United Flight 366 Deals & Information (2025/2026)

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Frequently asked questions

What route does flight number UA366 take?
UA366 flies direct between Denver Intl. Airport (DEN) and Austin, TX Airport (AUS-Austin-Bergstrom Intl.) in 2 hours and 6 minutes. It can sometimes take other routes though, some of which may be multi-stop trips. Keep an eye out for this when booking your airfare to avoid any mix-ups.
What kind of plane is on flight number UA366?
If you're on flight UA366 from Denver Intl. Airport (DEN) to Austin, TX Airport (AUS-Austin-Bergstrom Intl.), there's a good chance you'll be heading off on a Boeing 737-800. This flight number serves many routes, but this is the most common one.
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 UA366 flight with Travelocity, please visit our Customer Service Portal.