United Flight 2129 Deals & Information (2025/2026)

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United Flight 2129 Route Deals From $163

The cheapest prices found with in the last 7 days for return flights were $247 and $163 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Feb 26 - Sat, Feb 28
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$247 Roundtrip, found 1 day ago
$247
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 26 from San Diego Intl. to Washington Dulles Intl., returning Sat, Feb 28, priced at $247 found 1 day ago
Thu, Feb 5 - Wed, Feb 11
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$264 Roundtrip, found 6 days ago
$264
Roundtrip
found 6 days ago
Select United flight, departing Thu, Feb 5 from San Diego Intl. to Washington Dulles Intl., returning Wed, Feb 11, priced at $264 found 6 days ago
Fri, Feb 27 - Sun, Mar 1
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$281 Roundtrip, found 1 day ago
$281
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from San Diego Intl. to Washington Dulles Intl., returning Sun, Mar 1, priced at $281 found 1 day ago
Fri, Jan 23 - Sun, Jan 25
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jan 23 from San Diego Intl. to Washington Dulles Intl., returning Sun, Jan 25, priced at $283 found 4 days ago
Thu, Feb 26 - Sat, Feb 28
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$285 Roundtrip, found 1 day ago
$285
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 26 from San Diego Intl. to Washington Dulles Intl., returning Sat, Feb 28, priced at $285 found 1 day ago
Thu, Feb 26 - Sat, Feb 28
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$286 Roundtrip, found 1 day ago
$286
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 26 from San Diego Intl. to Washington Dulles Intl., returning Sat, Feb 28, priced at $286 found 1 day ago
Fri, Feb 27 - Sun, Mar 1
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$291 Roundtrip, found 1 day ago
$291
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from San Diego Intl. to Washington Dulles Intl., returning Sun, Mar 1, priced at $291 found 1 day ago
Tue, May 12 - Mon, May 18
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$292 Roundtrip, found 1 day ago
$292
Roundtrip
found 1 day ago
Select United flight, departing Tue, May 12 from San Diego Intl. to Washington Dulles Intl., returning Mon, May 18, priced at $292 found 1 day ago