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Cheap flights from Seattle to San Diego from $51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to San Diego departing on 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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Find the cheapest flights from Seattle to San Diego

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to San Diego that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to San Diego.

Cheap last minute flights

Planning a quick getaway from Seattle to San Diego? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Diego, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to San Diego

Find recent round-trip train or bus tickets from Seattle to San Diego.

All round-trip flight deals to San Diego

The cheapest plane tickets to San Diego found on KAYAK recently.
9:52 pm - 7:42 amSEA-SAN
9h 50m1 stop
3:07 pm - 8:50 pmSAN-SEA
5h 43m1 stop
$100Frontier
Find Deal
Fri, Dec 13 - Mon, Dec 16
9:52 pm - 7:42 amSEA-SAN
9h 50m1 stop
8:42 am - 8:50 pmSAN-SEA
12h 08m1 stop
$101Frontier
Find Deal
Fri, Dec 13 - Mon, Dec 16
9:21 pm - 8:13 amSEA-SAN
10h 52m1 stop
6:15 am - 2:53 pmSAN-SEA
8h 38m1 stop
$103Spirit Airlines
Find Deal
Fri, Dec 13 - Tue, Dec 17
9:52 pm - 7:42 amSEA-SAN
9h 50m1 stop
6:15 am - 1:11 pmSAN-SEA
6h 56m1 stop
Fri, Dec 13 - Wed, Dec 18
9:21 pm - 8:13 amSEA-SAN
10h 52m1 stop
3:07 pm - 8:50 pmSAN-SEA
5h 43m1 stop
Thu, Dec 12 - Mon, Dec 16
2:16 pm - 8:58 amSEA-SAN
18h 42m1 stop
7:26 pm - 12:14 amSAN-SEA
4h 48m1 stop
$119Spirit Airlines
Find Deal
Wed, Jan 8 - Wed, Jan 22
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
7:20 am - 10:36 amSAN-SEA
3h 16mnonstop
$137Delta
Find Deal
Tue, Jan 7 - Tue, Jan 28
11:11 am - 2:00 pmSEA-SAN
2h 49mnonstop
4:55 pm - 8:05 pmSAN-SEA
3h 10mnonstop
$141Alaska Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 10
7:23 am - 12:14 pmSEA-SAN
4h 51m1 stop
4:55 pm - 8:05 pmSAN-SEA
3h 10mnonstop
$146Alaska Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 10
5:45 pm - 8:31 pmSEA-SAN
2h 46mnonstop
7:20 am - 10:36 amSAN-SEA
3h 16mnonstop
$147Delta
Find Deal
Fri, Jan 10 - Tue, Jan 28
9:52 pm - 7:42 amSEA-SAN
9h 50m1 stop
$51Frontier
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Sun, Dec 15
12:10 pm - 6:58 pmSEA-SAN
6h 48m1 stop
$54Frontier
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Thu, Feb 6
3:15 pm - 12:29 amSEA-SAN
9h 14m1 stop
$55Frontier
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Mon, Feb 3
12:50 pm - 6:15 pmSEA-SAN
5h 25m1 stop
$64Spirit Airlines
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Mon, Dec 16
10:13 am - 3:29 pmSEA-SAN
5h 16m1 stop
$66Spirit Airlines
Find Deal
Sat, Jan 18
9:55 am - 12:50 pmSEA-SAN
2h 55mnonstop
$69Delta
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Sat, Dec 14
7:59 pm - 10:48 pmSEA-SAN
2h 49mnonstop
$72Alaska Airlines
Find Deal
Fri, Dec 13
11:20 am - 4:43 pmSEA-SAN
5h 23m1 stop
$78Alaska Airlines
Find Deal
