Cheap flights from Seattle to San Diego 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
8 Oct — 15 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Diego are usually found in January or September, booked 88 days in advance, depart on a Tuesday or Monday and return on a Tuesday
Cheap flight deals from Seattle to San Diego
Enter your travel dates to find the best prices.
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Cheapest flights from Seattle to San Diego
Explore the most affordable flight options available from Seattle to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.
Thu 15/109:08 p.m. -
Nonstop2h 51m
Sun 18/106:15 a.m. -
Nonstop3h 13m
Deal found 6/9C$ 195
Wed 30/95:55 a.m. -
2 stops5h 50m
Sat 3/104:55 p.m. -
Nonstop3h 05m
Deal found 7/9C$ 196
Mon 26/104:54 p.m. -
Nonstop2h 49m
Mon 2/117:45 p.m. -
Nonstop3h 12m
Deal found 7/9C$ 200
Thu 19/1111:35 a.m. -
1 stop5h 40m
Mon 23/117:50 p.m. -
1 stop5h 25m
Deal found 7/9C$ 203
Tue 27/107:07 p.m. -
Nonstop2h 51m
Sat 31/1010:05 a.m. -
1 stop5h 04m
Deal found 7/9C$ 207
Fri 23/107:59 p.m. -
Nonstop2h 52m
Sun 25/106:57 p.m. -
Nonstop3h 08m
Deal found 7/9C$ 210
Wed 14/109:10 a.m. -
1 stop7h 41m
Wed 14/107:27 p.m. -
Nonstop3h 06m
Deal found 6/9C$ 216
Wed 14/107:15 a.m. -
Nonstop2h 52m
Thu 15/101:53 p.m. -
Nonstop3h 07m
Deal found 6/9C$ 217
Mon 5/109:10 a.m. -
1 stop7h 41m
Mon 5/108:28 p.m. -
Nonstop3h 09m
Deal found 7/9C$ 218
Tue 1/128:03 a.m. -
1 stop8h 35m
Tue 8/127:05 p.m. -
Nonstop3h 02m
Deal found 6/9C$ 221
Thu 22/107:15 a.m. -
Nonstop2h 52m
Sun 25/101:53 p.m. -
Nonstop3h 07m
Deal found 4/9C$ 224
Best flights from Seattle to San Diego
Discover carefully curated flight deals from Seattle to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.
Tue 27/107:07 p.m. -
Nonstop2h 51m
Sat 31/1010:05 a.m. -
1 stop5h 04m
Deal found 7/9C$ 207
Tue 27/107:59 p.m. -
Nonstop2h 52m
Sat 31/103:59 p.m. -
Nonstop3h 06m
Deal found 3/9C$ 218
Wed 14/106:40 p.m. -
Nonstop2h 55m
Mon 19/108:00 p.m. -
1 stop5h 00m
Deal found 3/9C$ 231
Thu 18/27:20 a.m. -
Nonstop2h 55m
Mon 22/26:50 a.m. -
Nonstop3h 15m
Deal found 4/9C$ 224
Tue 29/99:25 a.m. -
1 stop6h 30m
Wed 30/94:10 p.m. -
2 stops5h 35m
Deal found 7/9C$ 252
Tue 20/107:07 p.m. -
Nonstop2h 51m
Sun 25/109:14 p.m. -
1 stop11h 23m
Deal found 6/9C$ 283
Fri 2/105:10 p.m. -
Nonstop2h 50m
Mon 5/107:15 p.m. -
1 stop6h 25m
Deal found 3/9C$ 286
Mon 28/99:05 a.m. -
Nonstop2h 45m
Tue 13/104:15 p.m. -
2 stops5h 40m
Deal found 7/9C$ 292
Direct flights from Seattle to San Diego
Explore direct flight options from Seattle to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.
