Cheap flights from San Diego to Seattle (SAN - SEA) from $35

This is the cheapest one-way flight price, found on 12/6. Prices may vary by date and flight preferences.
SAN — SEA
Dec 12 — Dec 191

The best prices from San Diego to Seattle/Tacoma Intl are usually found in January or February, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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How to find the cheapest flight from San Diego (SAN) to Seattle (SEA)

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 7, 2023.

Popular in

July

Cheapest in

January

Round-trip from

$238

One-way from

$69
High demand for flights, 17% potential price rise
Best time to find cheap flights, 27% potential price drop
From San Diego to Seattle/Tacoma Intl
One-way flight from San Diego to Seattle/Tacoma Intl

What is the cheapest day to fly round-trip from San Diego to Seattle?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 41%.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 149% on flights from San Diego to Seattle compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $361. For sooner than that we have options available in the next 3 days from $558.

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

Flights from San Diego to Seattle lean towards being more expensive in July. Prices are generally better when you fly from San Diego to Seattle in January, with the cheapest ticket starting at $93.

When is the cheapest time to fly from San Diego to Seattle (SAN - SEA)?

It’s typically best to fly out from San Diego to Seattle in the evening. Doing so could potentially save you 10% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Spirit Airlines flights from San Diego to Seattle

Explore cheap flight options specifically provided by Spirit Airlines for the route between San Diego and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Peruse some of the lowest-priced Spirit Airlines flights we've found from San Diego to Seattle. Make sure to check back often as deals are often changing.
  • If you’re traveling from San Diego to Seattle, one of the more common airlines traveling that route is Spirit Airlines. San Diego to Seattle flights are typically 23% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $237.80 RT. The cheapest Spirit Airlines flight found for this route was $109. When traveling from San Diego to Seattle on Spirit Airlines, the most popular airport to depart from is San Diego Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. When flying from San Diego to Seattle, Spirit Airlines flights are 33% more popular than any other airline flying that same route.

Cheap Frontier flights from San Diego to Seattle

Explore cheap flight options specifically provided by Frontier for the route between San Diego and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
To aid your search, here are some of the cheapest Frontier flights we've found from San Diego to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
  • One of the most popular airlines traveling from San Diego to Seattle is Frontier. Flights from Frontier traveling this route typically cost $247.81 RT. This price is typically 30% cheaper than other airlines that offer San Diego to Seattle flights. When booking this route, the cheapest RT price found was $118. San Diego Airport is the most common San Diego airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from San Diego to Seattle, Frontier flights are 30% more popular than any other airline flying that same route.

Cheap San Diego to Seattle flights in December & January 2023

Find cheap flight options from San Diego to Seattle specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Prices were last updated on December 7, 2023.
These are some of the best deals we've found on flights to Seattle in 2023 at this time. More deals are always being added, so be sure to check back regularly.

San Diego to Seattle 2023 flight deals

Discover exclusive flight deals for travel between San Diego and Seattle in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
These are some of the best deals we've found on flights to Seattle in 2023 at this time. More deals are always being added, so be sure to check back regularly.

Non-stop flights to Seattle from San Diego

Discover non-stop flight options from San Diego to Seattle. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
For a quicker trip, book one of these direct flights from San Diego to Seattle. Users seeking other options on flights from San Diego to Seattle should update the search form at the top of the page.

San Diego to Seattle flights leaving soon

Find last-minute flight options from San Diego to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Have a look at some of the flights available from San Diego to Seattle departing last-minute. It's wise to confirm all flight details are correct before booking.

One-way flights to Seattle from San Diego

Search for one-way flight options from San Diego to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Some of the best available deals we've found on one-way flights from San Diego to Seattle. Users can also find round-trip San Diego to Seattle flights by using the search form above.

Find flights from San Diego to Seattle within your budget

Customize your flight search to find flights from San Diego to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$54 - $168

Route

Depart

Return

Price

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Sat 1/13

1 stop10h 24m

Seattle/Tacoma Intl

Tue 1/16

1 stop13h 42m

$54

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Mon 1/8

1 stop13h 48m

Seattle/Tacoma Intl

Sat 1/20

1 stop8h 34m

$65

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Sat 1/13

1 stop10h 24m

Seattle/Tacoma Intl

Tue 1/16

1 stop13h 42m

$71

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Fri 2/2

1 stop21h 56m

Seattle/Tacoma Intl

Sat 2/10

1 stop7h 08m

$75

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Fri 2/2

1 stop10h 40m

Seattle/Tacoma Intl

Sun 2/4

1 stop19h 34m

$76

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Mon 1/8

1 stop10h 38m

Seattle/Tacoma Intl

Sat 1/13

1 stop11h 27m

$78

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Thu 2/29

1 stop9h 16m

Seattle/Tacoma Intl

Sun 3/3

1 stop19h 18m

$87

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Wed 1/10

Nonstop3h 08m

Seattle/Tacoma Intl

Wed 1/10

Nonstop2h 42m

$133

San DiegoSeattle/Tacoma Intl

SAN - SEA

SANSEA

San Diego

Thu 2/29

Nonstop3h 14m

Seattle/Tacoma Intl

Mon 3/4

Nonstop2h 55m

$168

Flights are sorted by cheapest first

Deals found on 12/6

Average price of flights to Seattle by month

Plan your trip from San Diego to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from San Diego to Seattle is currently 44.00 USD while a round-trip flight costs 89.67 USD. Price data was last updated on December 3, 2023.

