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Cheap flights from San Diego to Seattle from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Seattle departing on 12/17. 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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Find the cheapest flights from San Diego to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from San Diego to Seattle 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 San Diego to Seattle.

Cheap last minute flights

Planning a quick getaway from San Diego to Seattle? 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 Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Diego to Seattle

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

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$97Delta
Find Deal
Wed, Jan 15 - Mon, Jan 20
6:25 am - 11:29 amSAN-SEA
29h 04m1 stop
11:49 am - 9:16 amSEA-SAN
21h 27m1 stop
$104Frontier
Find Deal
Wed, Dec 11 - Tue, Dec 17
11:48 am - 2:53 pmSAN-SEA
3h 05mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$105Alaska Airlines
Find Deal
Thu, Feb 6 - Sun, Feb 9
8:11 am - 4:40 pmSAN-SEA
8h 29m1 stop
11:48 am - 7:18 pmSEA-SAN
7h 30m1 stop
$107Frontier
Find Deal
Wed, Feb 26 - Thu, Feb 27
6:15 am - 11:55 amSAN-SEA
5h 40m1 stop
9:21 pm - 8:13 amSEA-SAN
10h 52m1 stop
$129Spirit Airlines
Find Deal
Thu, Dec 12 - Sun, Dec 15
6:15 am - 9:24 amSAN-SEA
3h 09mnonstop
1:10 pm - 3:59 pmSEA-SAN
2h 49mnonstop
$131Alaska Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 17
1:31 pm - 12:19 amSAN-SEA
10h 48m1 stop
5:45 am - 4:06 pmSEA-SAN
10h 21m1 stop
$132Spirit Airlines
Find Deal
Fri, Jan 10 - Mon, Jan 13
5:00 pm - 8:12 pmSAN-SEA
3h 12mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$137Delta
Find Deal
Tue, Jan 7 - Sat, Jan 11
6:15 am - 1:43 pmSAN-SEA
7h 28m1 stop
7:00 am - 12:19 pmSEA-SAN
5h 19m1 stop
$176United Airlines
Find Deal
Thu, Mar 6 - Mon, Mar 10
10:15 am - 7:08 pmSAN-SEA
8h 53m2 stops
9:00 am - 7:53 pmSEA-SAN
10h 53m2 stops
$266United Airlines
Find Deal
Wed, Jan 8 - Tue, Jan 14
6:15 am - 2:53 pmSAN-SEA
8h 38m1 stop
$38Spirit Airlines
Find Deal
Tue, Dec 17
6:15 am - 1:11 pmSAN-SEA
6h 56m1 stop
$45Spirit Airlines
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Wed, Dec 18
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
$49Delta
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Sun, Jan 19
10:40 am - 4:26 pmSAN-SEA
5h 46m1 stop
$53Frontier
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Mon, Jan 27
8:55 am - 4:40 pmSAN-SEA
7h 45m1 stop
$54Frontier
Find Deal
Mon, Mar 3
6:50 pm - 10:00 pmSAN-SEA
3h 10mnonstop
$69Alaska Airlines
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Tue, Dec 17
9:35 am - 12:44 pmSAN-SEA
3h 09mnonstop
$79Alaska Airlines
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Mon, Jan 13
6:15 am - 12:41 pmSAN-SEA
