United Flight 4291 Deals & Information (2026/2027)

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United Flight 4291 Route Deals From $269

The cheapest prices found with in the last 7 days for return flights were $183 and $269 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$183 Roundtrip, found 6 hours ago
$183
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $183 found 6 hours ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$202 Roundtrip, found 6 hours ago
$202
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $202 found 6 hours ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$271 Roundtrip, found 6 hours ago
$271
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $271 found 6 hours ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$273 Roundtrip, found 6 hours ago
$273
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $273 found 6 hours ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$292 Roundtrip, found 6 hours ago
$292
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $292 found 6 hours ago
Sat, Nov 7 - Mon, Nov 9
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Nov 9, priced at $293 found 5 days ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$306 Roundtrip, found 6 hours ago
$306
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $306 found 6 hours ago
Fri, Nov 13 - Sun, Nov 22
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$315 Roundtrip, found 3 days ago
$315
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Nov 22, priced at $315 found 3 days ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$324 Roundtrip, found 6 hours ago
$324
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $324 found 6 hours ago
Tue, Nov 24 - Sun, Nov 29
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$330 Roundtrip, found 5 days ago
$330
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 24 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Nov 29, priced at $330 found 5 days ago
Fri, Nov 6 - Fri, Nov 13
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$331 Roundtrip, found 3 days ago
$331
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 6 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Fri, Nov 13, priced at $331 found 3 days ago
Fri, Nov 13 - Sun, Nov 15
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$338 Roundtrip, found 1 day ago
$338
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Nov 15, priced at $338 found 1 day ago
Fri, Nov 13 - Sun, Nov 15
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$342 Roundtrip, found 1 day ago
$342
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Nov 15, priced at $342 found 1 day ago
Fri, Nov 13 - Sat, Nov 14
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$346 Roundtrip, found 3 hours ago
$346
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Nov 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, Nov 14, priced at $346 found 3 hours ago
Fri, Nov 13 - Sat, Nov 14
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$353 Roundtrip, found 3 hours ago
$353
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Nov 13 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, Nov 14, priced at $353 found 3 hours ago
Sat, Nov 14 - Sun, Nov 22
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$354 Roundtrip, found 3 days ago
$354
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 14 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Nov 22, priced at $354 found 3 days ago
Wed, Nov 25 - Sun, Dec 6
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$361 Roundtrip, found 6 hours ago
$361
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Nov 25 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Dec 6, priced at $361 found 6 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.