Cheap flights from San Diego to Seattle from C$ 111
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
24 Nov — 1 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Diego to Seattle/Tacoma Intl are usually found in February or January, booked 86 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap flight deals from San Diego to Seattle
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from San Diego to Seattle
Explore the most affordable flight options available from San Diego to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.
Fri 4/127:20 a.m. -
Nonstop3h 05m
Mon 7/127:00 a.m. -
Nonstop2h 40m
Deal found 25/10C$ 202
Tue 17/112:48 p.m. -
Nonstop3h 07m
Tue 17/117:59 p.m. -
Nonstop2h 51m
Deal found 25/10C$ 213
Tue 1/121:51 p.m. -
Nonstop3h 12m
Thu 3/127:59 p.m. -
Nonstop2h 53m
Deal found 24/10C$ 220
Thu 19/116:47 p.m. -
Nonstop3h 13m
Mon 23/119:55 a.m. -
Nonstop2h 56m
Deal found 25/10C$ 221
Wed 9/126:45 a.m. -
1 stop5h 25m
Wed 16/126:30 p.m. -
Nonstop2h 50m
Deal found 25/10C$ 228
Fri 18/125:55 p.m. -
Nonstop3h 05m
Wed 20/11:35 p.m. -
1 stop7h 40m
Deal found 24/10C$ 234
Tue 8/125:05 p.m. -
1 stop4h 35m
Sat 12/128:35 a.m. -
1 stop4h 20m
Deal found 23/10C$ 235
Sat 14/118:50 a.m. -
Nonstop3h 10m
Mon 16/115:15 a.m. -
2 stops6h 30m
Deal found 24/10C$ 241
Tue 17/115:45 p.m. -
Nonstop3h 10m
Sat 21/116:45 a.m. -
1 stop9h 35m
Deal found 23/10C$ 242
Best flights from San Diego to Seattle
Discover carefully curated flight deals from San Diego to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.
Mon 1/27:50 p.m. -
Nonstop3h 10m
Fri 5/26:30 a.m. -
Nonstop2h 46m
Deal found 25/10C$ 220
Thu 11/26:50 a.m. -
Nonstop3h 15m
Mon 15/27:59 p.m. -
Nonstop2h 50m
Deal found 25/10C$ 269
Thu 3/125:45 p.m. -
Nonstop3h 10m
Sun 6/126:30 a.m. -
1 stop4h 10m
Deal found 24/10C$ 277
Sat 12/126:15 a.m. -
Nonstop3h 17m
Tue 5/110:05 a.m. -
Nonstop2h 51m
Deal found 21/10C$ 290
Sat 12/123:45 p.m. -
1 stop4h 25m
Sat 2/18:00 a.m. -
Nonstop2h 45m
Deal found 23/10C$ 304
Fri 13/111:49 p.m. -
Nonstop3h 08m
Thu 19/1112:00 p.m. -
Nonstop2h 58m
Deal found 25/10C$ 326
Fri 11/126:43 p.m. -
Nonstop3h 14m
Mon 4/111:20 a.m. -
Nonstop2h 50m
Deal found 21/10C$ 308
Fri 18/125:55 p.m. -
Nonstop3h 05m
Thu 31/128:05 a.m. -
1 stop7h 25m
Deal found 23/10C$ 322
Sun 13/126:15 a.m. -
Nonstop3h 17m
Mon 4/11:00 p.m. -
Nonstop2h 50m
Deal found 21/10C$ 308
Tue 22/126:15 a.m. -
Nonstop3h 18m
Tue 29/129:41 p.m. -
1 stop11h 07m
Deal found 24/10C$ 329
Fri 11/128:59 p.m. -
1 stop11h 17m
Tue 5/110:05 a.m. -
Nonstop2h 51m
Deal found 21/10C$ 368
Direct flights from San Diego to Seattle
Explore direct flight options from San Diego to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.
