Flight delay compensation: the complete 2026 guide

Every year millions of travelers are owed money by airlines and never collect it. Sometimes the airline never says a word; sometimes it offers a $15 voucher when the law owes you €600; sometimes a claims agency steps in and pockets a third of what should have been yours. The rules that govern flight delay and cancellation compensation are actually clear — they just aren't taught, and airlines don't advertise them. This guide lays them out exactly as they exist in 2026, with primary-source citations for every number.

What you can claim is determined almost entirely by where you're flying, not which airline. Three regulatory frameworks cover the vast majority of travelers: EU261 for flights in Europe, UK261 for flights in the United Kingdom, and the US DOT consumer protection rules in the United States. A fourth — the Montreal Convention — applies on top of all of them for international flights, mostly for baggage. Together they form the legal floor underneath every commercial ticket sold in the western world.

The three frameworks at a glance

The key idea: EU261 and UK261 pay cash on top of getting you home; US DOT guarantees that you get your money back if you don't go. They are not alternatives — both can apply on the same disruption if the routing crosses jurisdictions.

EU261 — what it pays and when

EU Regulation 261/2004, enforced since 17 February 2005, is the most generous compensation regime in the world. It covers:

• Every flight departing from an EU airport, on any airline (American, Qatar, Air China — all in scope when leaving Frankfurt).
• Every flight arriving at an EU airport on an EU-licensed airline (Lufthansa from JFK, Air France from Tokyo).
• Iceland, Norway, Switzerland and the EEA airports through bilateral extension.

You're entitled to cash compensation when, through the airline's own fault, you reach your final destination three or more hours late, your flight is cancelled at short notice (less than 14 days before departure), or you are denied boarding involuntarily (typically because of overbooking). The amount depends only on the great-circle distance of the flight, and the figures haven't changed since 2004:

One subtlety: under Article 7(2) of the regulation, the airline can halve the compensation (to €125 / €200 / €300) if it rebooks you and the delay is between 2 and 4 hours depending on the distance band. Most airlines don't bother and pay the full amount, but it is the legal ceiling on the discount.

The June 2026 EU air-passenger-rights reform agreement updated rules on hand-luggage charging, pre-booked seating for parents traveling with children, and enforcement consistency — but the €250–€600 amounts and the three-hour threshold remain unchanged. Any source claiming the amounts dropped in 2026 is incorrect; that proposal was made years earlier and was rejected.

EU261 on connecting itineraries

The European Court of Justice has ruled repeatedly (most clearly in Folkerts v. Air France, C-11/11) that compensation applies to the final destination on a single booking. If your Munich–London–New York itinerary is delayed because the first leg was an hour late and you missed your connection, and you arrive in New York 3+ hours late, you can claim — even though only one leg was Europe-internal.

Denied boarding

Overbooking compensation works the same way: same distance bands, same amounts. The airline must first ask for volunteers to give up their seats (Article 4(1)) and must pay agreed compensation to them before involuntarily denying anyone else. The €250–€600 figure is owed in cash, not vouchers — though airlines will offer vouchers and hope you accept.

UK261 — the post-Brexit equivalent

When the UK left the EU, it retained Regulation 261/2004 in domestic law almost word-for-word as the Air Passenger Rights and Air Travel Organisers' Licensing (Amendment) (EU Exit) Regulations 2019 — colloquially "UK261." The substantive rules are identical: 3-hour arrival delay, short-notice cancellation, denied boarding, the same extraordinary-circumstances defence, the same duty-of-care obligations. The two changes are currency and enforcement.

UK261 covers all flights departing UK airports on any airline, and flights arriving in the UK on UK or EU airlines. If the airline rejects a valid claim, you escalate to the UK Civil Aviation Authority rather than an EU national enforcement body — but the CAA's process is free and well-documented.

US DOT — the automatic refund rule

The US has no equivalent to EU261's fixed cash payout for delay. What changed dramatically in 2024 is the refund right. On 26 April 2024 the Department of Transportation published its final rule on "Refunds and Other Consumer Protections" in the Federal Register; the core provisions took effect 28 October 2024 and are codified at 14 CFR Part 259, particularly §259.5.

