$149 Cheap Alaska Airlines flights San Diego (SAN) to Washington (IAD)

View $149 flight on Thu, Jan 8, 2026Opens in a new window

$149 Cheap Alaska Airlines flights San Diego (SAN) to Washington (IAD)

Prices were available within the past 7 days and start at $149 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $237 found 1 day ago
Alaska Airlines
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$337 Roundtrip, found 1 day ago
$337
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $337 found 1 day ago
Alaska Airlines
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$387 Roundtrip, found 1 day ago
$387
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $387 found 1 day ago
Alaska Airlines
Thu, Jan 8 - Wed, Jan 21
SAN
San Diego
IAD
Washington
$427 Roundtrip, found 1 day ago
$427
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jan 8 from San Diego to Washington, returning Wed, Jan 21, priced at $427 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
United
Distance
3598 km
Average flight time
8 hours 31 mins