How many flights depart from San Diego to Seattle on average per day?

As of November 2025, 26 flights take off from San Diego and land in Seattle each day. The most common flight departure time for this route is 11:00AM, with 53% of daily flights taking off at noon.

How often are flights from San Diego to Seattle delayed?

Historically, on average around 12% of flights between San Diego and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

How many flights depart from San Diego to Seattle on average per week?

183 flights are operational weekly from San Diego to Seattle as of November 2025. The most popular departure day for this route is Thu, with 26% of flights per week taking off on this day.

What is the most punctual flight time for San Diego to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which airport is the most popular layover for flights between San Diego and Seattle?

Denver (DEN) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from San Diego to Seattle?

Sacramento (SMF) has the shortest average layover time for this route: 1h 25m.

Which layover airport has the shortest travel time from San Diego to Seattle?

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 5h 08m.

What is the cheapest airline that flies from San Diego to Seattle/Tacoma Intl?

United Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from San Diego to Seattle/Tacoma Intl

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

What airlines fly to Seattle?

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from San Diego according to our data. Alaska Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from San Diego to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $163.

Which airline has the best punctuality record on San Diego to Seattle flights?

According to our data, Aeromexico have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

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?

There are 8 operators available for flights from San Diego Airport to Seattle/Tacoma Intl Airport as of November 2025.

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.

