$139 Cheap Delta flights San Diego (SAN) to Washington (IAD)

View $139 flight on Thu, Jan 8, 2026Opens in a new window

$139 Cheap Delta flights San Diego (SAN) to Washington (IAD)

Prices were available within the past 7 days and start at $139 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$267 Roundtrip, found 1 day ago
$267
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $267 found 1 day ago
Delta
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$367 Roundtrip, found 1 day ago
$367
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $367 found 1 day ago

Find the cheapest month to fly from San Diego (SAN) to Washington (IAD)

September is typically the cheapest month to fly

From $174 - $317 per traveler.
Flights from San Diego (SAN) to Washington (IAD)
Origin airport
San Diego Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Popular airline
Delta
Distance
3598 km
Average flight time
8 hours 31 mins