$84+ Cheap flights from Boise (BOI) to Washington
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Jul 15 — Jul 221
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 June 15, 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 June 15, 2026.
This Expedia deal was found by Cheapflights users on 6/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:23 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Tue 8/2510:00 am
SEA
- BOI
Nonstop1h 36m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:57 am
BOI
- SEA
1 stop24h 19m
Alaska Airlines
Tue 10/2011:33 am
SEA
- BOI
Nonstop1h 38m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$201
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:41 am
BOI
- SEA
1 stop26h 47m
Alaska Airlines
Wed 10/2112:45 pm
SEA
- BOI
Nonstop1h 38m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$206
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 8/294:20 pm
BOI
- SEA
Nonstop1h 36m
Alaska Airlines
Mon 8/318:03 pm
SEA
- BOI
Nonstop1h 30m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:14 am
BOI
- SEA
1 stop23h 57m
Alaska Airlines
Tue 9/11:04 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:40 pm
BOI
- SEA
1 stop6h 35m
Southwest
Wed 9/27:40 am
SEA
- BOI
1 stop6h 20m
Southwest
Deal found 6/10![Southwest logo]()
$210
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:49 am
BOI
- SEA
1 stop24h 59m
Alaska Airlines
Mon 8/311:04 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 6/15. 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 9/1810:35 am
BOI
- SEA
Nonstop1h 52m
Delta
Mon 9/287:15 am
SEA
- BOI
Nonstop1h 39m
Delta
Deal found 6/15![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:55 pm
BOI
- GEG
1 stop8h 05m
Southwest
Sat 9/122:40 pm
GEG
- BOI
1 stop5h 15m
Southwest
Deal found 6/10![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 6/13. 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 9/811:30 am
BOI
- SEA
1 stop8h 40m
Southwest
Tue 9/157:40 am
SEA
- BOI
1 stop6h 20m
Southwest
Deal found 6/13![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:52 am
BOI
- SEA
1 stop23h 21m
Alaska Airlines
Sat 8/812:55 pm
SEA
- BOI
Nonstop1h 31m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$223
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:23 pm
BOI
- GEG
Nonstop1h 10m
Alaska Airlines
Mon 7/137:24 pm
GEG
- BOI
Nonstop1h 14m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$227
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 June 15, 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 June 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 9/226:49 pm
BOI
- SEA
1 stop16h 36m
Alaska Airlines
Wed 9/231:03 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:05 pm
BOI
- SEA
Nonstop1h 49m
Delta
Sat 10/171:00 pm
SEA
- BOI
Nonstop1h 30m
Delta
Deal found 6/14![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
BOI
- GEG
2 stops10h 00m
Southwest
Sat 9/122:40 pm
GEG
- BOI
1 stop5h 15m
Southwest
Deal found 6/10![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:05 pm
BOI
- SEA
1 stop5h 21m
United Airlines
Wed 8/267:11 am
SEA
- BOI
1 stop7h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 8/2912:23 pm
BOI
- SEA
Nonstop1h 49m
Delta
Sun 8/304:10 pm
SEA
- BOI
Nonstop1h 38m
Delta
Deal found 6/12![Delta logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 10/166:57 pm
BOI
- SEA
1 stop24h 51m
Alaska Airlines
Sat 10/179:28 pm
SEA
- BOI
Nonstop1h 30m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 9/152:20 pm
BOI
- PDX
2 stops6h 30m
Southwest
Mon 9/215:15 pm
PDX
- BOI
1 stop4h 35m
Southwest
Deal found 6/14![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 6/12. 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.
Fri 9/2512:14 pm
BOI
- SEA
Nonstop1h 45m
Delta
Mon 9/2812:35 pm
SEA
- BOI
Nonstop1h 37m
Delta
Deal found 6/12![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:14 am
BOI
- PDX
1 stop24h 55m
Alaska Airlines
Sat 9/192:53 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 8/2712:23 pm
BOI
- SEA
Nonstop1h 49m
Delta
Fri 9/47:15 am
SEA
- BOI
Nonstop1h 40m
Delta
Deal found 6/12![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 6/13. 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 7/77:55 pm
BOI
- GEG
1 stop3h 50m
Southwest
Sat 7/115:25 am
GEG
- BOI
1 stop5h 55m
Southwest
Deal found 6/13![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:05 pm
BOI
- SEA
1 stop5h 14m
United Airlines
Tue 7/2110:29 am
SEA
- BOI
1 stop5h 15m
United Airlines
Deal found 6/10![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 10/66:40 am
BOI
- PDX
1 stop4h 07m
Alaska Airlines
Wed 10/75:45 pm
PDX
- BOI
1 stop5h 13m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Tue 9/292:16 pm
BOI
- PDX
1 stop3h 34m
Alaska Airlines
Wed 9/307:09 am
PDX
- BOI
1 stop4h 26m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 6/11. 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.
