This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
28 Oct — 4 Nov1
Return
1 adult
Economy
Return
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.
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 28 September 2026.
Tue 1/1206:15 -
Nonstop3h 17m
Mon 7/1220:09 -
Nonstop2h 50m
Deal found 25/9£118
Thu 15/1015:59 -
Nonstop3h 06m
Mon 19/1009:59 -
Nonstop2h 59m
Deal found 24/9£119
Thu 29/1018:00 -
Nonstop3h 05m
Thu 5/1106:30 -
1 stop4h 10m
Deal found 28/9£123
Thu 22/1018:00 -
Nonstop3h 05m
Mon 26/1005:30 -
1 stop4h 15m
Deal found 28/9£126
Wed 4/1117:00 -
1 stop4h 40m
Thu 5/1106:30 -
1 stop4h 10m
Deal found 25/9£127
Thu 29/1018:45 -
1 stop6h 15m
Mon 2/1106:30 -
1 stop4h 10m
Deal found 28/9£130
Thu 22/1016:20 -
1 stop6h 15m
Sat 24/1009:45 -
1 stop7h 15m
Deal found 28/9£134
Wed 11/1106:45 -
1 stop5h 25m
Sat 14/1106:45 -
2 stops9h 10m
Deal found 28/9£134
Fri 4/1206:15 -
Nonstop3h 17m
Tue 8/1207:05 -
Nonstop2h 55m
Deal found 25/9£137
Wed 23/1220:23 -
Nonstop3h 21m
Wed 30/1206:40 -
Nonstop2h 49m
Deal found 27/9£141
Fri 30/1018:00 -
Nonstop3h 05m
Thu 12/1106:30 -
1 stop4h 10m
Deal found 24/9£142
Thu 22/1019:15 -
1 stop6h 25m
Sun 25/1006:45 -
Nonstop2h 50m
Deal found 25/9£145
Best flights from San Diego to Seattle
Discover carefully curated flight deals from San Diego to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.
Thu 19/1117:45 -
Nonstop3h 10m
Mon 23/1107:55 -
Nonstop2h 45m
Deal found 27/9£118
Tue 1/1215:52 -
Nonstop3h 13m
Tue 8/1215:00 -
Nonstop2h 50m
Deal found 26/9£118
Sat 31/1009:20 -
Nonstop3h 08m
Tue 3/1120:13 -
1 stop12h 22m
Deal found 26/9£155
Tue 1/1215:52 -
Nonstop3h 13m
Thu 10/1207:15 -
Nonstop2h 56m
Deal found 26/9£118
Thu 29/1007:25 -
Nonstop3h 05m
Mon 2/1106:30 -
1 stop4h 10m
Deal found 28/9£123
Mon 9/1113:49 -
Nonstop3h 08m
Mon 16/1119:59 -
Nonstop2h 55m
Deal found 25/9£118
Thu 29/1018:00 -
Nonstop3h 05m
Thu 5/1106:30 -
1 stop4h 10m
Deal found 28/9£123
Mon 9/1118:30 -
1 stop5h 25m
Mon 16/1118:30 -
Nonstop2h 50m
Deal found 25/9£126
Thu 15/1013:45 -
1 stop6h 20m
Mon 19/1018:50 -
1 stop5h 25m
Deal found 24/9£134
Fri 30/1007:25 -
Nonstop3h 05m
Tue 3/1105:15 -
2 stops6h 30m
Deal found 27/9£149
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 28 September 2026.
Tue 1/1206:15 -
Nonstop3h 17m
Mon 7/1220:09 -
Nonstop2h 50m
Deal found 25/9£118
Thu 15/1015:59 -
Nonstop3h 06m
Mon 19/1009:59 -
Nonstop2h 59m
Deal found 24/9£119
Wed 18/1117:20 -
Nonstop3h 07m
Tue 1/1215:00 -
Nonstop2h 45m
Deal found 28/9£134
Fri 4/1206:15 -
Nonstop3h 17m
Tue 8/1207:05 -
Nonstop2h 55m
Deal found 25/9£137
Wed 23/1220:23 -
Nonstop3h 21m
Wed 30/1206:40 -
Nonstop2h 49m
Deal found 27/9£141
Sun 22/1113:49 -
Nonstop3h 08m
Wed 2/1219:59 -
Nonstop2h 53m
Deal found 28/9£152
Fri 4/1207:20 -
Nonstop3h 18m
Thu 10/1219:59 -
Nonstop2h 53m
Deal found 25/9£156
Thu 22/1007:25 -
Nonstop3h 05m
Mon 26/1017:10 -
Nonstop2h 50m
Deal found 26/9£157
Sat 17/1009:20 -
Nonstop3h 08m
Sat 17/1014:59 -
Nonstop2h 53m
Deal found 24/9£160
Fri 23/1009:20 -
Nonstop3h 08m
Mon 26/1020:07 -
Nonstop2h 51m
Deal found 28/9£164
Sun 6/1209:45 -
Nonstop3h 15m
Mon 7/1207:00 -
Nonstop2h 40m
Deal found 24/9£169
Sat 21/1106:15 -
Nonstop3h 14m
Tue 1/1215:00 -
Nonstop2h 45m
Deal found 28/9£171
Last-minute flights from San Diego to Seattle
Discover last-minute flight deals from San Diego to Seattle. Data last updated 28 September 2026 and is based on user searches.