Wed, Feb 19
9:55 am - 12:50 pmSEA-SAN
2h 55mnonstop
$79Delta
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Sun, Dec 15
9:19 am - 12:10 pmSEA-SAN
2h 51mnonstop
$289American Airlines
Find Deal
Sat, Nov 30
12:03 pm - 6:26 pmSEA-SAN
6h 23m1 stop
1:48 pm - 11:29 amSAN-SEA
21h 41m1 stop
$181Frontier
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Mon, Nov 25 - Wed, Dec 4
12:03 pm - 6:26 pmSEA-SAN
6h 23m1 stop
1:48 pm - 11:29 amSAN-SEA
21h 41m1 stop
$184Frontier
Find Deal
Mon, Nov 25 - Wed, Dec 4
9:35 pm - 6:40 amSEA-SAN
9h 05m1 stop
6:15 am - 11:55 amSAN-SEA
5h 40m1 stop
$273Spirit Airlines
Find Deal
Sat, Nov 23 - Thu, Dec 5
9:35 pm - 6:40 amSEA-SAN
9h 05m1 stop
6:15 am - 11:55 amSAN-SEA
5h 40m1 stop
$279Spirit Airlines
Find Deal
Sun, Nov 24 - Thu, Dec 5
4:45 pm - 7:30 pmSEA-SAN
2h 45mnonstop
6:15 am - 9:24 amSAN-SEA
3h 09mnonstop
$372Alaska Airlines
Find Deal
Mon, Nov 25 - Tue, Dec 10
3:25 pm - 6:10 pmSEA-SAN
2h 45mnonstop
1:45 pm - 4:59 pmSAN-SEA
3h 14mnonstop
$407Delta
Find Deal
Mon, Nov 25 - Wed, Dec 11
7:20 am - 10:19 amSEA-SAN
2h 59mnonstop
11:25 am - 2:41 pmSAN-SEA
3h 16mnonstop
$457Delta
Find Deal
Mon, Nov 25 - Tue, Dec 10
9:17 pm - 11:59 pmSEA-SAN
2h 42mnonstop
2:56 pm - 6:06 pmSAN-SEA
3h 10mnonstop
$477Alaska Airlines
Find Deal
Sun, Nov 24 - Wed, Dec 4
11:40 am - 6:27 pmSEA-SAN
6h 47m1 stop
2:10 pm - 5:20 pmSAN-SEA
3h 10mnonstop
$637American Airlines
Find Deal
Fri, Nov 22 - Tue, Nov 26
6:16 am - 11:35 amSEA-SAN
5h 19m1 stop
2:00 pm - 5:08 pmSAN-SEA
3h 08mnonstop
$681American Airlines
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Thu, Nov 21 - Thu, Nov 21
7:50 pm - 10:33 pmSEA-SAN
2h 43mnonstop
9:35 am - 12:44 pmSAN-SEA
3h 09mnonstop
$134Alaska Airlines
Find Deal
Sat, Jan 11 - Mon, Jan 13
7:25 am - 10:14 amSEA-SAN
2h 49mnonstop
11:10 am - 2:23 pmSAN-SEA
3h 13mnonstop
$137Delta
Find Deal
Tue, Jan 7 - Wed, Jan 8
7:30 pm - 10:25 pmSEA-SAN
2h 55mnonstop
7:00 pm - 10:25 pmSAN-SEA
3h 25mnonstop
$138Delta
Find Deal
Tue, Dec 10 - Wed, Dec 11
11:11 am - 2:00 pmSEA-SAN
2h 49mnonstop
4:55 pm - 8:05 pmSAN-SEA
3h 10mnonstop
$141Alaska Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 10
6:35 am - 9:25 amSEA-SAN
2h 50mnonstop
5:29 pm - 8:35 pmSAN-SEA
3h 06mnonstop
$144Alaska Airlines
Find Deal
Sat, Jan 4 - Sat, Jan 11
7:30 pm - 10:25 pmSEA-SAN
2h 55mnonstop
7:25 am - 10:43 amSAN-SEA
3h 18mnonstop
$147Delta
Find Deal
Fri, Dec 13 - Wed, Dec 18
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
7:20 am - 10:36 amSAN-SEA
3h 16mnonstop
$148Delta
Find Deal
Sat, Jan 11 - Sun, Jan 12
6:35 am - 9:25 amSEA-SAN
2h 50mnonstop
5:00 pm - 8:12 pmSAN-SEA
3h 12mnonstop
$156Alaska Airlines
Find Deal
Sat, Jan 4 - Sat, Jan 11
7:59 pm - 10:48 pmSEA-SAN
2h 49mnonstop
8:00 am - 11:11 amSAN-SEA
3h 11mnonstop
$227American Airlines
Find Deal
Fri, Dec 13 - Mon, Dec 16
9:19 am - 12:10 pmSEA-SAN
2h 51mnonstop
7:00 am - 10:11 amSAN-SEA
3h 11mnonstop
$498American Airlines
Find Deal
Sat, Nov 30 - Tue, Dec 3

