Check-in and bag-drop deadlines at Heathrow vary by airline, not by terminal. British Airways closes bag drop 45 minutes before short-haul departures and 60 minutes before long-haul; Virgin Atlantic closes check-in 70 minutes before departure; Emirates requires online check-in or passport control by 90 minutes before. There's no single Heathrow-wide rule, so always confirm your own airline's deadline rather than assuming the one that applied to your last flight. Checked 2026.
Why Heathrow doesn't set one check-in deadline
Heathrow doesn't run check-in itself: every desk and bag-drop point in every terminal is staffed and operated by the airline or its ground handler, which is why the cut-off depends on which airline you're flying rather than which terminal you're in. Heathrow's own general advice is to arrive three hours before an international departure and two hours before a domestic or European one, but that's a recommended arrival time, not the actual check-in closing time, and it sits well before most airlines' real deadlines.
Check-in deadlines by airline
| Airline | Online check-in | Airport check-in / bag drop closes | Boarding gate |
|---|---|---|---|
| British Airways | From 24 hrs before | 45 min before short-haul; 60 min before long-haul | 20 min before |
| Virgin Atlantic | 24 hrs to 70 min before | 70 min before | 30 min before |
| Emirates | 48 hrs to 90 min before | By 90 min before (passport control) | 60 min before (Economy/Premium Economy); 45 min (Business/First) |
| American Airlines | 24 hrs to 90 min before (international) | 60 min before (international, standard rule) | Check with your specific flight |
These are each carrier's own published, standard deadlines for flights it operates itself. A codeshare or connecting itinerary normally uses the operating airline's deadline rather than the one marketing the ticket, so check your boarding pass or booking confirmation if your flight is sold by one airline but flown by another.
British Airways
As Heathrow's largest operator, flying from both Terminal 3 and Terminal 5, British Airways closes bag drop and check-in 60 minutes before long-haul departures and 45 minutes before short-haul ones. After that, you need to clear security at least 35 minutes before departure and be at the gate 20 minutes before. The fastest route through the airport is online check-in from 24 hours out: with only hand luggage and a mobile boarding pass, you can go straight to security. Overnight Bag Drop is available at Terminal 3 and Terminal 5 for early-morning BA departures, so dropping a bag the evening before is realistic if your flight leaves before mid-morning.
Virgin Atlantic
Virgin Atlantic flies exclusively from Terminal 3 at Heathrow, with no dedicated check-in area, so check the terminal's information screens for your desk location. Its Conditions of Carriage set a check-in deadline of 70 minutes before scheduled departure, covering both online check-in and the airport counter or bag drop. Self-service kiosks in Zone A are open from 05:00 to 21:30. You need to be at the boarding gate at least 30 minutes before departure.
Emirates
Emirates operates from Terminal 3 at Heathrow. Online check-in opens 48 hours before departure and closes 90 minutes before, and the same 90-minute cut-off applies to clearing passport control if you haven't already checked in online. Boarding closes 60 minutes before departure in Economy and Premium Economy, and 45 minutes before in Business and First.
American Airlines and codeshare flights
American Airlines' standard international rule, which applies at most airports including Heathrow, is check-in and bag drop by 60 minutes before departure, with online check-in available up to 90 minutes before for international flights. A short list of specific airports carries an earlier cut-off on American's own published table; if you're unsure, check American's check-in page for your exact route before you travel. If you're flying a codeshare, such as an American-marketed flight actually operated by British Airways, the operating airline's deadline applies, so check which airline is actually flying the route on your booking confirmation.
What happens if you miss the deadline
Across all airlines, missing the check-in or bag-drop deadline risks the same outcome: the airline can refuse to board you, release your seat to another passenger, or cancel your booking, typically without a refund for the unused flight. None of the deadlines above include security, so build in extra time beyond the check-in cut-off itself, particularly at peak times or with a bag to drop.
Tips to avoid missing check-in at Heathrow
- Check in online as soon as the window opens. Most airlines open online check-in 24 hours before departure (Emirates 48 hours), and if you're travelling with hand luggage only, a mobile boarding pass lets you skip the check-in desk and go straight to security.
- Don't rely on your last flight's deadline. Even with the same airline, long-haul and short-haul routes can have different cut-offs, as British Airways' 45/60-minute split shows.
- Add buffer for the bag-drop queue, not just the deadline itself. The published cut-off is when the desk closes, not when you should arrive, so get there well ahead, especially at busy times of day.
- Check your actual operating airline on a codeshare ticket, since the deadline that applies is the operating carrier's, not the one that sold you the ticket.
FAQs
What time does check-in close at Heathrow?
It depends entirely on your airline. British Airways closes bag drop 45 minutes before short-haul flights and 60 minutes before long-haul; Virgin Atlantic closes 70 minutes before; Emirates requires online check-in or passport control by 90 minutes before. There's no single Heathrow-wide cut-off.
How early should I arrive at Heathrow?
Heathrow's own general guidance is three hours before an international flight and two hours before a domestic or European one. That's an arrival-time recommendation, not your airline's actual check-in deadline, which is usually tighter, so check both.
Is online check-in available at Heathrow?
Yes, for most airlines. It typically opens 24 hours before departure (48 hours for Emirates) and closes somewhere between 60 and 90 minutes before departure depending on the airline, letting you skip the check-in desk if you're only carrying hand luggage.
What happens if I miss my airline's check-in deadline?
The airline can refuse to board you, release your seat, or cancel your booking, usually with no refund for the unused flight. The deadlines above are hard cut-offs, not guidelines.
Does the check-in deadline depend on my terminal?
No. Heathrow's terminals don't set check-in rules; each airline does, and it applies wherever that airline is based, whether that's Terminal 3, Terminal 4 or Terminal 5.
Is the check-in deadline the same for connecting or codeshare flights?
Usually not the marketing airline's deadline. The operating airline's published cut-off applies, so check which airline is actually flying your route on your booking confirmation or boarding pass.
More: Checking in at Heathrow, Heathrow taxis, Public transport, Special assistance at Heathrow.