$99+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Washington 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 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 September 17, 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 September 17, 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.
Tue 10/137:40 am -
1 stop6h 35m
Tue 10/203:25 pm -
1 stop6h 05m
Deal found 9/15![Southwest logo]()
$198
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.
Tue 10/204:24 pm -
Nonstop0h 59m
Tue 10/275:00 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$207
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 10/1712:58 pm -
Nonstop1h 34m
Sat 10/173:33 pm -
1 stop5h 28m
Deal found 9/16![Alaska Airlines logo]()
$208
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.
Tue 10/137:40 am -
1 stop6h 35m
Wed 10/145:40 am -
1 stop4h 40m
Deal found 9/13![Southwest logo]()
$210
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.
Tue 10/67:00 am -
1 stop4h 29m
Tue 10/612:48 pm -
Nonstop1h 35m
Deal found 9/15![Alaska Airlines logo]()
$211
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.
Thu 10/226:50 am -
1 stop5h 00m
Sat 10/246:05 am -
1 stop5h 50m
Deal found 9/15![Southwest logo]()
$211
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.
Fri 10/166:04 pm -
Nonstop1h 43m
Fri 10/169:24 pm -
1 stop23h 37m
Deal found 9/14![Alaska Airlines logo]()
$214
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:02 pm -
Nonstop1h 13m
Sat 11/710:06 am -
Nonstop1h 07m
Deal found 9/16![Alaska Airlines logo]()
$215
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 10/194:24 pm -
Nonstop0h 59m
Tue 10/275:00 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$217
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 10/247:30 am -
Nonstop1h 13m
Wed 10/2810:10 am -
Nonstop1h 12m
Deal found 9/15![Alaska Airlines logo]()
$217
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.
Sat 10/247:20 am -
1 stop7h 00m
Wed 10/285:40 am -
1 stop4h 40m
Deal found 9/14![Southwest logo]()
$218
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.
Sat 11/145:30 am -
2 stops8h 20m
Tue 11/172:15 pm -
2 stops7h 35m
Deal found 9/14![Southwest logo]()
$221
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 September 17, 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 September 17, 2026.
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.
Wed 10/281:50 pm -
1 stop7h 00m
Sat 10/3111:45 am -
1 stop6h 40m
Deal found 9/13![Southwest logo]()
$227
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.
Wed 10/216:43 am -
1 stop5h 56m
Tue 10/277:00 am -
Nonstop1h 08m
Deal found 9/15![Alaska Airlines logo]()
$227
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:17 pm -
1 stop3h 40m
Sun 11/155:30 am -
1 stop5h 03m
Deal found 9/15![Delta logo]()
$297
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.
Fri 10/238:46 pm -
Nonstop1h 08m
Sat 10/2410:10 am -
Nonstop1h 12m
Deal found 9/16![Alaska Airlines logo]()
$227
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.
Fri 10/168:46 pm -
Nonstop1h 08m
Tue 10/207:00 am -
Nonstop1h 08m
Deal found 9/16![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:35 pm -
1 stop8h 25m
Mon 11/92:35 pm -
1 stop9h 55m
Deal found 9/12![Southwest logo]()
$252
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 10/131:25 pm -
2 stops9h 55m
Tue 10/2012:20 pm -
2 stops9h 55m
Deal found 9/15![Southwest logo]()
$257
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.
Wed 10/219:12 am -
1 stop3h 34m
Sat 10/247:20 am -
1 stop4h 15m
Deal found 9/15![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:36 pm -
Nonstop1h 48m
Mon 11/94:04 pm -
Nonstop1h 33m
Deal found 9/12![Delta logo]()
$307
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.
Thu 11/510:30 am -
1 stop4h 45m
Sun 11/85:50 pm -
1 stop5h 05m
Deal found 9/16![Southwest logo]()
$260
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 10/304:18 pm -
Nonstop1h 38m
Fri 11/69:56 am -
Nonstop1h 29m
Deal found 9/15![Alaska Airlines logo]()
$247
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.
