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Cheap flights from San Diego to Seattle 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 San Diego to Seattle departing on 2/12. 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.
3:07 pm - 8:50 pmSAN-SEA
5h 43m1 stop
9:45 am - 3:26 pmSEA-SAN
5h 41m1 stop
Mon, Jan 13 - Tue, Jan 21
7:26 pm - 12:19 amSAN-SEA
4h 53m1 stop
9:45 am - 10:18 pmSEA-SAN
12h 33m1 stop
$88Spirit Airlines
Find Deal
Sat, Jan 18 - Tue, Jan 21
3:07 pm - 8:52 pmSAN-SEA
5h 45m1 stop
9:45 am - 3:26 pmSEA-SAN
5h 41m1 stop
Fri, Jan 17 - Tue, Jan 21
4:06 pm - 12:02 pmSAN-SEA
19h 56m1 stop
11:48 am - 7:17 pmSEA-SAN
7h 29m1 stop
$102Frontier
Find Deal
Thu, Mar 6 - Tue, Mar 11
12:44 pm - 9:40 amSAN-SEA
20h 56m1 stop
9:40 am - 12:05 pmSEA-SAN
26h 25m1 stop
$105Frontier
Find Deal
Wed, Jan 15 - Mon, Jan 20
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
9:35 am - 12:30 pmSEA-SAN
2h 55mnonstop
$137Delta
Find Deal
Sat, Jan 25 - Sat, Feb 1
8:55 am - 3:08 pmSAN-SEA
6h 13m1 stop
5:50 pm - 8:42 pmSEA-SAN
2h 52mnonstop
$146Alaska Airlines
Find Deal
Wed, May 7 - Sat, May 17
6:20 am - 9:30 amSAN-SEA
3h 10mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$147Alaska Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
6:55 pm - 10:05 pmSAN-SEA
3h 10mnonstop
11:40 am - 2:33 pmSEA-SAN
2h 53mnonstop
$162Delta
Find Deal
Sat, May 17 - Sun, May 25
7:00 am - 10:11 amSAN-SEA
3h 11mnonstop
6:30 am - 12:12 pmSEA-SAN
5h 42m1 stop
$233American Airlines
Find Deal
Sat, Mar 15 - Wed, Mar 19
8:11 am - 4:40 pmSAN-SEA
8h 29m1 stop
$51Frontier
Find Deal
Wed, Feb 12
6:25 am - 12:46 pmSAN-SEA
6h 21m1 stop
$53Frontier
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Sat, Mar 1
7:41 pm - 12:25 amSAN-SEA
4h 44m1 stop
$66Spirit Airlines
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Sat, Feb 22
7:26 pm - 12:19 amSAN-SEA
4h 53m1 stop
$67Spirit Airlines
Find Deal
Tue, Jan 14
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
$69Delta
Find Deal
Wed, Jan 29
6:52 pm - 9:59 pmSAN-SEA
3h 07mnonstop
$79Alaska Airlines
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Fri, Jan 31
7:00 am - 9:55 amSAN-SEA
2h 55mnonstop
$94Alaska Airlines
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Fri, May 23
6:55 pm - 10:10 pmSAN-SEA
3h 15mnonstop
$109Delta
Find Deal
Sun, Mar 2
7:00 am - 10:10 amSAN-SEA
3h 10mnonstop
$332American Airlines
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Fri, Jan 3
7:00 am - 10:10 amSAN-SEA
3h 10mnonstop
$469American Airlines
Find Deal
Sat, Jan 4
6:15 am - 1:11 pmSAN-SEA
6h 56m1 stop
9:36 pm - 11:49 pmSEA-SAN
26h 13m1 stop
Fri, Jan 3 - Mon, Jan 6
9:05 pm - 9:39 amSAN-SEA
12h 34m1 stop
9:36 pm - 11:49 pmSEA-SAN
26h 13m1 stop
$279Frontier
Find Deal
Fri, Jan 3 - Mon, Jan 6
6:15 am - 1:11 pmSAN-SEA
6h 56m1 stop
6:11 am - 10:12 pmSEA-SAN
16h 01m2 stops
$367Spirit Airlines
Find Deal
Fri, Jan 3 - Sat, Jan 4
6:15 am - 1:11 pmSAN-SEA
6h 56m1 stop
6:11 am - 10:12 pmSEA-SAN
16h 01m2 stops
$389Spirit Airlines
Find Deal
Fri, Jan 3 - Mon, Jan 6
6:15 am - 9:28 amSAN-SEA
3h 13mnonstop
7:50 pm - 10:33 pmSEA-SAN
2h 43mnonstop
$472Alaska Airlines
Find Deal
Wed, Jan 1 - Tue, Jan 14
9:26 am - 12:38 pmSAN-SEA
3h 12mnonstop
2:59 pm - 5:47 pmSEA-SAN
2h 48mnonstop
$491Alaska Airlines
Find Deal
Fri, Jan 3 - Fri, Jan 3
6:15 am - 6:04 pmSAN-SEA
11h 49m2 stops
5:00 am - 2:49 pmSEA-SAN
9h 49m2 stops
$536United Airlines
Find Deal
Wed, Jan 1 - Tue, Jan 14
11:26 am - 2:42 pmSAN-SEA
3h 16mnonstop
7:30 am - 10:31 amSEA-SAN
3h 01mnonstop
$547Delta
Find Deal
Tue, Dec 31 - Sat, Jan 4
6:15 am - 3:25 pmSAN-SEA
9h 10m2 stops
7:15 am - 12:44 pmSEA-SAN
5h 29m1 stop
$571United Airlines
Find Deal
Wed, Jan 1 - Fri, Jan 3
7:00 pm - 10:25 pmSAN-SEA
3h 25mnonstop
7:10 am - 3:26 pmSEA-SAN
8h 16m1 stop
$736Delta
Find Deal
Mon, Dec 30 - Fri, Jan 3
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
11:35 am - 2:24 pmSEA-SAN
2h 49mnonstop
$137Delta
Find Deal
Wed, Mar 5 - Sat, Mar 8
5:29 pm - 8:35 pmSAN-SEA
3h 06mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$138Alaska Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
5:29 pm - 8:35 pmSAN-SEA
3h 06mnonstop
7:00 am - 9:48 amSEA-SAN
2h 48mnonstop
$139Alaska Airlines
Find Deal
Sat, Jan 25 - Sun, Jan 26
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
7:15 am - 10:09 amSEA-SAN
2h 54mnonstop
$147Delta
Find Deal
Wed, Mar 5 - Thu, Mar 13
9:35 am - 12:44 pmSAN-SEA
3h 09mnonstop
7:50 pm - 10:33 pmSEA-SAN
2h 43mnonstop
$152Alaska Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2
1:25 pm - 4:41 pmSAN-SEA
3h 16mnonstop
3:15 pm - 5:59 pmSEA-SAN
2h 44mnonstop
$157Delta
Find Deal
Mon, Jan 27 - Mon, Feb 3
1:35 pm - 4:40 pmSAN-SEA
3h 05mnonstop
9:45 am - 12:37 pmSEA-SAN
2h 52mnonstop
$162Delta
Find Deal
Sat, May 17 - Sun, May 25
7:20 am - 10:35 amSAN-SEA
3h 15mnonstop
7:30 am - 10:24 amSEA-SAN
2h 54mnonstop
$172Delta
Find Deal
Sat, Jan 18 - Mon, Jan 20
6:15 am - 9:23 amSAN-SEA
3h 08mnonstop
9:15 pm - 11:59 pmSEA-SAN
2h 44mnonstop
$177Alaska Airlines
Find Deal
Sat, Feb 15 - Mon, Feb 17
7:00 am - 10:10 amSAN-SEA
3h 10mnonstop
7:50 pm - 10:33 pmSEA-SAN
2h 43mnonstop
$352American Airlines
Find Deal
Sat, Jan 11 - Sat, Jan 18

