United Flight 4291 Deals & Information (2025/2026)

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United Flight 4291 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $179 and $204 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Feb 5 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$179 Roundtrip, found 6 hours ago
$179
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Feb 5 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $179 found 6 hours ago
Thu, Jan 22 - Mon, Jan 26
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$182 Roundtrip, found 6 days ago
$182
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jan 22 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jan 26, priced at $182 found 6 days ago
Sat, Feb 7 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$184 Roundtrip, found 6 hours ago
$184
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Feb 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $184 found 6 hours ago
Wed, Feb 4 - Sat, Feb 7
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$192 Roundtrip, found 6 hours ago
$192
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Feb 4 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, Feb 7, priced at $192 found 6 hours ago
Wed, Feb 4 - Wed, Feb 11
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$194 Roundtrip, found 6 hours ago
$194
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Feb 4 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Wed, Feb 11, priced at $194 found 6 hours ago
Wed, Feb 4 - Sat, Feb 7
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$207 Roundtrip, found 6 hours ago
$207
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Feb 4 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sat, Feb 7, priced at $207 found 6 hours ago
Wed, Feb 18 - Wed, Feb 25
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$211 Roundtrip, found 16 hours ago
$211
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Feb 18 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Wed, Feb 25, priced at $211 found 16 hours ago
Wed, Feb 18 - Wed, Feb 25
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$215 Roundtrip, found 16 hours ago
$215
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Feb 18 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Wed, Feb 25, priced at $215 found 16 hours ago
Thu, Feb 5 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$220 Roundtrip, found 6 hours ago
$220
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Feb 5 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $220 found 6 hours ago
Sat, Feb 7 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$226 Roundtrip, found 6 hours ago
$226
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Feb 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $226 found 6 hours ago
Wed, Dec 31 - Wed, Jan 14
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 31 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Wed, Jan 14, priced at $234 found 3 days ago
Thu, Feb 5 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$239 Roundtrip, found 6 hours ago
$239
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Feb 5 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $239 found 6 hours ago
Thu, Jan 22 - Mon, Jan 26
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$242 Roundtrip, found 6 days ago
$242
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jan 22 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jan 26, priced at $242 found 6 days ago
Sat, Feb 7 - Thu, Feb 12
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$246 Roundtrip, found 6 hours ago
$246
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Feb 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Thu, Feb 12, priced at $246 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.