A long delay does not automatically entitle a U.S. passenger to cash compensation. What you can recover depends on whether you flew, what the airline changed, where the flight operated, and whether you can prove a financial loss.

For most U.S. travelers, the main federal remedy is a refund when the airline cancels or significantly changes a flight and you choose not to travel. EU261 and UK261 can provide fixed compensation and care on qualifying routes. The Montreal Convention may cover documented financial losses on some international journeys, but it does not pay a standard delay amount.

Check four facts before you file. Did you fly? A refund claim is not the same as a compensation or expense claim. Which rules apply? That turns on the departure country, destination, operating airline, and whether the trip was international. How late did you arrive at your final destination? For EU and UK claims, that final arrival usually matters more than the first departure delay. What can you prove? Keep the booking, delay notices, timestamps, receipts, and every conversation with the airline.

Flight delay remedies at a glance

Those are separate claims. A qualifying EU261 passenger may receive fixed compensation and reimbursement for reasonable meals. A U.S. passenger who did not travel may seek a refund instead.

U.S. flight delay rights

U.S. federal law generally does not require airlines to pay a fixed amount just because a flight arrived late. That remains true whether the cause was a mechanical problem, staffing issue, air traffic restriction, or weather.

An airline may still offer a voucher, miles, a meal, or a hotel room under its customer-service policy. Those offers are not the same as a legal right to compensation. Read the airline's conditions of carriage and disruption commitments before assuming an advertised benefit applies.

Involuntary denied-boarding compensation is a different issue. Do not use overbooking rules to evaluate an ordinary delay.

When a U.S. refund may be due

The Department of Transportation's refund framework covers cancellations and significant changes or delays. In many ordinary cases, a significant change can involve:

• Arrival at least three hours later than scheduled on a domestic itinerary
• Arrival at least six hours later than scheduled on an international itinerary
• Departure from a different airport
• An additional connection
• A downgrade in cabin class

The practical line is this: if the airline cancels or significantly changes the transportation and you do not accept the alternative, you can generally request a refund rather than travel on the replacement itinerary. A voucher or travel credit is not a refund to your original payment method, so read the offer before you accept it.

If you accept a rebooking and complete the trip, you normally will not receive a full ticket refund for transportation you used. You can still ask for any delay benefit the airline promised and check travel insurance or credit-card trip-delay coverage.

The Federal Register notice on airline refunds and consumer protections is a useful primary-source starting point for the federal framework.

Meals and hotels in the United States

Federal law generally does not require an airline to provide meals or overnight accommodation for an ordinary U.S. flight delay. Airlines may voluntarily cover those expenses for disruptions they consider controllable, such as certain maintenance or crew problems.

Ask for a meal or hotel voucher before you spend your own money. If staff refuse or no voucher is available, keep itemized receipts and proof of payment. Reimbursement is more likely when the cost was reasonable, necessary, and covered by the airline's written policy. Avoid premium hotels, alcohol, upgrades, and other expenses the policy excludes.

Missed connections

If all flights are on one reservation, the airline will usually rebook you under its contract of carriage. Ask for the earliest reasonable alternative and confirm whether your checked baggage and onward segments remain active.

Separate tickets are riskier. A delay on the first ticket may not require the first airline to pay for a missed flight booked under a different contract. Travel insurance may cover that loss if the policy includes missed connections.

EU261 and UK261 flight delay compensation

EU261 and UK261 are not general U.S. rules. They apply only when the itinerary meets the relevant territorial and airline conditions.

When EU261 can apply

EU261 generally covers:

• Flights departing from an EU airport, regardless of the operating airline
• Qualifying flights arriving in the EU from outside the EU when operated by an EU carrier

Related arrangements can affect some flights involving countries such as Iceland, Norway, or Switzerland. Check the departure country and operating carrier rather than relying on the airline nationality shown during booking.