Thu 15/109:08 p.m. -
Nonstop2h 51m
Sun 18/106:15 a.m. -
Nonstop3h 13m
Deal found 6/9C$ 195
Mon 26/104:54 p.m. -
Nonstop2h 49m
Mon 2/117:45 p.m. -
Nonstop3h 12m
Deal found 7/9C$ 200
Fri 27/118:58 p.m. -
Nonstop2h 46m
Tue 8/129:00 a.m. -
Nonstop3h 03m
Deal found 7/9C$ 203
Fri 23/107:59 p.m. -
Nonstop2h 52m
Sun 25/106:57 p.m. -
Nonstop3h 08m
Deal found 7/9C$ 210
Wed 14/103:18 p.m. -
Nonstop2h 44m
Fri 16/107:45 a.m. -
Nonstop3h 13m
Deal found 6/9C$ 217
Tue 27/107:59 p.m. -
Nonstop2h 52m
Sat 31/103:59 p.m. -
Nonstop3h 06m
Deal found 3/9C$ 218
Thu 22/107:15 a.m. -
Nonstop2h 52m
Sun 25/101:53 p.m. -
Nonstop3h 07m
Deal found 4/9C$ 224
Fri 27/116:00 a.m. -
Nonstop2h 48m
Thu 3/129:00 a.m. -
Nonstop3h 03m
Deal found 6/9C$ 238
Thu 24/97:15 a.m. -
Nonstop2h 54m
Sat 26/94:23 p.m. -
Nonstop2h 57m
Deal found 3/9C$ 245
Thu 26/115:55 p.m. -
Nonstop2h 54m
Wed 2/127:20 a.m. -
Nonstop3h 18m
Deal found 6/9C$ 246
Last-minute flights from Seattle to San Diego
Discover last-minute flight deals from Seattle to San Diego. Data last updated 8 September 2026 and is based on user searches.
Wed 30/95:55 a.m. -
2 stops5h 50m
Sat 3/104:55 p.m. -
Nonstop3h 05m
Deal found 7/9C$ 196
Thu 1/107:08 a.m. -
1 stop4h 42m
Tue 6/102:59 p.m. -
Nonstop3h 03m
Deal found 7/9C$ 221
Mon 5/109:10 a.m. -
1 stop7h 41m
Mon 5/108:28 p.m. -
Nonstop3h 09m
Deal found 7/9C$ 218
Wed 14/109:10 a.m. -
1 stop7h 41m
Wed 14/107:27 p.m. -
Nonstop3h 06m
Deal found 6/9C$ 216
Wed 14/103:18 p.m. -
Nonstop2h 44m
Fri 16/107:45 a.m. -
Nonstop3h 13m
Deal found 6/9C$ 217
Thu 15/109:08 p.m. -
Nonstop2h 51m
Sun 18/106:15 a.m. -
Nonstop3h 13m
Deal found 6/9C$ 195
Thu 22/107:15 a.m. -
Nonstop2h 52m
Sun 25/101:53 p.m. -
Nonstop3h 07m
Deal found 4/9C$ 224
Thu 22/108:47 p.m. -
1 stop11h 49m
Fri 23/1012:10 p.m. -
Nonstop3h 07m
Deal found 7/9C$ 225
Fri 23/107:59 p.m. -
Nonstop2h 52m
Sun 25/106:57 p.m. -
Nonstop3h 08m
Deal found 7/9C$ 210
Mon 26/104:54 p.m. -
Nonstop2h 49m
Mon 2/117:45 p.m. -
Nonstop3h 12m
Deal found 7/9C$ 200
Tue 27/107:07 p.m. -
Nonstop2h 51m
Sat 31/1010:05 a.m. -
1 stop5h 04m
Deal found 7/9C$ 207
One-way flights from Seattle to San Diego
Search for one-way flight options from Seattle to San Diego. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.
Wed 7/107:15 a.m. -
Nonstop2h 52m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 109
Tue 1/127:59 p.m. -
Nonstop2h 57m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 4/9C$ 113
Thu 5/116:30 a.m. -
1 stop4h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/9C$ 116
Thu 19/115:40 a.m. -
1 stop7h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 123
Tue 29/95:55 a.m. -
2 stops5h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 130
Thu 19/113:58 p.m. -
Nonstop2h 49m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/9C$ 138
Wed 7/1011:54 a.m. -
1 stop5h 16m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 141
Sun 22/117:55 a.m. -
Nonstop2h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/9C$ 144
Fri 16/101:40 p.m. -
1 stop18h 32m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 148
Thu 1/109:45 a.m. -
Nonstop2h 57m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/9C$ 151
Thu 1/107:08 a.m. -
1 stop4h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 155
Mon 5/106:30 a.m. -
1 stop5h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/9C$ 158
Find flight deals from Seattle to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Diego (SAN). 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 8 September 2026.
Customize your flight search to find flights from Seattle to San Diego 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 8 September 2026.
Use the filters below to find and compare flights from Seattle to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Tue 29/9
8:30 a.m.-11:25 a.m.
Nonstop2h 55m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Mon 5/10
9:45 a.m.-12:42 p.m.
Nonstop2h 57m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
Quickest round-trip
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 22/11
6:00 a.m.-8:48 a.m.
Nonstop2h 48m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Mon 2/11
9:59 a.m.-12:58 p.m.
Nonstop2h 59m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 25/10
7:04 a.m.-10:06 a.m.
Nonstop3h 02m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 31/10
7:59 p.m.-10:51 p.m.
