$79+ Cheap flights from Boise (BOI) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Nov 9 — Nov 161
Round-trip
1 adult, Economy
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Cheapest flights from Boise to WashingtonExplore the most affordable flight options available from Boise to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2026.
Explore the most affordable flight options available from Boise to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2026.
This Southwest deal was found by Cheapflights users on 10/7. 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 10/3111:35 am -
1 stop7h 20m
Mon 11/24:05 pm -
1 stop7h 45m
Deal found 10/7![Southwest logo]()
$198
This Expedia deal was found by Cheapflights users on 10/7. 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.
Sat 12/123:40 pm -
Nonstop1h 04m
Mon 12/144:21 pm -
Nonstop1h 00m
Deal found 10/7![Alaska Airlines logo]()
$212
This Southwest deal was found by Cheapflights users on 10/8. 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 11/25:35 pm -
1 stop8h 20m
Wed 11/47:00 am -
1 stop6h 15m
Deal found 10/8![Southwest logo]()
$215
This Southwest deal was found by Cheapflights users on 10/6. 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 12/233:10 pm -
2 stops11h 05m
Thu 1/72:00 pm -
1 stop8h 05m
Deal found 10/6![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 10/6. 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 11/58:59 am -
Nonstop1h 55m
Thu 11/57:35 pm -
Nonstop1h 33m
Deal found 10/6![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 11/106:21 pm -
Nonstop1h 36m
Tue 11/173:59 pm -
1 stop5h 59m
Deal found 10/8![Alaska Airlines logo]()
$218
This Southwest deal was found by Cheapflights users on 10/5. 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 11/246:50 pm -
1 stop7h 30m
Tue 12/12:15 pm -
1 stop8h 00m
Deal found 10/5![Southwest logo]()
$218
This Trip.com deal was found by Cheapflights users on 10/5. 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 11/77:08 am -
Nonstop1h 12m
Sun 11/88:00 am -
Nonstop1h 09m
Deal found 10/5![Alaska Airlines logo]()
$220
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 11/51:53 pm -
Nonstop1h 38m
Tue 11/178:05 pm -
1 stop18h 23m
Deal found 10/6![Alaska Airlines logo]()
$221
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 11/58:59 pm -
Nonstop1h 38m
Tue 11/106:59 pm -
1 stop19h 29m
Deal found 10/8![Alaska Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 10/5. 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 11/510:30 am -
1 stop4h 45m
Thu 11/1212:05 pm -
2 stops11h 05m
Deal found 10/5![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 12/14:10 pm -
Nonstop1h 44m
Fri 12/49:15 pm -
1 stop17h 12m
Deal found 10/6![Alaska Airlines logo]()
$223
Best flights from Boise to WashingtonDiscover carefully curated flight deals from Boise to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
Discover carefully curated flight deals from Boise to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
This Southwest deal was found by Cheapflights users on 10/6. 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 12/27:20 am -
1 stop7h 10m
Thu 12/31:35 pm -
1 stop8h 00m
Deal found 10/6![Southwest logo]()
$198
This Alaska Airlines deal was found by Cheapflights users on 10/7. 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 11/108:59 pm -
Nonstop1h 38m
Thu 11/128:54 am -
1 stop11h 39m
Deal found 10/7![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 10/9. 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.
Mon 3/18:40 am -
Nonstop1h 57m
Thu 3/45:45 pm -
Nonstop1h 32m
Deal found 10/9![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 10/6. 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 12/27:20 am -
1 stop7h 10m
Wed 12/23:20 pm -
1 stop6h 30m
Deal found 10/6![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 10/9. 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 11/125:00 am -
1 stop6h 05m
Mon 11/165:15 am -
1 stop6h 10m
Deal found 10/9![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 10/7. 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 12/58:30 am -
1 stop9h 40m
Sun 12/69:30 pm -
Nonstop1h 29m
Deal found 10/7![Alaska Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 10/5. 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 11/1012:40 pm -
2 stops10h 40m
Wed 11/1111:35 am -
2 stops9h 05m
Deal found 10/5![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 10/9. 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 11/215:59 pm -
1 stop4h 03m
Sun 11/223:23 pm -
1 stop6h 03m
Deal found 10/9![Delta logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 12/44:47 pm -
1 stop17h 45m
Sun 12/611:51 am -
Nonstop1h 28m
Deal found 10/6![Alaska Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 10/9. 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 12/811:25 am -
2 stops9h 15m
Fri 12/111:40 pm -
1 stop6h 30m
Deal found 10/9![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 10/7. 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 11/48:59 am -
1 stop4h 03m
Wed 11/113:33 pm -
1 stop5h 53m
Deal found 10/7![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 10/5. 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 11/135:35 pm -
1 stop8h 25m
Mon 11/161:00 pm -
2 stops8h 50m
Deal found 10/5![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 10/5. 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 10/272:27 pm -
1 stop20h 19m
Sat 10/3110:44 am -
1 stop10h 17m
Deal found 10/5![Alaska Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 10/6. 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 12/43:30 pm -
1 stop8h 00m
Sun 12/62:35 pm -