Currently, January is the cheapest month in which you can book a flight from San Diego to Seattle (average of $238). Flying from San Diego to Seattle in June is currently the most expensive (average of $433). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$238

February

$238

March

$287

April

$306

May

$338

June

$433

July

$417

August

$346

September

$278

October

$258

November

$258

December

$245

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 7, 2023.
Read through reviews of airlines operating flights from San Diego to Seattle, such as Spirit Airlines, Frontier and Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

8.1
Very good
1,404 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

7.9
Good
3,035 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

Southwest
7.6
Good
1,522 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

7.4
Good
1,902 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

6.3
Okay
1,498 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Entertainment

7.2

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Flight was late but we were kept informed. Very crowded boarding area at gates 21 22

Average temperature in Seattle by month

Plan your trip to Seattle by selecting the month that matches your preferred temperature. July sees the highest average temperature while December sees the lowest average temperature. Temperature data was last updated on December 3, 2023.

SEA

Temperature

41 - 66.2 °F

Average rainfall in Seattle by month

Keep in mind the precipitation totals in Seattle when planning your trip. Seattle sees an average of 3.13 precipitation per year with the most occurring in November. Precipitation data was last updated on December 3, 2023.

SEA

Rainfall

0.7 - 6.6 inches

Related info for your journey

Find useful and relevant information for your journey from San Diego to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from San Diego to Seattle?

If you book a flight from San Diego to Seattle, you will be flying from San Diego to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from San Diego (SAN) take 2h 57m for a nonstop flight. There are 34 flights from San Diego to Seattle per day from 8 airlines.

Can I find flights from San Diego to Seattle for under $100 on Cheapflights?

Yes, there are multiple flights from San Diego to Seattle for under $100. The cheapest flight booked recently is on Spirit Airlines for just $54, but on average you can expect to pay $87.

Are there nonstop flights from San Diego to Seattle for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from San Diego to Seattle under $200. A good price for a nonstop flight from San Diego to Seattle is less than $228.

Are there last-minute flights available from San Diego to Seattle for under $200?

There are currently 20+ open flights from San Diego to Seattle within the next 7 days for less than $200.

What days are nonstop flights available from San Diego to Seattle?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this San Diego to Seattle flight route?

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

Per day, 65 flights depart from San Diego to Seattle on average.
Early Morning (Midnight to 6am) - 11% of flight departures
Morning (6am - Noon) - 55% of flight departures
Afternoon (Noon - 6pm) - 11% of flight departures
Evening (6pm - Midnight) - 23% of flight departures

How long is the flight from San Diego to Seattle?

A quick flight from San Diego to Seattle can take about 10h 24m. Spirit Airlines provides one of the quickest options available for as low as $54. Airlines will cover a distance of 1057 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from San Diego to Seattle round-trip?

Flying on Spirit Airlines is currently your cheapest option to Seattle, with prices starting at $54. Another option worth looking into is Frontier, starting at $75 round trip. Spirit Airlines is priced at 76% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from San Diego to Seattle one-way?

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $35. Users have also found prices from $39 and $69 on Frontier and Delta, respectively.

What are the most popular airlines that fly from San Diego to Seattle?

What are the most reliable airlines from San Diego to Seattle?

Consider Air France (98%), SkyWest Airlines (95%) or KLM (95%) when booking your flight. These represent the most reliable airlines when flying from San Diego to Seattle.

What are the cheapest flights from San Diego to Seattle?

While on average a flight from San Diego to Seattle is generally $889, our data shows the cheapest flight currently is $69. When looking at the most popular route, (San Diego - Seattle/Tacoma Intl), you can expect to pay $54 for that flight.

What does SAN to SEA mean?

San Diego Airport is SAN and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from San Diego to Seattle on these airlines
Choose from the following airlines for your flight from San Diego to Seattle. Flights are based on user searches made on Cheapflights and were last updated on December 7, 2023.

Top 7 airlines flying from San Diego to Seattle

Discover the top 7 airlines that operate flights from San Diego to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$184FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$82Average$153FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapest$109Average$238FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$118Average$248FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$155Average$350FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$212Average$423FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Endeavor AirlinesCheapest$218Average$402FlexibilityNo cancel feeOn-timeN/A
Search Endeavor Airlines flights

Search flights to Seattle by cabin class

Hourly flight availability from San Diego to Seattle

Find hourly flight availability from San Diego to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 7, 2023.
3%of flight departuresEarly morningMidnight to 6 am
65%of flight departuresMorning6 am to noon
27%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Diego to Seattle

Explore weekly flight availability from San Diego to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 7, 2023.
Sunday34daily flights
Monday44daily flights
Tuesday22daily flights
Wednesday35daily flights
Thursday30daily flights
Friday47daily flights
Saturday29daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Diego to Seattle?

Deals for San Diego to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Diego to Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Diego to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Seattle become cheaper?

Of course! You can now track prices for flights from San Diego to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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