| Azul Brazilian Airlines | 72 hours before departure | 90 minutes before domestic departures, 1 hour 30 minutes before international departures | Yes |
| Eurowings | 72 hours before departure | 3 hours before departure generally, 40 minutes before departure at most German airports, 45 minutes at London Heathrow and Palma de Mallorca | Yes |
| Aeromexico | 48 hours before departure for domestic flights, 24 hours before departure for international flights | 30 minutes before domestic flights, 40 minutes before international flights (at the boarding gate with boarding pass in hand); 90 minutes before domestic, 180 minutes before international (at the airport counter without boarding pass) | Yes |
| LATAM Airlines | 48 hours before departure | 2 hours before departure for online check-in (counter closes 60 minutes before domestic, 2 hours before international) | Yes |
| Avianca | 48 hours before departure, or 24 hours for flights to/from the US, Puerto Rico, and Canada | 60 minutes before international flights and 45 minutes before domestic flights in Colombia and Ecuador | Yes |
| GOL Airlines | 48 hours before departure for domestic and international flights, 24 hours before departure for flights to the United States | 1 hour before departure for most flights (2 hours before departure at the service counter for flights departing from Caracas) | Yes |
| Emirates | 48 hours before departure | 90 minutes before scheduled departure | Yes |
| Qatar Airways | 48 hours before departure for most flights, 24 hours before departure for flights to/from the U.S. | 90 minutes before departure | Yes |
| Saudia | 48 hours before departure | 1 hour before departure for domestic and international flights | Yes |
| Oman Air | 48 hours before departure | 60 minutes before departure for most flights (90 minutes for some international flights) | Yes |
| Aer Lingus | 48 hours before departure for flights within Europe (15 days for Plus/Advantage/AerSpace fares or Saver with purchased seat); 24 hours before departure for transatlantic flights | 60 minutes before departure for most European flights; 1 hour 35 minutes before departure for transatlantic flights | Yes |
| ITA Airways | 48 hours before departure (24 hours for USA/Canada flights, 30 hours for connecting flights with partner airlines) | 40 minutes before domestic flights, 60 minutes before long-haul international and non-Schengen flights | Yes |
| Norwegian Air | 48 hours before departure for most flights within Europe | 30 minutes before domestic flights (45 minutes at Arlanda), 45 minutes before international flights, and 1 hour before international flights to/from UAE, Egypt, Israel, Morocco, Geneva, Istanbul, Beirut, Tbilisi and Antalya | Yes |
| Singapore Airlines | 48 hours before departure | 1.5 hours (90 minutes) before departure | Yes |
| Cathay Pacific | 48 hours before departure for Cathay members and oneworld members, 24 hours before departure for non-members | 60 minutes before departure (exceptions: 40-60 mins for Chinese Mainland, 50 mins for Hanoi and Ho Chi Minh City) | Yes |
| Korean Air | 48 hours before departure (24 hours for US/Canada flights) | 30 minutes before departure for domestic flights, 1 hour before departure for international flights | Yes |
| Asiana Airlines | 48 hours before departure for international flights (24 hours prior to departure for U.S. routes including Saipan), and 24 hours before departure for domestic flights. | 30 minutes before departure for domestic flights, and 1 hour before departure for international flights (70 minutes prior to departure for free advance seat cancellation). | Yes |
| Malaysia Airlines | 48 hours before departure | 90 minutes before departure for most flights, airport counters close 60 minutes before departure | Yes |
| Garuda Indonesia | 48 hours before departure | 2 hours before departure for domestic flights, 4 hours before departure for international flights | Yes |
| EVA Air | 48 hours before departure | 1 hour before departure | Yes |
| China Airlines | 48 hours before departure (24 hours for flights to the US, including Guam) | 60 minutes before departure | Yes |
| China Eastern Airlines | 48 hours before departure for domestic flights, 24 hours for US/Canada routes | 45 minutes before domestic flights, 60 minutes before international flights | Yes |
| IndiGo | 48 hours before departure for domestic flights, 24 hours before departure for international flights | 60 minutes before domestic flights, 75 minutes before international flights | Yes |
| Air India | 48 hours before departure | 60 minutes before domestic, 120 minutes before international (75 minutes at Delhi Airport) | Yes |
| SpiceJet | 48 hours before departure | 60 minutes before domestic departures, 75 minutes before international departures | Yes |
| Vistara | 48 hours before scheduled departure time | 1 hour before domestic flights, 2 hours before international flights | Yes |
| Fiji Airways | 48 hours before departure | 1 hour before international flights, 45 minutes before domestic flights | Yes |
| Virgin Australia | 48 hours before departure for domestic flights (online check-in currently unavailable for international flights) | 30 minutes before domestic flights, 60 minutes before international flights | Yes |
| Jetstar | 48 hours before departure | 40 minutes before domestic flights, 2 hours before international flights | Yes |
| Ethiopian Airlines | 48 hours before departure | 2 hours before departure for online check-in. At the airport: 1 hour before international flights and 45 minutes before domestic flights. (Exceptions: LHR, MAN close 75 mins before; CDG closes 90 mins before). | Yes |