Mon 10/127:45 pm -
1 stop5h 50m
Wed 10/145:40 am -
1 stop4h 40m
Deal found 9/13![Southwest logo]()
$264
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:57 pm -
1 stop4h 03m
Sun 11/88:45 am -
1 stop3h 12m
Deal found 9/12![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:50 pm -
1 stop7h 30m
Wed 12/26:05 am -
2 stops10h 55m
Deal found 9/12![Southwest logo]()
$282
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 10/224:24 pm -
Nonstop0h 59m
Mon 10/265:00 pm -
Nonstop0h 57m
Deal found 9/14![Alaska Airlines logo]()
$272
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.
Tue 10/204:24 pm -
Nonstop0h 59m
Fri 10/235:00 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$277
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.
Mon 10/196:50 am -
1 stop7h 40m
Mon 10/193:55 pm -
1 stop7h 15m
Deal found 9/13![Southwest logo]()
$307
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:57 pm -
1 stop4h 28m
Sun 11/18:22 am -
1 stop3h 35m
Deal found 9/13![Alaska Airlines logo]()
$277
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 10/176:00 am -
2 stops9h 30m
Mon 10/193:55 pm -
2 stops8h 10m
Deal found 9/13![Southwest logo]()
$312
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.
Mon 2/15:58 pm -
1 stop5h 29m
Fri 2/55:47 pm -
1 stop4h 59m
Deal found 9/14![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 9/11. 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 10/1011:10 am -
1 stop8h 00m
Sat 10/1711:05 am -
2 stops7h 45m
Deal found 9/11![Southwest logo]()
$312
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 10/176:43 am -
Nonstop1h 37m
Sat 10/179:57 am -
Nonstop1h 38m
Deal found 9/16![Alaska Airlines logo]()
$282
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:12 am -
1 stop3h 53m
Mon 10/1912:48 pm -
Nonstop1h 35m
Deal found 9/13![Alaska Airlines logo]()
$282
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.
Tue 10/207:20 am -
1 stop15h 20m
Mon 10/267:00 am -
Nonstop1h 08m
Deal found 9/15![Alaska Airlines logo]()
$286
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:43 am -
1 stop4h 04m
Sat 10/242:48 pm -
Nonstop1h 19m
Deal found 9/12![Alaska Airlines logo]()
$287
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.
Tue 10/279:12 am -
Nonstop1h 21m
Wed 10/2810:44 am -
Nonstop1h 26m
Deal found 9/15![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:16 pm -
1 stop5h 38m
Mon 11/95:43 pm -
1 stop5h 06m
Deal found 9/12![Alaska Airlines logo]()
$287
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 10/236:43 am -
1 stop5h 56m
Tue 10/277:00 am -
Nonstop1h 08m
Deal found 9/15![Alaska Airlines logo]()
$287
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:57 pm -
1 stop4h 03m
Mon 11/911:59 am -
Nonstop1h 28m
Deal found 9/13![Alaska Airlines logo]()
$292
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:24 pm -
Nonstop0h 59m
Tue 11/103:44 pm -
Nonstop0h 57m
Deal found 9/13![Alaska Airlines logo]()
$297
Last-minute flights from Boise to WashingtonDiscover last-minute flight deals from Boise to Washington. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Washington. Data last updated September 17, 2026 and is based on user searches.
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.
Tue 10/67:00 am -
1 stop4h 29m
Tue 10/612:48 pm -
Nonstop1h 35m
Deal found 9/15![Alaska Airlines logo]()
$211
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 10/137:40 am -
1 stop6h 35m
Tue 10/203:25 pm -
1 stop6h 05m
Deal found 9/15![Southwest logo]()
$198
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.
Tue 10/137:40 am -
1 stop6h 35m
Wed 10/145:40 am -
1 stop4h 40m
Deal found 9/13![Southwest logo]()
$210
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.
Fri 10/166:04 pm -
Nonstop1h 43m
Fri 10/169:24 pm -
1 stop23h 37m
Deal found 9/14![Alaska Airlines logo]()
$214
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 10/1712:58 pm -
Nonstop1h 34m
Sat 10/173:33 pm -
1 stop5h 28m
Deal found 9/16![Alaska Airlines logo]()
$208
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 10/194:24 pm -
Nonstop0h 59m
Tue 10/275:00 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$217
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.
