Most delayed U.S. flights do not create a legal right to a fixed cash payment. The answer depends on what happened and what you are seeking: a refund for unused travel, reimbursement of a documented expense, or statutory compensation under a European passenger-rights regime.

The route, operating airline, cancellation or delay status, replacement travel you accepted, and proof of your loss usually matter more than your nationality.

Identify the remedy before you file

Three remedies are often confused:

• Refund: repayment for unused transportation after a qualifying cancellation or significant change.
• Expense reimbursement: repayment of reasonable costs under an airline policy, travel-insurance policy, credit-card benefit, or international treaty.
• Statutory compensation: a fixed payment available on some EU and UK routes when legal conditions are met.

U.S. flight delay rights

Ordinary delays usually do not produce federal compensation

The United States has no general federal schedule that pays passengers a set amount for a two-, three-, or four-hour delay. If you completed the trip, federal law generally does not require the airline to pay cash simply because you arrived late.

An airline may still offer rebooking, meal vouchers, hotel accommodation, or other help. Those benefits usually come from the carrier's customer-service commitments and may depend on the cause of the disruption. Check the airline's current policy rather than relying on a generic claim calculator.

Travel insurance and credit-card benefits may cover a qualifying trip delay, missed connection, meals, or accommodation. The policy or benefit terms control the claim, including the minimum delay, exclusions, covered expenses, and receipt requirements.

When a U.S. refund may apply

A refund is different from delay compensation. If an airline cancels your flight or makes a significant change and you do not accept the replacement transportation, you can generally request a refund under DOT rules. Ask for payment to the original form of payment and keep proof that you declined the alternative.

If you take the delayed flight or accept replacement transportation and complete the trip, do not normally describe the request as a full airfare refund. Ask instead for a promised airline benefit, reimbursement of covered expenses, or an insurance payment.

Separate these questions in your complaint:

1. Was the flight canceled or significantly changed?
2. Did you accept the airline's replacement transportation?
3. What expenses did you pay personally?
4. Does the airline's policy cover the cause of the delay?
5. What amount are you requesting, and what document supports it?

EU261 flight delay compensation

EU Regulation 261/2004 can apply to a U.S. traveler's itinerary when:

• the flight departs from an airport in the EU; or
• the flight arrives in the EU from outside the EU and is operated by an EU airline.

For example, a Paris-to-New York flight will generally fall within EU261 because it leaves the EU. A New York-to-Paris flight on a U.S. airline generally will not, while the same route operated by an EU airline may qualify.

The official EU Regulation 261/2004 text and Your Europe passenger-rights guidance provide the controlling framework.

Compensation is based on arrival delay

For a covered delay, compensation may be available when you reach your final destination at least three hours late and the delay was not caused by an extraordinary circumstance. The three-hour test is based on arrival, not simply on how late the aircraft left.

The reduced amount can apply when the airline reroutes you and you reach your destination within the applicable time limit. Compensation is generally calculated per eligible passenger.

If connecting flights were issued on one booking, use the delay at the final destination. Separate tickets can produce a different analysis because each ticket may be treated as its own journey.

Care is separate from compensation

EU261 also requires assistance during a qualifying departure delay. The threshold depends on distance:

Assistance can include reasonable meals and refreshments, communication, and hotel accommodation with transportation when an overnight stay is necessary. If the airline does not provide the required assistance, buy only reasonable necessities and keep itemized receipts.

If departure is delayed by at least five hours, you can generally choose not to travel and request reimbursement of the ticket under EU261. That option is separate from claiming fixed compensation after completing the journey.

What counts as an extraordinary circumstance?

Weather that makes flying unsafe, air-traffic-control restrictions, airport closures, security risks, and some strikes outside the airline's control may prevent a fixed EU261 payment. The airline should identify the event and explain how it caused the delay.

A vague statement such as "operational reasons" does not give you enough information to evaluate the denial. Routine technical problems and failures connected with normal aircraft maintenance generally are not treated as extraordinary under the Your Europe passenger-rights FAQ. The exact event and the airline's evidence still matter.

An extraordinary circumstance may remove fixed compensation, but it does not necessarily remove every right to care, rerouting, or reimbursement.

UK261 and other international claims

UK261 is a separate regime for qualifying flights involving the United Kingdom. It broadly resembles EU261 but has its own scope, currency, and enforcement routes. Check the itinerary and operating carrier before using an EU claim form. Citizens Advice guidance on delayed and canceled flights is a useful starting point for UK passengers.

The Montreal Convention may help when an international delay causes actual, documented financial damage. It is not usually a flat payment for inconvenience. Save proof of the loss, show how the delay caused it, and check the treaty's liability limits and deadlines. If EU261 or UK261 also applies, do not claim the same expense twice under different rules.

How to dispute a flight delay

1. Record what happened

Save or photograph:

• Your booking confirmation, ticket, and boarding pass
• The scheduled and actual departure and arrival times
• Delay notices, text messages, emails, and airline-app updates
• The stated reason for the delay
• Details of any rebooking or missed connection
• Receipts for meals, lodging, transportation, or other necessary costs
• The names or descriptions of staff who gave important instructions

Ask the airline to state the delay reason in writing if possible. Airport staff may not know the final operational cause, so preserve later emails or claim responses too.