$90 Cheap Flights from San Diego to Seattle in 2025/26

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6:25 am - 12:14 pmSAN-SEA

29h 49m1 stop

4:47 pm - 7:33 pmSEA-SAN

2h 46mnonstop

$153Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

11:41 am - 2:57 pmSAN-SEA

3h 16mnonstop

3:40 pm - 11:59 pmSEA-SAN

8h 19m1 stop

$154Multiple Airlines

Find Deal

Thu, Dec 4 - Fri, Dec 12

6:30 am - 9:53 amSAN-SEA

3h 23mnonstop

7:10 am - 10:02 amSEA-SAN

2h 52mnonstop

$158Delta

Find Deal

Sun, Dec 21 - Fri, Jan 16

6:30 am - 9:50 amSAN-SEA

3h 20mnonstop

3:21 pm - 6:00 pmSEA-SAN

2h 39mnonstop

$159Delta

Find Deal

Fri, Dec 19 - Tue, Jan 20

6:25 am - 12:14 pmSAN-SEA

29h 49m1 stop

6:07 pm - 12:38 pmSEA-SAN

18h 31m1 stop

$160Frontier

Find Deal

Thu, Feb 26 - Thu, Mar 5

1:06 pm - 10:11 amSAN-SEA

21h 05m1 stop

2:54 pm - 11:59 pmSEA-SAN

9h 05m1 stop

$161Frontier

Find Deal

Sun, Dec 21 - Sat, Jan 3

8:58 pm - 8:42 amSAN-SEA

11h 44m1 stop

2:08 pm - 4:57 pmSEA-SAN

2h 49mnonstop

$162Alaska Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

9:24 pm - 12:41 amSAN-SEA

3h 17mnonstop

7:55 pm - 10:45 pmSEA-SAN

2h 50mnonstop

$164Hawaiian Airlines

Find Deal

Sun, Dec 21 - Wed, Dec 31

9:24 pm - 12:41 amSAN-SEA

3h 17mnonstop

6:28 am - 9:25 amSEA-SAN

2h 57mnonstop

$167Alaska Airlines

Find Deal

Sat, Dec 20 - Sat, Jan 3

4:02 pm - 10:10 pmSAN-SEA

6h 08m1 stop

6:09 pm - 8:59 pmSEA-SAN

2h 50mnonstop

$199Hawaiian Airlines

Find Deal

Wed, Dec 24 - Thu, Jan 1

Frontier flights from San Diego to Seattle

Our best Frontier deals on San Diego to Seattle flight tickets

Frontier

Feb 26

SAN6:25 amSan Diego

29h 49m

1 stop

SEA12:14 pmSeattle/Tacoma Intl

Mar 5

SEA6:07 pmSeattle/Tacoma Intl

18h 31m

1 stop

SAN12:38 pmSan Diego

$160

Find similar

Frontier

Dec 21

SAN1:06 pmSan Diego

21h 05m

1 stop

SEA10:11 amSeattle/Tacoma Intl

Jan 3

SEA2:54 pmSeattle/Tacoma Intl

9h 05m

1 stop

SAN11:59 pmSan Diego

$161

Find similar

Frontier

Dec 29

SAN7:21 pmSan Diego

14h 50m

1 stop

SEA10:11 amSeattle/Tacoma Intl

Jan 1

SEA6:00 amSeattle/Tacoma Intl

14h 24m

2 stops

SAN8:24 pmSan Diego

$163

Find similar

Hawaiian Airlines flights from San Diego to Seattle

Our best Hawaiian Airlines deals on San Diego to Seattle flight tickets

Hawaiian Airlines

Dec 21

SAN9:24 pmSan Diego

3h 17m

SEA12:41 amSeattle/Tacoma Intl

Dec 31

SEA7:55 pmSeattle/Tacoma Intl

2h 50m

SAN10:45 pmSan Diego

$164

Find similar

Hawaiian Airlines

Dec 24

SAN4:02 pmSan Diego

6h 08m

1 stop

SEA10:10 pmSeattle/Tacoma Intl

Jan 1

SEA6:09 pmSeattle/Tacoma Intl

2h 50m

SAN8:59 pmSan Diego

$199

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Fly from

Fly to

Route

Depart

Return

Price

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Wed 12/3

6:25 am-12:14 pm

1 stop29h 49m

Seattle/Tacoma Intl

Wed 12/10

4:47 pm-7:33 pm

Nonstop2h 46m

$153

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 12/4

11:41 am-2:57 pm

Nonstop3h 16m

Seattle/Tacoma Intl

Fri 12/12

3:40 pm-11:59 pm

1 stop8h 19m

$154

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sun 12/21

6:30 am-9:53 am

Nonstop3h 23m

Seattle/Tacoma Intl

Fri 1/16

7:10 am-10:02 am

Nonstop2h 52m

$158

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Fri 12/19

6:30 am-9:50 am

Nonstop3h 20m

Seattle/Tacoma Intl

Tue 1/20

3:21 pm-6:00 pm

Nonstop2h 39m

$159

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 2/26

6:25 am-12:14 pm

1 stop29h 49m

Seattle/Tacoma Intl

Thu 3/5

6:07 pm-12:38 pm

1 stop18h 31m

$160

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sun 12/21

1:06 pm-10:11 am

1 stop21h 05m

Seattle/Tacoma Intl

Sat 1/3

2:54 pm-11:59 pm

1 stop9h 05m

$161

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Wed 12/3

8:58 pm-8:42 am

1 stop11h 44m

Seattle/Tacoma Intl

Wed 12/10

2:08 pm-4:57 pm

Nonstop2h 49m

$162

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sun 12/21

9:24 pm-12:41 am

Nonstop3h 17m

Seattle/Tacoma Intl

Wed 12/31

7:55 pm-10:45 pm

Nonstop2h 50m

$164

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 12/20

9:24 pm-12:41 am

Nonstop3h 17m

Seattle/Tacoma Intl

Sat 1/3

6:28 am-9:25 am

Nonstop2h 57m

$167

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Wed 12/24

4:02 pm-10:10 pm

1 stop6h 08m

Seattle/Tacoma Intl

Thu 1/1

6:09 pm-8:59 pm

Nonstop2h 50m

$199

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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

Prices

Airlines

Delays

Layovers

Other information

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 $176. 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 $211.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $339. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $562.

