United Flight 3903 Deals & Information (2026/2027)

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Frequently asked questions

What route does flight number UA3903 take?
UA3903 jets between ATW and ORD and flies direct. This service takes 1 hour and 9 minutes.
How often is UA3903 on time?
For those flying with United Airlines flight number UA3903 from ATW to O'Hare Airport, 88% of these services arrive on time. If your plane is delayed, expect to wait around 17 minutes on average. Thanks to this air carrier's top-notch service, this trip has a star rating of 4.2.
What kind of plane is on flight number UA3903?
The Bombardier CRJ is the type of plane usually used for flight number UA3903. Typically, this flight heads off from ATW and lands at ORD.
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 UA3903 flight with Travelocity, please visit our Customer Service Portal.