FLIGHT PROBLEMS · UNITED AIRLINES
Missed your United flight? What happens to your ticket, your return flight, and what to do now
If you are about to miss a United flight, the clock that matters is the scheduled departure time. Act before it and you usually keep the ticket's value and the rest of your trip; miss it silently and United's own contract lets it cancel your return and treat a nonrefundable fare as worth nothing. Here is what the contract actually says, what to do in the next 10 minutes, and when a missed flight is United's problem instead of yours.
Ad / affiliate disclosure: this page has one AirHelp link (in the section on missed connections United caused); I may earn a commission if you use it, at no extra cost to you. Nothing on this page needs a paid service: every fix below is free through United. PracticalPivot is not affiliated with United Airlines. Prepared with AI assistance and checked against United's Contract of Carriage and united.com help pages on October 27, 2026.
The 30-second answer
Running late: change or cancel the flight in the United app before the scheduled departure. United's Contract of Carriage (revised September 30, 2026) says nonrefundable fares "have no value after ticketed departure time" unless you cancel before it (Rule 7), and if you do not show up and United got no notice, it may cancel all your onward and return reservations (Rule 5).
Standard Economy and up: most US-origin tickets have no change fee, so you pay only any price difference for a later flight; same-day changes must leave within 24 hours of the original. Basic Economy: United says it cannot be changed unless you first upgrade to Economy.
Already missed it? Go straight to a United agent (or call 1-800-864-8331). Rebooking a no-show is at United's discretion; there is no written "flat tire rule".
What happens in each situation
| Your situation | What United's rules say | Do this |
|---|---|---|
| Running late, flight has not left, Economy or higher ticket | No change fee on most flights from the US; you pay any fare difference. Same-day changes: Premier members may get another flight free; others may pay a price difference. | My Trips > Change flight, pick a later flight with the same airports. Or cancel for a travel credit if you are not going. |
| Running late, Basic Economy | "You can't change your flight unless you upgrade to Economy or a premium cabin first." | Check My Trips before departure for the upgrade or cancel options it offers; if none, talk to an agent before the flight leaves. |
| At the airport after the check-in cutoff | United may cancel the reservation and deny boarding if you miss check-in or gate deadlines (table below). | Go to the counter or a kiosk immediately; ask to be moved rather than marked a no-show. |
| Flight already left, you never told United | Nonrefundable fare has no value; United may cancel all onward and return flights on the ticket. | Agent or 1-800-864-8331 now. Ask for the next flight and check that your return is still confirmed. |
| Skipping the first flight on purpose but keeping the return | The Rule 5 cancellation applies when United does not get notice before departure. | Cancel or change the first flight before it departs, then confirm the return in My Trips. |
| Missed a connection because an earlier United flight on the same ticket was late | That is a disruption, not a no-show. United says it will work to find you new flights and eligible vouchers. | Use "Rebooking options" in the app. See our United delay and cancellation guide. |
| Missed a United flight on a separate ticket because another airline was late | Each ticket is its own contract; the second airline does not have to protect you. | Call United before departure and change the flight; next time leave a long buffer or book one ticket. |
United's check-in and gate deadlines
From United's Contract of Carriage, Rule 5. Miss these and United can cancel your reservation even if you are in the terminal.
| Flight | Ticket bought, checked in, bags checked, boarding pass by | At the gate by |
|---|---|---|
| US domestic (not from Guam) | 60 minutes before departure | 15 minutes before departure |
| International (most airports, incl. trips with any international flight) | 75 minutes before departure (90 in Canada, Tel Aviv, Accra, Lagos and some Pacific islands) | 30 minutes before departure |
If your itinerary includes an international destination, United applies the international limits to every flight on it, including a domestic first leg.
What to do in the next 10 minutes
- Check the scheduled departure time. Everything in Rules 5 and 7 turns on acting before it.
- Open the United app > My Trips. Choose "Change flight" for a later flight (same departure and arrival airports, within 24 hours for a same-day change) or "Cancel flight" for a credit or refund option if you are not traveling.
- Basic Economy or the app shows no options: call 1-800-864-8331 or use Agent on Demand, and ask the agent to note that you contacted United before departure.
- Already at the airport and past the cutoff: go to the United counter, not the gate. Ask to be put on the next flight; be polite and quick, because this part is goodwill.
- Before you leave the counter or the call: check that every remaining flight, especially your return, still shows as confirmed, and screenshot it.
Checklist
- Confirmation number and last name ready
- Fare type known (Basic Economy or not: it is on your booking)
- Change or cancel made before the scheduled departure time
- Return flight still confirmed in My Trips (screenshot)
- Checked bags: an agent confirmed they are on your new flight (United asks you to check this an hour before)
- Any travel credit noted with its number and expiry date
Standby is not a fix for a no-show
United's standby list is free, but it is built for something else: you can join no more than 24 hours before your original flight, the new flight must be the same day with the same start and end point, and seats go out 30 minutes before a domestic flight and 60 before an international one. It is for getting an earlier flight, or for a disrupted one. If you have already missed your flight, ask an agent for a confirmed seat instead.
When a missed flight is United's problem (and the only time a claim service helps)
If a late United flight on the same ticket made you miss your connection, United rebooks you at no extra cost and you may be owed meals or a hotel; on flights leaving the EU or UK the delay at your final destination can also be worth cash. US rules do not require cash for delays, and DOT refund rules apply when the airline cancels or significantly changes the flight, not when you miss it. Free route: claim from United directly. Paid route, for EU/UK departures only:
Check an EU or UK United delay with AirHelp →
Affiliate link. AirHelp checks for free and takes a share only if it wins. It cannot help with a flight you missed yourself.
Common questions
What happens if I miss my United flight and don't tell them?
United's Contract of Carriage (Rule 5) lets it cancel every onward and return reservation on the ticket when you fail to show up and it did not get notice before departure. Rule 7 says a nonrefundable fare has no value after the ticketed departure time. So a silent no-show can cost both the missed flight and the rest of the trip.
Can I keep my United return flight if I miss or skip the first flight?
Tell United before the first flight leaves. Rule 5 ties the cancellation of onward and return space to United not receiving notice before departure. Change or cancel the first flight in My Trips or call 1-800-864-8331, and confirm the return still shows as confirmed.
Does United have a flat tire rule?
Not in writing. The phrase 'flat tire' does not appear in United's Contract of Carriage (revised September 30, 2026). Agents sometimes rebook late passengers on the next flight, but that is goodwill, not a right. Go to an agent at once and ask.
Can I fly standby if I missed my United flight?
United's free standby list is for a different flight on the same day as your original flight, joined no more than 24 hours before it, with the same start and end point. It is meant for an earlier flight or a disrupted one; after a no-show, ask an agent to rebook you instead.
Do I get compensation if I missed a United connection because of a delay?
That is not a missed flight but a disruption: United rebooks you at no cost when its earlier flight on the same ticket made you miss the connection. Cash compensation is not required on US flights; EU261 can pay up to EUR 600 on flights leaving the EU.
How we checked this
On October 27, 2026 we read United's Contract of Carriage (revised September 30, 2026: Rule 5 Cancellation of Reservations, including "Failure to Occupy Space" and check-in time limits, and Rule 7 Ticket Validity Period), and united.com's flight changes, flexible booking options and change fees, flying standby and missed, delayed and canceled flights pages. Many pages ranking for this question are copied PDFs that push unofficial phone numbers; the only United number on this page is the one printed on united.com. This is general information, not legal advice.