Cheap flights from San Diego to Seattle from C$ 109
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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
10 Oct — 17 Oct1
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 Tuesday or Monday and return on a Tuesday
Cheap flight deals from San Diego to Seattle
Enter your travel dates to find the best prices.
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Last-minute
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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 10 September 2026.
Mon 9/117:20 a.m. -
Nonstop3h 18m
Mon 16/119:52 a.m. -
Nonstop2h 56m
Deal found 10/9C$ 204
Sat 3/105:20 p.m. -
Nonstop3h 06m
Tue 6/1010:58 a.m. -
1 stop6h 22m
Deal found 10/9C$ 207
Wed 21/1012:10 p.m. -
Nonstop3h 07m
Wed 28/106:39 a.m. -
1 stop6h 49m
Deal found 7/9C$ 208
Tue 29/94:10 p.m. -
2 stops5h 35m
Thu 1/107:15 a.m. -
1 stop5h 50m
Deal found 7/9C$ 210
Thu 1/106:15 a.m. -
Nonstop3h 05m
Sat 3/107:07 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 216
Thu 19/115:05 p.m. -
1 stop4h 25m
Sun 22/117:55 a.m. -
Nonstop2h 45m
Deal found 6/9C$ 218
Thu 1/105:39 p.m. -
1 stop14h 53m
Sun 4/108:49 a.m. -
Nonstop3h 01m
Deal found 7/9C$ 221
Thu 1/101:38 p.m. -
Nonstop3h 02m
Mon 5/109:45 a.m. -
Nonstop2h 57m
Deal found 5/9C$ 223
Wed 28/104:45 p.m. -
Nonstop3h 05m
Mon 2/116:30 a.m. -
1 stop4h 10m
Deal found 9/9C$ 225
Thu 1/1011:30 a.m. -
Nonstop3h 09m
Wed 7/106:39 a.m. -
1 stop6h 49m
Deal found 8/9C$ 226
Thu 8/105:30 p.m. -
1 stop6h 15m
Mon 12/107:40 a.m. -
Nonstop2h 55m
Deal found 8/9C$ 230
Fri 2/104:36 p.m. -
1 stop5h 24m
Sun 11/107:04 a.m. -
Nonstop3h 02m
Deal found 7/9C$ 234
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 10 September 2026.
Sat 31/106:15 a.m. -
Nonstop3h 13m
Tue 3/118:54 a.m. -
1 stop7h 28m
Deal found 6/9C$ 207
Thu 19/115:05 p.m. -
1 stop4h 25m
Sun 22/117:55 a.m. -
Nonstop2h 45m
Deal found 6/9C$ 218
Thu 29/107:50 a.m. -
1 stop8h 14m
Mon 2/118:48 p.m. -
Nonstop2h 49m
Deal found 6/9C$ 207
Thu 1/103:43 p.m. -
1 stop7h 27m
Mon 5/108:07 p.m. -
Nonstop2h 51m
Deal found 5/9C$ 207
Thu 8/105:30 p.m. -
1 stop6h 15m
Tue 13/107:30 a.m. -
Nonstop2h 55m
Deal found 9/9C$ 230
Fri 16/1012:10 p.m. -
Nonstop3h 07m
Mon 19/108:49 a.m. -
Nonstop3h 01m
Deal found 9/9C$ 210
Thu 8/106:00 p.m. -
Nonstop3h 05m
Sun 11/106:45 a.m. -
Nonstop2h 50m
Deal found 6/9C$ 237
Fri 23/107:25 a.m. -
Nonstop3h 05m
Tue 27/105:35 a.m. -
1 stop6h 45m
Deal found 9/9C$ 265
Fri 11/125:30 p.m. -
1 stop5h 35m
Mon 14/127:00 a.m. -
Nonstop2h 40m
Deal found 8/9C$ 265
Sun 25/109:29 p.m. -
1 stop24h 31m
Sun 1/117:13 a.m. -
Nonstop3h 00m
Deal found 10/9C$ 283
Mon 23/115:30 p.m. -
1 stop5h 35m
Tue 1/127:00 a.m. -
Nonstop2h 40m
Deal found 10/9C$ 265
Fri 2/107:15 p.m. -
1 stop6h 20m
Mon 5/105:30 a.m. -
1 stop4h 15m
Deal found 5/9C$ 273
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 10 September 2026.
