United Airlines Flight Delay Compensation: What You're Actually Owed

United Airlines flight delay compensation is governed by at least three separate legal frameworks depending on your route, the delay length, and whether the airline offered an alternative. The 2024 DOT refund rule requires United to pay a cash refund for any cancellation or significant delay (3+ hours domestic, 6+ hours international) where you did not accept a rebooking or alternative. EU261/2004 applies to any United flight departing an EU airport or arriving in the EU on a United-operated ticket. The Montreal Convention Article 19 covers documented out-of-pocket losses on international routes up to roughly $7,300 per passenger. Most passengers at the gate take a voucher or travel credit because United's agents offer those first and prominently. The cash rights are never waived by accepting a voucher if you did not explicitly consent to substitution. See the full US DOT passenger rights overview for the regulatory background.

Accepting a United travel credit at the gate does not forfeit your DOT cash refund right if the delay meets the threshold. Push back in writing.

The DOT final rule on refunds that took effect October 28, 2024 is the clearest protection US domestic fliers have. Under the rule, United must provide a cash refund (or original payment-method refund) when: (1) United cancels the flight for any reason; (2) a domestic flight departs or arrives 3 or more hours late; (3) an international flight departs or arrives 6 or more hours late; (4) the departure or arrival airport changes; or (5) the class of service is downgraded. United has 7 business days to process refunds for credit card purchases and 20 calendar days for other methods. The rule covers all tickets, including basic economy and non-refundable fares, when United causes the qualifying disruption. United cannot substitute a travel credit for this cash right without the passenger's affirmative, informed consent.

The DOT rule applies to all ticket types, including basic economy. Fare class does not reduce the refund right.

United's own Customer Commitment page describes some of these protections, but understates the legal obligation. United offers meal vouchers (typically $10 to $20) for delays over 3 hours and hotel accommodations for overnight delays caused by United-controllable events. Those duty-of-care measures do not satisfy the cash refund right on a cancelled or significantly delayed ticket. They are separate obligations.

The DOT rule defines a 'significant delay' for domestic flights as 3 or more hours measured from the scheduled departure or arrival time. For international routes, the threshold is 6 hours. United often characterizes delays below 3 hours as minor and offers nothing proactively. If your domestic United flight departs 2 hours 59 minutes late, no cash refund right is triggered under DOT (though duty of care and Montreal Convention Article 19 may still apply if the delay was on an international itinerary). The 3-hour threshold is measured gate-to-gate on the delayed segment, not from the time you originally checked in. A delay that crosses midnight counts once per segment, not cumulatively across an itinerary. If you miss a connection because United delayed your first segment by 90 minutes, and you ultimately arrive at your destination 4 hours late, that triggers the domestic refund right even if no single segment was delayed 3 hours independently, because your arrival is 3+ hours delayed overall.

Missed connection causing 3+ hour late arrival counts as a significant delay. United cannot escape the refund right by pointing to the individual segment times.

When United cancels your flight, you are entitled to a full cash refund of the ticket price, all government taxes and fees, and any ancillary fees paid (seat upgrades, checked bags, change fees on a prior rebooking). United cannot substitute future travel credits for this refund without your explicit opt-in. The process: request the refund at the gate, at the airport service desk, or through United's refund request form online. If United's agent offers a rebooking on a comparable United or Star Alliance flight, you are not required to accept it. You may decline the rebooking and take the cash refund. If you accept the rebooking and then the rebooked flight is also cancelled or significantly delayed, your refund right resets on the rebooked segment. See the full guide to how to get a refund from an airline for the demand letter template and escalation steps.

EU Regulation 261/2004 applies to United flights departing from any EU member state airport, regardless of whether United is an EU carrier. If you're flying United from Frankfurt, Amsterdam, London Heathrow (UK261 applies here, not EU261), Paris, Madrid, or any other EU departure airport and your flight is cancelled, delayed 3+ hours, or you're denied boarding, EU261 applies. Compensation is fixed: EUR 250 for flights under 1,500 km, EUR 400 for 1,500 to 3,500 km, and EUR 600 for flights over 3,500 km (which covers most transatlantic routes). United must also provide meals, refreshments, and accommodation for long delays under the duty-of-care provisions. The 'extraordinary circumstances' defense (weather, ATC strikes, political unrest) is available to United but is interpreted narrowly. Technical faults discovered during maintenance are not extraordinary; pre-existing known aircraft issues are not extraordinary. See the complete EU261 guide for route-by-route eligibility.

EU261 applies on any United flight departing an EU airport. United cannot opt out of EU law by routing through a hub outside the EU.

When United involuntarily bumps you (denied boarding against your will because the flight is oversold), DOT rules require the following cash compensation: if United gets you to your destination within 1 hour of your original arrival, no compensation is owed. If the delay is 1 to 2 hours domestically (1 to 4 hours internationally), compensation is 200% of your one-way fare, capped at $775. If the delay exceeds 2 hours domestically (4 hours internationally), compensation is 400% of your one-way fare, capped at $1,550. United must hand you the check or electronic payment immediately at the gate. United may offer a volunteer bump before resorting to involuntary bumping, and volunteer compensation is negotiable upward. The involuntary bumping amounts above are minimums under DOT, not maximums United might offer to volunteers. See the full denied boarding compensation guide for exactly how to negotiate. The DOT FAQ confirms maximum involuntary denied boarding compensation is $1,550 for delays over 2 hours domestic as of 2024 rule updates, though some sources still cite older $775/$1,550 limits; check the current DOT consumer protection page at transportation.gov/airconsumer for the most current figures.

United's first offer at the gate is almost always a travel credit or MileagePlus miles, not cash. The credit amount is often modest relative to what the law provides. Here is a comparison for a common scenario (domestic cancellation, 4-hour delay to destination):

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  United's typical offer: $100 to $200 travel credit, rebooking on the next available flight.

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  What you're actually owed: full cash refund of the ticket price (if you don't accept the rebook), plus duty of care (meals, hotel if overnight).

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  If bumped involuntarily: 200% to 400% of one-way fare (up to $1,550) in cash, on top of any refund.

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  On EU-departing routes: EU261 cash of EUR 250 to 600 per passenger, plus duty of care.

United's gate agents are trained to offer credits first. Request cash or original payment-method refund explicitly and in writing. Do not accept a voucher under pressure.

United's customer service complaint line is 1-800-864-8331. Written complaints to United Customer Care through their website generate a reference number and a written response within 30 days. If United does not respond or refuses, file a DOT complaint. DOT reports complaints publicly and contacts airlines on the passenger's behalf.

1. 1

   Collect documentation at the airport: boarding pass, delay/cancellation notification (screenshot), any written or emailed reason from United, receipts for meals, hotel, or ground transport you paid out of pocket.

2. 2

   Request a cash refund in writing at the airport or online: state the DOT regulation by name ('2024 DOT refund rule') and the threshold your delay met. Get a written response or confirmation number.

3. 3

   File with United Customer Care online: use the official United complaint form, attach your documentation, and reference DOT rules explicitly.

4. 4

   Wait 30 days: United has 30 days to acknowledge and a reasonable period to resolve. If they offer a voucher, decline in writing and restate your cash refund right.

5. 5

   File a DOT complaint if United refuses: at transportation.gov/airconsumer. DOT contacts United on your behalf and logs the complaint in the public Air Travel Consumer Report.

6. 6

   Use TravelStacks for DOT filing: if you don't want to navigate the process alone, submit your claim here and we file on your behalf for $19 flat.

For the complete playbook on airline refund claims, see how to get a refund from an airline. For denied boarding specifically, see airline denied boarding compensation guide.