Thu 8/136:30 am
BOI
- PDX
1 stop6h 35m
Southwest
Sun 8/167:00 am
PDX
- BOI
1 stop5h 45m
Southwest
Deal found 6/11![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/66:49 am
BOI
- GEG
1 stop6h 19m
Delta
Mon 8/105:15 am
GEG
- BOI
1 stop5h 28m
Delta
Deal found 6/10![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 6/15. 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 8/283:29 pm
BOI
- GEG
1 stop6h 47m
Delta
Mon 8/314:20 pm
GEG
- BOI
1 stop5h 10m
Delta
Deal found 6/15![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 6/13. 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 7/217:55 pm
BOI
- PDX
1 stop3h 35m
Southwest
Wed 7/294:05 pm
PDX
- BOI
2 stops7h 25m
Southwest
Deal found 6/13![Southwest logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:52 pm
BOI
- PUW
1 stop4h 04m
Alaska Airlines
Tue 11/103:44 pm
PUW
- BOI
Nonstop0h 57m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:23 pm
BOI
- GEG
1 stop5h 37m
Delta
Sun 8/95:15 am
GEG
- BOI
1 stop3h 40m
Delta
Deal found 6/13![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:25 am
BOI
- GEG
2 stops8h 25m
Southwest
Fri 7/175:25 am
GEG
- BOI
1 stop5h 20m
Southwest
Deal found 6/10![Southwest logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:57 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Tue 8/47:19 am
PDX
- BOI
1 stop13h 48m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:50 pm
BOI
- SEA
2 stops9h 50m
Southwest
Wed 8/261:45 pm
SEA
- BOI
2 stops7h 40m
Southwest
Deal found 6/10![Southwest logo]()
$288
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 7/156:07 pm
BOI
- GEG
1 stop4h 06m
Delta
Sun 7/197:00 am
GEG
- BOI
1 stop3h 38m
Delta
Deal found 6/12![Delta logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:57 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Sun 7/57:00 am
PDX
- BOI
Nonstop1h 19m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 6/12. 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 8/234:45 pm
BOI
- GEG
1 stop8h 10m
Southwest
Mon 8/245:35 pm
GEG
- BOI
1 stop4h 15m
Southwest
Deal found 6/12![Southwest logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:40 am
BOI
- GEG
Nonstop1h 11m
Alaska Airlines
Tue 8/118:53 am
GEG
- BOI
Nonstop1h 09m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:55 pm
BOI
- PDX
1 stop8h 30m
Southwest
Mon 7/135:20 am
PDX
- BOI
1 stop5h 25m
Southwest
Deal found 6/14![Southwest logo]()
$300
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:28 pm
BOI
- PDX
1 stop5h 28m
Delta
Sun 8/95:30 am
PDX
- BOI
1 stop3h 25m
Delta
Deal found 6/14![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 9/42:17 pm
BOI
- SEA
Nonstop1h 36m
Alaska Airlines
Fri 9/114:32 pm
SEA
- BOI
1 stop4h 53m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$297
Last-minute flights from Boise to WashingtonDiscover last-minute flight deals from Boise to Washington. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Washington. Data last updated June 15, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/13. 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 7/77:55 pm
BOI
- GEG
1 stop3h 50m
Southwest
Sat 7/115:25 am
GEG
- BOI
1 stop5h 55m
Southwest
Deal found 6/13![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 7/77:55 pm
BOI
- PDX
1 stop3h 35m
Southwest
Fri 7/105:00 am
PDX
- BOI
1 stop5h 25m
Southwest
Deal found 6/11![Southwest logo]()
$263
This Southwest deal was found by Cheapflights users on 6/12. 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 7/87:55 pm
BOI
- PDX
1 stop3h 35m
Southwest
Fri 7/106:00 pm
PDX
- BOI
1 stop6h 15m
Southwest
Deal found 6/12![Southwest logo]()
$271
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:23 pm
BOI
- GEG
Nonstop1h 10m
Alaska Airlines
Mon 7/137:24 pm
GEG
- BOI
Nonstop1h 14m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:28 pm
BOI
- GEG
1 stop5h 27m
Delta
Mon 7/135:37 pm
GEG
- BOI
1 stop3h 41m
Delta
Deal found 6/11![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Fri 7/178:35 am
PDX
- BOI
1 stop7h 09m
United Airlines
Deal found 6/10![United Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 7/114:27 pm
BOI
- GEG
1 stop5h 29m
Alaska Airlines
Sat 7/184:05 pm
GEG
- BOI
Nonstop1h 08m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 6/14. 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 7/116:05 am
BOI
- GEG
1 stop5h 30m
Southwest
Sat 7/113:15 pm
GEG
- BOI
1 stop7h 20m
Southwest
Deal found 6/14![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:55 pm
BOI
- GEG
1 stop8h 30m
Southwest
Fri 7/175:25 am
GEG
- BOI
1 stop5h 20m
Southwest
Deal found 6/10![Southwest logo]()
$243
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 7/156:07 pm
BOI
- GEG
1 stop4h 06m
Delta
Sun 7/197:00 am
GEG
- BOI
1 stop3h 38m
Delta
Deal found 6/12![Delta logo]()
$273
This Southwest deal was found by Cheapflights users on 6/11. 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.
