CA $163 Cheap Flights from Washington (IAD) to San Diego (SAN)

Popular airlines from Washington Dulles International Airport (IAD) to San Diego Intl. Airport (SAN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards

Cheap flights from Washington (IAD) to San Diego (SAN)

Prices were available within the past 7 days and start at CA $163 for one-way flights and CA $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Alaska Airlines
American Airlines
American Airlines
Alaska Airlines
Delta
American Airlines
Delta
Delta
United

Find the cheapest month to fly from Washington (IAD) to San Diego (SAN)

September is typically the cheapest month to fly

From CA $217 - CA $356 per traveller.

Graph displaying average flight prices per month

Flight from Washington to San Diego (IAD - SAN) route information
Origin airport
Washington Dulles Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $269
Distance
3598 km
Average flight time
2 hours 21 mins

Chantilly to San Diego Flights

The easy way to book your flights from Washington to San Diego 

With Expedia, it’s simple to find and book flights to San Diego from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are American Airlines, Qatar Airways, Alaska Airlines, Austrian, Hawaiian Airlines, Brussels Airlines, United Airlines, Ethiopian Airlines nonstop flights to San Diego Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to San Diego today, tomorrow, or this week.  

 

Save dollars with cheap flights from Washington Dulles Intl., IAD to San Diego Intl., SAN 

Sort your search results by price to find great deals on your flight from Washington to San Diego—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Diego from Washington currently is just CA $269 rising to CA $459.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to San Diego  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to San Diego from Washington 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Diego with Expedia today.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to SAN?
If you're planning on travelling from Washington Dulles Intl. Airport (IAD) to San Diego Airport, round-trip journeys start from CA $269. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to San Diego Intl. Airport (SAN)?
When it comes to cancellation fees, each airline has a different set of terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.
How do I find cheap flights from IAD to San Diego Intl. Airport (SAN) that have flexible change policies?
Plenty of carriers will allow you to reschedule your flight without a change fee. All you pay is the difference in the ticket price. When looking for Dulles Intl. Airport to San Diego Airport flights, you'll see a "No change fees" filter for you to select.
How many hours is the flight from IAD to San Diego Airport?
The flight time from Dulles Intl. Airport to San Diego Intl. Airport (SAN) is approximately 5 hours and 43 minutes. Put your earphones in, listen to a good podcast and the hours will whiz by.
How far is the flight from Dulles Intl. Airport to SAN?
It's around 3,600 kilometres from Dulles Intl. Airport to SAN, so expect to be in your seat for a while. Keep yourself occupied with things like crossword puzzles or a thrilling novel.
Which airlines fly direct from Dulles Intl. Airport to San Diego Intl. Airport (SAN)?
United Airlines (UA) is one of the top choices for many travellers flying between IAD and San Diego Intl. Airport (SAN). Choose from the 91 flights it operates on this route each month. Offering 30 flights per month on this route, Alaska Airlines (AS) is another top pick.
Are IAD to San Diego Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some of the cheapest fares from Dulles Intl. Airport to SAN appearing a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices that far in advance.

Explore a world of travel with Expedia

*Available to Expedia members.