Error Fares from the UK: How to Find Them and What Happens Next

• 70–80%

  Share of error fares honoured, per Jack's Flight Club estimate quoted by Which?

• £100–£30,000

  Single-item cash price range for a Section 75 claim

• 66.7%

  Median discount on 232 UK deals in our feed, 17 Oct 2026

• £258

  Cheapest UK–North America return our scanner logged, 19 Sep–17 Oct 2026

Error fares from the UK still turn up. In June 2026, Which? reported examples found by Jack’s Flight Club including London to Los Angeles for £39 and a return from London to Milan for £35. They are rare, they vanish within hours, and the interesting part is not the booking. It is the week after, when you find out whether the airline lets you fly.

This guide covers the UK side of that: what contract law and the Consumer Rights Act 2015 actually say, why a 75% discount in a deal feed is usually just a budget airline sale, and what your card and ATOL can and cannot do if the ticket is cancelled. For the general background on how mistakes get filed, and the US rules, see our explainer on mistake fares.

What counts as an error fare from the UK

The test is intent, not size. A Ryanair seat to Italy for £31 return is cheap, but it is a price Ryanair chose. A long-haul business-class ticket at economy money, or a transatlantic return for less than a train to Edinburgh, is the kind of thing that makes people ask whether a decimal point slipped.

The error fares that make UK headlines tend to be long-haul or premium-cabin tickets, because that is where a mistake is big enough to notice. Short-haul budget airlines sell so many seats so cheaply that a hypothetical error at £20 would rarely look different from a normal sale.

How UK error fares usually happen

You do not need to know how fare filing works to book one, but knowing the common causes helps you judge how likely a cancellation is.

• Currency and point-of-sale slips. A fare filed in one currency and converted at the wrong rate, or a country-specific website showing a price far below the UK site for the same flights. Check which currency you are actually being charged in and whether your card adds a non-sterling transaction fee.
• Missing surcharges or taxes. Long-haul fares from London often carry a large carrier-imposed surcharge on top of the base fare. If that component drops off, the total can fall by hundreds of pounds.
• Wrong cabin or fare class. A business-class seat loaded against an economy price bucket.
• Agency glitches. An online travel agent applies a discount or markup wrongly. In June 2018 British Airways cancelled tickets to Tel Aviv and Dubai that UK agencies had sold at £1 plus taxes, according to The Points Guy, refunding customers and offering a £100 voucher per ticket.

The bigger and more obvious the mistake, and the more it came from a third-party seller rather than the airline’s own site, the less likely it is to survive.

Does an airline have to honour an error fare in the UK?

There is no UK statute that says an airline must honour, or may cancel, a mistaken fare. Jack’s Flight Club’s own help page says some countries require airlines to honour listed fares but the UK is not one of them, and Which? says airlines can legally cancel error fares within a reasonable timeframe. The outcome turns on ordinary contract law and on the seller’s terms.

Two questions do most of the work. First, has a contract been formed? A price on a website is generally treated as an invitation to buy, and many sellers say the contract only exists once they confirm or ticket the booking. Second, did the buyer know, or should they reasonably have known, that the price was a mistake? When BA cancelled the £1 fares in 2018, its spokesperson said that under contract law there was no binding contract. That is BA’s position, not a court ruling, but it is the argument you should expect.

The Consumer Rights Act 2015 matters at the edges. Section 50 treats what a trader says about a service, where you rely on it, as a term of the contract. Section 62 says an unfair term in a consumer contract is not binding on you, judged by whether it causes a significant imbalance against you contrary to good faith. A clause letting a seller cancel any booking for any reason could be challenged under that test; a clause about obvious pricing errors with a full refund is much harder to attack. Neither section gives you a right to fly at a price everyone can see was wrong.

Read the seller's terms, not just the price

British Airways, easyJet and Ryanair each publish general conditions of carriage and separate website terms. These change, and the wording that governs your ticket is the version in force when you booked. Before you rely on a fare, look for three things in the seller’s terms:

• when the contract is formed (payment, confirmation email or ticket issue);
• any clause about errors in prices or availability, and what remedy it offers;
• whether the seller is the airline or an agent acting for you.

That last point matters more than people expect. An agent’s terms sit on top of the airline’s, and the airline can ask the agent to cancel. Jack’s says airlines are more likely to honour bookings made directly than through online travel agents. Our guide to booking direct versus an online travel agency covers the wider trade-offs. Save a PDF or screenshot of the terms page alongside your confirmation.

A deep discount is not the same as an error fare

Most “huge saving” flights you see from the UK are not errors. Blame the Fare’s deal scanner compares each fare with the typical price the provider shows for that route. In the feed on 17 October 2026, the median deal was 66.7% below that typical figure, and 89 of 232 deals were 70% or more below it. Nearly all were short-haul budget-airline fares.