When UK261 can apply

UK261 generally covers:

• Flights departing from a UK airport, regardless of the airline
• Qualifying flights arriving in the UK from abroad when operated by a UK carrier

A flight from Paris to London on a non-UK carrier may be assessed under EU rules because it departed the EU. A flight from London to New York may be assessed under UK261 because it departed the UK. An inbound flight is not automatically covered just because it lands in Europe or the United Kingdom.

The UK Civil Aviation Authority's flight-delay guidance explains the UK amounts and assistance rules.

Fixed compensation amounts

For a qualifying arrival delay of at least three hours, the usual full compensation amounts are:

The payment is normally per passenger, not per booking, and is not based on the ticket price. The airline may reduce the amount by 50% when it provides rerouting that arrives within the applicable time limit, which is generally two, three, or four hours depending on the route.

For connecting flights on one reservation, the relevant delay may be the delay at the final destination. Separate tickets can produce a different result.

Care while you wait

EU261 and UK261 distinguish between care and compensation. Care is assistance during the disruption and can include reasonable food, drinks, communications, hotel accommodation, and transport between the airport and hotel.

The usual care thresholds are:

If the airline does not provide the assistance, buy only reasonable necessities and keep receipts. The right to care can remain even when the airline later avoids fixed compensation.

Extraordinary circumstances

An airline may avoid EU261 or UK261 compensation when the delay resulted from an extraordinary circumstance that it could not reasonably prevent. Severe weather, air traffic control restrictions, airport closures, and certain security events may qualify.

The label alone is not enough. Ordinary technical faults and routine airline operations are generally not automatically extraordinary. Airline staff strikes are often treated differently from external air traffic control strikes, but the facts matter.

Ask the carrier to identify the specific event, when it occurred, how it caused your delay, why the event could not reasonably have been avoided, and why the delay lasted as long as it did. Even if the fixed-payment claim fails, ask separately for care and reimbursement of reasonable expenses.

The Montreal Convention: damages, not automatic compensation

The Montreal Convention can apply to international carriage and may allow a passenger to claim proven financial damage caused by a delay. It is not a fixed-payment system like EU261.

A Montreal claim generally requires an international itinerary covered by the Convention, a direct connection between the delay and the loss, evidence of the actual financial damage, and a claim brought within the Convention's strict two-year period.

The liability limit is expressed in Special Drawing Rights and can change over time. It is a cap on eligible damages, not an automatic payout. The Convention is therefore more useful for documented losses than for frustration, lost time, or a general request for inconvenience money.

Do not assume that an airline complaint extends the two-year period. If the deadline is approaching, verify the applicable court and limitation rules promptly.

Travel insurance and credit-card trip-delay benefits are separate contracts. Review the minimum delay, covered expenses, exclusions, and receipt requirements before relying on them.

What evidence makes a delay dispute stronger?

Save the following before deleting travel emails or closing the airline app:

• Booking confirmation and ticket number
• Boarding passes and seat assignments
• Flight number, date, route, and operating carrier
• Scheduled departure and arrival times
• Actual departure and final arrival timestamps
• Photos or screenshots of airport boards and airline notifications
• The airline's stated reason for the disruption
• Rebooking details and proof of any missed connection
• Itemized receipts for food, lodging, transport, and communications
• Copies of refund requests, claim forms, and airline replies
• Your case number and the name or role of any staff member who refused assistance

For EU261 and UK261, the time the aircraft reaches its final destination can matter. Keep evidence showing when passengers were allowed to leave the aircraft, not only when the plane touched down.

A message from the airline saying "weather" or "operational issue" may not answer whether the event legally qualifies as extraordinary. Preserve it, but ask for a more specific explanation.

How to file a flight delay dispute

1. Ask for help at the airport

Request the reason for the delay, the next available routing, and any meal or hotel assistance. If the airline does not provide care, ask whether it will reimburse reasonable expenses and make a note of the answer.

Do not spend heavily before asking. If the delay creates an urgent safety or accessibility need, prioritize that need and keep a record of why the expense was necessary.