Thu 7/167:40 pm
BOI
- PDX
1 stop5h 55m
Southwest
Tue 7/215:25 am
PDX
- BOI
1 stop6h 05m
Southwest
Deal found 6/11![Southwest logo]()
$235
This Southwest deal was found by Cheapflights users on 6/12. 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 7/269:00 pm
BOI
- PDX
1 stop5h 05m
Southwest
Sat 8/81:30 pm
PDX
- BOI
1 stop7h 30m
Southwest
Deal found 6/12![Southwest logo]()
$243
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 June 15, 2026.
Search for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 8/411:30 am
BOI
- GEG
1 stop5h 45m
Southwest
Deal found 6/11![Southwest logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:24 pm
BOI
- SEA
1 stop20h 40m
Frontier
Deal found 6/12![Frontier logo]()
$104
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:30 am
BOI
- SEA
1 stop4h 40m
Southwest
Deal found 6/10![Southwest logo]()
$105
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:40 pm
BOI
- SEA
1 stop6h 35m
Southwest
Deal found 6/12![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 6/12. 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 8/266:25 am
BOI
- PDX
1 stop7h 55m
Southwest
Deal found 6/12![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:20 pm
BOI
- SEA
2 stops7h 55m
Southwest
Deal found 6/10![Southwest logo]()
$111
This Southwest deal was found by Cheapflights users on 6/11. 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 8/154:00 pm
BOI
- PDX
1 stop5h 00m
Southwest
Deal found 6/11![Southwest logo]()
$112
This Southwest deal was found by Cheapflights users on 6/11. 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 9/57:45 am
BOI
- SEA
1 stop9h 10m
Southwest
Deal found 6/11![Southwest logo]()
$114
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:55 pm
BOI
- PDX
1 stop3h 35m
Southwest
Deal found 6/10![Southwest logo]()
$114
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:24 pm
BOI
- SEA
1 stop24h 53m
Frontier
Deal found 6/12![Frontier logo]()
$115
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:15 am
BOI
- PDX
1 stop7h 35m
Southwest
Deal found 6/10![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 6/12. 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 8/236:00 am
BOI
- SEA
1 stop7h 05m
Southwest
Deal found 6/12![Southwest logo]()
$119
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Delta) |
One-way from | $84 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $322 |
Good round-trip deal | $227 or less |
Good one-way deal | $143 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 2,558,603 searches. Data last updated June 15, 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 - SEA
BOISEA
Boise Air Term. Gowen Fld
Tue 9/22
6:49 pm-10:25 am
1 stop16h 36m
Seattle/Tacoma Intl
Wed 9/23
1:03 pm-3:30 pm
Nonstop1h 27m
$197
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Fri 10/16
4:05 pm-4:54 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Sat 10/17
1:00 pm-3:30 pm
Nonstop1h 30m
$207
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Sat 8/29
12:23 pm-1:12 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Sun 8/30
4:10 pm-6:48 pm
Nonstop1h 38m
$207
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Fri 9/25
12:14 pm-12:59 pm
Nonstop1h 45m
Seattle/Tacoma Intl
Mon 9/28
12:35 pm-3:12 pm
Nonstop1h 37m
$217
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Thu 8/27
12:23 pm-1:12 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Fri 9/4
7:15 am-9:55 am
Nonstop1h 40m
$217
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Thu 9/10
6:00 am-3:00 pm
2 stops10h 00m
Spokane
Sat 9/12
2:40 pm-8:55 pm
1 stop5h 15m
$223
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Fri 8/21
7:05 pm-11:26 pm
1 stop5h 21m
Seattle/Tacoma Intl
Wed 8/26
7:11 am-3:31 pm
1 stop7h 20m
$227
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Fri 10/16
6:57 pm-6:48 pm
1 stop24h 51m
Seattle/Tacoma Intl
Sat 10/17
9:28 pm-11:58 pm
Nonstop1h 30m
$227
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Tue 9/15
2:20 pm-7:50 pm
2 stops6h 30m
Portland
Mon 9/21
5:15 pm-10:50 pm
1 stop4h 35m
$232
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Tue 9/15
10:14 am-10:09 am
1 stop24h 55m
Portland
Sat 9/19
2:53 pm-5:15 pm
Nonstop1h 22m
$237
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-PDX
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-PDX
BOI-PUW
What is the cheapest month to book a flight from Boise to State of Washington?
Currently, March is the cheapest month in which you can book a flight from Boise to State of Washington (average of $59). Flying from Boise to State of Washington in July is currently the most expensive (average of $193). 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 June 15, 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 15% 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 June 15, 2026.
The most flights from BOI to USWA are scheduled on a Friday (49 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (31 on average).
How much does it cost to fly round-trip from Boise to State of Washington?
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 64 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 June 13, 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. Wednesday 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 June 15, 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
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
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 June 15, 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 2,558,603 searches. Data last updated June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$227 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$97 | Average$207 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$295 | FlexibilityNo cancel fee | On-time75% |