$78+ Cheap flights from Washington to San Diego (SAN)
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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Washington 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
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Cheapest flights from Washington to San DiegoExplore the most affordable flight options available from Washington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Washington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This SmartFares deal was found by Cheapflights users on 9/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:54 pm -
Nonstop2h 49m
Tue 10/275:20 pm -
Nonstop3h 06m
Deal found 9/24![Alaska Airlines logo]()
$137
This SmartFares deal was found by Cheapflights users on 9/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:07 pm -
Nonstop2h 51m
Sat 10/316:15 am -
Nonstop3h 13m
Deal found 9/25![Alaska Airlines logo]()
$140
This Trip.com deal was found by Cheapflights users on 9/28. 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 10/248:35 pm -
Nonstop2h 51m
Mon 10/268:28 pm -
Nonstop3h 09m
Deal found 9/28![Alaska Airlines logo]()
$151
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/287:19 am -
Nonstop2h 52m
Mon 11/26:45 pm -
Nonstop2h 50m
Deal found 9/28![Alaska Airlines logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Thu 12/37:00 am -
Nonstop2h 47m
Sat 12/56:22 pm -
Nonstop3h 14m
Deal found 9/29![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 9/28. 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 11/510:55 am -
Nonstop2h 45m
Mon 11/97:00 pm -
1 stop6h 05m
Deal found 9/28![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 9/24. 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 10/2410:45 am -
Nonstop2h 45m
Thu 10/293:20 pm -
2 stops8h 05m
Deal found 9/24![Southwest logo]()
$172
This Delta deal was found by Cheapflights users on 9/28. 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 10/295:04 pm -
1 stop6h 51m
Wed 11/411:02 am -
1 stop5h 56m
Deal found 9/28![Delta logo]()
$177
This Trip.com deal was found by Cheapflights users on 9/25. 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.
Fri 12/47:07 am -
Nonstop2h 55m
Mon 12/78:59 pm -
Nonstop2h 48m
Deal found 9/25![Alaska Airlines logo]()
$179
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/267:19 am -
Nonstop2h 52m
Fri 10/307:59 pm -
Nonstop2h 51m
Deal found 9/28![Alaska Airlines logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 12/27:00 am -
Nonstop2h 47m
Wed 12/166:22 pm -
Nonstop3h 14m
Deal found 9/28![Alaska Airlines logo]()
$182
This Priceline deal was found by Cheapflights users on 9/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:19 am -
Nonstop2h 52m
Wed 10/287:59 pm -
Nonstop2h 51m
Deal found 9/24![Alaska Airlines logo]()
$185
Best flights from Washington to San DiegoDiscover carefully curated flight deals from Washington to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Washington to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Tue 10/207:04 am -
Nonstop3h 02m
Mon 10/268:28 pm -
Nonstop3h 09m
Deal found 9/25![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 9/27. 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 11/56:30 am -
1 stop4h 10m
Sat 11/74:05 pm -
Nonstop3h 10m
Deal found 9/27![Southwest logo]()
$163
This Delta deal was found by Cheapflights users on 9/27. 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.
Wed 1/69:10 am -
1 stop7h 26m
Wed 1/135:20 pm -
1 stop6h 22m
Deal found 9/27![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/2910:40 am -
1 stop4h 52m
Sat 11/74:45 pm -
2 stops6h 46m
Deal found 9/24![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 9/23. 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 10/212:30 pm -
1 stop5h 00m
Wed 10/284:45 pm -
Nonstop3h 05m
Deal found 9/23![Southwest logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/224:58 pm -
2 stops20h 18m
Thu 10/298:32 pm -
1 stop27h 02m
Deal found 9/28![Multiple Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 9/23. 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 12/47:59 pm -
Nonstop2h 53m
Mon 12/73:52 pm -
Nonstop3h 13m
Deal found 9/23![Delta logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/267:19 am -
Nonstop2h 52m
Fri 10/307:59 pm -
Nonstop2h 51m
Deal found 9/28![Alaska Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 9/24. 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 10/172:05 pm -
Nonstop2h 55m
Mon 10/198:00 pm -
1 stop5h 00m
Deal found 9/24![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 9/28. 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 10/265:30 am -
1 stop5h 10m
Wed 10/284:45 pm -
Nonstop3h 05m
Deal found 9/28![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 10/229:08 pm -
Nonstop2h 51m
Thu 10/298:50 am -
1 stop12h 10m
Deal found 9/25![Alaska Airlines logo]()
$205
This Southwest deal was found by Cheapflights users on 9/28. 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.
Tue 10/277:35 am -
1 stop7h 35m
Tue 11/38:00 am -
1 stop5h 30m
Deal found 9/28![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 11/57:21 am -
1 stop9h 16m
Sat 11/75:20 pm -
Nonstop3h 07m
Deal found 9/28![Alaska Airlines logo]()
$210
This Southwest deal was found by Cheapflights users on 9/27. 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 11/115:15 am -
2 stops6h 30m
Wed 11/1812:35 pm -
2 stops10h 15m
Deal found 9/27![Southwest logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Fri 1/87:38 am -
Nonstop2h 52m
Mon 1/116:29 pm -
Nonstop2h 46m
Deal found 9/27![Alaska Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 9/23. 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.
