$94+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Jun 1 — Jun 81
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 May 2, 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 May 2, 2026.
This Delta deal was found by Cheapflights users on 4/29. 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 5/279:16 pm
BOI
- SEA
Nonstop1h 49m
Delta
Wed 6/39:20 pm
SEA
- BOI
Nonstop1h 33m
Delta
Deal found 4/29![Delta logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:51 pm
BOI
- SEA
Nonstop1h 38m
Alaska Airlines
Sun 5/319:29 pm
SEA
- BOI
Nonstop1h 29m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$185
This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 5/218:56 am
BOI
- SEA
Nonstop1h 54m
Delta
Tue 5/262:35 pm
SEA
- BOI
Nonstop1h 34m
Delta
Deal found 4/29![Delta logo]()
$187
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:05 pm
BOI
- PDX
1 stop4h 58m
United Airlines
Sat 5/3011:16 am
PDX
- BOI
1 stop4h 28m
United Airlines
Deal found 4/27![United Airlines logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/48:51 pm
BOI
- SEA
Nonstop1h 38m
Alaska Airlines
Sun 6/78:26 am
SEA
- BOI
Nonstop1h 37m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$197
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Mon 6/16:03 pm
PDX
- BOI
1 stop4h 52m
United Airlines
Deal found 4/27![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/165:30 am
BOI
- SEA
2 stops9h 05m
Southwest
Wed 6/247:30 am
SEA
- BOI
1 stop5h 55m
Southwest
Deal found 5/1![Southwest logo]()
$202
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 5/1911:35 am
BOI
- PDX
1 stop5h 50m
Southwest
Fri 5/2211:35 am
PDX
- BOI
1 stop9h 15m
Southwest
Deal found 4/27![Southwest logo]()
$202
This Delta deal was found by Cheapflights users on 4/27. 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.
Wed 5/276:00 pm
BOI
- SEA
Nonstop1h 42m
Delta
Sun 5/319:00 am
SEA
- BOI
Nonstop1h 35m
Delta
Deal found 4/27![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Sun 5/318:35 am
PDX
- BOI
1 stop7h 09m
United Airlines
Deal found 4/27![United Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 4/27. 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.
Sun 5/316:30 am
BOI
- PDX
1 stop10h 15m
Southwest
Mon 6/15:00 pm
PDX
- BOI
1 stop6h 45m
Southwest
Deal found 4/27![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 6/2311:45 am
BOI
- PDX
1 stop5h 55m
Southwest
Mon 6/296:00 pm
PDX
- BOI
1 stop6h 10m
Southwest
Deal found 4/27![Southwest logo]()
$215
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 May 2, 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 May 2, 2026.
This Southwest deal was found by Cheapflights users on 4/30. 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 6/66:00 pm
BOI
- PDX
1 stop6h 25m
Southwest
Sun 6/76:00 am
PDX
- BOI
1 stop8h 20m
Southwest
Deal found 4/30![Southwest logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/36:23 pm
BOI
- GEG
Nonstop1h 08m
Alaska Airlines
Sat 6/63:20 pm
GEG
- BOI
Nonstop1h 08m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 6/29:18 pm
BOI
- PDX
1 stop3h 35m
Delta
Wed 6/312:20 pm
PDX
- BOI
1 stop3h 47m
Delta
Deal found 4/27![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Wed 6/38:35 am
PDX
- BOI
1 stop7h 09m
United Airlines
Deal found 4/29![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 4/28. 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 6/186:43 am
BOI
- GEG
1 stop4h 51m
Delta
Sun 6/215:30 am
GEG
- BOI
1 stop3h 26m
Delta
Deal found 4/28![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/30. 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.
