Flight delayed or canceled in 2026: how to claim a refund (EU261 and US DOT)

The average international traveler loses 2-4 flights per year. In 5% of cases, the flight is delayed 3h+ or canceled. Almost nobody files for a refund because they think it's complicated — and the airline counts on that. In 2026 three jurisdictions apply:

• EU261 (Europe): the most generous, pays €250-600 per passenger even on cheap flights
• US DOT (United States): forces automatic refund since 2024, but no fixed compensation
• Montreal Convention (international baggage): up to ~USD 1,700 per passenger

This article covers all three and explains when a lawyer or platform is worth it vs. going it alone.

▶ Shortcut: if you already know your flight qualifies, go straight to voyspark.com/en/search/flight-refund — free 2-min check via AirHelp (Voyspark partner).

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EU261: the most generous rule in the world

TL;DREU261 (Regulation EC 261/2004) is the gold standard of passenger rights. Covers flights departing from EU/EEA/UK/Switzerland + flights arriving in the EU on a European carrier. Fixed compensation: €250 (<1,500km), €400 (1,500-3,500km), €600 (>3,500km). 3h+ arrival delay qualifies. <14 days' cancellation qualifies. Not based on insurance or miles — statutory right.

EU261 was enacted in 2004 and is the most aggressive passenger-rights rule in the world. It applies when:

1. Flight DEPARTS from any airport: within the EU (27 countries), EEA (Norway, Iceland, Liechtenstein), Switzerland, UK (post-Brexit, UK261 mirrors EU261).

2. Flight ARRIVES in the EU on an EU carrier: New York-Paris on Air France is covered. New York-Paris on Delta is NOT (US carrier).

Distance	Compensation	Examples
<1,500 km	€250	Madrid-Lisbon, Berlin-Rome
1,500-3,500 km or intra-EU	€400	Lisbon-Paris, Madrid-Athens
>3,500 km (non-EU)	€600	London-New York, Paris-Tokyo

Qualifying events:

• 3h+ arrival delay (Sturgeon vs Condor 2009 ruling — a 3h+ delay counts as cancellation)
• Cancellation with <14 days' notice (without reasonable rebooking option)
• Denied boarding due to overbooking (the airline chose to bump you)

Events that do NOT qualify ("extraordinary circumstances"):

• Severe weather (storm, snow)
• Air traffic controller strike (not airline staff)
• Terrorist attack, security alert
• Volcanic eruption (Eyjafjallajökull 2010 created case law)

Airline's own crew strike: NOT extraordinary since the TUIfly 2018 ruling (EU Court of Justice). Lufthansa, Ryanair, Iberia have lost hundreds of cases. External union strike may qualify, depending on context.

How to file EU261 alone:

1. Gather evidence: boarding pass, e-ticket, actual arrival time (FlightAware), photo of "delayed" board, airline email/SMS
2. Identify the operating carrier: if Lufthansa operated an Air Canada codeshare flight, file against Lufthansa (operating carrier, not vendor)
3. Airline's official site has an EU261 form: Lufthansa (Lufthansa Service Center), Iberia (Iberia Reclamaciones), TAP (TAP Customer Relations), Ryanair (Care Form). Fill it out, attach evidence, submit
4. Airline response deadline: 6 weeks (EC recommendation). Usually responds in 2-12 weeks
5. If airline denies or ignores: escalate to the NEB (National Enforcement Body) of the flight's country of origin. NEB Germany = LBA. NEB Spain = AESA. NEB UK = CAA. NEB Portugal = ANAC
6. Last resort: small claims court in the country of origin. Or a third-party platform.

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US DOT: the 2024 change

TL;DRUS DOT implemented in October 2024 the automatic cash refund rule: a canceled or "significantly changed" flight (3h+ domestic or 6h+ international) obliges cash refund within 7 business days (credit card) or 20 days (cash). No fixed EU261-style compensation. 3h+ delay forces refund of extras (seat, checked bag). Applies to flights departing or arriving at a US airport.

The US rule changed in 2024. Before, the airline could offer a voucher and the passenger fought to get cash. Now DOT requires automatic cash refunds under 4 conditions:

1. Canceled flight: 100% refund within 7 business days (credit card) or 20 days (cash). No need to ask — airline is required to offer the refund automatically.

2. "Significantly changed" flight:

• 3h+ domestic delay
• 6h+ international delay
• Airport change (LGA to JFK)
• Increased number of stops (nonstop becomes connection)
• Aircraft change affecting accessibility

3. Baggage delayed 12h+ (domestic) or 15-30h+ (international, depends on segment): refund of baggage fee.

4. Wi-Fi/in-flight entertainment didn't work: if you paid extra, refund mandatory.

No fixed EU261-style compensation. No €250-600. Just refund of what was paid.

How to file DOT:

1. Airline is already required to offer automatic refund — refuse voucher if airline tries to push one
2. If airline doesn't offer: file at transportation.gov/airconsumer (DOT investigates 30 days)
3. Last resort: small claims court in the state of the airport

NY-Europe flight: which rule applies?

TL;DRA US-Europe flight has dual coverage. Departing from a US airport on a US carrier (Delta, United, American): DOT applies. Departing from a US airport on a European carrier (Air France, Lufthansa, BA): DOT applies AND EU261 applies on the return leg. Passenger can use the most favorable rule. Trick: file under both.

The classic question: JFK-CDG on Air France delayed 5h. Which rule applies?

Answer: both. DOT applies because it departed a US airport. EU261 applies because it arrived in the EU on an EU carrier. You can choose whichever is more favorable.

