Nonstop flights from Washington to San Diego

3 airlines fly from 3 Washington airports (IAD, BWI and DCA) to San Diego (SAN), with up to 8 flights a day.

IADSAN

Routes

3 airport pairs

When they leave

Washington time

8:55a8:30pFirst departure 8:55 AM, last 8:30 PM

Three in the morning, 8:55 AM to 10:59 AM, then two in the afternoon, 12:35 PM to 2:00 PM, then three in the evening, 6:00 PM to 8:30 PM.

Every flight

Earliest first

8:55 AM→11:17 AMIAD to SANUnited AirlinesBoeing 737Daily
9:45 AM→12:00 PMBWI to SANSouthwest AirlinesBoeing 737-700Daily
10:59 AM→1:37 PMDCA to SANAlaska AirlinesBoeing 737-800Daily
12:35 PM→2:57 PMIAD to SANUnited AirlinesBoeing 737 MAX 9Daily
2:00 PM→4:15 PMBWI to SANSouthwest AirlinesBoeing 737Daily
6:00 PM→8:29 PMIAD to SANUnited AirlinesBoeing 737 MAX 9Daily
7:35 PM→9:59 PMIAD to SANAlaska AirlinesBoeing 737 MAX 9Daily
8:30 PM→10:45 PMBWI to SANSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sat

Schedules last checked Sep 21, 2026. Times are local.

Flying from Washington to San Diego

United Airlines flies most often, 3 times a day on the Boeing 737 MAX 9 and Boeing 737. Southwest Airlines flies 2 to 3 times a day on the Boeing 737 and Boeing 737-700. Alaska Airlines flies twice a day on the Boeing 737 MAX 9 and Boeing 737-800.

There are 7 or 8 flights every day of the week. The first arrival in San Diego is at 11:17 AM and the last at 10:45 PM.

IAD to SAN is the busiest airport pair, with 28 flights a week, then BWI to SAN with 20 and DCA to SAN with 7.

Flying back, San Diego to Washington has 59 nonstop flights a week.

Return flights

San Diego to WashingtonView

Find the cheapest day to fly from Washington to San Diego.

Schedules as of Oct 9, 2026.