the airline needs to see your passport and visa before you board.
FAQ
Why can't I check in online for my flight?
Common reasons: check-in isn't open yet, the airline needs to verify your passport or visa for an international trip, the ticket was booked through another airline or agency, or the booking includes a lap infant or special assistance. In those cases, check in at the airport.
What happens to my seat if I forget to check in online?
If you already had an assigned seat, you usually keep it and just check in at the airport. If you had no seat, one is assigned at check-in; on a full flight, late check-in raises the risk of being bumped.
Do I go straight to security if I checked in online?
Yes, if you have no bags to check and your boarding pass is on your phone or printed.
How soon before a flight can I check in online?
Most airlines open online check-in 24 hours before departure; some open it 48 hours or earlier.
Do I need a printed boarding pass after online check-in?
Usually not; a mobile boarding pass works on most airlines. Some low-cost carriers or airports still require a printout.