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 $417 round trip and CA $193 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Apr 30 - Sun, May 3
IAD
Washington
SAN
San Diego
CA $417 Roundtrip, found 5 days ago
CA $417
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Apr 30 from Washington to San Diego, returning Sun, May 3, priced at CA $417 found 5 days ago
Fri, Apr 24 - Sun, Apr 26
IAD
Washington
SAN
San Diego
CA $459 Roundtrip, found 6 days ago
CA $459
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from Washington to San Diego, returning Sun, Apr 26, priced at CA $459 found 6 days ago
Thu, Apr 30 - Sun, May 3
IAD
Washington
SAN
San Diego
CA $459 Roundtrip, found 5 days ago
CA $459
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Apr 30 from Washington to San Diego, returning Sun, May 3, priced at CA $459 found 5 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $463 Roundtrip, found 3 days ago
CA $463
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $463 found 3 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $489 Roundtrip, found 3 days ago
CA $489
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $489 found 3 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $509 Roundtrip, found 3 days ago
CA $509
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $509 found 3 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $545 Roundtrip, found 3 days ago
CA $545
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $545 found 3 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $567 Roundtrip, found 3 days ago
CA $567
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $567 found 3 days ago
Fri, Apr 24 - Sun, Apr 26
IAD
Washington
SAN
San Diego
CA $571 Roundtrip, found 6 days ago
CA $571
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from Washington to San Diego, returning Sun, Apr 26, priced at CA $571 found 6 days ago
Mon, Jul 20 - Tue, Jul 28
IAD
Washington
SAN
San Diego
CA $578 Roundtrip, found 3 days ago
CA $578
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jul 20 from Washington to San Diego, returning Tue, Jul 28, priced at CA $578 found 3 days 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.

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*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.