$69+ Cheap flights from San Diego (SAN) to Washington
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.
SAN — SEA
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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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 San Diego to WashingtonExplore the most affordable flight options available from San Diego to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from San Diego to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:30 am -
Nonstop2h 50m
Sat 10/2410:45 am -
Nonstop2h 45m
Deal found 9/15![Southwest logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/77:59 pm -
Nonstop2h 51m
Tue 10/137:19 am -
Nonstop2h 52m
Deal found 9/17![Alaska Airlines logo]()
$140
This Southwest deal was found by Cheapflights users on 9/18. 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 10/104:55 pm -
Nonstop2h 40m
Tue 10/136:05 pm -
1 stop4h 05m
Deal found 9/18![Southwest logo]()
$147
This CheapOair deal was found by Cheapflights users on 9/18. 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.
Sat 10/246:25 am -
1 stop28h 29m
Thu 10/2912:02 pm -
1 stop11h 55m
Deal found 9/18![Frontier logo]()
$148
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:57 pm -
Nonstop2h 50m
Mon 11/167:03 am -
Nonstop2h 50m
Deal found 9/15![Alaska Airlines logo]()
$149
This Priceline deal was found by Cheapflights users on 9/17. 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.
Thu 10/157:59 pm -
Nonstop2h 51m
Tue 10/277:19 am -
Nonstop2h 52m
Deal found 9/17![Alaska Airlines logo]()
$150
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:40 pm -
Nonstop2h 38m
Mon 10/199:03 am -
Nonstop2h 33m
Deal found 9/18![Alaska Airlines logo]()
$154
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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 12/26:22 pm -
Nonstop3h 14m
Tue 12/87:00 am -
Nonstop2h 47m
Deal found 9/18![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 9/17. 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 10/156:00 pm -
1 stop5h 10m
Sat 10/177:50 am -
1 stop6h 35m
Deal found 9/17![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 9/18. 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.
Tue 12/17:20 am -
Nonstop3h 18m
Tue 12/83:00 pm -
Nonstop2h 50m
Deal found 9/18![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 9/14. 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 10/2911:15 am -
Nonstop2h 50m
Mon 11/210:55 am -
Nonstop2h 45m
Deal found 9/14![Southwest logo]()
$157
This Frontier deal was found by Cheapflights users on 9/18. 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.
Wed 12/26:30 am -
1 stop9h 10m
Mon 12/79:53 pm -
1 stop9h 36m
Deal found 9/18![Frontier logo]()
$158
Best flights from San Diego to WashingtonDiscover carefully curated flight deals from San Diego to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from San Diego to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 11/146:57 pm -
Nonstop2h 50m
Mon 11/167:03 am -
Nonstop2h 50m
Deal found 9/17![Alaska Airlines logo]()
$149
This Southwest deal was found by Cheapflights users on 9/17. 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 10/134:40 pm -
1 stop6h 20m
Tue 10/205:50 am -
2 stops5h 45m
Deal found 9/17![Southwest logo]()
$182
This Delta deal was found by Cheapflights users on 9/16. 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 10/3011:02 am -
1 stop7h 43m
Sun 11/13:30 pm -
1 stop7h 21m
Deal found 9/16![Delta logo]()
$211
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:00 am -
1 stop6h 15m
Mon 10/265:30 am -
1 stop4h 42m
Deal found 9/15![United Airlines logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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 12/16:15 am -
Nonstop3h 17m
Sat 12/123:00 pm -
Nonstop2h 45m
Deal found 9/18![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 9/18. 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 10/156:00 pm -
1 stop5h 10m
Sun 10/185:00 am -
1 stop6h 50m
Deal found 9/18![Southwest logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 11/56:45 pm -
Nonstop2h 50m
Mon 11/97:03 am -
Nonstop2h 50m
Deal found 9/17![Alaska Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 9/13. 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.
Sat 10/244:55 pm -
Nonstop2h 40m
Tue 10/2710:45 am -
Nonstop2h 25m
Deal found 9/13![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 9/18. 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 10/76:57 pm -
1 stop4h 53m
Tue 10/135:10 am -
1 stop7h 48m
Deal found 9/18![Delta logo]()
$234
This Southwest deal was found by Cheapflights users on 9/18. 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 10/134:15 pm -
2 stops5h 40m
Sun 10/186:45 am -
Nonstop2h 50m
Deal found 9/18![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 12/94:13 pm -
Nonstop2h 45m
Sat 12/1210:30 am -
Nonstop2h 37m
Deal found 9/17![Alaska Airlines logo]()
$203
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:15 pm -
2 stops5h 40m
Sun 10/255:25 am -
1 stop6h 25m
Deal found 9/15![Southwest logo]()
$198
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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 10/77:50 am -
1 stop7h 32m
Tue 10/137:19 am -
Nonstop2h 52m
Deal found 9/18![Alaska Airlines logo]()
$208
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:15 am -
1 stop5h 35m
Sun 10/2511:05 am -
Nonstop2h 50m
Deal found 9/15![Southwest logo]()
$201
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 12/167:11 pm -
1 stop4h 46m
Wed 12/237:00 am -
1 stop7h 55m
Deal found 9/16![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:59 pm -
Nonstop2h 51m
Sun 11/17:03 am -
Nonstop2h 50m
Deal found 9/15![Alaska Airlines logo]()
$213
This Southwest deal was found by Cheapflights users on 9/18. 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 12/212:35 pm -
2 stops10h 15m
Fri 12/116:30 am -
1 stop5h 05m
Deal found 9/18![Southwest logo]()
$207
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:15 am -
1 stop5h 13m
Tue 11/35:10 am -
2 stops12h 07m
Deal found 9/14![United Airlines logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/315:20 pm -
1 stop5h 10m
Tue 11/38:33 am -
Nonstop2h 48m
Deal found 9/16![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 9/13. 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.