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

Flying to Seattle from San Diego in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $347 when looking at flights departing in the afternoon. Flights to Seattle are more costly at noon, with an average ticket price of $433. 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 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $246 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San Diego for as low as $202 on momondo.

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 1% 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 2025, prices for San Diego to Seattle flights are approximately 13% 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	$157
Fastest flight time	2h 56m
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 $157. The best round-trip flight deal from San Diego to Seattle found on momondo in the last 72 hours is $264.

The fastest flight from San Diego to Seattle takes 2h 56m

Direct flights go from San Diego to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

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 55m 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?
There are 8 operators available for flights from San Diego Airport to Seattle/Tacoma Intl Airport as of November 2025.
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?
momondo data reveals that the most frequently booked plane model on the route from San Diego to Seattle is Boeing 737-900 Passenger/BBJ3 (winglets), representing 22.07% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 20.77%, Boeing 737 MAX 9 at 17.27%, and Boeing 737 at 9.43%.
What is the most popular airline from San Diego to Seattle?
Based on momondo bookings for flights between San Diego and Seattle, the leading airline is Alaska Airlines, making up 43% of the total bookings. Other popular airlines include Delta with 42%, Hawaiian Airlines with 7%, and Frontier with 3%.

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 Airlines	PriceFrom $66	Free Cancellation	Rating 6.3 8,114 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $100	Free Cancellation	Rating 5.8 3,115 reviews	Search Frontier flights
American Airlines	PriceFrom $113	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
Delta	PriceFrom $137	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
Alaska Airlines	PriceFrom $148	Free Cancellation	Rating 8.0 11,241 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $159	Free Cancellation	Rating 7.8 2,803 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $166	Free Cancellation	Rating 8.0 4,238 reviews	Search Southwest flights
United Airlines	PriceFrom $216	Free Cancellation	Rating 7.4 9,000 reviews	Search United Airlines flights

Alaska Airlines Flights From San Diego to Seattle
Across 11 Alaska Airlines flights from San Diego to Seattle this week, the average price was $279, with the best Alaska Airlines deals starting from $148 round-trip. 11,241 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.
Southwest Flights From San Diego to Seattle
Another popular option for San Diego to Seattle flights is Southwest (8.0/10, 4,238 ratings). Southwest flies from San Diego to Seattle around 10 times per week, with deals starting from $166 round-trip and rising to an average price of around $296.

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Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

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Shoreline

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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Cheap flights from San Diego to Seattle from $90

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 12/2. 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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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?

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

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

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?

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 1% 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 2025, prices for San Diego to Seattle flights are approximately 13% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from San Diego to Seattle/Tacoma Intl?

United Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from San Diego to Seattle/Tacoma Intl

What airlines fly to Seattle?

How often are flights from San Diego to Seattle delayed?

Historically, on average around 12% of flights between San Diego and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What is the most punctual flight time for San Diego to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Diego to Seattle flights?

According to our data, Aeromexico have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

Which airport is the most popular layover for flights between San Diego and Seattle?

Denver (DEN) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from San Diego to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $163.

Which layover airport has the shortest travel time from San Diego to Seattle?

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 5h 08m.

Which layover airport has the shortest connection time from San Diego to Seattle?

Sacramento (SMF) has the shortest average layover time for this route: 1h 25m.

How many flights depart from San Diego to Seattle on average per day?

As of November 2025, 26 flights take off from San Diego and land in Seattle each day. The most common flight departure time for this route is 11:00AM, with 53% of daily flights taking off at noon.

How many flights depart from San Diego to Seattle on average per week?

183 flights are operational weekly from San Diego to Seattle as of November 2025. The most popular departure day for this route is Thu, with 26% of flights per week taking off on this day.

When to book flights from San Diego to Seattle

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

Fastest flight time

Direct flights

Airports in Seattle

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

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

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?

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

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

Alaska Airlines Flights From San Diego to Seattle

Southwest Flights From San Diego to Seattle

Traveling to a place near Seattle?

Why use momondo?

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