1 stop9h 50m
Deal found 10/6![Southwest logo]()
$252
This Delta deal was found by Cheapflights users on 10/7. 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 12/196:09 pm -
1 stop5h 39m
Sun 1/35:10 am -
1 stop5h 03m
Deal found 10/7![Delta logo]()
$343
This Southwest deal was found by Cheapflights users on 10/5. 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 10/286:15 am -
2 stops8h 00m
Sun 11/15:50 am -
1 stop5h 00m
Deal found 10/5![Southwest logo]()
$253
This Southwest deal was found by Cheapflights users on 10/6. 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 10/316:00 am -
2 stops7h 35m
Tue 11/35:15 am -
1 stop6h 10m
Deal found 10/6![Southwest logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 11/210:13 am -
1 stop27h 01m
Wed 11/412:30 pm -
1 stop8h 03m
Deal found 10/6![Alaska Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 10/10. 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 11/176:40 am -
1 stop6h 08m
Tue 11/243:33 pm -
1 stop5h 53m
Deal found 10/10![Delta logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 10/242:06 pm -
1 stop5h 00m
Mon 10/265:00 pm -
Nonstop0h 57m
Deal found 10/9![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 10/8. 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 1/56:00 am -
1 stop4h 38m
Tue 1/126:20 am -
1 stop7h 02m
Deal found 10/8![Delta logo]()
$387
This Southwest deal was found by Cheapflights users on 10/8. 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 12/185:55 am -
1 stop7h 15m
Wed 12/231:45 pm -
2 stops10h 20m
Deal found 10/8![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 10/247:30 am -
Nonstop1h 13m
Wed 10/2810:10 am -
Nonstop1h 12m
Deal found 10/9![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 1/59:45 pm -
Nonstop1h 18m
Tue 1/125:47 pm -
1 stop3h 35m
Deal found 10/8![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 12/14:20 pm -
1 stop7h 38m
Sat 12/52:06 pm -
1 stop4h 59m
Deal found 10/8![Alaska Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 10/5. 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 10/257:05 pm -
2 stops7h 00m
Tue 10/273:25 pm -
2 stops6h 50m
Deal found 10/5![Southwest logo]()
$343
This Expedia deal was found by Cheapflights users on 10/8. 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.
Fri 11/204:54 pm -
Nonstop1h 01m
Sat 11/215:32 pm -
Nonstop0h 59m
Deal found 10/8![Alaska Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 10/5. 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 11/256:50 pm -
1 stop7h 30m
Fri 11/275:00 am -
1 stop11h 00m
Deal found 10/5![Southwest logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 11/141:53 pm -
1 stop10h 52m
Wed 11/181:58 pm -
1 stop8h 51m
Deal found 10/6![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 10/7. 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 10/2412:08 pm -
1 stop3h 42m
Mon 10/2612:42 pm -
1 stop4h 51m
Deal found 10/7![Delta logo]()
$605
Last-minute flights from Boise to WashingtonDiscover last-minute flight deals from Boise to Washington. Data last updated October 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Washington. Data last updated October 10, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/7. 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 10/3111:35 am -
1 stop7h 20m
Mon 11/24:05 pm -
1 stop7h 45m
Deal found 10/7![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 10/8. 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 11/25:35 pm -
1 stop8h 20m
Wed 11/47:00 am -
1 stop6h 15m
Deal found 10/8![Southwest logo]()
$215
This Southwest deal was found by Cheapflights users on 10/8. 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 11/25:35 pm -
1 stop7h 30m
Fri 11/65:50 pm -
1 stop5h 05m
Deal found 10/8![Southwest logo]()
$223
This Travelocity deal was found by Cheapflights users on 10/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:37 am -
Nonstop1h 43m
Tue 11/108:33 am -
1 stop5h 54m
Deal found 10/6![Alaska Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 10/6. 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 11/58:59 am -
Nonstop1h 55m
Thu 11/57:35 pm -
Nonstop1h 33m
Deal found 10/6![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 11/51:53 pm -
Nonstop1h 38m
Tue 11/178:05 pm -
1 stop18h 23m
Deal found 10/6![Alaska Airlines logo]()
$221
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 11/58:59 pm -
Nonstop1h 38m
Tue 11/106:59 pm -
1 stop19h 29m
Deal found 10/8![Alaska Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 10/5. 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 11/510:30 am -
1 stop4h 45m
Thu 11/1212:05 pm -
2 stops11h 05m
Deal found 10/5![Southwest logo]()
$222
This Trip.com deal was found by Cheapflights users on 10/5. 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 11/77:08 am -
Nonstop1h 12m
Sun 11/88:00 am -
Nonstop1h 09m
Deal found 10/5![Alaska Airlines logo]()
$220
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 11/106:21 pm -
Nonstop1h 36m
Tue 11/173:59 pm -
1 stop5h 59m
Deal found 10/8![Alaska Airlines logo]()
$218
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 11/134:16 pm -
Nonstop1h 41m
Fri 11/137:25 pm -
1 stop25h 55m
Deal found 10/8![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 10/5. 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 11/246:50 pm -
1 stop7h 30m
Tue 12/12:15 pm -
1 stop8h 00m
Deal found 10/5![Southwest logo]()
$218
One-way flights from Boise to WashingtonSearch for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
Search for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
This Delta deal was found by Cheapflights users on 10/8. 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.
