Cheap flights from Washington D.C. to San Diego (IAD to SAN) from $582
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Discover deals on Washington D.C. to San Diego flights
Typical range $582–$882•Cheapest found $582
Updated recentlyFind cheap flights from Washington D.C. to San Diego
Tips for flying from Washington D.C. to San Diego
Book at the right time: For domestic routes like Washington D.C. to San Diego, the sweet spot is 3–5 weeks before departure. Booking too early can mean missing seat sales; too late means paying peak prices.
Shift your dates by a day or two: Mid-week departures (Tuesday–Wednesday) are almost always cheaper than weekend flights. Even shifting by one day can make a meaningful difference.
Search in private browsing: Some booking sites use cookies to track repeat searches and may show higher prices after multiple lookups. Use an incognito or private window — or just use Booked AI, which pulls live prices without any tracking markup.
Washington D.C. to San Diego flight summary
The cheapest flights from Washington D.C. to San Diego start from $582, with typical prices ranging from $582 to $1,454.
Frequently asked questions
The cheapest flight from Washington D.C. to San Diego currently costs AUD $582. Prices typically range from $582 to $582. Prices change frequently, so we recommend booking early and being flexible with your travel dates.
Prices sourced via Duffel and updated regularly. All fares shown are indicative one-way prices in AUD and may vary at time of booking. Booked AI is an IATA-accredited travel platform.
