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Find cheap flights from Seattle to San Diego from £35

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to San Diego departing on 21/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 31/5
Fri 7/6

Search hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Diego, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,052,950 times on KAYAK, and here's why:

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Cheap flight deals from Seattle to San Diego (SEA-SAN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
22:08 - 06:24SEA-SAN
8h 16m1 stop
20:40 - 10:48SAN-SEA
14h 08m1 stop
£117Frontier
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Fri, 16 Aug - Tue, 20 Aug
19:30 - 22:21SEA-SAN
2h 51mdirect
07:25 - 10:31SAN-SEA
3h 06mdirect
£149Delta
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Wed, 22 May - Wed, 29 May
18:51 - 21:37SEA-SAN
2h 46mdirect
06:31 - 11:34SAN-SEA
5h 03m1 stop
£156Alaska Airlines
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Wed, 22 May - Sat, 1 Jun
15:15 - 17:59SEA-SAN
2h 44mdirect
18:55 - 21:57SAN-SEA
3h 02mdirect
£157Delta
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Wed, 22 May - Tue, 28 May
19:59 - 22:45SEA-SAN
2h 46mdirect
20:00 - 22:59SAN-SEA
2h 59mdirect
£161Alaska Airlines
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Wed, 22 May - Fri, 24 May
06:40 - 12:59SEA-SAN
6h 19m1 stop
06:15 - 09:19SAN-SEA
3h 04mdirect
£168Alaska Airlines
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Tue, 21 May - Mon, 27 May
11:40 - 14:29SEA-SAN
2h 49mdirect
11:06 - 14:14SAN-SEA
3h 08mdirect
£169Delta
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Sat, 1 Jun - Sun, 2 Jun
09:00 - 17:49SEA-SAN
8h 49m2 stops
06:20 - 12:51SAN-SEA
6h 31m1 stop
£296United Airlines
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Mon, 28 Oct - Wed, 30 Oct
20:40 - 07:45SEA-SAN
11h 05m1 stop
13:00 - 23:25SAN-SEA
10h 25m1 stop
£318Southwest
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Sun, 19 May - Thu, 23 May
09:35 - 19:50SEA-SAN
10h 15m2 stops
11:01 - 15:42SAN-SEA
4h 41m1 stop
£338United Airlines
Find Deal
Wed, 2 Oct - Sun, 6 Oct

Flights from Seattle to San Diego - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to San Diego is January, where tickets cost £150 on average. On the other hand, the most expensive months are December and April, where the average cost of tickets is £238 and £222 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to San Diego, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 46 days before departure.

Which airlines provide the cheapest flights from Seattle to San Diego?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Spirit Airlines (£35) and Alaska Airlines (£73). The cheapest round-trip tickets were found on Frontier (£117) and Delta (£149).

Which airlines fly direct between Seattle and San Diego?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to San Diego.
There are 2 airlines that fly direct from Seattle to San Diego. They are Alaska Airlines and Delta. The cheapest airline for this route is Alaska Airlines, with the best one-way deal found costing £108. On average, the best prices for this route can be found at Alaska Airlines.

How many flights are there between Seattle and San Diego per day?

Each day, there are between 14 and 16 nonstop flights that take off from Seattle and land in San Diego, with an average flight time of 2h 46m. The most common departure time is 19:00 and most flights take off in the morning. Each week, there are 105 flights. The most frequent day of departure is Sunday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Seattle and San Diego?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to San Diego take?

Direct flights from Seattle generally make it to San Diego in 2h 44m. The flying distance between the two cities is 1,051 miles.

What’s the earliest departure time from Seattle to San Diego?

Early birds can take the earliest flight from Seattle at 06:00 and will be landing in San Diego at 08:50.

What’s the latest departure time from Seattle to San Diego?

If you prefer to fly at night, the latest flight from Seattle to San Diego jets off at 21:15 and lands at 23:58.

Good to know - Cheap tickets from Seattle to San Diego

Low season

September

High season

December

Cheapest flight

£35
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from Seattle to San Diego

When to book flights from Seattle to San Diego

Are your dates flexible? Find out the best times to travel from Seattle to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to San Diego

  • What are some good hotels near San Diego International Airport?

    The Hilton is a stylish hotel that is less than a 15-minute drive from Balboa Park and a 16-minute drive from San Diego International Airport. The Sheraton San Diego Hotel is a modern option that is a 15-minute drive from the USS Midway Museum and a 14-minute drive from the airport.

