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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
$179
United Airlines
• 1 stop
• 13h 39m
Nov 18 – Nov 21
The cheapest round trip flight from Washington to San Diego (IAD-SAN-IAD) is currently $179
Cheapest One way Flight
$417
Alaska Airlines
• 2 stops
• 34h 12m
Sep 17
The cheapest one way flight from Washington to San Diego (IAD-SAN) is currently $417
Cheapest Direct Flight
$145
Alaska Airlines
• nonstop
• 9h 1m
Nov 18
The cheapest nonstop flight from Washington to San Diego (IAD-SAN) is currently $145
Fastest Flight
9h 1m
The fastest nonstop flight from Washington to San Diego (IAD-SAN) takes 9h 1m
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.
Nov 18 - Nov 21, Economy
Washington → San Diego
13h 39m
1:15 PM - 6:34 PM • 1 stop
Washington → San Diego
11h 59m
10:30 PM - 8:49 AM • 1 stop
United Airlines
Nov 18 - Nov 21, Economy
Washington → San Diego
30h 52m
8:05 AM - 11:57 PM • 2 stops
Washington → San Diego
29h 11m
8:19 AM - 5:10 AM • 1 stop
Frontier Airlines
Nov 18 - Nov 18, Economy
Washington → San Diego
13h 36m
6:11 AM - 11:27 AM • 1 stop
Washington → San Diego
12h 29m
6:30 PM - 5:19 AM • 1 stop
United Airlines
Nov 18 - Nov 18, Economy
Washington → San Diego
12h 15m
12:40 PM - 5:15 PM • 1 stop
Washington → San Diego
11h 59m
10:30 PM - 8:49 AM • 1 stop
United Airlines
Nov 18 - Nov 18, Economy
Washington → San Diego
12h 37m
10:15 AM - 3:12 PM • 1 stop
Washington → San Diego
11h 59m
10:30 PM - 8:49 AM • 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.
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.
Nov 18 - Nov 21, Economy
Washington → San Diego
9h 1m
6:46 PM - 9:27 PM • nonstop
Washington → San Diego
7h 34m
1:06 PM - 9:00 PM • nonstop
Alaska Airlines
Nov 18 - Nov 21, Economy
Washington → San Diego
9h 3m
5:50 PM - 8:33 PM • nonstop
Washington → San Diego
7h 22m
9:45 PM - 5:27 AM • nonstop
United Airlines
Nov 18 - Nov 21, Economy
Washington → San Diego
9h 3m
12:45 PM - 3:28 PM • nonstop
Washington → San Diego
7h 22m
9:45 PM - 5:27 AM • nonstop
United Airlines
Nov 18 - Nov 21, Economy
Washington → San Diego
9h 6m
9:00 AM - 11:46 AM • nonstop
Washington → San Diego
7h 22m
9:45 PM - 5:27 AM • nonstop
United Airlines
Nov 18 - Nov 21, Economy
Washington → San Diego
9h 1m
6:46 PM - 9:27 PM • nonstop
Washington → San Diego
7h 22m
9:45 PM - 5:27 AM • nonstop
American 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 AS : USD 429
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 6:46 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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