$96+ Cheap flights from Seattle to San Diego (SEA - SAN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Wednesday or Saturday and return on a Friday
Cheap flight deals from Seattle to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to San DiegoExplore 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 August 17, 2026.
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 August 17, 2026.
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:49 pm -
Nonstop2h 55m
Sun 9/66:15 am -
Nonstop3h 05m
Deal found 8/12![Alaska Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:30 pm -
Nonstop2h 55m
Fri 9/117:05 pm -
1 stop5h 40m
Deal found 8/12![Southwest logo]()
$154
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:06 pm -
1 stop13h 59m
Sat 9/126:25 am -
1 stop8h 43m
Deal found 8/12![Frontier logo]()
$155
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:45 pm -
1 stop22h 32m
Tue 9/156:25 am -
1 stop8h 43m
Deal found 8/12![Frontier logo]()
$156
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:14 pm -
Nonstop3h 02m
Tue 9/84:23 pm -
Nonstop2h 57m
Deal found 8/14![Delta logo]()
$157
This Expedia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:27 pm -
1 stop7h 24m
Mon 9/219:03 pm -
1 stop12h 39m
Deal found 8/14![Frontier logo]()
$158
This Frontier deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:27 pm -
1 stop23h 31m
Mon 9/144:54 pm -
1 stop22h 14m
Deal found 8/14![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:27 pm -
1 stop7h 24m
Mon 9/219:03 pm -
1 stop12h 39m
Deal found 8/15![Frontier logo]()
$160
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:05 am -
Nonstop2h 45m
Mon 9/144:50 pm -
1 stop6h 10m
Deal found 8/14![Southwest logo]()
$163
This Kissandfly.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:06 pm -
1 stop13h 59m
Fri 9/114:54 pm -
1 stop22h 14m
Deal found 8/13![Frontier logo]()
$164
Best flights from Seattle to San DiegoDiscover 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 August 17, 2026.
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 August 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:54 pm -
Nonstop2h 49m
Thu 11/56:16 am -
Nonstop3h 12m
Deal found 8/16![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:40 pm -
Nonstop2h 50m
Mon 11/29:45 am -
Nonstop3h 15m
Deal found 8/16![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:45 am -
Nonstop2h 57m
Mon 9/147:00 am -
Nonstop3h 05m
Deal found 8/16![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:20 pm -
1 stop4h 57m
Sun 11/156:20 am -
1 stop5h 06m
Deal found 8/12![United Airlines logo]()
$205
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:30 am -
Nonstop2h 55m
Thu 10/227:25 am -
Nonstop3h 05m
Deal found 8/16![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/231:40 pm -
1 stop6h 15m
Sat 12/124:05 pm -
Nonstop3h 05m
Deal found 8/14![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:31 am -
Nonstop3h 07m
Mon 11/210:54 am -
1 stop5h 58m
Deal found 8/14![Alaska Airlines logo]()
$205
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:45 am -
Nonstop2h 57m
Sun 9/277:00 am -
Nonstop3h 05m
Deal found 8/14![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:20 pm -
1 stop5h 15m
Mon 9/284:30 pm -
1 stop4h 45m
Deal found 8/16![Southwest logo]()
$177
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:30 pm -
Nonstop2h 50m
Sun 9/68:40 am -
Nonstop3h 00m
Deal found 8/12![Southwest logo]()
$181
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:40 am -
Nonstop2h 55m
Mon 11/22:10 pm -
1 stop6h 35m
Deal found 8/16![Southwest logo]()
$192
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:35 pm -
Nonstop2h 45m
Tue 11/107:20 am -
Nonstop3h 05m
Deal found 8/13![Southwest logo]()
$198
Last-minute flights from Seattle to San DiegoDiscover last-minute flight deals from Seattle to San Diego. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San Diego. Data last updated August 17, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:49 pm -
Nonstop2h 55m
Sun 9/66:15 am -
Nonstop3h 05m
Deal found 8/12![Alaska Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:30 pm -
Nonstop2h 55m
Fri 9/117:05 pm -
1 stop5h 40m
Deal found 8/12![Southwest logo]()
$154
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:06 pm -
1 stop13h 59m
Sat 9/126:25 am -
1 stop8h 43m
Deal found 8/12![Frontier logo]()
$155
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:55 pm -
Nonstop2h 53m
Mon 9/77:03 am -
Nonstop3h 02m
Deal found 8/14![Delta logo]()
$157
This Kissandfly.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:06 pm -
1 stop13h 59m
Fri 9/114:54 pm -
1 stop22h 14m
Deal found 8/13![Frontier logo]()
$164
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:45 pm -
1 stop22h 32m
Tue 9/156:25 am -
1 stop8h 43m
Deal found 8/12![Frontier logo]()
$156
This Frontier deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:27 pm -
1 stop23h 31m
Mon 9/144:54 pm -
1 stop22h 14m
Deal found 8/14![Frontier logo]()
$159
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:05 am -
Nonstop2h 45m
Mon 9/144:50 pm -
1 stop6h 10m
Deal found 8/14![Southwest logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:27 pm -
1 stop7h 24m
Mon 9/219:03 pm -
1 stop12h 39m
Deal found 8/15![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:27 pm -
1 stop7h 24m
Mon 9/219:03 pm -
1 stop12h 39m
Deal found 8/14![Frontier logo]()
$158