Thu 15/1015:59 -
Nonstop3h 06m
Mon 19/1009:59 -
Nonstop2h 59m
Deal found 24/9£119
Wed 21/1011:10 -
Nonstop3h 07m
Mon 26/1021:08 -
Nonstop2h 51m
Deal found 28/9£118
Thu 22/1018:00 -
Nonstop3h 05m
Mon 26/1005:30 -
1 stop4h 15m
Deal found 28/9£126
Thu 22/1018:00 -
1 stop4h 35m
Wed 28/1005:50 -
2 stops5h 45m
Deal found 25/9£137
Thu 22/1019:15 -
1 stop6h 25m
Sun 25/1006:45 -
Nonstop2h 50m
Deal found 25/9£145
Wed 28/1011:50 -
2 stops9h 55m
Mon 2/1107:30 -
1 stop4h 20m
Deal found 25/9£134
Wed 28/1011:50 -
2 stops9h 55m
Tue 3/1105:15 -
2 stops6h 30m
Deal found 27/9£141
Thu 29/1018:00 -
Nonstop3h 05m
Thu 5/1106:30 -
1 stop4h 10m
Deal found 28/9£123
Thu 29/1018:45 -
1 stop6h 15m
Mon 2/1106:30 -
1 stop4h 10m
Deal found 28/9£130
Fri 30/1018:00 -
Nonstop3h 05m
Thu 12/1106:30 -
1 stop4h 10m
Deal found 24/9£142
Fri 30/1007:25 -
Nonstop3h 05m
Tue 3/1105:15 -
2 stops6h 30m
Deal found 24/9£149
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 28 September 2026.
Thu 19/1117:45 -
Nonstop3h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 24/9£60
Tue 3/1117:00 -
1 stop4h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9£63
Wed 21/1006:45 -
1 stop6h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 27/9£67
Fri 30/1018:00 -
Nonstop3h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9£78
Tue 20/1013:53 -
Nonstop3h 07m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9£82
Fri 6/1116:01 -
1 stop7h 17m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£86
Mon 26/1015:59 -
Nonstop3h 06m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9£90
Sun 1/1109:38 -
1 stop5h 01m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9£92
Sat 24/1006:15 -
2 stops8h 02m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 27/9£94
Tue 27/1010:05 -
1 stop5h 04m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£96
Sat 5/1206:20 -
2 stops10h 03m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/9£97
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 28 September 2026.
Customise 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 28 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 return flight
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 17/10
13:05-20:05
1 stop7h 00m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£67
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Wed 21/10
12:55-23:00
2 stops10h 05m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£71
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 20/10
19:27-22:33
Nonstop3h 06m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£82
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 5/1
14:30-20:48
2 stops6h 18m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£86
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 24/10
14:24-21:03
2 stops6h 39m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£94
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sun 22/11
13:49-16:57
Nonstop3h 08m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£101
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Sat 17/10
06:15-14:17
2 stops8h 02m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£105
Fastest return journey
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Fri 23/10
07:25-10:30
Nonstop3h 05m
Seattle/Tacoma Intl
Wed 31/12
00:00-00:00
Nonstop0h 00m
£105
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Thu 19/11
17:45-20:55
Nonstop3h 10m
Seattle/Tacoma Intl
Mon 23/11
07:55-10:40
Nonstop2h 45m
£118
San DiegoSeattle
SAN San Diego - SEA Seattle/Tacoma Intl
SANSEA
San Diego
Tue 1/12
15:52-19:05
Nonstop3h 13m
Seattle/Tacoma Intl
Tue 8/12
15:00-17:50
Nonstop2h 50m
£118
Flights are sorted by cheapest return flights first.
Deals found on 26/9
Showing 1-10 of 22 resultsSorted by cheapest first
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2
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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 return 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?
Booking 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 £149). Flying from San Diego to Seattle in July is currently the most expensive (average of £246). 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 28 September 2026.
One of the essential ways to save on airfare from San Diego to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.
How much does it cost for a return flight from San Diego to Seattle?
Airfare is typical for this route at the moment.
San Diego to Seattle flights typically cost between £118 and £235 in December.The cheapest return price found within the last 5 days was £118 on Alaska Airlines (1 Dec–8 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 28 September 2026.
The most flights from SAN to SEA are scheduled on a Friday (46 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (24 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 have 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?
Within the past month, 2 users have taken a look at flights from San Diego to Seattle/Tacoma Intl.
How long is the flight from San Diego to Seattle?
For as low as £118, Southwest can have you in Seattle from San Diego in 3h 10m. The distance between San Diego and Seattle is about 1051 mi. All flights are typically direct.
What are the most reliable airlines from San Diego to Seattle?
The top 3 most reliable airlines when flying from San Diego to Seattle are Scandinavian Airlines (88%), Korean Air (87%) and American Airlines (81%).
What are the cheapest flights from San Diego to Seattle?
While on average a flight from San Diego to Seattle is generally £2,196, our data shows the cheapest flight currently is £383. When looking at the most popular route, (San Diego - Seattle/Tacoma Intl), you can expect to pay £118 for that flight.
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 £149). Flying from San Diego to Seattle in July is currently the most expensive (average of £246). 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.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 28 September 2026.
Find the best flight deals on Cheapflights, where travellers 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 makes it easy to find San Diego to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from San Diego to Seattle?
Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from San Diego to Seattle with no change fees?
Yes, we can. To see specific flights from San Diego to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.
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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