United Flight 456 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 456 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $289 and $214 for one-way flights to Bozeman Yellowstone Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Feb 1 - Tue, Feb 10
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$289 Roundtrip, found 3 days ago
$289
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 1 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Tue, Feb 10, priced at $289 found 3 days ago
Sat, May 9 - Sat, May 16
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$290 Roundtrip, found 4 hours ago
$290
Roundtrip
found 4 hours ago
Select United flight, departing Sat, May 9 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Sat, May 16, priced at $290 found 4 hours ago
Sat, Jan 17 - Sat, Jan 24
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 17 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Sat, Jan 24, priced at $304 found 1 day ago
Mon, Nov 9 - Mon, Nov 16
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$308 Roundtrip, found 4 days ago
$308
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 9 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Mon, Nov 16, priced at $308 found 4 days ago
Sat, Jan 17 - Sat, Jan 24
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 17 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Sat, Jan 24, priced at $314 found 1 day ago
Sat, May 9 - Sat, May 16
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$315 Roundtrip, found 4 hours ago
$315
Roundtrip
found 4 hours ago
Select United flight, departing Sat, May 9 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Sat, May 16, priced at $315 found 4 hours ago
Sat, Jan 17 - Sat, Jan 24
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 17 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Sat, Jan 24, priced at $318 found 1 day ago
Sun, Feb 1 - Tue, Feb 10
IAD
Washington Dulles Intl.
BZN
Bozeman Yellowstone Intl.
$322 Roundtrip, found 3 days ago
$322
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 1 from Washington Dulles Intl. to Bozeman Yellowstone Intl., returning Tue, Feb 10, priced at $322 found 3 days ago

Frequently asked questions

What route does flight number UA456 take?
Flight number UA456 takes roughly 2 hours and 16 minutes to jet directly from Austin–Bergstrom International Airport to Denver, CO Airport (DEN-Denver Intl.). Sure, there's magic in the destination, but getting there is half the fun!
What kind of plane is on flight number UA456?
The route for UA456 is nearly always Austin, TX Airport (AUS-Austin-Bergstrom Intl.) to Denver Intl. Airport (DEN), and the Airbus A319 is the type of aircraft you'll probably be jetting off with.
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 UA456 flight with Travelocity, please visit our Customer Service Portal.