United Flight 4291 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 4291 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $265 and $234 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 28 - Mon, Aug 31
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$265 Roundtrip, found 11 hours ago
$265
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Aug 28 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Aug 31, priced at $265 found 11 hours ago
Fri, May 22 - Mon, May 25
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$275 Roundtrip, found 1 day ago
$275
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 22 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, May 25, priced at $275 found 1 day ago
Fri, Aug 28 - Mon, Aug 31
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$291 Roundtrip, found 11 hours ago
$291
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Aug 28 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Aug 31, priced at $291 found 11 hours ago
Fri, May 15 - Sun, May 17
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$291 Roundtrip, found 3 days ago
$291
Roundtrip
found 3 days ago
Select United flight, departing Fri, May 15 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, May 17, priced at $291 found 3 days ago
Fri, Aug 28 - Mon, Aug 31
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$296 Roundtrip, found 11 hours ago
$296
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Aug 28 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Aug 31, priced at $296 found 11 hours ago
Thu, Oct 1 - Sat, Oct 3
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 1 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, Oct 3, priced at $302 found 2 days ago
Wed, May 13 - Sat, May 16
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$305 Roundtrip, found 7 hours ago
$305
Roundtrip
found 7 hours ago
Select United flight, departing Wed, May 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, May 16, priced at $305 found 7 hours ago
Sat, May 16 - Sun, May 17
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$306 Roundtrip, found 2 days ago
$306
Roundtrip
found 2 days ago
Select United flight, departing Sat, May 16 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, May 17, priced at $306 found 2 days ago
Fri, May 8 - Sat, May 9
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$407 Roundtrip, found 2 hours ago
$407
Roundtrip
found 2 hours ago
Select United flight, departing Fri, May 8 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $407 found 2 hours ago
Fri, May 8 - Sat, May 9
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$417 Roundtrip, found 2 hours ago
$417
Roundtrip
found 2 hours ago
Select United flight, departing Fri, May 8 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $417 found 2 hours ago
Fri, May 8 - Sat, May 9
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$423 Roundtrip, found 2 hours ago
$423
Roundtrip
found 2 hours ago
Select United flight, departing Fri, May 8 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $423 found 2 hours ago

Frequently asked questions

What route does flight number UA4291 take?
UA4291 operates from Denver, CO Airport (DEN-Denver Intl.) to Tulsa Intl. Airport and flies direct. This service generally takes 1 hour and 47 minutes.
What kind of plane is on flight number UA4291?
The Embraer ERJ is the aircraft model most commonly used for flight number UA4291. Usually, this flight departs from Denver, CO Airport (DEN-Denver Intl.) and comes in to land at Tulsa Intl. Airport (TUL).
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 UA4291 flight with Travelocity, please visit our Customer Service Portal.