Sun 12/66:35 pm -
Nonstop2h 45m
Wed 12/95:05 pm -
1 stop4h 25m
Deal found 9/23![Southwest logo]()
$188
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Sun 11/87:03 am -
Nonstop2h 50m
Wed 11/117:00 am -
1 stop4h 45m
Deal found 9/28![Alaska Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 9/24. 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 10/295:00 am -
2 stops7h 05m
Fri 11/62:25 pm -
Nonstop2h 45m
Deal found 9/24![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/208:27 am -
Nonstop2h 53m
Mon 11/27:39 pm -
Nonstop3h 16m
Deal found 9/28![Alaska Airlines logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Fri 12/42:11 pm -
1 stop5h 00m
Mon 12/76:22 pm -
Nonstop3h 14m
Deal found 9/28![Alaska Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 9/28. 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 10/245:20 am -
1 stop4h 47m
Sat 10/315:06 pm -
1 stop4h 35m
Deal found 9/28![Delta logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 10/295:07 am -
1 stop4h 49m
Thu 11/56:45 pm -
Nonstop2h 50m
Deal found 9/25![Alaska Airlines logo]()
$246
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 11/512:54 pm -
1 stop4h 43m
Sat 11/77:39 pm -
Nonstop3h 16m
Deal found 9/28![Alaska Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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.
Sat 10/2410:44 am -
1 stop6h 32m
Sat 10/315:20 pm -
1 stop5h 10m
Deal found 9/26![Alaska Airlines logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/92:56 pm -
1 stop5h 49m
Fri 11/137:39 pm -
Nonstop3h 16m
Deal found 9/27![Alaska Airlines logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Fri 10/2312:42 pm -
1 stop4h 46m
Mon 10/266:53 am -
1 stop5h 09m
Deal found 9/27![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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.
Sat 10/3112:42 pm -
2 stops5h 55m
Wed 11/47:10 am -
1 stop5h 04m
Deal found 9/23![Alaska Airlines logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 11/1212:54 pm -
1 stop4h 43m
Sun 11/157:00 am -
1 stop4h 42m
Deal found 9/25![Alaska Airlines logo]()
$308
This SmartFares deal was found by Cheapflights users on 9/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:04 pm -
1 stop6h 18m
Wed 11/187:00 am -
1 stop4h 46m
Deal found 9/27![Alaska Airlines logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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.
Tue 1/55:35 am -
1 stop7h 21m
Tue 1/128:36 am -
1 stop15h 15m
Deal found 9/26![Alaska Airlines logo]()
$333
Last-minute flights from Washington to San DiegoDiscover last-minute flight deals from Washington to San Diego. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to San Diego. Data last updated September 29, 2026 and is based on user searches.
This SmartFares deal was found by Cheapflights users on 9/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:54 pm -
Nonstop2h 49m
Tue 10/275:20 pm -
Nonstop3h 06m
Deal found 9/24![Alaska Airlines logo]()
$137
This Priceline deal was found by Cheapflights users on 9/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:19 am -
Nonstop2h 52m
Wed 10/287:59 pm -
Nonstop2h 51m
Deal found 9/24![Alaska Airlines logo]()
$185
This Southwest deal was found by Cheapflights users on 9/24. 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 10/215:40 am -
2 stops5h 55m
Wed 10/281:30 pm -
2 stops8h 55m
Deal found 9/24![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 9/24. 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 10/2312:15 pm -
Nonstop2h 45m
Mon 10/266:45 pm -
1 stop5h 50m
Deal found 9/24![Southwest logo]()
$195
This SmartFares deal was found by Cheapflights users on 9/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:07 pm -
Nonstop2h 51m
Sat 10/316:15 am -
Nonstop3h 13m
Deal found 9/25![Alaska Airlines logo]()
$140
This Trip.com deal was found by Cheapflights users on 9/28. 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 10/248:35 pm -
Nonstop2h 51m
Mon 10/268:28 pm -
Nonstop3h 09m
Deal found 9/28![Alaska Airlines logo]()
$151
This Southwest deal was found by Cheapflights users on 9/24. 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 10/245:30 am -
1 stop6h 25m
Thu 10/2911:15 am -
Nonstop2h 50m
Deal found 9/24![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/267:19 am -
Nonstop2h 52m
Fri 10/307:59 pm -
Nonstop2h 51m
Deal found 9/28![Alaska Airlines logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/287:19 am -
Nonstop2h 52m
Mon 11/26:45 pm -
Nonstop2h 50m
Deal found 9/28![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 9/28. 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 10/2810:50 am -
1 stop6h 25m
Fri 10/3011:15 am -
Nonstop2h 50m
Deal found 9/28![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 9/29. 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.
