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Uncover the best deals on Washington to San Diego flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest IAD - SAN Flights
Useful information for finding best airline tickets from Washington Dulles International to San Diego International on your next trip.
Cheapest Round Trip Flight
$502
Delta Airlines
• 1 stop
• 12h 18m
Aug 05 – Aug 08
The cheapest round trip flight from Washington to San Diego (IAD-SAN-IAD) is currently $502
Cheapest Direct Flight
$917
United Airlines
• nonstop
• 8h 43m
Jul 14
The cheapest nonstop flight from Washington to San Diego (IAD-SAN) is currently $917
Fastest Flight
8h 43m
The fastest nonstop flight from Washington to San Diego (IAD-SAN) takes 8h 43m
Top Airlines Flying from Washington to San Diego
Latest Flight Deals from Washington (IAD) to San Diego (SAN)
Compare and book low fare round-trip air tickets from Washington to San Diego. Ideal for travelers with confirmed return itineraries.
Aug 05 - Aug 08, Economy
Washington → San Diego
12h 18m
6:00 AM - 10:38 AM • 1 stop
Washington → San Diego
11h 48m
7:43 AM - 5:51 PM • 1 stop
Delta Airlines
Aug 05 - Aug 08, Economy
Washington → San Diego
12h 12m
3:03 PM - 7:35 PM • 1 stop
Washington → San Diego
10h 58m
11:30 AM - 9:28 PM • 1 stop
Delta Airlines
Aug 05 - Aug 08, Economy
Washington → San Diego
11h 45m
8:28 AM - 12:33 PM • 1 stop
Washington → San Diego
10h 58m
11:30 AM - 9:28 PM • 1 stop
Delta Airlines
Aug 05 - Aug 08, Economy
Washington → San Diego
12h 15m
12:30 PM - 5:05 PM • 1 stop
Washington → San Diego
11h 48m
7:43 AM - 5:51 PM • 1 stop
Delta Airlines
Aug 05 - Aug 08, Economy
Washington → San Diego
11h 50m
6:10 AM - 10:20 AM • 1 stop
Washington → San Diego
10h 58m
11:30 AM - 9:28 PM • 1 stop
Delta Airlines
Flying to San Diego soon? We've surfaced some of the most affordable last-minute flights from Washington to San Diego, ideal for urgent plans or spontaneous trips.
Jul 14 - Jul 18, Economy
Washington → San Diego
12h 31m
12:50 PM - 5:41 PM • 1 stop
Washington → San Diego
8h 20m
9:59 PM - 5:59 AM • nonstop
United Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
18h 35m
6:03 AM - 2:18 PM • 1 stop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
Alaska Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
35h 47m
6:14 PM - 1:01 PM • 1 stop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
Alaska Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
28h 46m
9:30 AM - 11:56 PM • 1 stop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
Alaska Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
31h 49m
6:14 PM - 10:23 AM • 1 stop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
Alaska Airlines
Looking for the fastest way to San Diego? These direct flight options from IAD to SAN offer both convenience and value—no layovers, just straight to your destination.
Jul 14 - Jul 18, Economy
Washington → San Diego
8h 43m
6:00 PM - 8:23 PM • nonstop
Washington → San Diego
8h 28m
8:00 AM - 4:08 PM • nonstop
United Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
8h 43m
8:26 AM - 10:49 AM • nonstop
Washington → San Diego
8h 20m
9:59 PM - 5:59 AM • nonstop
United Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
8h 44m
7:53 PM - 10:17 PM • nonstop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
American Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
8h 44m
7:53 PM - 10:17 PM • nonstop
Washington → San Diego
8h 31m
10:46 AM - 6:57 PM • nonstop
Alaska Airlines
Jul 14 - Jul 18, Economy
Washington → San Diego
8h 43m
12:40 PM - 3:03 PM • nonstop
Washington → San Diego
8h 28m
12:57 PM - 9:05 PM • nonstop
United Airlines
FAQs on Washington to San Diego Flights
What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from IAD to SAN?
The most popular airline flying from Washington to San Diego are
Can I fly from IAD to SAN non-stop?
Yes, you can fly IAD to SAN non-stop on
Which airlines fly nonstop between Washington and San Diego?
The non-stop flights between Washington and San Diego are .
What’s the earliest departure time from IAD to SAN Airport?
The earliest flight leaves IAD at 6:00 am and lands in SAN - San Diego International
What are the airports in San Diego?
SAN
Can I make changes to my Washington to San Diego flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from IAD to SAN?
Read the fare rules of the Washington to San Diego air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and San Diego?
operate flights between Washington and San Diego
How long does a flight from Washington to San Diego take?
It takes approximately 5 hour to fly non-stop from IAD to SAN, which is 2253.07 miles by air.
Which airlines provide the cheapest flights from Washington (IAD) to San Diego (SAN) ?
In the past couple of days, the cheapest tickets to SAN from IAD were found on DL : USD 502
Do I need a passport to fly between IAD and SAN?
No
What’s the latest departure time from IAD to SAN ?
The last flight leaves IAD at 7:5300 pm
Washington (IAD) to San Diego (SAN): Airport Information
| Origin Airport | Washington Dulles International , Washington, US |
| Destination Airport | San Diego International , San Diego, US |
| Distance | 2253 miles |
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