United Flight UA2351 Deals & Information (2025/2026)

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United Flight 2351 Route Deals From $139

The cheapest prices found with in the last 7 days for return flights were $237 and $139 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 3 - Tue, Dec 9
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 3 from San Francisco Intl. to Washington Dulles Intl., returning Tue, Dec 9, priced at $237 found 2 days ago
Fri, Nov 14 - Sat, Nov 15
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$256 Roundtrip, found 2 hours ago
$256
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Nov 14 from San Francisco Intl. to Washington Dulles Intl., returning Sat, Nov 15, priced at $256 found 2 hours ago
Fri, Dec 12 - Sun, Dec 14
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$277 Roundtrip, found 23 hours ago
$277
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Dec 12 from San Francisco Intl. to Washington Dulles Intl., returning Sun, Dec 14, priced at $277 found 23 hours ago
Thu, Nov 27 - Wed, Dec 3
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$290 Roundtrip, found 7 hours ago
$290
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Nov 27 from San Francisco Intl. to Washington Dulles Intl., returning Wed, Dec 3, priced at $290 found 7 hours ago
Tue, Nov 4 - Sat, Nov 8
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$292 Roundtrip, found 3 hours ago
$292
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Nov 4 from San Francisco Intl. to Washington Dulles Intl., returning Sat, Nov 8, priced at $292 found 3 hours ago
Fri, Dec 12 - Sun, Dec 14
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$299 Roundtrip, found 23 hours ago
$299
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Dec 12 from San Francisco Intl. to Washington Dulles Intl., returning Sun, Dec 14, priced at $299 found 23 hours ago
Fri, Dec 12 - Sun, Dec 14
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$300 Roundtrip, found 23 hours ago
$300
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Dec 12 from San Francisco Intl. to Washington Dulles Intl., returning Sun, Dec 14, priced at $300 found 23 hours ago
Fri, Nov 7 - Sat, Nov 8
SFO
San Francisco Intl.
IAD
Washington Dulles Intl.
$300 Roundtrip, found 2 hours ago
$300
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Nov 7 from San Francisco Intl. to Washington Dulles Intl., returning Sat, Nov 8, priced at $300 found 2 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.