One-way flights from Seattle to San DiegoSearch for one-way flight options from Seattle to San Diego. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Seattle to San Diego. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:27 pm -
2 stops17h 15m
Deal found 8/13![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:45 pm -
1 stop19h 14m
Deal found 8/16![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:27 pm -
1 stop7h 24m
Deal found 8/16![Frontier logo]()
$98
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:50 am -
Nonstop2h 55m
Deal found 8/12![Southwest logo]()
$99
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:40 am -
Nonstop2h 55m
Deal found 8/13![Southwest logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:00 pm -
2 stops22h 06m
Deal found 8/16![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:00 pm -
2 stops22h 06m
Deal found 8/16![Frontier logo]()
$102
This Super.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:35 pm -
1 stop19h 30m
Deal found 8/13![Frontier logo]()
$103
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:40 am -
Nonstop2h 55m
Deal found 8/14![Southwest logo]()
$104
This Expedia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:41 pm -
1 stop28h 18m
Deal found 8/13![Frontier logo]()
$105
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:45 pm -
1 stop22h 32m
Deal found 8/13![Frontier logo]()
$106
This Jetabroad deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:55 pm -
1 stop14h 06m
Deal found 8/16![Frontier logo]()
$107
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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (Trip.com) |
One-way from | $96 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $266 |
Good round-trip deal | $180 or less |
Good one-way deal | $144 or less |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated August 17, 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
Cheapest round-trip
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 10/28
4:54 pm-7:43 pm
Nonstop2h 49m
San Diego
Thu 11/5
6:16 am-9:28 am
Nonstop3h 12m
$157
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 10/28
6:40 pm-9:30 pm
Nonstop2h 50m
San Diego
Mon 11/2
9:45 am-1:00 pm
Nonstop3h 15m
$157
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 10/21
7:30 am-10:25 am
Nonstop2h 55m
San Diego
Thu 10/22
7:25 am-10:30 am
Nonstop3h 05m
$157
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Mon 11/23
1:40 pm-7:55 pm
1 stop6h 15m
San Diego
Sat 12/12
4:05 pm-7:10 pm
Nonstop3h 05m
$167
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 9/26
2:20 pm-7:35 pm
1 stop5h 15m
San Diego
Mon 9/28
4:30 pm-9:15 pm
1 stop4h 45m
$177
Quickest round-trip
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 9/2
5:30 pm-8:20 pm
Nonstop2h 50m
San Diego
Sun 9/6
8:40 am-11:40 am
Nonstop3h 00m
$181
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Fri 10/30
7:40 am-10:35 am
Nonstop2h 55m
San Diego
Mon 11/2
2:10 pm-8:45 pm
1 stop6h 35m
$192
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Fri 9/11
9:45 am-12:42 pm
Nonstop2h 57m
San Diego
Mon 9/14
7:00 am-10:05 am
Nonstop3h 05m
$197
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Thu 11/5
6:35 pm-9:20 pm
Nonstop2h 45m
San Diego
Tue 11/10
7:20 am-10:25 am
Nonstop3h 05m
$198
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Thu 11/12
12:20 pm-5:17 pm
1 stop4h 57m
San Diego
Sun 11/15
6:20 am-11:26 am
1 stop5h 06m
$205
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Seattle to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San Diego in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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?
To ensure you get the cheapest price possible for a flight from Seattle to San Diego, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 $193). Flying from Seattle to San Diego in June is currently the most expensive (average of $328). 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 August 17, 2026.
It’s optimal to fly from Seattle to San Diego at noon. By choosing this option you can save up to 3% on the cost of your flight, compared to a flight in the evening.
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 August 8, 2026.
Travelers seeking maximum savings on their Seattle to San Diego flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Seattle to San Diego delayed?
About 16% 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 last year, Delta have had the lowest number of delays on this route, with just 13% of flights being delayed.
The best insider tips for Seattle to San Diego flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to San Diego trip
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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 August 17, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Seattle to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Top 7 airlines flying from Seattle to San Diego
Discover the top 7 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 2,558,603 searches. Data last updated August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$87 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$297 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$113 | Average$268 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$121 | Average$308 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$133 | Average$274 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$178 | Average$274 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$297 | Average$667 | FlexibilityNo cancel fee | On-time71% |