United Flight 4353 Deals & Information (2026/2027)

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United Flight 4353 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $221 and $224 for one-way flights to Buffalo Niagara Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 15 - Sun, May 17
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$221 Roundtrip, found 3 days ago
$221
Roundtrip
found 3 days ago
Select United flight, departing Fri, May 15 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 17, priced at $221 found 3 days ago
Thu, Jun 4 - Sun, Jun 7
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$231 Roundtrip, found 6 days ago
$231
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jun 4 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Jun 7, priced at $231 found 6 days ago
Wed, Apr 22 - Wed, May 13
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select United flight, departing Wed, Apr 22 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Wed, May 13, priced at $234 found 3 days ago
Fri, May 15 - Mon, May 18
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select United flight, departing Fri, May 15 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Mon, May 18, priced at $234 found 3 days ago
Tue, Oct 6 - Sun, Oct 11
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 6 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Oct 11, priced at $246 found 1 day ago
Sat, May 30 - Sun, May 31
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$249 Roundtrip, found 14 hours ago
$249
Roundtrip
found 14 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 31, priced at $249 found 14 hours ago
Wed, May 20 - Wed, May 27
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$251 Roundtrip, found 3 days ago
$251
Roundtrip
found 3 days ago
Select United flight, departing Wed, May 20 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Wed, May 27, priced at $251 found 3 days ago
Sat, May 30 - Sun, May 31
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$260 Roundtrip, found 14 hours ago
$260
Roundtrip
found 14 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 31, priced at $260 found 14 hours ago
Wed, Apr 22 - Tue, May 12
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$264 Roundtrip, found 3 days ago
$264
Roundtrip
found 3 days ago
Select United flight, departing Wed, Apr 22 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, May 12, priced at $264 found 3 days ago
Thu, Jun 4 - Sun, Jun 7
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$268 Roundtrip, found 6 days ago
$268
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jun 4 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Jun 7, priced at $268 found 6 days ago
Fri, Jun 12 - Sun, Jun 14
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$277 Roundtrip, found 17 hours ago
$277
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Jun 12 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Jun 14, priced at $277 found 17 hours ago
Sat, May 30 - Sun, May 31
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$289 Roundtrip, found 14 hours ago
$289
Roundtrip
found 14 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 31, priced at $289 found 14 hours ago
Fri, May 22 - Sun, May 24
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$295 Roundtrip, found 14 hours ago
$295
Roundtrip
found 14 hours ago
Select United flight, departing Fri, May 22 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 24, priced at $295 found 14 hours ago
Wed, Apr 1 - Sat, Apr 4
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$349 Roundtrip, found 13 hours ago
$349
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Apr 1 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sat, Apr 4, priced at $349 found 13 hours ago
Thu, Mar 19 - Sun, Mar 22
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$451 Roundtrip, found 1 hour ago
$451
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Mar 19 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Mar 22, priced at $451 found 1 hour ago
Thu, Mar 19 - Sun, Mar 22
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$461 Roundtrip, found 1 hour ago
$461
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Mar 19 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Mar 22, priced at $461 found 1 hour ago
Thu, Mar 19 - Sun, Mar 22
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$487 Roundtrip, found 1 hour ago
$487
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Mar 19 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Mar 22, priced at $487 found 1 hour ago
Thu, Mar 19 - Sun, Mar 22
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$490 Roundtrip, found 1 hour ago
$490
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Mar 19 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Mar 22, priced at $490 found 1 hour ago

Frequently asked questions

What route does flight number UA4353 take?
UA4353 is used on multiple routes, but the most common is between COD and Denver Intl. Airport (DEN). If you're lucky enough to score a direct flight, you'll touch down in roughly 1 hour and 33 minutes. Multi-stop flights can also operate under this number, as can flights on other routes.
What kind of plane is on flight number UA4353?
UA4353 is a flight number that's used on a number of different routes. If you're traveling on its most popular route, Yellowstone Regional Airport (COD) to DEN, there's every chance you'll be hopping aboard an Embraer ERJ.
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 UA4353 flight with Travelocity, please visit our Customer Service Portal.