United Flight UA2129 Deals & Information (2025/2026)

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United Flight 2129 Route Deals From $143

The cheapest prices found with in the last 7 days for return flights were $239 and $143 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 27 - Sat, Aug 30
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$239 Roundtrip, found 6 days ago
$239
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 27 from San Diego Intl. to Washington Dulles Intl., returning Sat, Aug 30, priced at $239 found 6 days ago
Wed, Aug 27 - Sat, Aug 30
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 27 from San Diego Intl. to Washington Dulles Intl., returning Sat, Aug 30, priced at $249 found 6 days ago
Fri, Nov 14 - Wed, Nov 19
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 14 from San Diego Intl. to Washington Dulles Intl., returning Wed, Nov 19, priced at $263 found 1 day ago
Wed, Aug 27 - Sat, Aug 30
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$281 Roundtrip, found 6 days ago
$281
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 27 from San Diego Intl. to Washington Dulles Intl., returning Sat, Aug 30, priced at $281 found 6 days ago
Fri, Nov 14 - Wed, Nov 19
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 14 from San Diego Intl. to Washington Dulles Intl., returning Wed, Nov 19, priced at $284 found 1 day ago