Fri 10/236:00 pm -
Nonstop3h 05m
Mon 10/267:40 am -
Nonstop2h 55m
Deal found 9/13![Southwest logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:59 pm -
Nonstop2h 51m
Tue 10/66:00 am -
1 stop10h 49m
Deal found 9/15![Alaska Airlines logo]()
$221
This Southwest deal was found by Cheapflights users on 9/17. 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 10/1611:15 am -
Nonstop2h 50m
Fri 10/2312:15 pm -
Nonstop2h 45m
Deal found 9/17![Southwest logo]()
$209
This Delta deal was found by Cheapflights users on 9/16. 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.
Sat 10/177:45 am -
1 stop7h 05m
Sat 10/245:19 pm -
1 stop5h 21m
Deal found 9/16![Delta logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am -
Nonstop2h 43m
Thu 11/1210:34 am -
Nonstop2h 39m
Deal found 9/15![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 9/13. 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.
Fri 10/237:00 pm -
1 stop4h 10m
Mon 10/268:00 am -
Nonstop2h 25m
Deal found 9/13![Southwest logo]()
$213
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/297:27 pm -
Nonstop3h 06m
Mon 11/28:48 pm -
Nonstop2h 49m
Deal found 9/14![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:30 pm -
1 stop6h 35m
Tue 11/36:30 pm -
Nonstop2h 45m
Deal found 9/15![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 12/26:22 pm -
Nonstop3h 14m
Thu 12/102:11 pm -
1 stop5h 00m
Deal found 9/14![Alaska Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:35 pm -
2 stops9h 45m
Thu 11/193:35 pm -
Nonstop2h 20m
Deal found 9/15![Southwest logo]()
$220
This Southwest deal was found by Cheapflights users on 9/13. 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.
Fri 12/116:00 pm -
Nonstop3h 10m
Mon 12/145:15 am -
2 stops6h 30m
Deal found 9/13![Southwest logo]()
$222
Last-minute flights from San Diego to WashingtonDiscover last-minute flight deals from San Diego to Washington. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Washington. Data last updated September 18, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/77:59 pm -
Nonstop2h 51m
Tue 10/137:19 am -
Nonstop2h 52m
Deal found 9/17![Alaska Airlines logo]()
$140
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:59 pm -
Nonstop2h 51m
Mon 10/127:19 am -
Nonstop2h 52m
Deal found 9/16![Alaska Airlines logo]()
$149
This Southwest deal was found by Cheapflights users on 9/16. 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 10/77:00 am -
1 stop5h 05m
Mon 10/1212:15 pm -
Nonstop2h 45m
Deal found 9/16![Southwest logo]()
$158
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/76:57 pm -
1 stop4h 53m
Tue 10/135:10 am -
1 stop7h 48m
Deal found 9/16![Delta logo]()
$159
This Southwest deal was found by Cheapflights users on 9/18. 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 10/104:55 pm -
Nonstop2h 40m
Tue 10/136:05 pm -
1 stop4h 05m
Deal found 9/18![Southwest logo]()
$147
This Priceline deal was found by Cheapflights users on 9/17. 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.
Thu 10/157:59 pm -
Nonstop2h 51m
Tue 10/277:19 am -
Nonstop2h 52m
Deal found 9/17![Alaska Airlines logo]()
$150
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:40 pm -
Nonstop2h 38m
Mon 10/199:03 am -
Nonstop2h 33m
Deal found 9/18![Alaska Airlines logo]()
$154
This Southwest deal was found by Cheapflights users on 9/17. 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 10/156:00 pm -
1 stop5h 10m
Sat 10/177:50 am -
1 stop6h 35m
Deal found 9/17![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:30 am -
Nonstop2h 50m
Sat 10/2410:45 am -
Nonstop2h 45m
Deal found 9/15![Southwest logo]()
$139
This CheapOair deal was found by Cheapflights users on 9/18. 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.