Mon 9/117:20 a.m. -
Nonstop3h 18m
Mon 16/119:52 a.m. -
Nonstop2h 56m
Deal found 10/9C$ 204
Mon 23/1111:02 a.m. -
Nonstop3h 11m
Tue 1/127:15 a.m. -
Nonstop2h 56m
Deal found 7/9C$ 210
Thu 1/106:15 a.m. -
Nonstop3h 05m
Sat 3/107:07 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 216
Thu 1/101:38 p.m. -
Nonstop3h 02m
Mon 5/109:45 a.m. -
Nonstop2h 57m
Deal found 5/9C$ 223
Sun 4/106:15 a.m. -
Nonstop3h 13m
Sun 25/109:08 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 237
Fri 30/107:27 p.m. -
Nonstop3h 06m
Mon 2/111:03 p.m. -
Nonstop2h 47m
Deal found 8/9C$ 251
Sun 11/106:15 a.m. -
Nonstop3h 13m
Tue 20/108:35 p.m. -
Nonstop2h 51m
Deal found 5/9C$ 258
Tue 10/116:22 p.m. -
Nonstop3h 07m
Mon 16/111:03 p.m. -
Nonstop2h 47m
Deal found 8/9C$ 263
Wed 30/91:38 p.m. -
Nonstop3h 02m
Mon 12/107:15 a.m. -
Nonstop2h 52m
Deal found 7/9C$ 270
Sun 27/97:15 a.m. -
Nonstop3h 10m
Sun 4/107:04 a.m. -
Nonstop3h 02m
Deal found 6/9C$ 272
Wed 30/96:00 p.m. -
Nonstop3h 00m
Thu 1/107:40 a.m. -
Nonstop2h 55m
Deal found 8/9C$ 278
Fri 9/107:27 p.m. -
Nonstop3h 06m
Sun 11/107:04 a.m. -
Nonstop3h 02m
Deal found 8/9C$ 285
Last-minute flights from San Diego to Seattle
Discover last-minute flight deals from San Diego to Seattle. Data last updated 10 September 2026 and is based on user searches.
Tue 29/94:10 p.m. -
2 stops5h 35m
Thu 1/106:55 a.m. -
1 stop5h 55m
Deal found 7/9C$ 210
Thu 1/106:15 a.m. -
Nonstop3h 05m
Sat 3/107:07 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 216
Thu 1/1010:25 a.m. -
1 stop11h 35m
Sun 11/109:08 p.m. -
Nonstop2h 51m
Deal found 7/9C$ 221
Thu 1/101:38 p.m. -
Nonstop3h 02m
Mon 5/109:45 a.m. -
Nonstop2h 57m
Deal found 5/9C$ 223
Thu 1/1011:30 a.m. -
Nonstop3h 09m
Wed 7/106:39 a.m. -
1 stop6h 49m
Deal found 8/9C$ 226
Fri 2/104:36 p.m. -
1 stop5h 24m
Sun 11/107:04 a.m. -
Nonstop3h 02m
Deal found 7/9C$ 234
Sat 3/101:10 p.m. -
1 stop5h 23m
Sun 4/107:04 a.m. -
Nonstop3h 02m
Deal found 10/9C$ 207
Sat 3/1010:55 a.m. -
1 stop7h 38m
Sat 3/108:35 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 240
Sun 4/106:15 a.m. -
Nonstop3h 13m
Sun 25/109:08 p.m. -
Nonstop2h 51m
Deal found 10/9C$ 237
Thu 8/105:30 p.m. -
1 stop6h 15m
Mon 12/107:40 a.m. -
Nonstop2h 55m
Deal found 8/9C$ 230
Wed 21/1012:10 p.m. -
Nonstop3h 07m
Wed 28/106:39 a.m. -
1 stop6h 49m
Deal found 7/9C$ 208
Wed 28/104:45 p.m. -
Nonstop3h 05m
Mon 2/116:30 a.m. -
1 stop4h 10m
Deal found 9/9C$ 225
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 10 September 2026.