Sun 11/157:18 pm -
Nonstop1h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$79
This Cheapflightsfares deal was found by Cheapflights users on 10/7. 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 10/292:49 pm -
1 stop19h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$86
This Southwest deal was found by Cheapflights users on 10/7. 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 11/68:30 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/52:49 pm -
1 stop19h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$91
This Southwest deal was found by Cheapflights users on 10/8. 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 11/1011:25 am -
2 stops9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$94
This Mytrip deal was found by Cheapflights users on 10/9. 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.
Sat 10/314:18 pm -
Nonstop1h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Alaska Airlines logo]()
$98
This Super.com deal was found by Cheapflights users on 10/6. 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.
Mon 10/262:50 pm -
1 stop21h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$99
This Southwest deal was found by Cheapflights users on 10/8. 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 12/82:50 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 12/109:51 pm -
1 stop16h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$100
This Delta deal was found by Cheapflights users on 10/8. 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 11/215:59 pm -
Nonstop1h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/82:49 pm -
1 stop19h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$113
This Alaska Airlines deal was found by Cheapflights users on 10/5. 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 11/44:10 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Alaska Airlines logo]()
$139
Find flight deals from Boise to Washington
Keep the following information in mind while searching for Boise to Washington flight deals. Data was last updated October 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $198 (Southwest) |
One-way from | $79 (Delta) |
Popular in | June |
Cheapest in | January |
Average price | $245 |
Good round-trip deal | $287 or less |
Good one-way deal | $210 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise 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 October 10, 2026.
Use the filters below to find and compare flights from Boise to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 1/5
5:58 pm-6:40 pm
Nonstop1h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$79
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Mon 11/9
6:40 am-7:40 am
Nonstop2h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$79
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Thu 1/7
5:58 pm-6:40 pm
Nonstop1h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$79
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sun 11/8
6:37 am-7:20 am
Nonstop1h 43m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$79
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Fri 11/6
8:30 pm-1:20 am
1 stop5h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$89
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sat 11/7
4:35 pm-8:15 pm
1 stop4h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$89
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Wed 1/6
11:55 am-5:05 pm
1 stop6h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$89
BoiseSpokane
BOI Boise Air Term. Gowen Fld - GEG Spokane
BOIGEG
Boise Air Term. Gowen Fld
Wed 11/4
7:20 am-1:30 pm
1 stop7h 10m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
BoiseSpokane
BOI Boise Air Term. Gowen Fld - GEG Spokane
BOIGEG
Boise Air Term. Gowen Fld
Tue 12/8
2:50 pm-7:55 pm
1 stop6h 05m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
BoiseSpokane
BOI Boise Air Term. Gowen Fld - GEG Spokane
BOIGEG
Boise Air Term. Gowen Fld
Tue 10/27
7:45 am-1:15 pm
1 stop6h 30m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Boise to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Boise with our price prediction graph.
BOI-SEA
BOI-GEG
BOI-PSC
BOI-PAE
BOI-PUW
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 Boise to Washington
BOI-USWA
BOI-SEA
BOI-GEG
BOI-PSC
BOI-PAE
What is the cheapest month to book a flight from Boise to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Boise to State of Washington (average of $154). Flying from Boise to State of Washington in June is currently the most expensive (average of $327). 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 BOI to WA?
Find hourly flight availability from Boise 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 October 10, 2026.
One of the essential ways to save on airfare from Boise to State of Washington is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 20% on airfare.
Weekly flight availability from Boise to State of Washington
Explore weekly flight availability from Boise 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 October 10, 2026.
The most flights from BOI to USWA are scheduled on a Friday (47 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Boise to State of Washington?
Airfare is below average for this route at the moment.
Boise to State of Washington flights typically cost between $217 and $354 in January.The cheapest round-trip price found within the last 5 days was $211 on Alaska Airlines (Jan 9-Jan 9).
How far ahead should I book a flight from Boise to State of Washington?
The best time to book flights from Boise to State of Washington is 90 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 Boise to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from Boise to Washington. Price data was last updated on October 10, 2026.
Travelers seeking maximum savings on their Boise to State of Washington flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday evenings 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 October 10, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Delta from Boise to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
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Boise and Washington flights
Browse other Boise and Washington flight options. Last updated on October 10, 2026.
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Boise to Washington flights
Consider these flights traveling from Boise to Washington.
Top 2 airlines flying from Boise to Washington
Discover the top 2 airlines that operate flights from Boise 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 October 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$225 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$334 | FlexibilityNo cancel fee | On-time75% |