Sat 10/246:25 am -
1 stop28h 29m
Thu 10/2912:02 pm -
1 stop11h 55m
Deal found 9/18![Frontier logo]()
$148
This Southwest deal was found by Cheapflights users on 9/14. 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 10/2911:15 am -
Nonstop2h 50m
Mon 11/210:55 am -
Nonstop2h 45m
Deal found 9/14![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 9/16. 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 10/3011:15 am -
Nonstop2h 50m
Mon 11/210:55 am -
Nonstop2h 45m
Deal found 9/16![Southwest logo]()
$166
One-way flights from San Diego to WashingtonSearch for one-way flight options from San Diego to Washington. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from San Diego to Washington. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/17. 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 10/204:45 pm -
Nonstop2h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$69
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/147:59 pm -
Nonstop2h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Alaska Airlines logo]()
$70
This Southwest deal was found by Cheapflights users on 9/18. 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 10/127:15 pm -
1 stop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Southwest logo]()
$79
This Southwest deal was found by Cheapflights users on 9/17. 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 10/1511:15 am -
Nonstop2h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/310:56 am -
2 stops31h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$80
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 10/136:57 pm -
1 stop4h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$80
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 11/166:45 pm -
Nonstop2h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Alaska Airlines logo]()
$83
This Southwest deal was found by Cheapflights users on 9/17. 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 10/134:15 pm -
2 stops5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$84
This Southwest deal was found by Cheapflights users on 9/17. 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 11/45:00 pm -
1 stop4h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$84
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 11/176:45 pm -
Nonstop2h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Alaska Airlines logo]()
$84
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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.
Tue 10/204:53 pm -
1 stop22h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$85
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 10/144:15 pm -
2 stops5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$85
Find flight deals from San Diego to Washington
Keep the following information in mind while searching for San Diego to Washington flight deals. Data was last updated September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $139 (Southwest) |
One-way from | $69 (Southwest) |
Popular in | July |
Cheapest in | January |
Average price | $234 |
Good round-trip deal | $117 or less |
Good one-way deal | $143 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Washington 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 18, 2026.
Use the filters below to find and compare flights from San Diego to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoPortland
SAN San Diego - PDX Portland
SANPDX
San Diego
Tue 10/20
2:10 pm-4:51 pm
Nonstop2h 41m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 12/16
4:13 pm-7:08 pm
Nonstop2h 55m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$70
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 11/18
6:45 pm-9:35 pm
Nonstop2h 50m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$70
San DiegoPortland
SAN San Diego - PDX Portland
SANPDX
San Diego
Mon 10/12
6:15 am-12:11 pm
1 stop5h 56m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoPortland
SAN San Diego - PDX Portland
SANPDX
San Diego
Mon 10/12
7:15 pm-1:25 am
1 stop6h 10m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Mon 12/14
7:59 pm-11:02 pm
Nonstop3h 03m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 10/14
7:59 pm-10:50 pm
Nonstop2h 51m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Tue 11/17
1:49 pm-8:57 pm
1 stop7h 08m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$80
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 11/11
11:02 am-5:01 pm
1 stop5h 59m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$80
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Thu 11/19
6:45 pm-9:35 pm
Nonstop2h 50m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$80
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Diego to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from San Diego with our price prediction graph.
SAN-PDX
SAN-GEG
SAN-BLI
SAN-SEA
SAN-PSC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Washington
SAN-USWA
SAN-PDX
SAN-GEG
SAN-BLI
SAN-SEA
What is the cheapest month to book a flight from San Diego to State of Washington?
Currently, October is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $199). Flying from San Diego to State of Washington in July is currently the most expensive (average of $324). 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 WA?
Find hourly flight availability from San Diego to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 18, 2026.
It’s optimal to fly from San Diego to State of Washington at noon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from San Diego to State of Washington
Explore weekly flight availability from San Diego to Washington. 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 18, 2026.
The most flights from SAN to USWA are scheduled on a Thursday (46 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (18 on average).
How much does it cost to fly round-trip from San Diego to State of Washington?
Airfare is below average for this route at the moment.
San Diego to State of Washington flights typically cost between $175 and $314 in October.The cheapest round-trip price found within the last 5 days was $153 on Alaska Airlines (Oct 15-Oct 19).
How far ahead should I book a flight from San Diego to State of Washington?
The best time to book flights from San Diego to State of Washington is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from San Diego to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Washington. Price data was last updated on July 11, 2026.
Travelers seeking maximum savings on their San Diego to State of Washington flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated September 18, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from San Diego to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from San Diego to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Diego to Washington
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Complete your trip
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Search flights from San Diego to Washington by cabin class
Find flights from San Diego to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Washington flights
Browse other San Diego and Washington flight options. Last updated on September 18, 2026.
Popular flight searches
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San Diego to Washington flights
Consider these flights traveling from San Diego to Washington.
Top 7 airlines flying from San Diego to Washington
Discover the top 7 airlines that operate flights from San Diego to Washington. 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$357 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$100 | Average$284 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$117 | Average$398 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$137 | Average$284 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$142 | Average$258 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$323 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$387 | Average$634 | FlexibilityNo cancel fee | On-time71% |