Tue 10/204:24 pm -
Nonstop0h 59m
Tue 10/275:00 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$207
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.
Thu 10/226:50 am -
1 stop5h 00m
Sat 10/246:05 am -
1 stop5h 50m
Deal found 9/15![Southwest logo]()
$211
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 10/247:30 am -
Nonstop1h 13m
Wed 10/2810:10 am -
Nonstop1h 12m
Deal found 9/15![Alaska Airlines logo]()
$217
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.
Sat 10/247:20 am -
1 stop7h 00m
Wed 10/285:40 am -
1 stop4h 40m
Deal found 9/14![Southwest logo]()
$218
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:02 pm -
Nonstop1h 13m
Sat 11/710:06 am -
Nonstop1h 07m
Deal found 9/16![Alaska Airlines logo]()
$215
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:06 pm -
Nonstop1h 35m
Sat 11/77:50 pm -
Nonstop1h 30m
Deal found 9/16![Alaska Airlines logo]()
$223
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 September 17, 2026.
Search for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated September 17, 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 10/105:15 pm -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$99
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 10/319:35 am -
2 stops9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$105
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 10/146:00 am -
2 stops8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$111
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.
Thu 10/156:50 am -
1 stop5h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$112
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:40 pm -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Southwest logo]()
$114
This Super.com 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 Super.com 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 9/14![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/122:50 pm -
2 stops52h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/192:50 pm -
2 stops28h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$121
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 10/147:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$123
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 11/145:30 pm -
1 stop6h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Alaska Airlines logo]()
$124
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:15 pm -
1 stop4h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Southwest logo]()
$124
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 10/234:45 pm -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$124
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $198 (Southwest) |
One-way from | $99 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $281 |
Good round-trip deal | $248 or less |
Good one-way deal | $193 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 September 17, 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
BoiseSpokane
BOI Boise Air Term. Gowen Fld - GEG Spokane
BOIGEG
Boise Air Term. Gowen Fld
Sat 10/10
5:15 pm-8:25 pm
1 stop4h 10m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Fri 10/16
3:50 pm-8:35 pm
1 stop5h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Mon 10/19
7:45 pm-1:00 am
1 stop6h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
BoisePortland
BOI Boise Air Term. Gowen Fld - PDX Portland
BOIPDX
Boise Air Term. Gowen Fld
Tue 10/27
1:50 pm-7:20 pm
1 stop6h 30m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sat 10/31
6:00 am-3:50 pm
2 stops10h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$132
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Mon 11/23
7:10 pm-11:18 pm
1 stop5h 08m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Fri 10/23
6:50 pm-10:35 pm
1 stop4h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 12/15
8:02 am-8:55 am
Nonstop1h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sat 12/12
6:35 am-7:36 am
Nonstop2h 01m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
Quickest round-trip
BoisePullman
BOI Boise Air Term. Gowen Fld - PUW Pullman Moscow Regional
BOIPUW
Boise Air Term. Gowen Fld
Wed 10/14
4:24 pm-4:23 pm
Nonstop0h 59m
Pullman Moscow Regional
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
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-GEG
BOI-PUW
BOI-SEA
BOI-PDX
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-GEG
BOI-PUW
BOI-SEA
BOI-PDX
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 September 17, 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 21% 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 September 17, 2026.
The most flights from BOI to USWA are scheduled on a Monday (43 on average). You will have fewer flight options on Sunday, 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 typical for this route at the moment.
Boise to State of Washington flights typically cost between $207 and $394 in October.The cheapest round-trip price found within the last 5 days was $208 on Alaska Airlines (Oct 17-Oct 17).
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 40 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 September 12, 2026.
Travelers seeking maximum savings on their Boise to State of Washington flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 17, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian Airlines 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.
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
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 September 17, 2026.
Popular flight searches
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Boise to Washington flights
Consider these flights traveling from Boise to Washington.
Top 3 airlines flying from Boise to Washington
Discover the top 3 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 September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$222 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$349 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$143 | Average$297 | FlexibilityNo cancel fee | On-time85% |