  • Is there anywhere to smoke at San Diego International Airport?

    At this time, there are no indoor smoking rooms in the terminals of San Diego International Airport. However, there are some designated outdoor smoking zones that are placed outside of the doors of the Arrivals terminal and which are clearly marked by official airport signs.

  • What is there to do at Seattle-Tacoma International Airport?

    If you are an art enthusiast, make sure to check out the contemporary collection from SeaTac that can be found in the main terminal of Seattle-Tacoma International Airport. If you would prefer to watch a movie or TV show, head to a Digiboo self-service kiosk to rent some digital content before boarding your flight.

  • What shopping options are there at Seattle-Tacoma International Airport?

    To purchase some gifts or souvenirs, browse through the various shops that are located in Seattle-Tacoma International Airport. Chalo Seattle is a local boutique that offers a variety of regional products, while Affordable Luxuries sells clothing and accessories. There are also several Hudson News locations, in case you need to pick up any last-minute travel essentials.

  • What is the cheapest flight from Seattle to San Diego?

    In the last 3 days, the lowest price for a flight from Seattle to San Diego was £44 for a one-way ticket and £147 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to San Diego?

    All the following airlines offer inflight Wi-Fi service on the Seattle to San Diego flight route: Alaska Airlines, Delta, JetBlue, Aeromexico, Asiana Airlines, Cape Air, and Air Canada.

  • Which aircraft models fly most regularly from Seattle to San Diego?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to San Diego flight route.

  • Which airline alliances offer flights from Seattle to San Diego?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and San Diego, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Seattle to San Diego?

    There are direct flights from Seattle to San Diego on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Diego with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Seattle to San Diego

  • An easy way to make your day of traveling as quick and simple as possible is to specifically search for direct flights from Seattle to San Diego. Companies such as Delta, Alaska, and United Airlines offer many daily flights between these two locations, as well as additional perks like in-flight entertainment and free snacks.
  • If you find traveling to be stressful, consider getting a massage to help you relax before your flight from Seattle to San Diego starts boarding. The Massage Bar is located near the N Gates of Seattle-Tacoma International Airport and offers a variety of different services, making it a convenient place to go in order to be pampered.
  • For those interested in freshening up after landing at San Diego International Airport, purchase an access pass for the Airspace Lounge. In addition to providing guests with private showers, towels, and toiletries, this lounge also has unlimited drinks and snacks, high-speed WiFi, and several televisions.
  • Seattle-Tacoma International Airport is home to Experience the City of Music, a program that coordinates daily live music performances throughout the airport’s Departures terminals between the hours of 9 am and 3 pm. Make sure to check the program’s event calendar to see if you will have the opportunity to catch a show before boarding your flight.
  • To refuel after a day of traveling, grab a bite to eat from one of the several restaurants in San Diego International Airport. The Bankers Hill Bar & Restaurant is an American-style choice that is located in Terminal 1, while the PGA TOUR Grill serves healthy entrees and is found in Terminal 2.
See more tips

Prefer to fly direct from Seattle to San Diego?

Find which airlines fly direct from Seattle/Tacoma Intl to San Diego, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to San Diego

Monday

Air France, Air Tahiti Nui, Alaska Airlines, +11 more

Air France, Air Tahiti Nui, +12 more

Tuesday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Wednesday

Air France, Air Tahiti Nui, Alaska Airlines, +11 more

Air France, Air Tahiti Nui, +12 more

Thursday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Friday

Air France, Air Tahiti Nui, Alaska Airlines, +11 more

Air France, Air Tahiti Nui, +12 more

Saturday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Sunday

Air France, Air Tahiti Nui, Alaska Airlines, +12 more

Air France, Air Tahiti Nui, +13 more

See more direct flights

Direct returns

San Diego to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, American Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Tuesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Wednesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Thursday

Air Tahiti Nui, Alaska Airlines, American Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Friday

Air Tahiti Nui, Alaska Airlines, American Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Saturday

Air Tahiti Nui, Alaska Airlines, American Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Sunday

Air Tahiti Nui, Alaska Airlines, American Airlines, +11 more

Air Tahiti Nui, Alaska Airlines, +12 more

See more direct flights
See more direct flights

Top airline flying from Seattle to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Seattle to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9115 reviews
7.3Food
8.6Crew
7.3Entertainment
8.2Boarding
7.9Comfort
Airline reviews

Good. Quiet. Comfortable. The protests nearly kept me from catching my flight. They waited for me! I made it!