Tue 20/107:05 a.m. -
Nonstop3h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 109
Tue 8/125:05 p.m. -
1 stop4h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 116
Wed 30/93:00 p.m. -
1 stop4h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 123
Sun 25/106:15 a.m. -
Nonstop3h 13m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/9C$ 127
Fri 9/102:24 p.m. -
1 stop7h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 136
Sat 3/101:10 p.m. -
1 stop5h 23m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 141
Fri 9/106:00 p.m. -
Nonstop3h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 143
Tue 19/18:33 p.m. -
1 stop16h 08m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 148
Sat 10/107:27 p.m. -
Nonstop3h 06m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 150
Fri 1/16:23 p.m. -
1 stop4h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/9C$ 154
Sun 25/106:20 a.m. -
1 stop5h 06m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 157
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 10 September 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 10 September 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
Quickest round-trip
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 10/10
3:59 p.m.-7:02 p.m.
Nonstop3h 03m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Mon 19/10
7:25 a.m.-10:30 a.m.
Nonstop3h 05m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 20/10
7:27 p.m.-10:33 p.m.
Nonstop3h 06m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Thu 10/12
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$ 109
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 20/10
7:05 a.m.-10:10 a.m.
Nonstop3h 05m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Mon 7/12
6:15 a.m.-1:38 p.m.
1 stop7h 23m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 141
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sun 7/3
6:15 a.m.-11:30 a.m.
1 stop5h 15m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 205
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 31/10
6:15 a.m.-9:28 a.m.
Nonstop3h 13m
Seattle/Tacoma Intl
Tue 3/11
8:54 a.m.-4:22 p.m.
1 stop7h 28m
C$ 207
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Thu 29/10
7:50 a.m.-4:04 p.m.
1 stop8h 14m
Seattle/Tacoma Intl
Mon 2/11
8:48 p.m.-11:37 p.m.
Nonstop2h 49m
C$ 207
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Thu 1/10
3:43 p.m.-11:10 p.m.
1 stop7h 27m
Seattle/Tacoma Intl
Mon 5/10
8:07 p.m.-10:58 p.m.
Nonstop2h 51m
C$ 207
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/9
Showing 1-10 of 22 resultsSorted by cheapest first
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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$ 272). Flying from San Diego to Seattle in July is currently the most expensive (average of C$ 449). 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 10 September 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 56% 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$ 434 in November.The cheapest round-trip price found within the last 5 days was C$ 204 on Delta (9 Nov-16 Nov).
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 10 September 2026.
The most flights from SAN to SEA are scheduled on a Wednesday (42 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 on average).
How often are flights from San Diego to Seattle delayed?
About 12% of weekly flights between San Diego and Seattle have experienced delays in the past year, with the average delay time being 154 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 1 times in the past calendar month.
How long is the flight from San Diego to Seattle?
Alaska Airlines can get you from San Diego to Seattle in just under 6h 49m. Your travel time can differ by up to . San Diego and Seattle are separated by a distance of 1691 km.
What are the most reliable airlines from San Diego to Seattle?
Consider Scandinavian Airlines (91%), Korean Air (86%) or American Airlines (81%) 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$ 81. While the most popular route (San Diego - Seattle/Tacoma Intl) can be booked for C$ 161 on average, our data indicates C$ 354 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$ 272). Flying from San Diego to Seattle in July is currently the most expensive (average of C$ 449). 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 10 September 2026.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 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.
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