The rule has three elements travelers should commit to memory:

1. Automatic refunds, not vouchers. When a flight is cancelled or significantly changed and you do not accept the alternative, the airline must refund the original ticket price automatically, to the original form of payment, without the passenger having to ask. The default switched from opt-in vouchers to opt-out cash.
2. "Significant change" is defined. For the first time, the regulation specifies what counts:

   Flight type	Significant-change trigger
   Domestic	3+ hour delay in departure or arrival
   International	6+ hour delay in departure or arrival
   Any	Departure or arrival airport change
   Any	Added connection
   Any	Downgrade in service class
   Any	Change to a different connecting airport or aircraft accessibility

3. Speed and form. Refunds must hit your account within 7 business days for credit-card purchases and 20 calendar days for other payment methods, in cash to the original payment method. Vouchers, travel credits, or "future travel funds" are not allowed unless you affirmatively choose them in writing.

The rule also requires automatic refunds for ancillary services the airline failed to provide: seat-selection fees if your seat was changed, in-flight Wi-Fi that didn't work, paid lounge access on a cancelled segment, and — separately — checked-baggage fees if your bag was lost or "significantly delayed" (defined as 12+ hours domestic / 15–30 hours international depending on flight length).

Beyond refunds, the DOT maintains an Airline Cancellation and Delay Dashboard tracking each US carrier's published commitments on meals, hotels, rebooking, and ground transportation during controllable delays. Those commitments are binding once published. They vary airline-to-airline but are increasingly generous — Alaska, JetBlue, Delta and United all guarantee hotels and meals for overnight controllable delays as of 2026.

Montreal Convention — baggage and beyond

For any international flight (one that starts and ends in different countries, or that has a stop in a different country), the Montreal Convention 1999 sits on top of the regional regime. It governs airline liability for death and injury, baggage, and consequential losses caused by delay. The numbers are denominated in Special Drawing Rights (SDR), an IMF-set basket currency; one SDR is currently about US$1.34.

The most useful Montreal limit for ordinary travelers is the baggage one. Effective 28 December 2024, the ICAO five-yearly inflation review raised the limit on destruction, loss, damage, or delay of checked baggage from 1,288 SDR to 1,519 SDR per passenger (about US$2,000). This is per passenger, not per bag, and it covers both the bag contents and any reasonable replacement purchases made while a bag is delayed.

Other Montreal limits for reference: 5,346 SDR per passenger for unavoidable losses caused by a flight delay (above what EU261/UK261 would already pay); 151,880 SDR for death or injury liability (strict, no fault required); 22 SDR per kilogram for cargo. A bag remains officially "delayed" for 21 days; after that it is legally lost and the full SDR limit applies even without itemized receipts.

"Extraordinary circumstances" — the airline's escape hatch

Under EU261 and UK261, the airline can avoid paying the fixed compensation if it can prove the disruption was caused by "extraordinary circumstances which could not have been avoided even if all reasonable measures had been taken" (Article 5(3)). Two decades of European Court of Justice case law have narrowed what actually qualifies. In practice:

Usually extraordinary (no compensation):

• Severe weather — but only when it shuts the route (volcanic ash, named storms, lightning damage to aircraft)
• Air traffic control strikes (ATC, not airline staff strikes)
• Security risks, terrorism alerts, political instability
• Bird strikes (Pešková v. Travel Service, C-315/15)
• Hidden manufacturer defects communicated by aircraft maker

Usually NOT extraordinary (compensation still owed):

• Technical faults discovered during routine maintenance (Wallentin-Hermann v. Alitalia, C-549/07)
• Component failures the airline could have prevented (van der Lans v. KLM, C-257/14)
• Cabin crew or pilot strikes — airline's own employees (Krüsemann v. TUIfly, C-195/17)
• Late arrival of the inbound aircraft because of an earlier delay
• Routine winter conditions at airports that handle winter routinely
• Insufficient crew, scheduling errors, "operational reasons"

The burden of proof sits on the airline — if it claims extraordinary circumstances, it has to produce the evidence. In reality airlines reject many valid claims with a one-line "due to extraordinary circumstances" form letter. Don't accept that as the final answer; escalate.

Duty of care — meals, hotel, transport

EU261 and UK261 also impose a duty of care that exists separately from the cash compensation and applies even when extraordinary circumstances exempt the airline from paying the €250–€600. While you wait out the disruption you are entitled to:

• Meals and refreshments proportionate to the waiting time (Article 9(1)(a))
• Two free phone calls, emails or faxes (Article 9(2))
• Hotel accommodation if an overnight stay is necessary (Article 9(1)(b))
• Transport between the airport and the hotel (Article 9(1)(c))

If the airline doesn't arrange these directly, you can pay for reasonable equivalents and claim them back later — keep every receipt. There is no fixed cap; the standard is "reasonable." A €60 airport hotel near LHR is reasonable; a €600 Mandarin Oriental suite generally is not.

