United Flight UA2351 Deals & Information (2025/2026)

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United Flight 2351 Route Deals From $141

The cheapest prices found with in the last 7 days for return flights were $242 and $141 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 15 - Sat, Oct 18
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$242 Roundtrip, found 17 hours ago
$242
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 15 from San Francisco Intl. to Washington Dulles Intl., returning Sat, Oct 18, priced at $242 found 17 hours ago
Sat, Dec 6 - Sat, Dec 13
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 6 from San Francisco Intl. to Washington Dulles Intl., returning Sat, Dec 13, priced at $277 found 3 days ago
Wed, Oct 1 - Fri, Oct 10
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$279 Roundtrip, found 7 hours ago
$279
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 1 from San Francisco Intl. to Washington Dulles Intl., returning Fri, Oct 10, priced at $279 found 7 hours ago
Thu, Oct 2 - Sun, Oct 5
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$283 Roundtrip, found 3 hours ago
$283
Roundtrip
found 3 hours ago
Select United flight, departing Thu, Oct 2 from San Francisco Intl. to Washington Dulles Intl., returning Sun, Oct 5, priced at $283 found 3 hours ago
Fri, Oct 17 - Tue, Oct 21
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$290 Roundtrip, found 17 hours ago
$290
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Oct 17 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Oct 21, priced at $290 found 17 hours ago
Fri, Oct 17 - Tue, Oct 21
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$292 Roundtrip, found 17 hours ago
$292
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Oct 17 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Oct 21, priced at $292 found 17 hours ago
Thu, Oct 2 - Thu, Oct 9
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$301 Roundtrip, found 7 hours ago
$301
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 2 from San Francisco Intl. to Washington Dulles Intl., returning Thu, Oct 9, priced at $301 found 7 hours 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.