Flight delay compensation & refund calculators
Check whether EU261, UK261 or the US DOT refund rule covers your delayed, cancelled or overbooked flight, estimate the €250–€600 (or £220–£520) you may be owed, measure the great-circle distance and write a free claim letter — no claims company needed.
Calculators
Flight delay compensation calculator
Check how much compensation you can claim for a delayed, cancelled or overbooked flight under EU261 (€250–€600) or UK261 (£220–£520), using real great-circle distance.
Flight distance calculator (EU261 bands)
Calculate the great-circle distance between two airports in km and miles, and see which EU261 (€250/€400/€600) and UK261 (£220/£350/£520) distance band applies.
Which passenger rights rules apply?
Check whether EU261, UK261 or the US DOT refund rule applies to your flight, based on the departure airport, arrival airport and the airline's licence.
US flight refund checker (DOT rule)
Check if a US airline owes you a cash refund under the DOT rule (14 CFR Part 260): cancellations, 3-hour domestic / 6-hour international changes, and checked bag fee refunds.
Free flight compensation claim letter
Generate a free compensation claim letter for a delayed, cancelled or overbooked flight under EU261 or UK261. Fill in your details, copy the text, send it to the airline.
Popular guides
EU261 Compensation Explained: Who Gets €250, €400 or €600
A complete guide to EU Regulation 261/2004: which flights are covered, the €250/€400/€600 amounts, the 3-hour delay rule, cancellations, denied boarding and the rights to care and refunds.
UK261 After Brexit: Flight Compensation in Pounds
How the UK version of EU261 works: which flights it covers, the £220/£350/£520 amounts, cancellations and delays, overlap with EU261, ADR schemes and the six-year time limit.
Extraordinary Circumstances: When Airlines Can Refuse Compensation
What counts as extraordinary circumstances under EU261 and UK261: weather, air traffic control, strikes, technical problems, bird strikes and knock-on delays — with the key Court of Justice cases.
The US DOT Refund Rule: When Airlines Must Give Your Money Back
How the US Department of Transportation refund rule works: cancellations, significant delays and changes, 3-hour and 6-hour thresholds, 7- and 20-day deadlines, bag fees, vouchers and what it does not cover.
Missed Connections and Long Delays: How EU261 Treats Multi-Leg Trips
How compensation works when a delay makes you miss a connecting flight: single bookings vs separate tickets, delay measured at the final destination, distance rules, non-EU legs and self-transfer risks.
How to Claim Flight Compensation Yourself, Step by Step
A step-by-step guide to claiming flight delay or cancellation compensation from the airline without a claims company: evidence, the claim, escalation to ADR or enforcement bodies, small claims and time limits.
How we work
DelayDue is an independent publisher, not a law firm, airline or claims company. We turn the regulations, official guidance and court judgments into browser tools, cite every source, and keep your inputs on your device.
Frequently asked questions
How much compensation can I get for a delayed flight?
Under EU261, €250, €400 or €600 per passenger depending on distance, if you arrive 3 hours or more late and the cause was not extraordinary. UK261 pays £220, £350 or £520. Long-haul flights arriving 3–4 hours late get half.
Do I need a claims company?
No. You can claim directly from the airline for free. Claims companies handle the process for a share of the payout, which some travellers find worthwhile when an airline refuses.
Do US airlines pay compensation for delays?
US law does not require cash compensation for delays. Under the DOT refund rule, you are entitled to a refund if your flight is cancelled or significantly changed and you choose not to travel.