A 79% discount on a Ryanair fare is a very good price and almost certainly intentional. Budget airlines price low in quiet weeks and the “typical” comparison includes much higher peak fares. The long-haul deals look different: the deepest long-haul discount in the feed was Edinburgh to Los Angeles at £316 return, about half the typical price. Good, not a glitch.

Over the longer window, our scanner logged 105 deal observations between UK airports and the US or Canada from 19 September to 17 October 2026. The cheapest was Heathrow to Toronto at £258 return on Icelandair with one stop (five sightings). Nothing in that period came close to the £39 Los Angeles fare Which? described. These are deal observations, not a full price history, so they show what appeared, not what was impossible. If you want a yardstick for a normal good fare, see what counts as a good price for a flight.

How to find error fares from UK airports

Nobody finds error fares by searching on a lunch break. They are found by people and software checking huge numbers of routes, and the window is often a few hours. Realistic options from the UK:

• Curated alert services. Jack’s Flight Club and HolidayPirates are the UK names Which? points to. Error fares are a small fraction of what they send. Our Jack’s Flight Club alternatives guide compares current UK plans.
• Google Flights tracking. Track a route with “Any dates” and Google emails you when that route’s minimum price drops significantly over a month. That catches a mistake only on routes you already follow. Our Google Flights guide walks through setting it up.
• Deal feeds. Our deal feed surfaces fares well below typical prices from 13 UK airports. It will show an unusually cheap fare if the scanner catches it, but it does not label anything an error fare, and most of what it shows are sales.

Your departure airport changes the odds. Every UK example in the June 2026 Which? report except Edinburgh to Istanbul started in London, and long-haul errors need long-haul routes to land on. If you can get to London cheaply, follow Heathrow as well as your local airport. Scottish travellers should watch Edinburgh and Glasgow; in the Midlands, Birmingham. The UK flights hub lists the rest.

Booking one: the order that matters

1. Check dates and names first. You will probably have ten minutes, not an hour. Have passport names and annual leave in mind before the alert arrives.
2. Book on the airline’s own site if the fare is there. Use an agent only if the airline does not show it.
3. Pay by credit card in sterling where possible. It gives you a Section 75 route if a refund is owed and the price is over £100, and avoids foreign transaction fees.
4. Screenshot the price, the fare rules and the terms page.
5. Do not ring the airline to ask whether the price is right. Which? gives the same advice: telling the airline first is the fastest way to get it corrected.

What to do and not do after booking

The confirmation email is not the finish line. A booking reference can exist before an e-ticket number is issued. Look in “Manage my booking” for a 13-digit ticket number, and check the booking shows up correctly over the following days.

Hold off on anything you cannot cancel. Which? suggests waiting at least a week before booking non-refundable parts of the trip and choosing accommodation with free cancellation. Jack’s gives the same advice. That is the expensive mistake: the airline refunds the flight, and you are left with a non-refundable apartment in Tokyo.

Do not book several speculative tickets in made-up names, and do not change the booking early. A paid name change or date change can reprice the ticket or draw attention to it. If you genuinely need to fix a spelling, check our name correction guide and wait until the ticket has been stable for a while.

If it is cancelled: refunds, Section 75, chargeback and ATOL

If the airline or agent cancels, you should get your money back. Jack’s says that if a ticket is cancelled you get a full refund, and the airline cannot charge you more than you originally paid. Ask for the refund in writing, keep the email trail, and note the date the cancellation arrived.

Your card only comes into it if the refund does not arrive. Section 75 of the Consumer Credit Act 1974 makes a credit card provider jointly liable for a breach by the supplier where the single item cost more than £100 and not more than £30,000. Citizens Advice notes you usually cannot use Section 75 if you did not buy directly from the trader, which is another reason to book with the airline. Chargeback is the route for debit cards and for credit card purchases outside Section 75, and your bank can decline it. Neither will force an airline to honour a fare it has lawfully cancelled.

ATOL is usually irrelevant. The ATOL scheme says that if you buy a flight from an airline or travel company and receive a valid e-ticket, ATOL does not cover that flight. It protects packages that include a flight, and some flight-only bookings that come with an ATOL Certificate, when the travel company fails. An airline correcting its own price is not a failure. Which? does say you have more rights where an error fare is part of a package, so read the package terms if that is how you booked.

Where Blame the Fare fits

Blame the Fare does not hunt specifically for error fares and does not sell tickets. Anyone can preview up to five current deals on the deal feed; members of The Departures Club see the full feed and can set exact-trip Watches with a maximum return fare, checked hourly. If an error fare drops below your limit on a route you are watching, that is when you will hear about it.

Membership is priced in US dollars: $9 per month or $79 per year. See current prices and terms. If you mainly want curated long-haul error fares, a dedicated newsletter may suit you better; if you have a fixed trip in mind, a Watch is the more precise tool.