United Flight 255 Deals & Information (2025/2026)

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United Flight 255 Route Deals From $218

The cheapest prices found with in the last 7 days for return flights were $426 and $218 for one-way flights to Baltimore Washington Intl. Thurgood Marshall for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 30 - Wed, Dec 31
ORD
O'Hare Intl.
BWI
Baltimore Washington Intl. Thurgood Marshall
$426 Roundtrip, found 2 hours ago
$426
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Dec 30 from O'Hare Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Wed, Dec 31, priced at $426 found 2 hours ago

Frequently asked questions

What route does flight number UA255 take?
UA255 takes numerous routes. The most frequently flown is Austin, TX Airport (AUS-Austin-Bergstrom Intl.) to IAD, which is a direct flight. This flight generally takes 3 hours and 12 minutes. However, there are likely to be other flights with this number that are multi-stop.
How often is UA255 on time?
United Airlines flight number UA255 from Austin-Bergstrom Intl. Airport (AUS) to IAD arrives on schedule 85% of the time, which means you can be confident you will reach where you need to go ASAP. When it is running behind schedule, it is generally delayed by 49 minutes. This service has a 2.25-star rating.
What kind of plane is on flight number UA255?
There's every chance you'll be aboard the Airbus A319 if you're traveling from Austin-Bergstrom Intl. Airport (AUS) to IAD, one of several routes used for flight number UA255.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA255 flight with Travelocity, please visit our Customer Service Portal.