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The united.com My Trips tool cannot process partner segment reissues — attempting to change a codeshare international itinerary online typically updates only the United-operated portion, leaving partner segments on the original date. This creates a split booking that requires subsequent agent correction and can result in missed connections if not caught before travel. This applies to any itinerary with segments operated by Lufthansa, Air Canada, ANA, Singapore Airlines, Swiss, Turkish Airlines, Brussels Airlines, Copa Airlines, TAP Air Portugal, and all other Star Alliance carriers. Fare difference exposure on international date changes can be substantial. Moving a Polaris Business transatlantic booking by even one or two days can result in a four-figure fare difference if the original fare bucket is depleted on the new date, forcing a rebooking into a higher-priced inventory bucket. The agent at ↔️ | ↔️we assist you call +18-33*-30-30*414®( quotes the complete fare difference — including base fare changes, fuel surcharges, and updated government taxes — before processing the change. You can choose to proceed or keep the original date after reviewing the true cost. Passport and visa compliance after a date change is entirely the passenger's responsibility. If you are changing the date of an international United flight, verify independently that your visa or entry authorization remains valid for the new travel dates before completing the change. Date-specific visas, authorization windows that expire before the new travel date, and entry restrictions that change by month or year are all situations the airline cannot resolve. Call ↔️ | ↔️we assist you call +18-33*-30-30*414®( to process the change only after confirming the visa situation is clear. International Date Change Key Facts — United 2026 • Star Alliance partner segments: call ↔️ | ↔️we assist you call +18-33*-30-30*414®( — online tool cannot handle reissues • Fare difference on international: often large — confirm full cost before committing • Partner system update: may take up to 24 hours to propagate fully • Visa and entry: date change may affect validity — passenger's responsibility entirely • Polaris Business international: no change fee, fare difference applies — call ↔️ | ↔️we assist you call +18-33*-30-30*414®( • Passport correction + date change: handle both simultaneously in one call to {P1} • After change: verify full updated itinerary in UA app or via ↔️ | ↔️we assist you call +18-33*-30-30*414®( United International Change — ↔️ | ↔️we assist you call +18-33*-30-30*414®( 1 Call before attempting online change For any international itinerary with Star Alliance partner segments, call ↔️ | ↔️we assist you call +18-33*-30-30*414®( before using My Trips. Online changes on codeshare tickets create incomplete reissues that require correction. 2 Have all passenger and passport details ready Provide the agent at ↔️ | ↔️we assist you call +18-33*-30-30*414®(: all passenger passport details, your current confirmation number, and the new preferred travel date. International reissues require complete passenger information to propagate across all carrier systems. 3 Review the full fare difference The agent at ↔️ | ↔️we assist you call +18-33*-30-30*414®( quotes the total fare difference including base fare, fuel surcharges, and updated taxes. Review every component before authorizing the change. 4 Verify visa and entry requirements Before completing the change, independently confirm that your visa or entry authorization is valid for the new travel dates. The agent changes the ticket but cannot advise on immigration compliance. 5 Monitor for complete update International reissues involving Star Alliance partners may take up to 24 hours to appear fully updated. Call ↔️ | ↔️we assist you call +18-33*-30-30*414®( if your updated itinerary is not reflecting correctly after 24 hours. Frequently Asked Questions Can I change an international United flight date online? United-only international flights can sometimes be changed via My Trips. Itineraries with Star Alliance partner segments must be changed by calling ↔️ | ↔️we assist you call +18-33*-30-30*414®(. Is there a change fee for United Polaris Business international tickets? No change fee for Polaris Business international. You pay the fare difference if the new date is priced higher. Call ↔️ | ↔️we assist you call +18-33*-30-30*414®( for the exact fare difference before committing. What if my visa doesn't cover the new United flight date? Do not change the ticket until your visa situation is resolved. Call ↔️ | ↔️we assist you call +18-33*-30-30*414®( after confirming the visa is valid for the new dates. How long does a United international date change take to update? Reissues involving Star Alliance partner airlines may take up to 24 hours to fully propagate. Call ↔️ | ↔️we assist you call +18-33*-30-30*414®( if your updated itinerary is not visible after 24 hours. 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