Wed 10/286:00 am -
1 stop6h 25m
Mon 11/210:57 am -
1 stop4h 47m
Deal found 9/29![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 9/28. 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 10/295:04 pm -
1 stop6h 51m
Wed 11/411:02 am -
1 stop5h 56m
Deal found 9/28![Delta logo]()
$177
One-way flights from Washington to San DiegoSearch for one-way flight options from Washington to San Diego. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Washington to San Diego. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Super.com deal was found by Cheapflights users on 9/28. 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.
Tue 10/204:27 pm -
1 stop7h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$78
This Southwest deal was found by Cheapflights users on 9/28. 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.
Tue 10/207:30 am -
Nonstop2h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$79
This Southwest deal was found by Cheapflights users on 9/28. 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 10/2410:45 am -
Nonstop2h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$79
This Super.com deal was found by Cheapflights users on 9/28. 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.
Sat 11/219:53 pm -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$83
This Southwest deal was found by Cheapflights users on 9/28. 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 11/126:30 am -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$84
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:13 pm -
1 stop22h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$85
This Southwest deal was found by Cheapflights users on 9/27. 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 10/223:55 pm -
1 stop5h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Wed 11/48:09 pm -
2 stops22h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 12/68:43 pm -
1 stop10h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$93
This Southwest deal was found by Cheapflights users on 9/28. 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 10/215:40 am -
2 stops5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 11/199:13 pm -
1 stop10h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Mon 11/239:53 pm -
1 stop17h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$97
Find flight deals from Washington to San Diego
Keep the following information in mind while searching for Washington to San Diego flight deals. Data was last updated September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (SmartFares) |
One-way from | $78 (Super.com) |
Popular in | December |
Cheapest in | January |
Average price | $224 |
Good round-trip deal | $157 or less |
Good one-way deal | $88 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 September 29, 2026.
Use the filters below to find and compare flights from Washington 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
Tue 10/20
6:40 pm-9:35 pm
Nonstop2h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 10/28
7:30 am-10:25 am
Nonstop2h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Thu 12/3
6:30 pm-9:20 pm
Nonstop2h 50m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Thu 11/12
7:55 am-10:40 am
Nonstop2h 45m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
Quickest round-trip
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 12/12
3:05 pm-5:45 pm
Nonstop2h 40m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Tue 11/10
6:30 pm-9:20 pm
Nonstop2h 50m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SpokaneSan Diego
GEG Spokane - SAN San Diego
GEGSAN
Spokane
Mon 11/23
7:00 am-12:51 pm
1 stop5h 51m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$89
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Wed 10/21
5:50 am-11:35 am
2 stops5h 45m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
SpokaneSan Diego
GEG Spokane - SAN San Diego
GEGSAN
Spokane
Tue 10/20
5:40 am-11:35 am
2 stops5h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
SpokaneSan Diego
GEG Spokane - SAN San Diego
GEGSAN
Spokane
Wed 10/21
5:40 am-11:35 am
2 stops5h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Washington with our price prediction graph.
SEA-SAN
GEG-SAN
PAE-SAN
BLI-SAN
PSC-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 Washington to San Diego
USWA-SAN
SEA-SAN
GEG-SAN
PAE-SAN
BLI-SAN
What is the cheapest month to book a flight from State of Washington to San Diego?
Currently, January is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $205). Flying from State of Washington to San Diego in December is currently the most expensive (average of $325). 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 WA to SAN?
Find hourly flight availability from Washington 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 September 29, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 36% on flights from State of Washington to San Diego by exploring options for tickets in the afternoon.
Weekly flight availability from State of Washington to San Diego
Explore weekly flight availability from Washington 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 September 29, 2026.
The most flights from USWA to SAN are scheduled on a Friday (36 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from State of Washington to San Diego?
Airfare is below average for this route at the moment.
State of Washington to San Diego flights typically cost between $178 and $410 in October.The cheapest round-trip price found within the last 5 days was $137 on Alaska Airlines (Oct 20-Oct 27).
How far ahead should I book a flight from State of Washington to San Diego?
To ensure you get the cheapest price possible for a flight from State of Washington 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 day to fly from State of Washington to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Washington to San Diego. Price data was last updated on May 30, 2026.
Travelers seeking maximum savings on their State of Washington to San Diego flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Washington 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
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Washington and San Diego flights
Browse other Washington and San Diego flight options. Last updated on September 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Washington to San Diego flights
Consider these flights traveling from Washington to San Diego.
Top 6 airlines flying from Washington to San Diego
Discover the top 6 airlines that operate flights from Washington 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 September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$87 | Average$259 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$102 | Average$292 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$117 | Average$266 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$119 | Average$389 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$178 | Average$384 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$227 | Average$505 | FlexibilityNo cancel fee | On-time71% |