Spirit Airlines flights from San Diego to Seattle

Our best Spirit Airlines deals on San Diego to Seattle flight tickets
Spirit Airlines
Jan 18
SAN7:26 pmSan Diego
4h 53m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Jan 21
SEA9:45 amSeattle/Tacoma Intl
12h 33m
1 stop
SAN10:18 pmSan Diego
Spirit Airlines
Jan 23
SAN1:31 pmSan Diego
10h 48m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Jan 30
SEA7:10 amSeattle/Tacoma Intl
5h 26m
1 stop
SAN12:36 pmSan Diego
Spirit Airlines
Feb 21
SAN6:15 amSan Diego
12h 33m
1 stop
SEA6:48 pmSeattle/Tacoma Intl
Feb 24
SEA5:15 amSeattle/Tacoma Intl
8h 46m
1 stop
SAN2:01 pmSan Diego

Delta flights from San Diego to Seattle

Our best Delta deals on San Diego to Seattle flight tickets
Delta
Jan 25
SAN7:20 amSan Diego
3h 15m
SEA10:35 amSeattle/Tacoma Intl
Feb 1
SEA9:35 amSeattle/Tacoma Intl
2h 55m
SAN12:30 pmSan Diego
Delta
May 17
SAN6:55 pmSan Diego
3h 10m
SEA10:05 pmSeattle/Tacoma Intl
May 25
SEA11:40 amSeattle/Tacoma Intl
2h 53m
SAN2:33 pmSan Diego
Delta
Jan 18
SAN11:20 amSan Diego
3h 13m
SEA2:33 pmSeattle/Tacoma Intl
Jan 20
SEA7:30 amSeattle/Tacoma Intl
2h 54m
SAN10:24 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 typical price of a round-trip flight between San Diego and Seattle?

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 $168.

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 $236. 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 $289.

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 at noon, with an average ticket price of $256. Departure times at noon 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 34 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $229 when searching 34 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 $176 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 53% 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 December 2024, prices for San Diego to Seattle flights are approximately 7% cheaper 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

$51

Fastest flight time

2h 55m

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 $51. The best round-trip flight deal from San Diego to Seattle found on momondo in the last 72 hours is $87.
The fastest flight from San Diego to Seattle takes 2h 55m
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 2h 56m 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
8,100 reviews
Search Spirit Airlines flights
FrontierPriceFrom $91Free CancellationRating
6.0
3,458 reviews
Search Frontier flights
American AirlinesPriceFrom $113Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $117Free CancellationRating
8.0
8,546 reviews
Search Delta flights
Alaska AirlinesPriceFrom $128Free CancellationRating
8.0
9,583 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
  • Delta Flights From San Diego to Seattle

    Across 26 Delta flights from San Diego to Seattle this week, the average price was $241, with the best Delta deals starting from $117 round-trip. 8,546 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, 9,583 ratings). Alaska Airlines flies from San Diego to Seattle around 10 times per week, with deals starting from $128 round-trip and rising to an average price of around $271.


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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