Cheap Flights From Washington Dulles Intl. (IAD) To San Diego Intl. (SAN)

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Cheapest Flights from Washington (IAD) to San Diego (SAN)

The cheapest flights to San Diego Intl. found within the past 7 days were CA $337 round trip and CA $196 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Sep. 27 - Sat, Oct. 4
IAD
Washington
SAN
San Diego
CA $337 Roundtrip, found 23 hours ago
CA $337
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Sep. 27 from Washington to San Diego, returning Sat, Oct. 4, priced at CA $337 found 23 hours ago
Wed, Oct. 8 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $343 Roundtrip, found 20 hours ago
CA $343
Roundtrip
found 20 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct. 8 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $343 found 20 hours ago
Sat, Oct. 11 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $349 Roundtrip, found 20 hours ago
CA $349
Roundtrip
found 20 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct. 11 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $349 found 20 hours ago
Sat, Oct. 11 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $364 Roundtrip, found 20 hours ago
CA $364
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Oct. 11 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $364 found 20 hours ago
Sat, Oct. 11 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $376 Roundtrip, found 20 hours ago
CA $376
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, Oct. 11 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $376 found 20 hours ago
Tue, Oct. 14 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $378 Roundtrip, found 20 hours ago
CA $378
Roundtrip
found 20 hours ago
Select Hawaiian Airlines flight, departing Tue, Oct. 14 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $378 found 20 hours ago
Wed, Nov. 5 - Sun, Nov. 9
IAD
Washington
SAN
San Diego
CA $385 Roundtrip, just found
CA $385
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Nov. 5 from Washington to San Diego, returning Sun, Nov. 9, priced at CA $385 just found
Wed, Oct. 8 - Tue, Oct. 14
IAD
Washington
SAN
San Diego
CA $385 Roundtrip, found 20 hours ago
CA $385
Roundtrip
found 20 hours ago
Select Delta flight, departing Wed, Oct. 8 from Washington to San Diego, returning Tue, Oct. 14, priced at CA $385 found 20 hours ago
Sat, Oct. 11 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $390 Roundtrip, found 20 hours ago
CA $390
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 11 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $390 found 20 hours ago
Sat, Oct. 11 - Wed, Oct. 15
IAD
Washington
SAN
San Diego
CA $391 Roundtrip, found 20 hours ago
CA $391
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Oct. 11 from Washington to San Diego, returning Wed, Oct. 15, priced at CA $391 found 20 hours ago

Frequently asked questions

Are there direct flights from Washington Dulles Intl. Airport (IAD) to San Diego Airport?
If you're not a big fan of layovers, it's a smart idea to lock in your flight from Dulles Intl. Airport to San Diego Airport well ahead of time. United Airlines is the only carrier that offers direct flights to San Diego County from Sterling.
What airlines fly from Dulles Intl. Airport to San Diego Airport?
Want to fly directly from Sterling to San Diego County? You're in luck. United Airlines offers 60 flights every month and is a popular option with many seasoned travelers.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.