If you miss a flight from London through your own lateness, the airline owes you nothing: no compensation, no free seat on the next flight and no hotel. Go to the airline's own sales or ticket desk in the check-in hall rather than the gate, ask what a new seat costs, and if your return flight is on the same booking, tell the airline before the first flight leaves so it does not cancel the return as well.
The passenger rights most travellers have heard of, the compensation for delays and cancellations, only apply when the airline is the one that failed. That situation has its own page, what to do if your flight is cancelled at Heathrow. This page is about the other case: the flight left on time and you were not on it.
The usual causes are ordinary ones. A slow Tube, a long security queue, the wrong terminal, a bag drop that closed five minutes before you reached it. If the reason was a train that never came, our page on a cancelled airport train deals with the railway; what follows is the airline's side, which is the same whatever made you late.
Missed flight: the short version
- Compensation
- None. UK passenger rights cover the airline's failures, not yours
- Free rebooking
- Not owed. Some airlines help voluntarily; most charge
- Where to go
- The airline's ticket or sales desk in the check-in hall, or its app or phone line
- Return on the same booking
- May be cancelled automatically if you do not show for the outbound. Call before departure
- Taxes on the unused ticket
- Air Passenger Duty is only due if you fly; ask the airline for it back
- Late because of a train
- A matter for the train company and your travel insurance, not the airline
Why passenger rights do not cover a missed flight
The UK's air passenger rules, still widely called UK261, give you care, refunds and sometimes cash when a flight is cancelled, delayed for hours or overbooked. Each of those is something the airline did. Missing a flight that departed normally is something that happened to you, and the regulation has nothing to say about it.
The Civil Aviation Authority is blunt on the one case where travellers most often feel wronged: a long security queue, even when you reached the airport in good time. Its guidance says an airline in that position is not likely to pay you anything, nor to regard a free seat on a later flight as something it owes. It adds that some airlines do find passengers a new flight voluntarily, and advises asking the airline or your agent about one while warning that it may cost extra.
The airport is not liable either. It runs the security lanes, but your contract is with the airline, and nothing in that contract makes the airport responsible for getting you to the gate.
The first half hour: the ticket desk, not the gate
Once the gate has closed, the people standing at it can do almost nothing. They will not reopen the door, and they usually cannot sell you a new ticket. Your boarding pass is now worthless for that flight. Turn round and go back landside, to the check-in hall.
Most full-service airlines at Heathrow and Gatwick have a ticket or sales desk near their check-in zone, and that is where a missed passenger is rebooked or sold a new seat. Low-cost airlines often have no desk of their own: the counter is run by a handling company on their behalf, and the quickest route to a new booking is frequently the airline's app or website, used from a seat in the terminal. Our Heathrow terminals guide shows which airline flies from which building, which matters if you went to the wrong one.
Do three things before you talk to anyone. Find out when the airline's next flight to your destination leaves. Check whether you have a hold bag on the missed flight, because a bag that was checked in and then left behind will be offloaded and you will need to ask where it is. And look at your booking to see whether a return flight sits on the same reference, because that decides how urgent the next step is.
The "flat tyre rule", and why you cannot count on it
Frequent travellers talk about a "flat tyre rule": the idea that an airline will move a passenger who arrives shortly after departure onto the next flight for little or nothing. Some full-service airlines have quietly done this at an agent's discretion for years. It is an informal practice, not a published right, and we know of no London airline that sets it out as a promise in its conditions of carriage.
So treat it as a question, not a claim. Arriving at the desk within an hour or two of departure, calm and with your booking reference ready, gives the agent room to help. Arriving the next day, or insisting that a rule exists, does not. If the agent offers standby for a later flight, take it; if the agent quotes a fare, that is the airline's answer.
The no-show clause that can cancel your return flight
This is the expensive part, and it catches people who think the missed flight is the whole loss. Many full-service airlines' conditions of carriage say a ticket must be used in the order the flights were booked. If you do not turn up for the first flight, the airline may treat you as a "no-show" and cancel every later flight on the same ticket, including the return.
When the consumer group Which? surveyed airlines in December 2023, British Airways, Virgin Atlantic and Emirates said they would cancel the return if no advance notice was given, while easyJet, Jet2, Ryanair and TUI treat each direction as a separate ticket and leave the return alone. KLM kept the return but could charge a fee to use it. Policies change, so read the conditions of your own airline, but the pattern holds: a cheap airline sells two one-way flights, a full-service airline usually sells one ticket.
Ring the airline before the missed flight leaves, not after. If you know you will not make the outbound, telling the airline while the flight is still open is what gives it the discretion to keep your return. Once the aircraft has gone and you are marked as a no-show, the return may already be cancelled, and putting it back can cost more than a new ticket.
If you booked through a travel agent or an online agency, the airline will often send you back to them, because they hold the ticket. Call both, and write down the time, the name of the person and what they told you.
What a new seat costs, and where to look for one
There is no standard price. A full-service airline rebooking a flexible fare may charge a change fee plus the difference in fare; a passenger on its cheapest fare may be told the ticket has no value left at all. A low-cost airline will usually sell you a seat on the next flight at whatever that seat costs today, which on a busy route on the same afternoon can be several times what you first paid.
