United Flight 2351 Deals & Information (2025/2026)

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United Flight 2351 Route Deals From $143

The cheapest prices found with in the last 7 days for return flights were $236 and $143 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Wed, Dec 10
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$236 Roundtrip, found 1 hour ago
$236
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Dec 7 from San Francisco Intl. to Washington Dulles Intl., returning Wed, Dec 10, priced at $236 found 1 hour ago
Fri, Oct 17 - Tue, Oct 21
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$239 Roundtrip, found 23 hours ago
$239
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Oct 17 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Oct 21, priced at $239 found 23 hours ago
Wed, Oct 8 - Wed, Oct 15
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$241 Roundtrip, found 1 day ago
$241
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 8 from San Francisco Intl. to Washington Dulles Intl., returning Wed, Oct 15, priced at $241 found 1 day ago
Wed, Oct 22 - Tue, Nov 4
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 22 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Nov 4, priced at $258 found 2 days ago
Mon, Nov 10 - Tue, Nov 18
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$259 Roundtrip, found 22 hours ago
$259
Roundtrip
found 22 hours ago
Select United flight, departing Mon, Nov 10 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Nov 18, priced at $259 found 22 hours ago
Mon, Nov 10 - Tue, Nov 18
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$261 Roundtrip, found 22 hours ago
$261
Roundtrip
found 22 hours ago
Select United flight, departing Mon, Nov 10 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Nov 18, priced at $261 found 22 hours ago
Wed, Oct 8 - Wed, Oct 15
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 8 from San Francisco Intl. to Washington Dulles Intl., returning Wed, Oct 15, priced at $271 found 1 day ago

Frequently asked questions

What route does flight number UA2351 take?
UA2351 operates between SBA and DIA airport directly. This service typically takes 2 hours and 24 minutes.
What kind of plane is on flight number UA2351?
You're likely to be traveling aboard an Airbus A319 if you're on flight number UA2351. This flight nearly always jets off from Santa Barbara, CA Airport (SBA-Santa Barbara Municipal) and touches down at Denver Intl. Airport (DEN).
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 UA2351 flight with Travelocity, please visit our Customer Service Portal.