$106+ Cheap flights from Seattle (SEA) to Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Oct 26 — Nov 21
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Idaho with Cheapflights
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Cheapest flights from Seattle to IdahoExplore the most affordable flight options available from Seattle to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
Explore the most affordable flight options available from Seattle to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
This MakeMyTrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure MakeMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:17 am -
Nonstop1h 39m
Sat 10/318:25 am -
Nonstop1h 42m
Deal found 9/22![Alaska Airlines logo]()
$197
This Trip.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:48 pm -
Nonstop1h 35m
Wed 10/286:43 am -
Nonstop1h 37m
Deal found 9/21![Alaska Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 9/25. 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.
Sat 11/72:45 pm -
Nonstop1h 29m
Sat 11/143:38 pm -
Nonstop1h 53m
Deal found 9/25![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/249:45 pm -
Nonstop1h 21m
Tue 10/279:15 am -
Nonstop1h 30m
Deal found 9/23![Delta logo]()
$209
This SmartFares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:57 am -
Nonstop1h 38m
Sun 10/252:06 pm -
Nonstop1h 35m
Deal found 9/21![Alaska Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/244:02 pm -
Nonstop1h 31m
Sun 10/2510:34 am -
Nonstop1h 53m
Deal found 9/24![Delta logo]()
$216
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
Nonstop1h 36m
Sat 10/3111:48 am -
Nonstop1h 56m
Deal found 9/24![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Sat 11/75:38 pm -
Nonstop1h 24m
Thu 11/126:21 pm -
Nonstop1h 36m
Deal found 9/25![Alaska Airlines logo]()
$217
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:00 am -
Nonstop1h 30m
Mon 12/78:02 am -
Nonstop1h 53m
Deal found 9/24![Alaska Airlines logo]()
$220
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 11/55:38 pm -
Nonstop1h 24m
Mon 11/161:53 pm -
Nonstop1h 38m
Deal found 9/25![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/285:30 am -
1 stop6h 09m
Sat 10/3112:19 pm -
1 stop6h 43m
Deal found 9/22![Delta logo]()
$228
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 11/259:45 pm -
Nonstop1h 18m
Sun 11/299:08 am -
Nonstop1h 39m
Deal found 9/23![Delta logo]()
$229
Best flights from Seattle to IdahoDiscover carefully curated flight deals from Seattle to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
Discover carefully curated flight deals from Seattle to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
This Delta deal was found by Cheapflights users on 9/25. 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.
Tue 10/279:45 pm -
Nonstop1h 21m
Tue 11/39:15 am -
Nonstop1h 30m
Deal found 9/25![Delta logo]()
$209
This Southwest deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:05 am -
2 stops7h 45m
Wed 10/2811:55 am -
1 stop7h 50m
Deal found 9/21![Southwest logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 1/17:57 pm -
Nonstop1h 28m
Tue 1/57:00 pm -
Nonstop1h 49m
Deal found 9/22![Alaska Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 1/25:00 am -
1 stop5h 12m
Tue 1/511:48 am -
1 stop7h 19m
Deal found 9/22![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/249:45 pm -
Nonstop1h 21m
Sun 10/259:15 am -
Nonstop1h 30m
Deal found 9/22![Delta logo]()
$209
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/249:45 pm -
Nonstop1h 21m
Tue 10/2712:19 pm -
1 stop4h 36m
Deal found 9/24![Delta logo]()
$218
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/2711:30 am -
2 stops9h 50m
Thu 10/296:50 pm -
1 stop4h 45m
Deal found 9/24![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 11/127:50 pm -
Nonstop1h 36m
Sun 11/155:57 pm -
Nonstop1h 47m
Deal found 9/22![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 1/288:05 am -
Nonstop1h 36m
Sun 1/312:53 pm -
1 stop21h 55m
Deal found 9/22![Alaska Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 9/25. 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 10/273:00 pm -
1 stop7h 55m
Sun 11/15:35 pm -
1 stop8h 20m
Deal found 9/25![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/247:15 am -
1 stop4h 05m
Mon 10/261:00 pm -
1 stop4h 55m
Deal found 9/23![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:30 am -
Nonstop1h 36m
Fri 10/3011:48 am -
Nonstop1h 56m
Deal found 9/21![Alaska Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 11/232:35 pm -
1 stop9h 55m
Thu 12/316:40 pm -
1 stop4h 35m
Deal found 9/24![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 9/25. 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.
Sun 10/189:45 pm -
Nonstop1h 21m
Sun 10/259:15 am -
Nonstop1h 30m
Deal found 9/25![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/258:10 pm -
Nonstop1h 49m
Sat 10/311:58 pm -
Nonstop2h 06m
Deal found 9/23![Alaska Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 9/25. 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.
