$77+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Aug 30 — Sep 61
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 July 31, 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 July 31, 2026.
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 11/103:52 pm
BOI
- SEA
Nonstop1h 53m
Delta
Tue 11/174:04 pm
SEA
- BOI
Nonstop1h 33m
Delta
Deal found 7/30![Delta logo]()
$157
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:23 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Sun 8/309:18 pm
SEA
- BOI
Nonstop1h 26m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$161
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:49 pm
BOI
- SEA
1 stop25h 03m
Alaska Airlines
Thu 9/109:18 pm
SEA
- BOI
Nonstop1h 26m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:45 am
BOI
- SEA
Nonstop1h 50m
Delta
Mon 9/214:03 pm
SEA
- BOI
Nonstop1h 36m
Delta
Deal found 7/29![Delta logo]()
$167
This Priceline deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:12 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sat 9/52:03 pm
GEG
- BOI
Nonstop1h 08m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$167
This Trip.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:03 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Sun 9/137:15 am
SEA
- BOI
Nonstop1h 41m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$170
This Traveloka deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:23 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Sun 9/209:55 am
SEA
- BOI
Nonstop1h 40m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$174
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:03 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Wed 8/2611:41 am
SEA
- BOI
1 stop7h 39m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$176
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/116:23 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Fri 9/181:03 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:27 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Wed 9/239:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:38 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sun 8/307:00 am
GEG
- BOI
Nonstop1h 09m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:20 am
BOI
- SEA
1 stop28h 05m
Alaska Airlines
Tue 9/11:04 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$182
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 July 31, 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 July 31, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/196:23 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Wed 9/236:05 pm
SEA
- BOI
Nonstop1h 30m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:15 am
BOI
- GEG
2 stops8h 20m
Southwest
Wed 11/186:10 am
GEG
- BOI
2 stops10h 50m
Southwest
Deal found 7/28![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:28 pm
BOI
- PDX
1 stop5h 34m
Delta
Sun 10/45:49 pm
PDX
- BOI
1 stop3h 45m
Delta
Deal found 7/29![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:20 am
BOI
- SEA
1 stop28h 05m
Alaska Airlines
Tue 9/11:04 pm
SEA
- BOI
Nonstop1h 27m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:20 pm
BOI
- PDX
2 stops6h 35m
Southwest
Tue 10/66:00 am
PDX
- BOI
1 stop5h 15m
Southwest
Deal found 7/29![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:59 pm
BOI
- PDX
1 stop5h 32m
Delta
Sun 9/135:30 am
PDX
- BOI
1 stop3h 24m
Delta
Deal found 7/29![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:49 pm
BOI
- SEA
1 stop25h 03m
Alaska Airlines
Thu 9/109:18 pm
SEA
- BOI
Nonstop1h 26m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:10 am
BOI
- GEG
2 stops7h 50m
Southwest
Mon 9/214:20 pm
GEG
- BOI
1 stop6h 35m
Southwest
Deal found 7/29![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:29 pm
BOI
- SEA
Nonstop1h 41m
Delta
Sun 9/68:59 am
SEA
- BOI
Nonstop1h 40m
Delta
Deal found 7/28![Delta logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:27 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Wed 9/239:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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
BOI
- GEG
2 stops9h 55m
Southwest
Wed 10/143:25 pm
GEG
- BOI
2 stops6h 45m
Southwest
Deal found 7/30![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/21:31 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Sun 10/410:44 am
PDX
- BOI
Nonstop1h 26m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:49 am
BOI
- PDX
1 stop4h 53m
Delta
Sun 8/3012:25 pm
PDX
- BOI
1 stop5h 23m
Delta
Deal found 7/27![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:25 pm
BOI
- PDX
2 stops9h 55m
Southwest
Wed 10/286:50 am
PDX
- BOI
2 stops8h 10m
Southwest
Deal found 7/26![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:40 pm
BOI
- GEG
1 stop8h 20m
Southwest
Sat 9/126:15 am
GEG
- BOI
1 stop5h 00m
