$114+ Cheap flights from Boise to Seattle (BOI - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl are usually found in January or February, booked 58 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Boise to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boise to SeattleExplore the most affordable flight options available from Boise to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Boise to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Delta deal was found by Cheapflights users on 10/28. 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.
Sun 12/66:35 am -
Nonstop2h 01m
Wed 12/169:03 am -
Nonstop1h 37m
Deal found 10/28![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 11/286:40 am -
Nonstop2h 00m
Sun 11/299:20 pm -
Nonstop1h 30m
Deal found 10/27![Delta logo]()
$218
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 12/810:16 am -
1 stop23h 00m
Wed 12/911:51 am -
Nonstop1h 28m
Deal found 10/26![Alaska Airlines logo]()
$221
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 12/54:10 pm -
Nonstop1h 44m
Wed 12/169:12 am -
1 stop12h 15m
Deal found 10/28![Alaska Airlines logo]()
$222
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:49 pm -
1 stop22h 48m
Mon 11/239:53 pm -
1 stop20h 07m
Deal found 10/27![Frontier logo]()
$225
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 12/117:18 pm -
Nonstop1h 56m
Sun 12/137:15 am -
Nonstop1h 41m
Deal found 10/28![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 12/712:40 pm -
1 stop8h 00m
Tue 12/152:05 pm -
1 stop8h 10m
Deal found 10/27![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/1712:00 pm -
1 stop5h 27m
Wed 11/189:05 am -
1 stop6h 37m
Deal found 10/27![United Airlines logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 12/114:47 pm -
1 stop17h 45m
Sun 12/131:02 pm -
Nonstop1h 24m
Deal found 10/29![Alaska Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 12/712:40 pm -
1 stop8h 00m
Wed 12/911:35 am -
2 stops9h 05m
Deal found 10/27![Southwest logo]()
$234
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:33 am -
Nonstop1h 47m
Tue 12/18:09 pm -
1 stop25h 18m
Deal found 10/25![Alaska Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/1012:40 pm -
1 stop8h 00m
Thu 12/176:45 am -
2 stops7h 30m
Deal found 10/25![Southwest logo]()
$236
Best flights from Boise to SeattleDiscover carefully curated flight deals from Boise to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Boise to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 1/1812:48 pm -
Nonstop1h 38m
Sat 2/67:59 pm -
Nonstop1h 23m
Deal found 10/28![Alaska Airlines logo]()
$217
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:10 pm -
1 stop5h 08m
Wed 12/29:01 am -
1 stop4h 49m
Deal found 10/26![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 10/26. 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 12/912:40 pm -
2 stops10h 40m
Fri 12/111:40 pm -
1 stop6h 30m
Deal found 10/26![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:40 am -
Nonstop2h 00m
Sat 11/287:15 am -
Nonstop1h 42m
Deal found 10/25![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 12/175:00 pm -
Nonstop1h 43m
Mon 12/219:30 pm -
Nonstop1h 29m
Deal found 10/26![Alaska Airlines logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 1/178:57 am -
1 stop5h 00m
Tue 1/193:44 pm -
1 stop3h 20m
Deal found 10/29![Alaska Airlines logo]()
$237
This KAYAK deal was found by Cheapflights users on 10/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:20 am -
1 stop27h 05m
Wed 11/186:30 pm -
1 stop26h 25m
Deal found 10/28![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:47 pm -
1 stop17h 45m
Sun 12/131:02 pm -
Nonstop1h 24m
Deal found 10/25![Alaska Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 12/37:57 am -
1 stop14h 31m
Sun 12/69:30 pm -
Nonstop1h 29m
Deal found 10/29![Alaska Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 12/711:25 am -
2 stops9h 15m
Wed 12/911:35 am -
2 stops9h 20m
Deal found 10/27![Southwest logo]()
$327
Last-minute flights from Boise to SeattleDiscover last-minute flight deals from Boise to Seattle. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Seattle. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/1712:00 pm -
1 stop5h 27m
Wed 11/189:05 am -
1 stop6h 37m
Deal found 10/27![United Airlines logo]()
$231
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:20 am -
2 stops14h 20m
Wed 11/186:10 am -
1 stop8h 00m
Deal found 10/27![Southwest logo]()
$236
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:49 pm -
1 stop22h 48m
Mon 11/239:53 pm -
1 stop20h 07m
Deal found 10/27![Frontier logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:33 am -
Nonstop1h 47m
Tue 12/18:09 pm -
1 stop25h 18m
Deal found 10/25![Alaska Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/257:10 pm -
1 stop6h 49m
Wed 12/29:01 am -
1 stop4h 49m
Deal found 10/28![United Airlines logo]()
$229
This Delta deal was found by Cheapflights users on 10/27. 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 11/268:55 am -
Nonstop2h 04m
Sun 12/69:03 am -
Nonstop1h 37m
Deal found 10/27![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 11/264:20 pm -
Nonstop1h 40m
Thu 12/37:05 am -
1 stop14h 22m
Deal found 10/27![Alaska Airlines logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 11/277:00 am -
1 stop5h 09m
Wed 12/27:38 am -
1 stop4h 31m
Deal found 10/28![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 11/286:40 am -
Nonstop2h 00m
Sun 11/299:20 pm -
Nonstop1h 30m
Deal found 10/27![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 11/286:33 am -
Nonstop1h 47m
Sat 12/59:12 am -
1 stop12h 15m
Deal found 10/29![Alaska Airlines logo]()
$222
