United Flight 2129 Deals & Information (2025/2026)

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United Flight 2129 Route Deals From $153

The cheapest prices found with in the last 7 days for return flights were $237 and $153 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $237 found 2 days ago
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $240 found 2 days ago
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$250 Roundtrip, found 2 days ago
$250
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $250 found 2 days ago
Thu, Feb 12 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$260 Roundtrip, found 1 day ago
$260
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $260 found 1 day ago
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$272 Roundtrip, found 2 days ago
$272
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $272 found 2 days ago
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$274 Roundtrip, found 2 days ago
$274
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $274 found 2 days ago
Thu, Feb 12 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $280 found 1 day ago
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 10 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $280 found 2 days ago
Fri, Feb 27 - Sun, Mar 1
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 27 from San Diego Intl. to Washington Dulles Intl., returning Sun, Mar 1, priced at $281 found 3 days ago
Thu, Feb 26 - Sat, Feb 28
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$285 Roundtrip, found 4 days ago
$285
Roundtrip
found 4 days ago
Select United flight, departing Thu, Feb 26 from San Diego Intl. to Washington Dulles Intl., returning Sat, Feb 28, priced at $285 found 4 days ago
Thu, Feb 26 - Sat, Feb 28
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$286 Roundtrip, found 4 days ago
$286
Roundtrip
found 4 days ago
Select United flight, departing Thu, Feb 26 from San Diego Intl. to Washington Dulles Intl., returning Sat, Feb 28, priced at $286 found 4 days ago
Thu, Feb 12 - Tue, Feb 17
SAN
San Diego Intl.
IAD
Washington Dulles Intl.
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from San Diego Intl. to Washington Dulles Intl., returning Tue, Feb 17, priced at $287 found 1 day ago