6h 26m1 stop
$88United Airlines
Find Deal
Wed, Jan 1
6:15 am - 3:45 pmSAN-SEA
9h 30m2 stops
$93United Airlines
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Wed, Jan 29
6:35 am - 9:59 amSAN-SEA
3h 24mnonstop
$149Delta
Find Deal
Wed, Dec 25
7:17 pm - 7:41 amSAN-SEA
12h 24m1 stop
9:35 pm - 9:15 amSEA-SAN
11h 40m1 stop
Fri, Nov 29 - Tue, Dec 3
11:25 am - 4:23 pmSAN-SEA
4h 58m1 stop
3:09 pm - 11:49 pmSEA-SAN
8h 40m1 stop
Mon, Dec 2 - Thu, Dec 5
11:25 am - 4:23 pmSAN-SEA
4h 58m1 stop
5:15 am - 6:15 pmSEA-SAN
13h 00m2 stops
$354Spirit Airlines
Find Deal
Mon, Dec 2 - Thu, Dec 5
6:57 pm - 1:19 pmSAN-SEA
18h 22m1 stop
2:24 pm - 6:40 amSEA-SAN
16h 16m1 stop
$359Spirit Airlines
Find Deal
Thu, Nov 28 - Mon, Dec 2
3:40 pm - 6:57 pmSAN-SEA
3h 17mnonstop
3:25 pm - 6:10 pmSEA-SAN
2h 45mnonstop
$507Delta
Find Deal
Mon, Dec 2 - Thu, Dec 5
8:55 pm - 11:59 pmSAN-SEA
3h 04mnonstop
11:11 am - 2:00 pmSEA-SAN
2h 49mnonstop
$557Alaska Airlines
Find Deal
Fri, Nov 29 - Tue, Dec 3
9:20 am - 12:30 pmSAN-SEA
3h 10mnonstop
5:50 am - 8:43 amSEA-SAN
2h 53mnonstop
$592Alaska Airlines
Find Deal
Thu, Nov 28 - Mon, Dec 2
11:15 am - 2:25 pmSAN-SEA
3h 10mnonstop
7:20 am - 10:19 amSEA-SAN
2h 59mnonstop
$607Delta
Find Deal
Thu, Nov 28 - Sat, Nov 30
7:00 am - 10:10 amSAN-SEA
3h 10mnonstop
3:56 pm - 6:45 pmSEA-SAN
2h 49mnonstop
$627American Airlines
Find Deal
Sat, Nov 30 - Tue, Dec 3
10:15 am - 4:58 pmSAN-SEA
6h 43m1 stop
9:00 am - 11:49 amSEA-SAN
2h 49mnonstop
$637American Airlines
Find Deal
Thu, Nov 28 - Tue, Dec 3
5:00 pm - 8:12 pmSAN-SEA
3h 12mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$97Delta
Find Deal
Thu, Jan 16 - Mon, Jan 20
11:48 am - 2:53 pmSAN-SEA
3h 05mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$105Alaska Airlines
Find Deal
Thu, Feb 6 - Sun, Feb 9
6:15 am - 9:24 amSAN-SEA
3h 09mnonstop
1:10 pm - 3:59 pmSEA-SAN
2h 49mnonstop
$131Alaska Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 17
5:00 pm - 8:12 pmSAN-SEA
3h 12mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$137Delta
Find Deal
Tue, Jan 7 - Sat, Jan 11
9:35 am - 12:44 pmSAN-SEA
3h 09mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$147Alaska Airlines
Find Deal
Sat, Jan 11 - Mon, Jan 13
11:20 am - 2:33 pmSAN-SEA
3h 13mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$148Delta
Find Deal
Sat, Jan 11 - Sun, Jan 12
5:00 pm - 8:12 pmSAN-SEA
3h 12mnonstop
5:45 pm - 8:31 pmSEA-SAN
2h 46mnonstop
$149Delta
Find Deal
Sat, Jan 11 - Sun, Jan 12
3:20 pm - 6:32 pmSAN-SEA
3h 12mnonstop
9:45 am - 12:41 pmSEA-SAN
2h 56mnonstop
$157Delta
Find Deal
Thu, Mar 6 - Mon, Mar 10
7:20 am - 10:36 amSAN-SEA
3h 16mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$167Delta
Find Deal
Sun, Feb 16 - Tue, Feb 18
8:00 am - 11:11 amSAN-SEA
3h 11mnonstop
7:59 pm - 10:48 pmSEA-SAN
2h 49mnonstop
$772American Airlines
Find Deal
Wed, Dec 11 - Wed, Dec 18

