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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
$248
American Airlines
• 1 stop
• 17h 15m
Oct 28 – Oct 31
The cheapest round trip flight from Washington to San Diego (IAD-SAN-IAD) is currently $248
Cheapest One way Flight
$141
United Airlines
• 1 stop
• 15h 12m
Oct 25
The cheapest one way flight from Washington to San Diego (IAD-SAN) is currently $141
Cheapest Direct Flight
$292
United Airlines
• nonstop
• 9h 3m
Oct 28
The cheapest nonstop flight from Washington to San Diego (IAD-SAN) is currently $292
Fastest Flight
8h 55m
The fastest nonstop flight from Washington to San Diego (IAD-SAN) takes 8h 55m
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.
Oct 28 - Oct 31, Economy
Washington → San Diego
17h 15m
6:42 AM - 2:17 PM • 1 stop
Washington → San Diego
12h 23m
12:40 PM - 11:23 PM • 1 stop
American Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
9h 3m
12:45 PM - 3:28 PM • nonstop
Washington → San Diego
10h 3m
2:08 PM - 12:30 AM • 1 stop
United Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
13h 36m
6:11 AM - 11:27 AM • 1 stop
Washington → San Diego
7h 22m
9:45 PM - 4:27 AM • nonstop
United Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
13h 38m
7:00 AM - 12:18 PM • 1 stop
Washington → San Diego
11h 40m
6:00 AM - 4:00 PM • 1 stop
American Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
12h 6m
4:10 PM - 8:36 PM • 1 stop
Washington → San Diego
11h 51m
1:04 PM - 11:15 PM • 1 stop
United Airlines
Explore competitive one-way airfare options for IAD - SAN flights. Best suited for flexible or open-ended travel plans.
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.
Oct 28 - Oct 31, Economy
Washington → San Diego
17h 15m
6:42 AM - 2:17 PM • 1 stop
Washington → San Diego
12h 23m
12:40 PM - 11:23 PM • 1 stop
American Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
9h 3m
12:45 PM - 3:28 PM • nonstop
Washington → San Diego
10h 3m
2:08 PM - 12:30 AM • 1 stop
United Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
13h 36m
6:11 AM - 11:27 AM • 1 stop
Washington → San Diego
7h 22m
9:45 PM - 4:27 AM • nonstop
United Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
13h 38m
7:00 AM - 12:18 PM • 1 stop
Washington → San Diego
11h 40m
6:00 AM - 4:00 PM • 1 stop
American Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
12h 6m
4:10 PM - 8:36 PM • 1 stop
Washington → San Diego
11h 51m
1:04 PM - 11:15 PM • 1 stop
United 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.
Oct 28 - Oct 31, Economy
Washington → San Diego
9h 3m
5:50 PM - 8:33 PM • nonstop
Washington → San Diego
7h 22m
9:45 PM - 4:27 AM • nonstop
United Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
11h 55m
5:25 PM - 9:40 PM • nonstop
Washington → San Diego
7h 35m
9:50 PM - 4:45 AM • nonstop
Southwest Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
13h 50m
8:20 AM - 1:50 PM • nonstop
Washington → San Diego
7h 35m
9:50 PM - 4:45 AM • nonstop
Southwest Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
30h 52m
7:24 PM - 9:53 PM • nonstop
Washington → San Diego
23h 38m
9:46 AM - 5:50 PM • nonstop
Alaska Airlines
Oct 28 - Oct 31, Economy
Washington → San Diego
8h 55m
10:10 AM - 12:45 PM • nonstop
Washington → San Diego
7h 35m
9:50 PM - 4:45 AM • nonstop
Southwest 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 6:11 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 UA : USD 141
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 7:24 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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