2. Choose the correct remedy

Use the facts to decide whether you are requesting:

• A U.S. ticket refund because you declined a cancellation or significant change
• Reimbursement under an airline policy
• EU261 or UK261 fixed compensation
• Reimbursement of reasonable care expenses
• Montreal Convention damages
• Payment under travel insurance or a card benefit

Avoid describing a statutory compensation claim as a "refund." Airlines may treat those requests differently.

3. Send a written claim

File through the operating airline's refund or complaint form. If a travel agency issued the ticket, copy the agency when the dispute concerns the ticket purchase or refund.

Keep the message short and specific. Include the flight details, scheduled and actual times, passengers covered, amount requested, and attached evidence. A useful request is:

"I am requesting [the refund, expense reimbursement, or compensation] for flight [number] on [date]. The scheduled final arrival was [time], and the actual final arrival was [time]. Please confirm the applicable rule or policy, explain any denial in writing, and provide the payment timeline."

Submit separate requests if you are seeking both a refund and a statutory compensation payment.

4. Challenge a denial

If the airline says the delay was extraordinary, ask for the specific event and evidence rather than replying with a general objection. If it says the delay was under three hours, check the final arrival time and whether all flights were on one reservation.

If the carrier says you bought through a third party, explain whether you are seeking a ticket refund or compensation from the operating carrier. The responsible business can differ depending on the remedy.

5. Escalate through the right channel

For a U.S. airline service complaint, the FAA's complaint guidance directs consumers to the Department of Transportation's Aviation Consumer Protection process.

For an EU or UK claim, use the relevant national enforcement body or an available approved alternative-dispute-resolution service. The authority connected with the departure country is often the relevant starting point, but check the country's procedure.

A regulator complaint can document a pattern or prompt an airline response, but it is not the same as a court judgment and may not guarantee personal payment.

Court deadlines vary under U.S., EU, and UK law. Do not rely on a general internet statement that every claim has a two-, five-, or six-year window. The Montreal Convention's two-year limit is a separate rule.

Common denial reasons and practical responses

Should you use a flight-claim company?

You can usually begin with the airline and the relevant regulator without paying a claims company. If you use one, read the agreement before assigning the claim. Check:

• The percentage or fixed fee
• Whether the fee applies to expense reimbursement as well as statutory compensation
• Whether the company can settle without your approval
• Whether you can cancel the authorization
• Who pays court costs if the claim fails

A claims company cannot create eligibility where the itinerary or delay does not meet the applicable rule.

Frequently asked questions

Can I claim money for a four-hour delay in the United States?

Not automatically. If you took the flight, U.S. federal law generally does not provide a fixed delay payment. If the airline canceled or significantly changed the trip and you chose not to travel, a refund may be available. Airline policy, insurance, or card benefits may provide additional help.

Does EU261 apply to every non-EU airline landing in Europe?

No. An inbound flight from outside the EU generally needs to be operated by a qualifying EU carrier. A flight departing from an EU airport is assessed differently and can be covered regardless of the airline.

Can I claim for a weather delay?

In the United States, weather does not create automatic cash compensation. Under EU261 or UK261, severe weather may remove the fixed compensation obligation, but the airline may still owe care while you wait.

Can a technical problem qualify for EU261 compensation?

Often, ordinary technical problems do not automatically excuse compensation. The outcome depends on the cause and the airline's ability to prevent it. Ask for the precise technical or operational reason instead of accepting a general label.

What if I missed a connecting flight?

If the flights were on one reservation, ask the airline to rebook you and preserve the rest of the itinerary. For EU or UK claims, the final arrival delay may control. Separate tickets can leave you responsible for the second booking unless insurance or another contract applies.

What is the Montreal Convention deadline?

A court action under the Montreal Convention generally must be brought within two years. Because the deadline is strict, do not wait for an airline's internal complaint process if a significant international loss is involved.

Pull your booking confirmation, write down the scheduled and actual final arrival times, and send the operating airline a short written claim that names the remedy you want: refund, care expenses, EU261 or UK261 compensation, or documented Montreal damages.