Southwest
Deal found 7/26![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:49 am
BOI
- GEG
1 stop6h 19m
Delta
Sun 8/234:20 pm
GEG
- BOI
1 stop6h 33m
Delta
Deal found 7/26![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:23 pm
BOI
- PDX
Nonstop1h 27m
Alaska Airlines
Wed 10/282:48 pm
PDX
- BOI
Nonstop1h 19m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/271:55 pm
BOI
- GEG
1 stop9h 15m
Southwest
Thu 9/36:55 am
GEG
- BOI
1 stop6h 20m
Southwest
Deal found 7/30![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:05 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Mon 8/242:03 pm
GEG
- BOI
Nonstop1h 08m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:55 pm
BOI
- PDX
1 stop7h 20m
Southwest
Sat 8/2911:20 am
PDX
- BOI
2 stops9h 40m
Southwest
Deal found 7/26![Southwest logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:30 am
BOI
- GEG
Nonstop1h 13m
Alaska Airlines
Tue 9/297:00 am
GEG
- BOI
Nonstop1h 09m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/1611:40 am
BOI
- GEG
1 stop4h 25m
Southwest
Mon 9/215:10 pm
GEG
- BOI
1 stop5h 30m
Southwest
Deal found 7/31![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:38 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sat 8/292:03 pm
GEG
- BOI
Nonstop1h 08m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:49 pm
BOI
- SEA
Nonstop1h 37m
Alaska Airlines
Tue 11/179:00 am
SEA
- BOI
1 stop12h 00m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:50 pm
BOI
- GEG
2 stops8h 15m
Southwest
Wed 11/186:10 am
GEG
- BOI
2 stops10h 50m
Southwest
Deal found 7/28![Southwest logo]()
$253
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:20 am
BOI
- PDX
1 stop16h 35m
Alaska Airlines
Sat 8/297:00 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/134:35 pm
BOI
- SEA
1 stop4h 30m
Southwest
Sun 9/206:50 am
SEA
- BOI
1 stop4h 05m
Southwest
Deal found 7/30![Southwest logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:03 am
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Mon 8/318:49 pm
SEA
- BOI
1 stop22h 31m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:50 am
BOI
- SEA
1 stop7h 40m
Southwest
Sun 10/118:25 am
SEA
- BOI
1 stop4h 40m
Southwest
Deal found 7/29![Southwest logo]()
$262
This Gotogate deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:32 pm
BOI
- PUW
Nonstop1h 00m
Alaska Airlines
Sun 9/135:36 pm
PUW
- BOI
1 stop5h 08m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$262
Last-minute flights from Boise to WashingtonDiscover last-minute flight deals from Boise to Washington. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Washington. Data last updated July 31, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:00 pm
BOI
- SEA
1 stop15h 26m
Alaska Airlines
Tue 8/1112:55 pm
SEA
- BOI
Nonstop1h 31m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$257
This Priceline deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:05 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sun 8/237:00 am
GEG
- BOI
Nonstop1h 09m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$237
This Priceline deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:32 pm
BOI
- PUW
Nonstop1h 00m
Alaska Airlines
Sun 8/235:20 pm
PUW
- BOI
1 stop5h 24m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:40 pm
BOI
- GEG
1 stop8h 15m
Southwest
Tue 9/13:50 pm
GEG
- BOI
1 stop5h 25m
Southwest
Deal found 7/28![Southwest logo]()
$202
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/2511:30 am
BOI
- GEG
1 stop5h 45m
Southwest
Mon 8/315:10 pm
GEG
- BOI
1 stop5h 25m
Southwest
Deal found 7/31![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
BOI
- GEG
2 stops8h 05m
Southwest
Wed 9/23:50 pm
GEG
- BOI
1 stop5h 25m
Southwest
Deal found 7/27![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:23 pm
BOI
- GEG
1 stop3h 56m
Delta
Thu 9/39:25 am
GEG
- BOI
1 stop4h 53m
Delta
Deal found 7/28![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/271:55 pm
BOI
- GEG
1 stop9h 15m
Southwest
Thu 9/36:55 am
GEG
- BOI
1 stop6h 20m
Southwest
Deal found 7/30![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:38 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sun 8/307:00 am
GEG
- BOI
Nonstop1h 09m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:49 am
BOI
- GEG
1 stop4h 40m
Delta
Sun 8/3011:09 am
GEG
- BOI
1 stop6h 39m
Delta
Deal found 7/29![Delta logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:30 am
BOI
- GEG
Nonstop1h 13m
Alaska Airlines
Mon 8/317:03 am
GEG
- BOI
1 stop12h 17m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$233
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/304:17 pm
BOI
- PUW
1 stop25h 26m
Alaska Airlines
Sun 9/62:32 pm
PUW
- BOI
Nonstop1h 00m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$295
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 July 31, 2026.