Tue 17/112:48 p.m. -
Nonstop3h 07m
Tue 17/117:59 p.m. -
Nonstop2h 51m
Deal found 25/10C$ 213
Tue 1/126:15 a.m. -
Nonstop3h 17m
Sat 12/123:00 p.m. -
Nonstop2h 45m
Deal found 24/10C$ 220
Thu 19/116:47 p.m. -
Nonstop3h 13m
Mon 23/119:55 a.m. -
Nonstop2h 56m
Deal found 25/10C$ 221
Tue 17/117:40 a.m. -
Nonstop3h 13m
Sat 21/118:58 p.m. -
Nonstop2h 46m
Deal found 25/10C$ 248
Sat 12/129:10 a.m. -
Nonstop3h 10m
Sat 2/18:00 a.m. -
Nonstop2h 45m
Deal found 23/10C$ 255
Wed 23/1211:21 a.m. -
Nonstop3h 19m
Mon 28/127:59 p.m. -
Nonstop2h 53m
Deal found 24/10C$ 269
Tue 1/127:20 a.m. -
Nonstop3h 05m
Tue 15/126:30 p.m. -
Nonstop2h 50m
Deal found 23/10C$ 274
Sat 21/117:22 p.m. -
Nonstop3h 14m
Tue 1/128:09 p.m. -
Nonstop2h 50m
Deal found 24/10C$ 283
Sat 12/126:15 a.m. -
Nonstop3h 17m
Sat 2/16:00 a.m. -
Nonstop2h 49m
Deal found 23/10C$ 286
Fri 18/125:55 p.m. -
Nonstop3h 05m
Fri 25/127:00 a.m. -
Nonstop2h 40m
Deal found 24/10C$ 287
Tue 15/124:08 p.m. -
Nonstop3h 10m
Sat 2/19:09 p.m. -
Nonstop2h 50m
Deal found 22/10C$ 288
Last-minute flights from San Diego to Seattle
Discover last-minute flight deals from San Diego to Seattle. Data last updated 25 October 2026 and is based on user searches.
Fri 13/116:00 p.m. -
Nonstop3h 15m
Mon 16/114:40 p.m. -
1 stop5h 10m
Deal found 23/10C$ 234
Sat 14/118:50 a.m. -
Nonstop3h 10m
Mon 16/115:15 a.m. -
2 stops6h 30m
Deal found 24/10C$ 241
Tue 17/112:48 p.m. -
Nonstop3h 07m
Tue 17/117:59 p.m. -
Nonstop2h 51m
Deal found 25/10C$ 213
Tue 17/115:05 p.m. -
1 stop4h 35m
Tue 8/126:30 p.m. -
Nonstop2h 50m
Deal found 23/10C$ 228
Tue 17/115:45 p.m. -
Nonstop3h 10m
Sat 21/116:45 a.m. -
1 stop9h 35m
Deal found 23/10C$ 242
Tue 17/117:40 a.m. -
Nonstop3h 13m
Sat 21/118:58 p.m. -
Nonstop2h 46m
Deal found 25/10C$ 248
Wed 18/116:22 p.m. -
Nonstop3h 07m
Mon 23/116:00 a.m. -
Nonstop2h 48m
Deal found 24/10C$ 220
Thu 19/116:47 p.m. -
Nonstop3h 13m
Mon 23/119:55 a.m. -
Nonstop2h 56m
Deal found 25/10C$ 221
One-way flights from San Diego to Seattle
Search for one-way flight options from San Diego to Seattle. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.
Tue 24/117:20 a.m. -
Nonstop3h 18m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 24/10C$ 111
Tue 17/115:05 p.m. -
1 stop4h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 24/10C$ 118
Mon 16/112:55 p.m. -
1 stop6h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 23/10C$ 125
Tue 24/118:50 a.m. -
1 stop27h 47m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 23/10C$ 130
Sat 14/1112:25 p.m. -
2 stops7h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 24/10C$ 132
Wed 25/112:55 p.m. -
Nonstop3h 09m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 23/10C$ 144
Tue 15/123:52 p.m. -
Nonstop3h 13m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 21/10C$ 146
Wed 25/115:29 p.m. -
1 stop21h 53m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 23/10C$ 147
Sat 19/127:56 p.m. -
1 stop21h 14m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 21/10C$ 148
Thu 26/111:49 p.m. -
Nonstop3h 08m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 21/10C$ 150
Wed 11/115:00 p.m. -
1 stop4h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 21/10C$ 157
Sun 10/16:50 a.m. -
Nonstop3h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 21/10C$ 160
Find flight deals from San Diego to Seattle
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 25 October 2026.
