Washington (DCA) to San Diego (SAN) cheap flight deal from $139 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

One Way•Economy

Ronald Reagan Washington National Airport

Washington, United States

San Diego International Airport

San Diego, United States

$198 USD

-30%$139 USD

Verified Sep 21, 2025 at 3:33 PM

October 2025

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29$329 30$329 1$329 2$329 3$329 4$302 5$249 6$217 7$217 8$217 9$237 10$332 11$197 12$204 13$222 14$139 15$139 16$159 17$159 18$139 19$204 20$159 21$139 22$139 23$159 24$159 25$139 26$235 27$159 28$139 29$139 30$159 31$159 1 2

Limited Availability

17% of dates checked are available within 10% of the lowest price

Sunday, October 26th, 2025

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