Fri 6/57:20 pm
BOI
- GEG
1 stop5h 15m
Southwest
Sat 6/65:00 am
GEG
- BOI
1 stop5h 30m
Southwest
Deal found 4/30![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 7/911:53 am
BOI
- GEG
1 stop5h 15m
Delta
Sun 7/125:10 pm
GEG
- BOI
1 stop5h 55m
Delta
Deal found 4/30![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/227:00 am
BOI
- GEG
Nonstop1h 07m
Alaska Airlines
Mon 5/257:11 pm
GEG
- BOI
Nonstop1h 06m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/3012:42 pm
BOI
- GEG
1 stop5h 26m
Delta
Wed 10/75:40 pm
GEG
- BOI
1 stop5h 12m
Delta
Deal found 5/1![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/306:00 am
BOI
- GEG
1 stop6h 50m
Southwest
Wed 10/710:50 am
GEG
- BOI
2 stops8h 45m
Southwest
Deal found 5/1![Southwest logo]()
$272
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:05 pm
BOI
- SEA
1 stop7h 08m
United Airlines
Sat 6/63:30 pm
SEA
- BOI
1 stop7h 25m
United Airlines
Deal found 5/1![United Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 10/16:00 am
BOI
- GEG
1 stop3h 36m
Delta
Sat 10/35:20 am
GEG
- BOI
1 stop5h 45m
Delta
Deal found 5/1![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 7/314:21 pm
BOI
- SEA
Nonstop1h 39m
Alaska Airlines
Fri 8/79:31 pm
SEA
- BOI
Nonstop1h 33m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 4/27. 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.
Fri 6/125:10 am
BOI
- GEG
2 stops7h 30m
Southwest
Fri 6/195:10 pm
GEG
- BOI
1 stop7h 00m
Southwest
Deal found 4/27![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 6/56:00 pm
BOI
- GEG
1 stop5h 49m
Delta
Mon 6/87:08 pm
GEG
- BOI
1 stop4h 01m
Delta
Deal found 4/29![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 6/47:33 pm
BOI
- SEA
1 stop14h 24m
Alaska Airlines
Sun 6/78:26 am
SEA
- BOI
Nonstop1h 37m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 4/28. 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 6/237:55 pm
BOI
- PDX
1 stop3h 30m
Southwest
Mon 6/2912:15 pm
PDX
- BOI
2 stops7h 55m
Southwest
Deal found 4/28![Southwest logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 7/248:47 pm
BOI
- PUW
1 stop4h 03m
Alaska Airlines
Mon 7/277:23 pm
PUW
- BOI
1 stop3h 41m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 4/29. 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 9/226:25 am
BOI
- PDX
1 stop7h 55m
Southwest
Thu 9/245:15 am
PDX
- BOI
2 stops8h 00m
Southwest
Deal found 4/29![Southwest logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/278:28 pm
BOI
- PDX
Nonstop1h 22m
Alaska Airlines
Wed 6/312:38 pm
PDX
- BOI
1 stop9h 09m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 7/2310:35 am
BOI
- SEA
Nonstop1h 51m
Delta
Sun 7/269:20 pm
SEA
- BOI
Nonstop1h 31m
Delta
Deal found 4/30![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 4/30. 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 6/225:55 pm
BOI
- PDX
1 stop8h 25m
Southwest
Sat 6/279:00 am
PDX
- BOI
1 stop5h 35m
Southwest
Deal found 4/30![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/138:40 am
BOI
- SEA
Nonstop1h 47m
Delta
Sat 8/225:45 pm
SEA
- BOI
Nonstop1h 33m
Delta
Deal found 5/1![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 4/27. 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 5/274:05 pm
BOI
- PDX
2 stops7h 20m
Southwest
Sat 5/301:35 pm
PDX
- BOI
1 stop7h 30m
Southwest
Deal found 4/27![Southwest logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/278:51 pm