Frontier flights from San Diego to Seattle

Our best Frontier deals on San Diego to Seattle flight tickets
Frontier
Dec 11
SAN6:25 amSan Diego
29h 04m
1 stop
SEA11:29 amSeattle/Tacoma Intl
Dec 17
SEA11:49 amSeattle/Tacoma Intl
21h 27m
1 stop
SAN9:16 amSan Diego
Frontier
Feb 26
SAN8:11 amSan Diego
8h 29m
1 stop
SEA4:40 pmSeattle/Tacoma Intl
Feb 27
SEA11:48 amSeattle/Tacoma Intl
7h 30m
1 stop
SAN7:18 pmSan Diego
Frontier
Jan 27
SAN10:40 amSan Diego
5h 46m
1 stop
SEA4:26 pmSeattle/Tacoma Intl
Jan 30
SEA3:15 pmSeattle/Tacoma Intl
8h 37m
1 stop
SAN11:52 pmSan Diego

Alaska Airlines flights from San Diego to Seattle

Our best Alaska Airlines deals on San Diego to Seattle flight tickets
Alaska Airlines
Feb 6
SAN11:48 amSan Diego
3h 05m
SEA2:53 pmSeattle/Tacoma Intl
Feb 9
SEA7:00 amSeattle/Tacoma Intl
2h 48m
SAN9:48 amSan Diego
Alaska Airlines
Dec 17
SAN6:15 amSan Diego
3h 09m
SEA9:24 amSeattle/Tacoma Intl
Dec 17
SEA1:10 pmSeattle/Tacoma Intl
2h 49m
SAN3:59 pmSan Diego
Alaska Airlines
Jan 24
SAN10:32 amSan Diego
4h 21m
1 stop
SEA2:53 pmSeattle/Tacoma Intl
Jan 26
SEA7:00 amSeattle/Tacoma Intl
2h 48m
SAN9:48 amSan Diego

See travel insights to Seattle from

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

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 Seattle?

In general, January is the cheapest month to fly from San Diego to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $156. If you don’t want to visit Seattle in January, then you should wait until February to fly from San Diego, when ticket prices are also cheap, with an average price of $172.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from San Diego is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $237. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $286.

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

Flying to Seattle from San Diego in the evening is the least expensive time of day to depart. momondo users have found prices as low as $241 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $256. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Diego to Seattle/Tacoma Intl flight route?

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

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

You are more likely to see cheaper flights to Seattle from San Diego when booking 55 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $227 when searching 55 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $177 in the past 72 hours.

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

There are 4 cabin classes available to choose from on San Diego to Seattle/Tacoma Intl 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 San Diego to Seattle flights?

You could potentially save up to 22% on your flight if you consider stops on a San Diego to Seattle flight.

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

As of November 2024, prices for San Diego to Seattle flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to Seattle

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

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

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

Best Price Found

$38

Fastest flight time

3h 05m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from San Diego in the past 72 hours is $38. The best round-trip flight deal from San Diego to Seattle found on momondo in the last 72 hours is $97.
The fastest flight from San Diego to Seattle takes 3h 05m
Direct flights go from San Diego to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    The straight-line distance from San Diego to Seattle/Tacoma Intl is 1063.7 mi. Typically, this will take 3h 05m by plane in normal conditions.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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 San Diego to Seattle?

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


Best airlines flying from San Diego to Seattle

Compare and see reviews for airlines that fly from San Diego to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $80Free CancellationRating
6.3
8,172 reviews
Search Spirit Airlines flights
FrontierPriceFrom $90Free CancellationRating
6.1
3,523 reviews
Search Frontier flights
American AirlinesPriceFrom $113Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $117Free CancellationRating
8.0
8,730 reviews
Search Delta flights
Alaska AirlinesPriceFrom $128Free CancellationRating
8.0
9,481 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,146 reviews
Search United Airlines flights
  • Delta Flights From San Diego to Seattle

    Across 23 Delta flights from San Diego to Seattle this week, the average price was $240, with the best Delta deals starting from $117 round-trip. 8,730 users have rated Delta on momondo, with an average score of 8.0/10.

  • Alaska Airlines Flights From San Diego to Seattle

    Another popular option for San Diego to Seattle flights is Alaska Airlines (8.0/10, 9,481 ratings). Alaska Airlines flies from San Diego to Seattle around 13 times per week, with deals starting from $128 round-trip and rising to an average price of around $269.


Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from San Diego.

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

Yes. momondo allows you to filter the results for San Diego to Seattle flights to just show those with flexible booking policies.

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

Once you have performed a search for San Diego to Seattle 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 San Diego to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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