| EgyptAir | 48 hours before departure | 90 minutes before departure for online check-in; airport counters close 60 minutes before international and 30 minutes before domestic flights | Yes |
| Royal Air Maroc | 48 hours before departure | 2 hours before departure for online check-in, and 60 minutes before departure at airport counters | Yes |
| TUI fly | 30 days before departure with seat reservation, or 48 hours before departure without seat reservation | 45 minutes before departure (60 minutes for flights from Tel Aviv) | Yes |
| Starlux Airlines | 48 hours before departure for flights to/from Asia, 24 hours before departure for flights to/from North America | 1 hour before departure | Yes |
| Peach Aviation | 90 minutes before domestic flights, 120 minutes before international flights (App Auto Check-in available 48 hours before) | 30 minutes before domestic flights, 50 minutes before international flights | Yes |
| Austrian Airlines | 47 hours before departure (24 hours for flights to the USA) | 60 minutes before departure for international flights, 45 minutes for domestic flights | Yes |
| Finnair | 36 hours before departure (24 hours for direct flights to the United States) | 45 minutes before departure for flights within Europe; 1 hour before departure for flights to Asia, Central America, and Middle East; 75 minutes before departure for flights to the United States. | Yes |
| TAP Air Portugal | 36 hours before departure (24 hours for flights to/from the USA) | 45 minutes before domestic and European flights, 60 minutes before intercontinental flights | Yes |
| LOT Polish Airlines | 36 hours before scheduled departure | 120 minutes (2 hours) before departure | Yes |
| Air China | From 20:00 two days before departure for domestic flights, and 36 hours before departure for international flights | 30 minutes before departure for domestic flights and 60 minutes before departure for international and regional flights | Yes |
| Etihad Airways | 30 hours before departure | 60 minutes before departure for Economy, 45 minutes for Business/First class, and 2 hours for US flights | Yes |
| Lufthansa | 30 hours before departure | 45 minutes before domestic flights, 60 minutes before international flights | Yes |
| Air France | 30 hours before departure (24 hours for Delta flights from the US, or Air France flights from Atlanta and Detroit). | Varies by departure point. Generally 40 minutes before departure for domestic/short-haul flights, and 60-90 minutes before departure for international/long-haul flights. | Yes |
| KLM Royal Dutch Airlines | 30 hours before departure (24 hours for flights to/from the United States). | European flights: 40 minutes before departure. Intercontinental flights: 60 minutes before departure. | Yes |
| Scandinavian Airlines (SAS) | 30 hours before departure | 1 hour before departure | Yes |
| Kenya Airways | 30 hours before departure (24 hours for flights involving the United States) | 1 hour before departure for international flights, 30 minutes before departure for domestic flights | Yes |
| American Airlines | 24 hours before departure | 45 minutes before domestic flights, 90 minutes before international flights | Yes |
| Delta Air Lines | 24 hours before departure | 45 minutes before domestic flights, 60 minutes before international flights | Yes |
| United Airlines | 24 hours before departure | 45 minutes before domestic flights, 60 minutes before international flights | Yes |
| Southwest Airlines | 24 hours before scheduled departure | 45 minutes before domestic departures, 60 minutes before international departures | Yes |
| JetBlue Airways | 24 hours before departure | 45-60 minutes before domestic flights, 60 minutes before international flights | Yes |
| Alaska Airlines | 24 hours before departure | 40 minutes before domestic flights, 60 minutes before international flights | Yes |
| Spirit Airlines | 24 hours before departure | 45 minutes before domestic departures, 60 minutes before international departures | Yes |
| Frontier Airlines | 24 hours before departure | 60 minutes before domestic and international flights | Yes |
| Hawaiian Airlines | 24 hours before departure | 45 minutes before North America flights, 30 minutes before Neighbor Island flights, and 60 minutes before international flights | Yes |
| Sun Country Airlines | 24 hours before departure | 45 minutes before domestic flights, 60 minutes before international flights | Yes |
| Allegiant Air | 24 hours before departure | 45 minutes before scheduled flight departure | Yes |
| Breeze Airways | 24 hours before departure | 45 minutes before domestic departures, 60 minutes before international departures | Yes |
| Air Canada | 24 hours before departure | 45 minutes before domestic departures, 60 minutes before international departures | Yes |
| WestJet | 24 hours before departure | 60 minutes before departure for domestic, US, and international flights (except 75 minutes for flights departing Calgary, Edmonton, Toronto, and Vancouver) | Yes |
| Porter Airlines | 24 hours before scheduled departure time | 60 minutes before domestic flights, 75 minutes before US flights from YOW/YUL/YVR, and 90 minutes before US flights from YYZ | Yes |
| Flair Airlines | 24 hours before departure | 2 hours before departure | Yes |
| Volaris | 3, 5, or 7 days before departure for domestic flights (depending on fare), and 24 hours before departure for international flights | 1 hour before departure | Yes |
