United Flight 3873 Deals & Information (2026/2027)

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Frequently asked questions

What route does flight number UA3873 take?
UA3873 is used on multiple routes, but the most common is between Bangor Intl. Airport (BGR) and IAD. If on a non-stop flight, you'll land in around 2 hours and 5 minutes. Multi-stop flights can also use this number, as can services on other routes.
What kind of plane is on flight number UA3873?
It's likely you'll be traveling aboard the Bombardier CRJ if you've booked a seat on flight UA3873 from Bangor International Airport to Washington, DC Airport (IAD-Washington Dulles Intl.). This is the most commonly used aircraft model on this particular route.
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 UA3873 flight with Travelocity, please visit our Customer Service Portal.