Nonstop2h 52m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 11/10
7:15 a.m.-10:07 a.m.
Nonstop2h 52m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 4/10
9:45 a.m.-12:42 p.m.
Nonstop2h 57m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 3/3
11:45 a.m.-2:36 p.m.
Nonstop2h 51m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 8/11
9:59 a.m.-12:58 p.m.
Nonstop2h 59m
San Diego
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 109
Flights are sorted by cheapest round-trip flights first.
Deals found on 7/9
Showing 1-10 of 20 resultsSorted by cheapest first
1
2
Best time to book a flight from Seattle to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Seattle with our price prediction graph.
SEA-SAN
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 Seattle to San Diego
Prices
Airlines
Delays
How far ahead should I book a flight from Seattle to San Diego?
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Diego. 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 Seattle to San Diego?
Currently, January is the cheapest month in which you can book a flight from Seattle to San Diego (average of C$ 267). Flying from Seattle to San Diego in December is currently the most expensive (average of C$ 457). 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 SEA to SAN?
Find hourly flight availability from Seattle to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 September 2026.
It’s typically best to fly out from Seattle to San Diego in the evening. Doing so could potentially save you 59% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Seattle to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Seattle to San Diego. Price data was last updated on 5 September 2026.
Travelers seeking maximum savings on their Seattle to San Diego flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost to fly round-trip from Seattle to San Diego?
Airfare is below average for this route at the moment.
Seattle to San Diego flights typically cost between C$ 221 and C$ 416 in October.The cheapest round-trip price found within the last 5 days was C$ 195 on Alaska Airlines (15 Oct-18 Oct).
Weekly flight availability from Seattle to San Diego
Explore weekly flight availability from Seattle to San Diego. 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 8 September 2026.
The most flights from SEA to SAN are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
How often are flights from Seattle to San Diego delayed?
About 17% of weekly flights between Seattle and San Diego have experienced delays in the past year, with the average delay time being 122 minutes.
What is the most punctual flight time for Seattle to San Diego flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon 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 Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to San Diego flights?
Over the past year, Delta has had the lowest number of delays on this route, with just 13% of flights being delayed.
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated 8 September 2026.
Read reviews from past customers who have flown Alaska Airlines and Delta
from Seattle to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
The good customer service team made you fell welcome on the flight.
Related info for your journey
Find useful and relevant information for your journey from Seattle to San Diego. 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 Seattle to San Diego?
To fly from Seattle to San Diego, you need to book a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN). Nonstop flights to San Diego from Seattle/Tacoma Intl take 2h 45m on average. When it comes time to book airfare, you have a few options: there are 10 outbound flights from Seattle/Tacoma Intl to San Diego offered by 2 different airlines.
How popular is this Seattle to San Diego flight route?
Flights from Seattle/Tacoma Intl to San Diego have been viewed 21 times in the past calendar month.
How long is the flight from Seattle to San Diego?
A quick flight from Seattle to San Diego can take about 2h 49m. Alaska Airlines provides one of the quickest options available for as low as C$ 207. Seattle and San Diego are separated by a distance of 1691 km. Generally, flights for this route are direct.
What are the cheapest airlines flying from Seattle to San Diego round-trip?
Delta, at C$ 137, was found to be the cheapest airline from Seattle to San Diego. An alternate airline flying to your destination would be Alaska Airlines. Delta is priced at 64% lower than the current average price of a flight leaving 3 months from now.
What are the most reliable airlines from Seattle to San Diego?
No one likes to see their flight delayed. When booking a flight from Seattle to San Diego consider choosing Korean Air (91%), KLM (77%) or Delta (75%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Seattle to San Diego?
The cheapest flight price from Seattle to San Diego is C$ 81. On average you can expect to pay C$ 270. The most popular route, (Seattle/Tacoma Intl - San Diego), can usually be booked for C$ 492.
Can I find deals for business class flights from Seattle to San Diego?
Yes. Cheapflights offers flight deals from Seattle to San Diego 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 Seattle to San Diego?
Currently, January is the cheapest month in which you can book a flight from Seattle to San Diego (average of C$ 267). Flying from Seattle to San Diego in December is currently the most expensive (average of C$ 457). 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 Seattle. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.
Discover the top 2 airlines that operate flights from Seattle to San Diego. 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 7,457,451 searches. Data last updated 8 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 Seattle to San Diego?
Deals for Seattle to San Diego 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 Seattle to San Diego?
Cheapflights simply makes it quick and affordable to book flights from Seattle to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Seattle to San Diego with no change fees?
Certainly. Search results for flights to San Diego from Seattle 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 Seattle to San Diego become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Seattle today and book when prices fit your budget.
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