2. Decide what you are requesting

Choose the remedy before submitting the claim:

• Refund: Explain that the flight was canceled or significantly changed and that you did not accept the alternative, if that is true.
• Expense reimbursement: List each expense, its date, amount, and receipt.
• EU261 or UK261 compensation: State the route, arrival delay, passenger count, and reason you believe no exception applies.
• Insurance benefit: Follow the insurer's form and policy deadline instead of treating the claim as an airline compensation request.
• Montreal claim: Describe the actual financial loss and attach evidence connecting it to the delay.

A calculator can estimate a possible EU261 amount, but it cannot determine whether the airline's explanation is legally sufficient or whether the flights were on one booking.

3. Submit the claim to the airline first

Use the airline's official complaint or compensation form when available. Include the booking reference, but do not send complete bank-account details in an ordinary email. Use a secure payment form if the airline requests payment information.

Keep a copy of everything you submit and save the confirmation number. If you traveled with Ryanair, easyJet, or another carrier, the airline's form is only the filing channel. It does not replace the law that applies to your route.

4. Follow up with a focused request

If the airline gives a generic denial, ask:

• What exact event caused the delay?
• Which flight segment and time period did it affect?
• What evidence supports the extraordinary-circumstance explanation?
• Why were the claimed expenses excluded?
• Was the proposed replacement flight treated as an accepted alternative?

Ask for the response in writing. Do not accept a voucher as a final settlement unless you understand what rights or cash payment accepting it may affect.

Flight delay claim letter template

Subject: Flight [number] on [date] - [refund, expense reimbursement, or statutory compensation]

Dear [airline or customer-service team],

I was booked on flight [number] from [origin] to [destination] on [date]. The scheduled arrival was [time and date], and the actual arrival at my final destination was [time and date].

I am requesting [describe one remedy]:

• [For a U.S. refund] The flight was canceled or significantly changed, and I did not accept the offered alternative transportation.
• [For expenses] I request reimbursement of the attached reasonable expenses totaling [amount].
• [For EU261 or UK261] I request the applicable statutory compensation because the arrival delay was [duration] and the route falls within the relevant passenger-rights rules.

My name is [name], and my booking reference is [reference]. Attached are my itinerary, boarding pass, delay records, airline messages, and receipts.

If you deny this request, please identify the specific cause of the delay, explain the rule or policy relied on, and provide any relevant supporting information.

Please confirm receipt and respond in writing.

Sincerely,
[Name]
[Email and phone number]

If you want both a statutory payment and reimbursement of expenses, identify them as separate requests. That makes it harder for the airline to answer only one part of the dispute.

What to do if the airline denies your claim

U.S. passengers

First, ask the airline to review the denial and keep its written response. If the issue involves a refund, misleading information, or another airline-service complaint, use the Department of Transportation Aviation Consumer Protection process. The FAA's airline service complaint guidance directs passengers to the appropriate DOT complaint channel.

A DOT complaint can document a possible regulatory problem and bring the matter to the agency's attention. It is not automatically a private court award and does not guarantee that the airline will pay compensation.

You can also check:

• A travel-insurance claim for covered delay expenses
• A credit-card trip-delay or interruption benefit
• The airline's written customer-service commitments
• A court or other formal claim if the amount justifies the cost and effort

EU passengers

For a cross-border dispute, the Your Europe FAQ points passengers toward their national European Consumer Centre. Depending on the country and airline, an approved alternative-dispute-resolution body or national aviation authority may also be available.

UK passengers

For a UK claim, check whether the airline belongs to an approved ADR scheme. Citizens Advice explains that passengers may have another complaint route when the airline will not provide the required compensation.

Common questions

Can I get compensation for a three-hour delay in the United States?

Usually not as a fixed federal payment if you completed the flight. You may have a refund right if the disruption was a qualifying cancellation or significant change and you rejected the alternative. You may also have coverage through an airline policy, insurer, or card benefit. A three-hour arrival delay on a covered EU or UK route is a different matter.

Does bad weather cancel my EU261 claim?

Weather can qualify as an extraordinary circumstance and remove fixed compensation. It does not necessarily remove rights to care or other assistance. Ask the airline to identify the weather event and keep records showing how it disrupted the flight.

Are technical problems always the airline's responsibility?

No single label settles the issue. Under EU guidance, ordinary maintenance-related technical failures generally are not extraordinary. In the United States, however, a technical problem still does not create an automatic federal cash payment for a completed delayed flight.

What if I missed a connection?

Tell the airline whether all segments were on one booking. For EU261, the delay at the final destination is often decisive when the connection is part of one reservation. With separate tickets, the airline may assess each ticket separately, and missed-connection losses may be harder to recover.

How long do I have to file?

There is no single deadline covering every U.S. delay complaint, EU261 claim, UK261 claim, insurance policy, and Montreal Convention case. File promptly, follow the airline or insurer's stated deadline, and verify the limitation period in the country governing the claim before relying on an old booking.

Should I use a claims company?

You can submit a claim yourself first. If you use a paid service, read its fee, authority, settlement, and withdrawal terms. A claims service can handle paperwork, but it does not create eligibility or extend a legal deadline.

This is general consumer information, not legal advice. Start by saving the itinerary, confirming the rule that applies to the route, and sending the airline a specific written request.