Before you accept the first quote, spend five minutes on your phone. London has six airports, and an evening flight from another one may be cheaper than the next departure from the one you are standing in. Our comparison of London's airports shows who flies from where, and getting between London's airports gives the real transfer times, which on a coach can run past an hour. A new booking on a different airline also avoids the no-show problem, as long as your return is on a separate ticket.
If the next sensible flight is tomorrow morning, sleeping beside the terminal costs less than a late taxi back into town. Staying overnight at a London airport compares the options at each one, and late-night airport transport explains what still runs after midnight if you would rather go back to your hotel.
Getting the taxes back on the ticket you did not use
Part of every fare is tax, and the largest UK tax on a ticket, Air Passenger Duty, is charged per passenger who actually departs. If you did not fly, the airline did not have to pay it. Most airlines will return it on request, sometimes with other unused airport charges, although some deduct an administration fee that can swallow most of a short-haul refund. There is no single legal rule forcing the refund, so the airline's own policy decides how it works.
The duty depends on how far you were flying and in which cabin. HM Revenue and Customs publishes the rates; the ones below are those in force for flights from most UK airports, including all of London's.
| Destination band | Examples | Economy (reduced rate) | Other cabins (standard rate) |
|---|---|---|---|
| Domestic | Edinburgh, Belfast | £8 | £16 |
| Band A (up to 2,000 miles) | EU, Switzerland, Turkey, Morocco | £15 | £32 |
| Band B (2,001 to 5,500 miles) | United States, Gulf, India | £102 | £244 |
| Band C (over 5,500 miles) | Australia, much of Asia and South America | £106 | £253 |
Those rates have applied since 1 April 2026. HMRC has already published the rates from 1 April 2027 (checked November 2026): £15.49 for economy in band A and £105.33 in band B, with the other bands rising by similar small amounts. For a family of four who missed a flight to New York in economy, the duty alone is £408, which is worth a form even after a fee. For one person who missed a flight to Paris, it is £15, and an airline fee may leave nothing. Claim through the airline's refund form, or through the agent if you booked with one.
When it was not quite your fault
Three situations look like a missed flight but are handled differently, and it pays to know which one you are in.
A late connection on one booking. If your first flight was delayed and you missed the second flight on the same booking, that is not a missed flight in the sense of this page. The Civil Aviation Authority says the airline must then look after you, including a hotel if you wait overnight, and compensation can be due if you reach your final destination more than three hours late. Separate tickets bought from different airlines get none of this.
A cancelled or late train. The airline still owes you nothing. The train company may owe you a refund or Delay Repay on the rail ticket, and our page on TfL's delay refunds covers the Tube and the Elizabeth line. The cost of the new flight is a question for your travel insurance.
A strike or a closed road. Again, the airline is not responsible for how you reach the airport. Whether insurance pays depends on the wording: some policies name strikes, road accidents and failed trains or buses as covered reasons for reaching the airport late, others exclude a strike that had already been announced, and most expect you to have allowed a sensible amount of time. Our guide to travel insurance for a UK trip explains what to look for, and the claim will need receipts and a screenshot of the disruption.
How not to be the person at the desk
Almost every missed flight we hear about comes down to one of two numbers: the time the bag drop closes and the time the gate closes. Both are earlier than departure, both are set by the airline, and both are printed in the booking confirmation. A passenger who arrives at Heathrow forty minutes before a long-haul departure has usually missed it already.
Work backwards from the bag-drop deadline, not the departure time, and add a margin for the journey. Planning your departure day does the arithmetic, and the security and liquid rules at British airports explains what slows the queue. If someone is driving you, the terminal forecourt now costs money at every London airport, and our page on drop-off charges explains how to pay before the deadline passes.
Frequently asked questions
Do I get compensation if I miss my flight?
No. Compensation under UK passenger rules is for cancellations, long delays and denied boarding caused by the airline. If the flight left on time and you were not on it, the airline owes you nothing, even if a security queue made you late. Your travel insurance may cover some costs.
Will the airline put me on the next flight for free?
It is not obliged to. The Civil Aviation Authority says some airlines help voluntarily but that you may need to pay extra. Ask at the airline's ticket desk as soon as possible after the gate closes; the sooner you arrive, the more room the agent has to help.
If I miss my outbound flight, is my return flight cancelled?
It can be. Many full-service airlines cancel every later flight on the ticket if you do not show up for the first one without telling them. Low-cost airlines usually sell each direction separately. Call the airline before the outbound departs and ask it to keep the return.
Can I get a refund for a flight I missed?
The fare itself is usually lost on a non-refundable ticket, but the taxes are a different matter. Air Passenger Duty is only due when a passenger flies, so most airlines will refund it on request, sometimes minus an administration fee. On a long-haul economy flight the duty is over £100 per person.
What if I missed my flight because my train was cancelled?
The airline treats it the same as any other late arrival. The rail ticket is a claim against the train company. The new flight is a question for your insurer, if the policy lists a failed train as a reason it will pay for, so keep the receipts and photograph the departure board before you leave the station.
Sources
- Civil Aviation Authority - Missed flights (checked November 2026)
- Civil Aviation Authority - Delays (connecting flight bookings) (checked November 2026)
- HM Revenue and Customs - Rates for Air Passenger Duty (checked November 2026)
- Which? - How missing a flight can cost you thousands (December 2023) (checked November 2026)