8.0 ExcellentAnonymous, Apr 2024SEA - BUR
Read more about Alaska Airlines reviews

Good. Quiet. Comfortable. The protests nearly kept me from catching my flight. They waited for me! I made it!

I tried to cancel my flight weeks in advance round trip and told I was not able to. $400 down the drain

wish Airlines would board the plane starting in the back first. Makes more sense and I think it would be faster, NO? Everything else was great!

I went Premium otherwise it would have been a long wait. On board I only asked for a cup of hot water and got lukewarm. Cabin crew have poor to no service. But great flight; it went smooth.

I appreciated the check-in at SEATAC - a knowledgeable person was available. I found it easy to ask questions as I went along. I hadn't been at SEATAC for a year and was not that familiar. Parking was fine at Sacramento

My baggage arrived at the airport on an earlier flight. It would have been nice if I would have gotten a text. I waited until all the luggage had arrived before Ivwent to the baggage counter!

I had to check-in my small carry-on at the gate which was inconvenient. According to the people at the gate at SEATAC, there wasn't anymore room in the overhead bins. I obliged. But, when I got inside the aircraft, there was plenty of room EVERYWHERE! It was either miscommunication or incompetence among the Alaska personnel.

Bad. The fight was late and they gave a ridiculous $12 stipend. Better give something or nothing. $12 is ridiculous.

It was a good flight . It wasn’t a full flight so we had space to move around

Great as always. Alaska is my top airline when flying to/from the Pacific NW. I was a bit anxious when I found out I was in a 737 Max, but it went well for us.

Book cheap flights from Seattle to San Diego

Cheapest flights to San Diego from Seattle found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to San Diego found on KAYAK in the last 72 hours.
21/5Tue
1 stopSpirit Airlines
11h 34mSEA-SAN
£35
21/5Tue
2 stopsSpirit Airlines
16h 08mSEA-SAN
£49
21/5Tue
directAlaska Airlines
2h 47mSEA-SAN
£73
28/5Tue
directAlaska Airlines
2h 47mSEA-SAN
£75
29/5Wed
directDelta
2h 44mSEA-SAN
£79
30/5Thu
directDelta
2h 44mSEA-SAN
£91
28/8Wed
2 stopsUnited Airlines
14h 49mSEA-SAN
£171
21/8Wed
2 stopsUnited Airlines
14h 49mSEA-SAN
£174
20/5Mon
1 stopAmerican Airlines
11h 17mSEA-SAN
£319
20/5Mon
2 stopsAmerican Airlines
14h 11mSEA-SAN
£562

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Last minute flights from Seattle to San Diego

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to San Diego that are departing in the next 10 days.
6/5Mon
directAlaska Airlines
2h 50mSEA-SAN
20/5Mon
directAlaska Airlines
2h 59mSAN-SEA
£393
6/5Mon
directAlaska Airlines
2h 43mSEA-SAN
9/5Thu
directAlaska Airlines
3h 03mSAN-SEA
£433
6/5Mon
directDelta
2h 50mSEA-SAN
15/5Wed
directDelta
3h 06mSAN-SEA
£469
4/5Sat
directDelta
2h 49mSEA-SAN
15/5Wed
directDelta
3h 08mSAN-SEA
£477
2/5Thu
directAlaska Airlines
2h 43mSEA-SAN
7/5Tue
directAlaska Airlines
3h 00mSAN-SEA
£489
4/5Sat
multi-stopAlaska Airlines
6h 31mSEA-SAN
7/5Tue
directAlaska Airlines
3h 03mSAN-SEA
£496
3/5Fri
multi-stopUnited Airlines
10h 11mSEA-SAN
4/5Sat
multi-stopUnited Airlines
5h 52mSAN-SEA
£505
6/5Mon
directDelta
2h 50mSEA-SAN
11/5Sat
directDelta
3h 06mSAN-SEA
£524
3/5Fri
multi-stopUnited Airlines
10h 11mSEA-SAN
6/5Mon
multi-stopUnited Airlines
11h 09mSAN-SEA
£548
3/5Fri
multi-stopUnited Airlines
10h 11mSEA-SAN
4/5Sat
multi-stopUnited Airlines
15h 14mSAN-SEA
£557

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Seattle - San Diego Flights

Departure:

Seattle (SEA)United States

Destination:

San Diego (SAN)United States

Return flight deals:

San Diego - Seattle

Cabin classes:

£252

Browse origins:

  • Flights » 
  • Seattle

Browse destinations:

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  • San Diego