What's NOT covered

Worth knowing what you cannot claim, so you don't waste effort on hopeless cases:

• Connecting itineraries on separate tickets. If you booked LHR–JFK and JFK–LAX separately, the first airline isn't liable for missing the second. EU261/UK261 follow the through booking.
• Wholly extraordinary disruptions where you got home on time. No delay, no compensation, even if your flight was rebooked under chaos.
• Reduced-mobility assistance failures. Covered under separate regulations (EU Regulation 1107/2006); EU261 doesn't apply.
• Consequential losses outside Montreal limits. Missed cruise, hotel deposit, missed wedding — recoverable in court via the Montreal Convention up to 5,346 SDR per passenger, but not via EU261/UK261's fixed amounts.
• Long-notice schedule changes. EU261 requires the airline to notify of cancellation at least 14 days before departure to avoid compensation. UK261 mirrors this.

How to actually file a claim

The mechanics are simpler than airlines like to imply. Whether you're filing under EU261, UK261, US DOT, or Montreal, the process collapses to the same five steps:

1. Confirm you qualify. Match the cause and the delay length to the regulation that covers your route. The "extraordinary circumstances" question is usually the only ambiguity; check the airline's stated reason against the case-law list above.
2. Calculate the exact amount. Distance × delay × jurisdiction. Get it right so the airline can't lowball you. Our calculator does the math.
3. Gather evidence. Booking reference, boarding pass, the cancellation email, the actual scheduled and arrival times, receipts for expenses, any communication from the airline. Screenshots are fine.
4. Write the claim. Cover letter citing the regulation by article number, the amount owed, your evidence, and a deadline (14 days is standard) for the airline to respond. Send through the airline's published claims channel — not customer service.
5. Escalate if refused. UK: file with the CAA. EU: file with the national enforcement body for the country of departure. US: file with the DOT at transportation.gov/airconsumer. All three are free.

If the airline still refuses after regulator involvement, the next step is small-claims court or, for very large or cross-border claims, full litigation. That's the point at which a claims agency or specialised solicitor genuinely adds value — and at which a no-win-no-fee deal becomes a reasonable trade.

Common gotchas

"We've credited your account" is not a refund. Under US DOT 14 CFR §259.5, you have the explicit right to demand a refund in cash to the original payment method. Vouchers and "future travel funds" are only legal if you affirmatively choose them in writing. If the airline credits travel funds by default, file a DOT complaint.

The 14-day cancellation rule. EU261 and UK261 only owe compensation on cancellations announced less than 14 days before departure. An airline that cancels your seat exactly 14 days out and offers a reasonable rebooking owes nothing.

Code-share confusion. The operating carrier owes the compensation, not the marketing carrier on your ticket. If your ticket says "Delta operated by Virgin Atlantic," Virgin pays.

Voluntary downgrade vs. involuntary. If the airline downgrades you (sells your business-class seat to someone else), Article 10(2) of EU261 owes you 30%, 50% or 75% of the ticket price back depending on flight distance. UK261 mirrors this. US DOT requires automatic refund of the fare difference.

The two-year Montreal limit. Montreal Convention claims must be filed within two years of the disruption — significantly shorter than most EU261/UK261 country deadlines.

"Your delay was three hours and one minute." Airlines occasionally arrive 1–2 minutes inside a threshold and claim no compensation. Under Sturgeon v. Condor (C-402/07) the clock runs to actual arrival at the gate, which courts measure as when the cabin door opens — not landing. If you have a clear screenshot of cabin door open at 11:03 against a scheduled 7:55 arrival, that's three hours and eight minutes, and the airline owes.

Let ClaimBox do it for you

Frequently asked questions

This guide is general information, not legal advice, and rules can change. Always confirm specifics with the airline and the relevant regulator. ClaimBox helps you prepare and send your own claim; it is not a law firm.

Sources

• EUR-Lex — EU Regulation 261/2004, full text
• UK legislation.gov.uk — Article 7 (compensation amounts)
• Your Europe — Air passenger rights
• UK Civil Aviation Authority — Delays
• eCFR — 14 CFR Part 259 (Enhanced Protections for Airline Passengers)
• US DOT — Refunds (automatic refund rule)
• US DOT — Airline Cancellation and Delay Dashboard
• US DOT — What airline passengers need to know about the automatic refund rule
• Federal Register — Refunds and Other Consumer Protections final rule (April 2024)
• IATA — Montreal Convention 1999 (MC99)
• ICAO — Liability limit increase to 1,519 SDR (effective 28 Dec 2024)
• AirHelp — Service fees price list (35% / 15% legal)