Optimal strategy:

1. File for EU261 first (€600 fixed beats DOT refund of extras only)
2. If airline denies EU261: file DOT (forces refund of any extras paid)
3. You don't get both — pick one

Airlines most reluctant to pay EU261 to US travelers:

• Air France: pays after 2-3 follow-ups, usually 12-16 weeks
• KLM: slow but pays, 14-20 weeks
• Lufthansa: reasonable cooperation, 10-14 weeks
• British Airways: faster, 8-12 weeks

Delta JFK-MAD delayed 4h: EU261 does NOT apply (US carrier). Only DOT — refund of canceled flight or significant change.

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Platforms: AirHelp, ClaimCompass, RightCharter — worth it?

TL;DRAirHelp, ClaimCompass, RightCharter charge 25-50% of recovered amount to file EU261/DOT for you. Worth it when: European airline ignores you, you don't speak the language, you don't have time. Not worth it when: airline is already paying quickly, US domestic flight (DOT enforces free), small amount (<€250).

Fees (2026 rates):

Platform	Fee	When it's worth
AirHelp	35% + €25 admin if it goes to court	EU261 + European airline ignores
ClaimCompass	25%	Standard EU261, cheaper than AirHelp
RightCharter	35-50% (varies)	EU261 + complex cases
Flightright	27-33%	German specialist, great vs Lufthansa

Worth it if:

• European airline ignores your EU261 request 6+ weeks
• You don't speak English, German, Spanish to argue
• High value (€400+ × family of 4 = €1,600 and 30% = €480 still pays)
• You don't have time to track the process (3-12 months)

Not worth it if:

• US domestic flight (DOT enforces, free at transportation.gov)
• Airline is already paying quickly (Lufthansa, BA usually pay in 8 weeks if you push)
• Small amount (<€250) — 35% of €250 = €87, worth spending 1h filling a form

Optimal strategy:

1. Try alone first (airline form, 6 weeks)
2. If ignored, escalate to NEB (additional 4-8 weeks)
3. If nothing happens in 3-4 months, hire a platform (they process in 6-12 additional months)

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Lost baggage: separate rules

TL;DRLost baggage has its own rules (Montreal Convention 1999, ratified by US, EU, and 130+ countries). Airline pays up to 1,288 SDR (~USD 1,700, €1,500) per passenger regardless of actual bag value. Bag delayed 12h+: airline pays for clothing and essentials. Bag lost 21 days: declared permanently lost, pays up to 1,288 SDR. Always file a PIR (Property Irregularity Report) at the airline counter BEFORE leaving the airport.

Montreal Convention 1999 governs international air transport. Airline liability limits:

• Lost or destroyed baggage: 1,288 SDR (~USD 1,700, €1,500) per passenger
• Delayed baggage: same limit, paid based on documented expense
• Flight delay: 5,346 SDR (~USD 7,100) per passenger

What to do if your bag doesn't arrive:

1. DO NOT leave the airport without filing a PIR at the airline counter. No PIR, no right to claim.
2. Note the PIR code (claim reference)
3. Buy essentials (clothing, toothbrush, charger) and keep ALL receipts
4. Airline usually delivers within 24-72h. After 21 days, officially lost
5. Filing deadline: 2 years for international baggage

Items prohibited in checked bag (jewelry, electronics, cash): if you put them in checked bag and it's lost, airline can deny those items (Montreal Convention Art. 22). Always carry-on.

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Step-by-step: real-world scenario

TL;DRCommon scenario — JFK-LHR on British Airways delayed 4h. Passenger has right to: EU261 €600 (>3,500km, EU-bound on EU carrier), refund of extras, hotel if overnight forced. Plan: boarding pass + board photo + airline email → BA EU261 form in 48h → if ignored 6 weeks, escalate UK CAA.

Real case May 2026: BA112 JFK-LHR delayed 4h12min. American couple.

Step 1 — At airport:

• Photo of board (4h12min delay, reason: "operational")
• Collect meal voucher from BA (EU261 mandate)
• Confirm real arrival time via FlightAware (BA112 arrived 14:45 instead of 10:30)

Step 2 — 48h later (home):

• Access britishairways.com/en-us/information/help-and-contacts/eu261
• Fills out: name, flight number BA112, date, booking reference, bank details
• Attaches: boarding passes for 2 + e-ticket + board photo + BA email
• Claim: €600 × 2 passengers = €1,200

Step 3 — 6 weeks later:

• BA responds approving in 4-12 weeks. Payment to account in another 2 weeks
• If BA denies or ignores: escalate to UK CAA (caa.co.uk), free form. CAA investigates in 60-90 days

Step 4 — 6 months no response:

• Hire platform (AirHelp 35% or ClaimCompass 25%)
• Or file in UK small claims court (Money Claim Online)

Typical outcome: €1,200 received in 3-6 months without a lawyer.

Practical appendix

Documents to ALWAYS keep:

• Boarding pass (physical + photo)
• E-ticket / PDF itinerary
• Airline email/SMS about delay or cancellation
• Photo of airport board showing delay
• Actual arrival time via FlightAware or FlightRadar24
• Hotel, meal, transport receipts (if overnight forced)

Essential sites:

• transportation.gov/airconsumer — US DOT
• ec.europa.eu/transport/passengers/air_en — EU261 official
• airhelp.com / claimcompass.eu / flightright.de — platforms
• flightradar24.com / flightaware.com — confirm real arrival time

Main European NEBs:

• UK: CAA (caa.co.uk)
• Germany: LBA (lba.de)
• France: DGAC (ecologie.gouv.fr/passagers-transport-aerien)
• Spain: AESA (sede.seguridadaerea.gob.es)
• Portugal: ANAC (anac.pt)