Spirit Airlines flights from Seattle to San Diego

Our best Spirit Airlines deals on Seattle to San Diego flight tickets
Spirit Airlines
Dec 13
SEA9:21 pmSeattle/Tacoma Intl
10h 52m
1 stop
SAN8:13 amSan Diego
Dec 17
SAN6:15 amSan Diego
8h 38m
1 stop
SEA2:53 pmSeattle/Tacoma Intl
Spirit Airlines
Jan 8
SEA2:16 pmSeattle/Tacoma Intl
18h 42m
1 stop
SAN8:58 amSan Diego
Jan 22
SAN7:26 pmSan Diego
4h 48m
1 stop
SEA12:14 amSeattle/Tacoma Intl
Spirit Airlines
Dec 9
SEA9:21 pmSeattle/Tacoma Intl
22h 14m
1 stop
SAN7:35 pmSan Diego
Dec 12
SAN6:15 amSan Diego
5h 40m
1 stop
SEA11:55 amSeattle/Tacoma Intl

Frontier flights from Seattle to San Diego

Our best Frontier deals on Seattle to San Diego flight tickets
Frontier
Dec 13
SEA9:52 pmSeattle/Tacoma Intl
9h 50m
1 stop
SAN7:42 amSan Diego
Dec 16
SAN3:07 pmSan Diego
5h 43m
1 stop
SEA8:50 pmSeattle/Tacoma Intl
Frontier
Dec 13
SEA9:52 pmSeattle/Tacoma Intl
9h 50m
1 stop
SAN7:42 amSan Diego
Dec 16
SAN8:42 amSan Diego
12h 08m
1 stop
SEA8:50 pmSeattle/Tacoma Intl
Frontier
Jan 4
SEA7:05 pmSeattle/Tacoma Intl
12h 40m
1 stop
SAN7:45 amSan Diego
Jan 8
SAN12:44 pmSan Diego
21h 03m
1 stop
SEA9:47 amSeattle/Tacoma Intl

See travel insights to San Diego from

How to get the cheapest flight ticket from Seattle 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 from Seattle to San Diego?

January. The cheapest time of year to fly to San Diego from Seattle is January. Most expensive is December

What is the cheapest day to depart Seattle for San Diego?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Seattle to San Diego?

In the evening. Seattle to San Diego flights are approximately 17% more expensive at noon than in the evening

What is the cheapest Seattle to San Diego flight route?

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

How far in advance should you book Seattle to San Diego flights?

34 days before. The cheapest time to buy a flight from Seattle to San Diego is approximately 34 days to departure

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

There are 2 cabin classes available to choose from on Seattle 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 Seattle to San Diego flights?

You could potentially save up to 20% on your flight if you consider stops on a Seattle to San Diego flight.

How have Seattle to San Diego flight prices changed over time?

As of November 2024, prices for Seattle to San Diego flights are approximately 16% cheaper when compared to flights at the same time last year.

What is the typical price of a round-trip flight between Seattle and San Diego?


When to book flights from Seattle to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to San Diego (SEA to SAN) flight deals and tips

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

Best Price Found

$51

Fastest flight time

2h 42m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in San Diego

1 airport
The best one-way flight to San Diego from Seattle in the past 72 hours is $51. The best round-trip flight deal from Seattle to San Diego found on momondo in the last 72 hours is $100.
The fastest flight from Seattle to San Diego takes 2h 42m
Direct flights go from Seattle to San Diego on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Delta, American Airlines and Alaska Airlines.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is Seattle/Tacoma Intl to San Diego by plane?

    The distance between Seattle/Tacoma Intl and San Diego is about 1063.7 mi. In terms of flight time, this usually takes a little over 2h 45m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Diego Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to San Diego Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport to San Diego Airport.

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

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to San Diego?

  • What is the most popular airline from Seattle to San Diego?


Best airlines flying from Seattle to San Diego

Compare and see reviews for airlines that fly from Seattle to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $74Free CancellationRating
6.3
8,174 reviews
Search Spirit Airlines flights
FrontierPriceFrom $88Free CancellationRating
6.1
3,539 reviews
Search Frontier flights
DeltaPriceFrom $117Free CancellationRating
8.0
8,756 reviews
Search Delta flights
Alaska AirlinesPriceFrom $125Free CancellationRating
8.0
9,461 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $173Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $176Free CancellationRating
7.4
9,171 reviews
Search United Airlines flights
  • Delta Flights From Seattle to San Diego

    Delta operates around 29 flights from Seattle to San Diego every week. The average price of these flights found in the last 72 hours has been $252, but momondo users have found Delta deals from Seattle to San Diego from as low as $117 round-trip. Delta has been scored 8.0/10 in 8,756 reviews.

  • Alaska Airlines Flights From Seattle to San Diego

    $125 is the best Alaska Airlines flight deal from Seattle to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $285, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 9,461 user reviews) flies into San Diego from Seattle 18 times in an average week so prices can vary.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to San Diego. momondo saves you time and could save you money on your trip.

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

Flights from Seattle to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Seattle to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle 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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