| Copa Airlines | 24 hours before flight departure | 60 minutes before scheduled departure for most international flights, 2 hours before departure for flights from Venezuela, and 45 minutes before departure for international flights if no bags to check. For domestic flights in Colombia and Panama, 30 minutes before departure at the boarding gate. | Yes |
| Gulf Air | 24 hours before departure | 90 minutes before scheduled departure | Yes |
| Kuwait Airways | 24 hours before departure | 3 hours before departure | Yes |
| Royal Jordanian | 24 hours before departure | 4 hours before departure | Yes |
| British Airways | 24 hours before departure | 45 minutes before short-haul flights and 60 minutes before long-haul flights from London Heathrow and Gatwick; 30 minutes before all flights from London City | Yes |
| Turkish Airlines | 24 hours before departure | 90 minutes before departure for online check-in; airport counters close 45 minutes before domestic and 60 minutes before international flights | Yes |
| Brussels Airlines | 24 hours before departure | 60 minutes before short-haul flights, 70 minutes before long-haul flights | Yes |
| Iberia | 24 hours before departure for flights outside the Schengen Area; from the time of purchase for domestic or Schengen Area flights if seat selection is included or purchased | 1 hour before scheduled departure (90 minutes for Lagos and San José, 180 minutes for Caracas) | Yes |
| Ryanair | 60 days before departure with a reserved seat, or 24 hours before departure with random seat allocation | 60 minutes before scheduled departure (as of Nov 2026) | Yes |
| easyJet | 30 days before departure | 2 hours before departure | Yes |
| Wizz Air | 30 days before departure if a seat is purchased, otherwise 24 hours before departure | 3 hours before departure | Yes |
| Vueling | 24 hours before departure for Fly Light bundle; instantly (up to 365 days) for Fly, Fly Grande, or Fly Pro bundles; 7 days for Vueling Club members. | Up to 50 minutes before departure for Schengen flights, 70 minutes for non-Schengen flights, and up to 4 hours for specific airports. | Yes |
| Pegasus Airlines | 7 days before departure | 60 minutes before departure for both domestic and international flights | Yes |
| Icelandair | 24 hours before departure for all destinations | 60 minutes before departure for international flights (from Keflavik) and 45 minutes for domestic flights | Yes |
| ANA (All Nippon Airways) | 24 hours before departure | 75 minutes before international departure, 20 minutes before domestic departure | Yes |
| Japan Airlines | 24 hours before departure | 1 hour before departure | Yes |
| Thai Airways | 24 hours before departure | 1 hour before departure | Yes |
| Vietnam Airlines | 24 hours before departure | 1 hour before departure for both domestic and international flights | Yes |
| Philippine Airlines | 24 hours before departure | 1 hour and 15 minutes before international flights, 1 hour before domestic flights | Yes |
| China Southern Airlines | 14:00 on the day before departure (some cities can start earlier) | 1 hour before departure for most flights (some domestic airports close 30-45 minutes before departure, international typically 50-60 minutes) | Yes |
| Hainan Airlines | 24 hours before departure | 1 hour before domestic flights, 5 hours before international and regional flights | Yes |
| Air India Express | 14 days before departure | 60 minutes before domestic departures, 2 hours before international departures | Yes |
| AirAsia | 14 days before departure (10 days for flights to/from Australia, Saudi Arabia, Myanmar, and Thailand) | 1 hour before departure for most flights (2 hours for flights from China) | Yes |
| Qantas | 24 hours before departure | 30 minutes before domestic departures, 90 minutes before international departures | Yes |
| Air New Zealand | 24 hours before departure | 30 minutes before domestic New Zealand flights, 90 minutes before international flights | Yes |
| South African Airways | 24 hours before departure | 90 minutes before domestic flights, 2 hours before international flights | Yes |
| Air Transat | 24 hours before departure | 75 minutes before departure for international flights from Canada, US, Europe, and South destinations; 45 minutes before departure for domestic flights within Canada. | Yes |
| Condor | 24 hours before departure | 60 minutes before long-haul flights, 45 minutes before short and medium-haul flights | Yes |
| Virgin Atlantic | 24 hours before departure | 70 minutes before departure for online check-in, 60 minutes before departure at airport desks | Yes |
| Aeroflot | 24 hours before departure | 45 minutes before departure (6 hours and 20 minutes before departure from Dubai, Cairo, Malé, and Colombo) | Yes |
| Bamboo Airways | 24 hours before departure | 1 hour before departure | Yes |
| Zipair | 24 hours prior to departure | 90 minutes before the scheduled time of departure | Yes |
| Swiss International Air Lines | 23 hours before departure | 1 hour before departure for both domestic and international flights | Yes |
| Lion Air | 12 hours before departure for domestic flights, 24 hours before departure for international flights | 45 minutes before departure for domestic flights, 45 minutes before departure for international flights | Yes |
| Batik Air | 12 hours before departure for domestic flights, 24 hours before departure for international flights | 45 minutes before departure for domestic flights, 60 minutes before departure for international flights | Yes |