BOI
- PUW
1 stop4h 31m
Alaska Airlines
Thu 5/287:59 pm
PUW
- BOI
1 stop14h 04m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/272:45 pm
BOI
- SEA
Nonstop1h 40m
Delta
Fri 9/47:25 am
SEA
- BOI
Nonstop1h 37m
Delta
Deal found 5/1![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/142:55 pm
BOI
- SEA
1 stop6h 50m
Southwest
Sun 8/166:55 am
SEA
- BOI
1 stop6h 50m
Southwest
Deal found 5/1![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 7/146:51 am
BOI
- SEA
Nonstop1h 44m
Delta
Tue 7/214:10 pm
SEA
- BOI
Nonstop1h 36m
Delta
Deal found 4/27![Delta logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/38:51 pm
BOI
- PUW
1 stop4h 31m
Alaska Airlines
Sun 6/77:59 pm
PUW
- BOI
1 stop14h 04m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 8/66:49 am
BOI
- SEA
Nonstop1h 46m
Delta
Fri 8/1411:45 am
SEA
- BOI
Nonstop1h 37m
Delta
Deal found 4/30![Delta logo]()
$287
Last-minute flights from Boise to WashingtonDiscover last-minute flight deals from Boise to Washington. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Washington. Data last updated May 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 5/1911:35 am
BOI
- PDX
1 stop5h 50m
Southwest
Fri 5/2211:35 am
PDX
- BOI
1 stop9h 15m
Southwest
Deal found 4/27![Southwest logo]()
$202
This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 5/218:56 am
BOI
- SEA
Nonstop1h 54m
Delta
Tue 5/262:35 pm
SEA
- BOI
Nonstop1h 34m
Delta
Deal found 4/29![Delta logo]()
$187
This Delta deal was found by Cheapflights users on 4/29. 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 5/279:16 pm
BOI
- SEA
Nonstop1h 49m
Delta
Wed 6/39:20 pm
SEA
- BOI
Nonstop1h 33m
Delta
Deal found 4/29![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:05 pm
BOI
- PDX
1 stop4h 58m
United Airlines
Sat 5/3011:16 am
PDX
- BOI
1 stop4h 28m
United Airlines
Deal found 4/27![United Airlines logo]()
$187
This Delta deal was found by Cheapflights users on 4/27. 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.
Wed 5/276:00 pm
BOI
- SEA
Nonstop1h 42m
Delta
Sun 5/319:00 am
SEA
- BOI
Nonstop1h 35m
Delta
Deal found 4/27![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Sun 5/318:35 am
PDX
- BOI
1 stop7h 09m
United Airlines
Deal found 4/27![United Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:51 pm
BOI
- SEA
Nonstop1h 38m
Alaska Airlines
Sun 5/319:29 pm
SEA
- BOI
Nonstop1h 29m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$185
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Mon 6/16:03 pm
PDX
- BOI
1 stop4h 52m
United Airlines
Deal found 4/27![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 4/27. 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.
Sun 5/316:30 am
BOI
- PDX
1 stop10h 15m
Southwest
Mon 6/15:00 pm
PDX
- BOI
1 stop6h 45m
Southwest
Deal found 4/27![Southwest logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/48:51 pm
BOI
- SEA
Nonstop1h 38m
Alaska Airlines
Sun 6/78:26 am
SEA
- BOI
Nonstop1h 37m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/165:30 am
BOI
- SEA
2 stops9h 05m
Southwest
Wed 6/247:30 am
SEA
- BOI
1 stop5h 55m
Southwest
Deal found 5/1![Southwest logo]()
$202
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 6/2311:45 am
BOI
- PDX
1 stop5h 55m
Southwest
Mon 6/296:00 pm
PDX
- BOI
1 stop6h 10m
Southwest
Deal found 4/27![Southwest logo]()
$215
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 May 2, 2026.
