United Flight 4236 Deals & Information (2026/2027)

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United Flight 4236 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $226 and $234 for one-way flights to Buffalo Niagara Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 30 - Tue, Jun 2
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$226 Roundtrip, found 2 hours ago
$226
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, Jun 2, priced at $226 found 2 hours ago
Sat, May 30 - Tue, Jun 2
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$236 Roundtrip, found 2 hours ago
$236
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, Jun 2, priced at $236 found 2 hours ago
Sat, May 30 - Sun, May 31
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$243 Roundtrip, found 2 hours ago
$243
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 31, priced at $243 found 2 hours ago
Thu, Jul 30 - Sat, Aug 1
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$254 Roundtrip, found 5 days ago
$254
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jul 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sat, Aug 1, priced at $254 found 5 days ago
Fri, Apr 10 - Sun, Apr 12
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$265 Roundtrip, found 3 days ago
$265
Roundtrip
found 3 days ago
Select United flight, departing Fri, Apr 10 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Apr 12, priced at $265 found 3 days ago
Fri, May 22 - Sun, May 24
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$283 Roundtrip, found 10 hours ago
$283
Roundtrip
found 10 hours ago
Select United flight, departing Fri, May 22 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, May 24, priced at $283 found 10 hours ago
Thu, Jun 11 - Mon, Jun 15
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$288 Roundtrip, found 6 days ago
$288
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jun 11 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Mon, Jun 15, priced at $288 found 6 days ago
Thu, Aug 20 - Sat, Aug 22
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$293 Roundtrip, found 2 days ago
$293
Roundtrip
found 2 days ago
Select United flight, departing Thu, Aug 20 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sat, Aug 22, priced at $293 found 2 days ago
Wed, Apr 8 - Sun, Apr 12
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$295 Roundtrip, found 3 days ago
$295
Roundtrip
found 3 days ago
Select United flight, departing Wed, Apr 8 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Sun, Apr 12, priced at $295 found 3 days ago
Thu, Apr 2 - Tue, Apr 7
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$297 Roundtrip, found 2 days ago
$297
Roundtrip
found 2 days ago
Select United flight, departing Thu, Apr 2 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, Apr 7, priced at $297 found 2 days ago
Sat, May 30 - Tue, Jun 2
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$297 Roundtrip, found 2 hours ago
$297
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, Jun 2, priced at $297 found 2 hours ago
Sat, May 30 - Tue, Jun 2
IAD
Washington Dulles Intl.
BUF
Buffalo Niagara Intl.
$298 Roundtrip, found 2 hours ago
$298
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 30 from Washington Dulles Intl. to Buffalo Niagara Intl., returning Tue, Jun 2, priced at $298 found 2 hours ago