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Cheap flights from Washington to San Diego from $69

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to San Diego departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:35 pm - 5:15 pm
SEA
-
SAN
2h 40mnonstop
Southwest Logo
4:15 pm - 10:25 pm
SAN
-
SEA
6h 10m1 stop
$106Southwest
Sun, Mar 8 - Tue, Mar 10
Frontier Logo
12:34 pm - 12:08 am
SEA
-
SAN
11h 34m1 stop
Frontier Logo
7:00 am - 11:19 am
SAN
-
SEA
28h 19m1 stop
$107Frontier
Fri, Jan 30 - Wed, Feb 4
Hawaiian Airlines Logo
8:21 pm - 11:09 pm
SEA
-
SAN
2h 48mnonstop
Hawaiian Airlines Logo
8:42 pm - 11:57 pm
SAN
-
SEA
3h 15mnonstop
$109Hawaiian Airlines
Fri, Jan 30 - Mon, Feb 2
Hawaiian Airlines Logo
8:21 pm - 11:09 pm
SEA
-
SAN
2h 48mnonstop
Hawaiian Airlines Logo
6:15 am - 9:28 am
SAN
-
SEA
3h 13mnonstop
$116Hawaiian Airlines
Fri, Jan 30 - Mon, Feb 2
Delta Logo
7:55 pm - 10:42 pm
SEA
-
SAN
2h 47mnonstop
Delta Logo
7:00 am - 10:15 am
SAN
-
SEA
3h 15mnonstop
$119Delta
Fri, Jan 30 - Tue, Feb 3
Delta Logo
7:15 pm - 11:48 pm
GEG
-
SAN
4h 33m1 stop
Delta Logo
7:30 am - 2:45 pm
SAN
-
GEG
7h 15m1 stop
$142Delta
Sun, Mar 22 - Wed, Mar 25
Alaska Airlines Logo
1:38 pm - 8:58 pm
GEG
-
SAN
7h 20m1 stop
Alaska Airlines Logo
11:03 am - 2:06 pm
SAN
-
GEG
3h 03mnonstop
$145Alaska Airlines
Tue, Feb 3 - Tue, Feb 10
Alaska Airlines Logo
8:46 am - 11:40 am
PAE
-
SAN
2h 54mnonstop
Alaska Airlines Logo
4:52 pm - 11:59 pm
SAN
-
PAE
7h 07m1 stop
$150Alaska Airlines
Sun, Mar 8 - Mon, Mar 9
Multiple Airlines Logo
8:00 am - 7:23 pm
BLI
-
SAN
11h 23m1 stop
Multiple Airlines Logo
2:52 pm - 2:12 pm
SAN
-
BLI
23h 20m1 stop
$198Multiple Airlines
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
6:00 am - 3:17 pm
BLI
-
SAN
9h 17m1 stop
Multiple Airlines Logo
7:11 am - 12:12 pm
SAN
-
BLI
29h 01m2 stops
$206Multiple Airlines
Thu, Feb 19 - Wed, Feb 25

Southwest flights from State of Washington to San Diego

Our best Southwest deals on State of Washington to San Diego flight tickets
Southwest
Mar 8
SEA2:35 pmSeattle/Tacoma Intl
2h 40m
SAN5:15 pmSan Diego
Mar 10
SAN4:15 pmSan Diego
6h 10m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
$106
Southwest
Mar 8
SEA2:35 pmSeattle/Tacoma Intl
2h 40m
SAN5:15 pmSan Diego
Mar 9
SAN6:15 pmSan Diego
5h 55m
1 stop
SEA12:10 amSeattle/Tacoma Intl
$108
Southwest
Mar 2
SEA11:30 amSeattle/Tacoma Intl
5h 25m
1 stop
SAN4:55 pmSan Diego
Mar 4
SAN7:35 amSan Diego
4h 35m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$110

Frontier flights from State of Washington to San Diego

Our best Frontier deals on State of Washington to San Diego flight tickets
Frontier
Jan 30
SEA12:34 pmSeattle/Tacoma Intl
11h 34m
1 stop
SAN12:08 amSan Diego
Feb 4
SAN7:00 amSan Diego
28h 19m
1 stop
SEA11:19 amSeattle/Tacoma Intl
$107
Frontier
Feb 5
SEA12:34 pmSeattle/Tacoma Intl
11h 34m
1 stop
SAN12:08 amSan Diego
Feb 9
SAN2:52 pmSan Diego
20h 02m
1 stop
SEA10:54 amSeattle/Tacoma Intl
$120
Frontier
Feb 26
SEA1:16 pmSeattle/Tacoma Intl
10h 52m
1 stop
SAN12:08 amSan Diego
Mar 2
SAN2:00 pmSan Diego
28h 18m
1 stop
SEA6:18 pmSeattle/Tacoma Intl
$121