One-way flights from Boise to SeattleSearch for one-way flight options from Boise to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Boise to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/29. 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 12/226:10 pm -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$114
This Southwest deal was found by Cheapflights users on 10/26. 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.
Mon 11/238:30 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$116
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1512:40 pm -
2 stops10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$119
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 12/135:47 am -
1 stop4h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$124
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/226:31 am -
Nonstop1h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$134
This Super.com deal was found by Cheapflights users on 10/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:55 pm -
1 stop17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:55 pm -
1 stop17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$144
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/58:56 am -
2 stops14h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$156
This Orbitz deal was found by Cheapflights users on 10/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/195:35 am -
1 stop4h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Alaska Airlines logo]()
$159
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 11/278:27 am -
1 stop16h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$160
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/217:10 pm -
1 stop5h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$161
This Super.com deal was found by Cheapflights users on 10/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:49 pm -
1 stop19h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$163
Find flight deals from Boise to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Delta) |
One-way from | $114 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $250 |
Good round-trip deal | $342 or less |
Good one-way deal | $293 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Boise to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 12/15
3:45 pm-10:20 pm
1 stop7h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$114
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sat 12/5
4:35 pm-8:10 pm
1 stop4h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$114
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 12/22
6:10 pm-1:10 am
1 stop8h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$114
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Thu 12/3
6:40 pm-10:20 pm
1 stop4h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$116
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Thu 12/31
5:35 am-8:18 am
1 stop3h 43m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Sat 12/5
8:59 am-10:09 am
Nonstop2h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 12/22
6:31 am-7:20 am
Nonstop1h 49m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
Quickest round-trip
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Tue 12/15
4:10 pm-4:54 pm
Nonstop1h 44m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Thu 12/3
8:59 am-10:09 am
Nonstop2h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Thu 12/24
6:31 am-7:20 am
Nonstop1h 49m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Boise to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boise-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boise to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Boise with our price prediction graph.
BOI-SEA
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 Seattle
Prices
Delays
How far ahead should I book a flight from Boise to Seattle?
Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boise to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Boise to Seattle?
Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of $139). Flying from Boise to Seattle in June is currently the most expensive (average of $331). 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 SEA?
Find hourly flight availability from Boise to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
When flying from Boise to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 12% versus a flight in the evening.
What is the cheapest day to fly from Boise to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Boise to Seattle. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Boise to Seattle flight should consider departing on Thursday at noon 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.
How often are flights from Boise to Seattle delayed?
About 12% of weekly flights between Boise and Seattle have experienced delays in the past year, with the average delay time being 116 minutes.
What is the most punctual flight time for Boise to Seattle flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boise to Seattle flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 9% of flights being delayed.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated October 30, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Delta from Boise to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Boise to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Olympia
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Boise and Seattle flights
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Top 2 airlines flying from Boise to Seattle
Discover the top 2 airlines that operate flights from Boise to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$220 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$282 | FlexibilityNo cancel fee | On-time75% |