Search for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/282:50 pm
BOI
- SEA
1 stop19h 52m
Frontier
Deal found 7/31![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:52 pm
BOI
- PDX
1 stop5h 47m
Frontier
Deal found 7/30![Frontier logo]()
$77
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:05 pm
BOI
- SEA
1 stop5h 25m
Southwest
Deal found 7/29![Southwest logo]()
$89
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/126:10 am
BOI
- GEG
1 stop5h 35m
Southwest
Deal found 7/30![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Fri 9/112:50 pm
BOI
- SEA
1 stop19h 52m
Frontier
Deal found 7/31![Frontier logo]()
$90
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 7/29![Southwest logo]()
$94
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/294:05 pm
BOI
- PDX
1 stop4h 55m
Southwest
Deal found 7/31![Southwest logo]()
$94
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:55 pm
BOI
- SEA
1 stop8h 45m
Southwest
Deal found 7/29![Southwest logo]()
$99
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/312:55 pm
BOI
- GEG
1 stop8h 05m
Southwest
Deal found 7/30![Southwest logo]()
$99
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am
BOI
- SEA
2 stops12h 30m
Southwest
Deal found 7/29![Southwest logo]()
$100
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:30 am
BOI
- SEA
1 stop4h 40m
Southwest
Deal found 7/27![Southwest logo]()
$104
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 pm
BOI
- PDX
1 stop5h 15m
Southwest
Deal found 7/30![Southwest logo]()
$104
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 July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Delta) |
One-way from | $77 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $316 |
Good round-trip deal | $282 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 July 31, 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
Sat 9/19
6:23 am-7:02 am
Nonstop1h 39m
Seattle/Tacoma Intl
Wed 9/23
6:05 pm-8:35 pm
Nonstop1h 30m
$157
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Mon 8/31
7:20 am-10:25 am
1 stop28h 05m
Seattle/Tacoma Intl
Tue 9/1
1:04 pm-3:31 pm
Nonstop1h 27m
$182
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Wed 9/9
6:49 pm-6:52 pm
1 stop25h 03m
Seattle/Tacoma Intl
Thu 9/10
9:18 pm-11:44 pm
Nonstop1h 26m
$182
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Tue 11/17
6:15 am-1:35 pm
2 stops8h 20m
Spokane
Wed 11/18
6:10 am-6:00 pm
2 stops10h 50m
$187
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Tue 9/29
2:20 pm-7:55 pm
2 stops6h 35m
Portland
Tue 10/6
6:00 am-12:15 pm
1 stop5h 15m
$192
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Sat 9/19
6:10 am-1:00 pm
2 stops7h 50m
Spokane
Mon 9/21
4:20 pm-11:55 pm
1 stop6h 35m
$192
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Sat 10/3
3:28 pm-8:02 pm
1 stop5h 34m
Portland
Sun 10/4
5:49 pm-10:34 pm
1 stop3h 45m
$197
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Wed 9/9
5:59 pm-10:31 pm
1 stop5h 32m
Portland
Sun 9/13
5:30 am-9:54 am
1 stop3h 24m
$197
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Sat 9/19
4:27 pm-4:45 pm
Nonstop1h 18m
Portland
Wed 9/23
9:33 pm-11:55 pm
Nonstop1h 22m
$197
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Sat 9/5
3:29 pm-4:10 pm
Nonstop1h 41m
Seattle/Tacoma Intl
Sun 9/6
8:59 am-11:39 am
Nonstop1h 40m
$202
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, 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 July 31, 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 17% 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 July 31, 2026.
The most flights from BOI to USWA are scheduled on a Thursday (46 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (19 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 $157 and $297 in November.The cheapest round-trip price found within the last 5 days was $157 on Delta (Nov 10-Nov 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 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 July 25, 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 July 31, 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.
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
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 July 31, 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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$237 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$97 | Average$217 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$344 | FlexibilityNo cancel fee | On-time75% |