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 11, 2026.
Use the filters below to find and compare flights from Washington to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Sun 3/8

2:35 pm-5:15 pm

Nonstop2h 40m

San Diego

Tue 3/10

4:15 pm-10:25 pm

1 stop6h 10m

$106

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 1/30

12:34 pm-12:08 am

1 stop11h 34m

San Diego

Wed 2/4

7:00 am-11:19 am

1 stop28h 19m

$107

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 1/30

8:21 pm-11:09 pm

Nonstop2h 48m

San Diego

Mon 2/2

8:42 pm-11:57 pm

Nonstop3h 15m

$109

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 1/30

8:21 pm-11:09 pm

Nonstop2h 48m

San Diego

Mon 2/2

6:15 am-9:28 am

Nonstop3h 13m

$116

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 1/30

7:55 pm-10:42 pm

Nonstop2h 47m

San Diego

Tue 2/3

7:00 am-10:15 am

Nonstop3h 15m

$119

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sun 3/22

7:15 pm-11:48 pm

1 stop4h 33m

San Diego

Wed 3/25

7:30 am-2:45 pm

1 stop7h 15m

$142

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 2/3

1:38 pm-8:58 pm

1 stop7h 20m

San Diego

Tue 2/10

11:03 am-2:06 pm

Nonstop3h 03m

$145

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Sun 3/8

8:46 am-11:40 am

Nonstop2h 54m

San Diego

Mon 3/9

4:52 pm-11:59 pm

1 stop7h 07m

$150

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 2/27

8:00 am-7:23 pm

1 stop11h 23m

San Diego

Sun 3/1

2:52 pm-2:12 pm

1 stop23h 20m

$198

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 2/19

6:00 am-3:17 pm

1 stop9h 17m

San Diego

Wed 2/25

7:11 am-12:12 pm

2 stops29h 01m

$206

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from State of Washington to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of September, then departing from State of Washington during the month January is also very affordable. Most momondo users find prices during this month for around $208.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from State of Washington to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $257. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $310. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the morning when flights can be purchased for as low as $272. Flights at noon are often more expensive with an average ticket price of $299.

What is the cheapest Washington to San Diego flight route?

Fly from Seattle/Tacoma Intl to San Diego for the best Washington - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $265 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from State of Washington for as low as $225 on momondo.

What cabin class options are available on Washington to San Diego flights?

There are 4 cabin classes available to choose from on Washington to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to San Diego flights?

No. A direct flight is the cheapest option for a flight between State of Washington to San Diego.

Cheap State of Washington to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to San Diego

Best Price Found

$139

Fastest flight time

2h 20m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from State of Washington in the past 72 hours is $139. The best round-trip flight deal from State of Washington to San Diego found on momondo in the last 72 hours is $119.
The fastest flight from State of Washington to San Diego takes 2h 20m
Direct flights go from State of Washington to San Diego every day.
There is 1 airport in San Diego. From State of Washington there are direct flights to San Diego (SAN).
Search flight deals

  • When did momondo last update prices for flights from Washington to San Diego Airport?

    Prices for flights from Washington to San Diego Airport refresh daily.

  • How many operators does momondo search for flights from Washington to San Diego Airport?

  • How old do you have to be to fly from Washington to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from State of Washington to San Diego?

Best airlines flying from State of Washington to San Diego

Compare and see reviews for airlines that fly from State of Washington to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $72Free CancellationRating
6.3
8,299 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $92Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
FrontierPriceFrom $104Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
DeltaPriceFrom $119Free CancellationRating
7.9
8,037 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $119Free CancellationRating
7.8
2,825 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $137Free CancellationRating
8.0
11,684 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $156Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
United AirlinesPriceFrom $178Free CancellationRating
7.4
9,144 reviews
Search United Airlines flights
American AirlinesPriceFrom $225Free CancellationRating
7.2
11,099 reviews
Search American Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
Poway
National City
Imperial Beach
Borrego Springs
San Ysidro
La Mesa
Alpine
Lemon Grove
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Washington to San Diego?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to San Diego for you.

Can I find flights from Washington to San Diego with flexible booking policies on momondo?

Yes. All flights to San Diego from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington to San Diego right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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