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 7,457,451 searches. Data last updated 25 October 2026.
Use the filters below to find and compare flights from San Diego to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Wed 25/11
3:53 p.m.-7:01 p.m.
Nonstop3h 08m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 111
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 14/11
8:50 a.m.-12:00 p.m.
Nonstop3h 10m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 111
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Mon 7/12
6:47 p.m.-10:05 p.m.
Nonstop3h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 111
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 1/12
7:20 a.m.-10:38 a.m.
Nonstop3h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 111
Quickest round-trip
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 19/12
5:40 p.m.-8:45 p.m.
Nonstop3h 05m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 146
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 24/11
3:53 p.m.-7:01 p.m.
Nonstop3h 08m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 150
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Fri 4/12
4:08 p.m.-7:18 p.m.
Nonstop3h 10m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 160
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sun 22/11
6:26 p.m.-12:59 a.m.
1 stop6h 33m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 174
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sun 20/12
7:40 p.m.-1:10 a.m.
1 stop5h 30m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 174
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Mon 28/12
7:25 a.m.-10:43 a.m.
Nonstop3h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 174
Flights are sorted by cheapest round-trip flights first.
Deals found on 24/10
Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
Best time to book a flight from San Diego to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from San Diego with our price prediction graph.
SAN-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Seattle
Prices
Airlines
Delays
How far ahead should I book a flight from San Diego to Seattle?
The price you pay for your flight from San Diego to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to Seattle?
Currently, February is the cheapest month in which you can book a flight from San Diego to Seattle (average of C$ 276). Flying from San Diego to Seattle in July is currently the most expensive (average of C$ 455). 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.
What is the cheapest time of day to fly from SAN to SEA?
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 25 October 2026.
A simple way to save on the total cost of your ticket is to fly from San Diego to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the evening.
How much does it cost to fly round-trip from San Diego to Seattle?
Airfare is below average for this route at the moment.
San Diego to Seattle flights typically cost between C$ 244 and C$ 483 in December.The cheapest round-trip price found within the last 5 days was C$ 202 on Southwest (4 Dec-7 Dec).
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 25 October 2026.
The most flights from SAN to SEA are scheduled on a Saturday (40 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).
How often are flights from San Diego to Seattle delayed?
About 11% of weekly flights between San Diego and Seattle have experienced delays in the past year, with the average delay time being 157 minutes.
What is the most punctual flight time for San Diego to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Diego to Seattle flights?
Over the past year, Delta has had the lowest number of delays on this route, with just 8% of flights being delayed.
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.
How popular is this San Diego to Seattle flight route?
Flights from San Diego to Seattle/Tacoma Intl have been viewed 2 times in the past calendar month.
How long is the flight from San Diego to Seattle?
Alaska Airlines, Delta, and Southwest can get you from San Diego to Seattle in just under 3h 10m. Your travel time will be generally consistent. San Diego and Seattle are separated by a distance of 1691 km. All flights are typically direct.
What are the most reliable airlines from San Diego to Seattle?
Consider Korean Air (89%), Finnair (85%) or Scandinavian Airlines (84%) 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?
Looking at all options, your cheapest flight can be booked for C$ 126. While the most popular route (San Diego - Seattle/Tacoma Intl) can be booked for C$ 272 on average, our data indicates C$ 499 when flying from San Diego to Seattle.
Can I find deals for business class flights from San Diego to Seattle?
Yes. Cheapflights offers flight deals from San Diego to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Diego to Seattle?
Currently, February is the cheapest month in which you can book a flight from San Diego to Seattle (average of C$ 276). Flying from San Diego to Seattle in July is currently the most expensive (average of C$ 455). 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.
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on 25 October 2026.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 25 October 2026.
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?
Cheapflights helps you search for flights from San Diego to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from San Diego to Seattle?
Cheapflights helps you find that perfect flight to Seattle from San Diego by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from San Diego to Seattle with no change fees?
Certainly. Search results for flights to Seattle from San Diego shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
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.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.