United Flight 4291 Deals & Information (2025/2026)

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United Flight 4291 Route Deals From $92

The cheapest prices found with in the last 7 days for return flights were $137 and $92 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 11 - Tue, Sep 16
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 11 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Tue, Sep 16, priced at $137 found 1 day ago
Thu, Aug 7 - Sun, Aug 10
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$161 Roundtrip, found 23 hours ago
$161
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Aug 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Aug 10, priced at $161 found 23 hours ago
Thu, Jul 17 - Mon, Jul 21
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$183 Roundtrip, found 2 days ago
$183
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 17 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jul 21, priced at $183 found 2 days ago
Tue, Jun 24 - Mon, Jul 7
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$187 Roundtrip, found 6 days ago
$187
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jun 24 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jul 7, priced at $187 found 6 days ago
Fri, Jul 4 - Mon, Jul 7
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$188 Roundtrip, found 1 hour ago
$188
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 4 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jul 7, priced at $188 found 1 hour ago
Mon, Nov 17 - Wed, Dec 3
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 17 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Wed, Dec 3, priced at $190 found 1 day ago
Fri, Jun 27 - Mon, Jun 30
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 27 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jun 30, priced at $193 found 5 days ago
Thu, Sep 11 - Tue, Sep 16
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 11 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Tue, Sep 16, priced at $197 found 1 day ago
Thu, Aug 7 - Sun, Aug 10
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$198 Roundtrip, found 23 hours ago
$198
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Aug 7 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Sun, Aug 10, priced at $198 found 23 hours ago
Fri, Jun 27 - Mon, Jun 30
BUF
Buffalo Niagara Intl.
IAD
Washington Dulles Intl.
$201 Roundtrip, found 5 days ago
$201
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 27 from Buffalo Niagara Intl. to Washington Dulles Intl., returning Mon, Jun 30, priced at $201 found 5 days 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.