Search for one-way flight options from Boise to Washington. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This Southwest deal was found by Cheapflights users on 4/28. 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 5/1911:35 am
BOI
- PDX
1 stop5h 50m
Southwest
Deal found 4/28![Southwest logo]()
$94
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:05 pm
BOI
- SEA
1 stop5h 27m
United Airlines
Deal found 4/30![United Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/64:10 pm
BOI
- PDX
1 stop6h 50m
Southwest
Deal found 5/1![Southwest logo]()
$99
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Deal found 4/27![United Airlines logo]()
$104
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:05 pm
BOI
- SEA
1 stop7h 24m
United Airlines
Deal found 4/28![United Airlines logo]()
$109
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:05 pm
BOI
- PDX
1 stop6h 45m
United Airlines
Deal found 4/29![United Airlines logo]()
$109
This Southwest deal was found by Cheapflights users on 4/29. 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.
Sun 5/316:30 am
BOI
- PDX
1 stop10h 15m
Southwest
Deal found 4/29![Southwest logo]()
$114
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 5/276:00 pm
BOI
- SEA
Nonstop1h 42m
Delta
Deal found 4/28![Delta logo]()
$119
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:00 am
BOI
- PDX
Nonstop1h 23m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 4/28. 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.
Thu 5/287:55 pm
BOI
- GEG
1 stop5h 35m
Southwest
Deal found 4/28![Southwest logo]()
$119
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:01 pm
BOI
- PDX
1 stop6h 46m
United Airlines
Deal found 4/30![United Airlines logo]()
$122
This Delta deal was found by Cheapflights users on 4/27. 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 5/2812:55 pm
BOI
- PDX
1 stop4h 05m
Delta
Deal found 4/27![Delta 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 May 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $177 (Delta) |
One-way from | $94 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $187 |
Good round-trip deal | $217 or less |
Good one-way deal | $198 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 May 2, 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
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Sat 6/6
6:00 pm-11:25 pm
1 stop6h 25m
Portland
Sun 6/7
6:00 am-3:20 pm
1 stop8h 20m
$212
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Wed 6/3
6:23 pm-6:31 pm
Nonstop1h 08m
Spokane
Sat 6/6
3:20 pm-5:28 pm
Nonstop1h 08m
$217
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Tue 6/2
9:18 pm-11:53 pm
1 stop3h 35m
Portland
Wed 6/3
12:20 pm-5:07 pm
1 stop3h 47m
$227
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Thu 6/18
6:43 am-10:34 am
1 stop4h 51m
Spokane
Sun 6/21
5:30 am-9:56 am
1 stop3h 26m
$237
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Fri 6/5
7:20 pm-11:35 pm
1 stop5h 15m
Spokane
Sat 6/6
5:00 am-11:30 am
1 stop5h 30m
$237
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Thu 7/9
11:53 am-4:08 pm
1 stop5h 15m
Spokane
Sun 7/12
5:10 pm-12:05 am
1 stop5h 55m
$237
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Wed 9/30
12:42 pm-5:08 pm
1 stop5h 26m
Spokane
Wed 10/7
5:40 pm-11:52 pm
1 stop5h 12m
$237
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Thu 10/1
6:00 am-8:36 am
1 stop3h 36m
Spokane
Sat 10/3
5:20 am-12:05 pm
1 stop5h 45m
$237
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Fri 6/5
6:00 pm-10:49 pm
1 stop5h 49m
Spokane
Mon 6/8
7:08 pm-12:09 am
1 stop4h 01m
$237
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Tue 6/2
7:05 pm-12:50 am
1 stop6h 45m
Portland
Wed 6/3
8:35 am-4:44 pm
1 stop7h 09m
$257
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-PDX
BOI-GEG
BOI-SEA
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-PDX
BOI-GEG
BOI-SEA
BOI-PUW
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 33 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 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 $147). 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 May 2, 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 13% on airfare.
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 April 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.
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 May 2, 2026.
The most flights from BOI to USWA are scheduled on a Saturday (41 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Boise to State of Washington?
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 May 2, 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.
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Boise to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Boise and Washington flights
Browse other Boise and Washington flight options. Last updated on May 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$216 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$237 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$236 | FlexibilityNo cancel fee | On-time75% |