Cheap Flights from Washington, D.C. to San Diego
No deal from Washington, D.C. to San Diego has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Washington, D.C. to San Diego, the lowest round-trip fare we recorded was $180, in August. The typical fare was $317. August was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $349 on Frontier, seen Oct 17. It is an unverified observation and may have changed.
See every deal <a href="/from/washington-dc">from Washington, D.C.</a>, <a href="/to/san-diego">to San Diego</a>, or the return direction <a href="/from/san-diego/to/washington-dc">San Diego to Washington, D.C.</a>.
Latest price we saw: Washington, D.C. to San Diego
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Washington, D.C. (DCA) to San Diego (SAN) | $349 | 7.7¢ | Nov 7 – Nov 13 | Frontier | Oct 17 | Check price |
Price history: Washington, D.C. to San Diego
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $210 | $380 | 130 |
| Sep 2026 | $210 | $285 | 92 |
| Aug 2026 | $180 | $286 | 88 |
Frequently asked questions
How many flight deals from Washington, D.C. to San Diego are on Sparkflights right now?
There are 0 verified deals from Washington, D.C. to San Diego on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Washington, D.C. to San Diego?
The lowest fare we've recorded from Washington, D.C. to San Diego is $180, based on 310 price observations over 3 months.
How much does a flight from Washington, D.C. to San Diego cost?
The typical round-trip fare we observed from Washington, D.C. to San Diego is $317, against a recorded low of $180. These are observations, not quotes.
When is the cheapest month to fly Washington, D.C. to San Diego?
August was the cheapest month we observed from Washington, D.C. to San Diego and September the dearest, over 3 months of data.
What is the current price from Washington, D.C. to San Diego?
The most recent fare our sweep saw from Washington, D.C. to San Diego is $349, on Oct 17. It is an unverified observation rather than a verified deal, so check it before booking.