Fri 11/135:15 am -
1 stop9h 00m
Sun 11/155:35 am -
2 stops10h 30m
Deal found 9/25![Southwest logo]()
$323
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/295:30 am -
1 stop5h 50m
Mon 11/21:00 pm -
1 stop4h 24m
Deal found 9/24![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/278:59 pm -
1 stop15h 22m
Sat 10/316:09 am -
Nonstop2h 11m
Deal found 9/21![Alaska Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/109:45 pm -
Nonstop1h 21m
Mon 10/199:15 am -
Nonstop1h 30m
Deal found 9/21![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/214:02 pm -
Nonstop1h 31m
Fri 10/235:59 pm -
Nonstop1h 42m
Deal found 9/21![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/277:36 pm -
2 stops16h 45m
Sat 11/143:55 pm -
1 stop3h 50m
Deal found 9/22![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:10 pm -
Nonstop1h 49m
Tue 10/203:57 pm -
1 stop5h 36m
Deal found 9/24![Alaska Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 9/25. 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.
Sat 10/109:45 pm -
Nonstop1h 21m
Tue 10/1312:19 pm -
1 stop6h 43m
Deal found 9/25![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Mon 10/269:55 pm -
2 stops14h 26m
Wed 10/281:58 pm -
Nonstop2h 06m
Deal found 9/25![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/255:30 am -
1 stop4h 08m
Sat 10/316:04 am -
1 stop4h 06m
Deal found 9/23![Delta logo]()
$337
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 1/59:30 pm -
Nonstop1h 19m
Fri 1/86:25 am -
Nonstop1h 30m
Deal found 9/21![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 2/187:05 am -
Nonstop1h 33m
Sun 2/2110:20 am -
Nonstop1h 49m
Deal found 9/25![Alaska Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 11/47:15 am -
1 stop4h 07m
Mon 11/96:57 pm -
1 stop6h 02m
Deal found 9/24![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/285:30 am -
1 stop6h 09m
Fri 10/309:15 am -
Nonstop1h 30m
Deal found 9/22![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/299:45 pm -
Nonstop1h 21m
Mon 11/212:19 pm -
1 stop28h 05m
Deal found 9/22![Delta logo]()
$361
Last-minute flights from Seattle to IdahoDiscover last-minute flight deals from Seattle to Idaho. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Idaho. Data last updated September 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:02 pm -
Nonstop1h 31m
Sun 10/253:36 pm -
Nonstop1h 48m
Deal found 9/23![Delta logo]()
$227
This Trip.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:48 pm -
Nonstop1h 35m
Wed 10/286:43 am -
Nonstop1h 37m
Deal found 9/21![Alaska Airlines logo]()
$201
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:17 am -
Nonstop1h 39m
Sat 10/312:06 pm -
Nonstop1h 35m
Deal found 9/24![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/249:45 pm -
Nonstop1h 21m
Tue 10/279:15 am -
Nonstop1h 30m
Deal found 9/23![Delta logo]()
$209
This SmartFares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:57 am -
Nonstop1h 38m
Sun 10/252:06 pm -
Nonstop1h 35m
Deal found 9/21![Alaska Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/244:02 pm -
Nonstop1h 31m
Sun 10/2510:34 am -
Nonstop1h 53m
Deal found 9/24![Delta logo]()
$216
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
Nonstop1h 36m
Sat 10/3111:48 am -
Nonstop1h 56m
Deal found 9/24![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:25 am -
2 stops9h 50m
Sat 10/311:10 pm -
1 stop6h 50m
Deal found 9/24![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/249:42 am -
1 stop3h 53m
Sat 10/311:00 pm -
1 stop7h 02m
Deal found 9/24![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 9/25. 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.
Tue 10/278:59 am -
Nonstop1h 28m
Sun 11/18:59 am -
Nonstop1h 55m
Deal found 9/25![Delta logo]()
$217
This MakeMyTrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure MakeMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:17 am -
Nonstop1h 39m
Sat 10/318:25 am -
Nonstop1h 42m
Deal found 9/22![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/285:30 am -
1 stop6h 09m
Sat 10/3112:19 pm -
1 stop6h 43m
Deal found 9/22![Delta logo]()
$228
One-way flights from Seattle to IdahoSearch for one-way flight options from Seattle to Idaho. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
Search for one-way flight options from Seattle to Idaho. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Trip.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Tue 10/277:20 am -
1 stop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Alaska Airlines logo]()
$106
This Trip.com deal was found by Cheapflights users on 9/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:53 pm -
1 stop3h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Alaska Airlines logo]()
$107
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:30 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Southwest logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:09 pm -
2 stops40h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$116
This Southwest deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:30 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$124
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/247:15 am -
Nonstop1h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$134
This CheapOair deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Sat 11/219:53 pm -
1 stop20h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$135
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:16 pm -
1 stop15h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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.
Wed 11/118:09 pm -
2 stops40h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
Nonstop1h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:00 pm -
2 stops40h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$140
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/245:30 am -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$149
Find flight deals from Seattle to Idaho
Keep the following information in mind while searching for Seattle to Idaho flight deals. Data was last updated September 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (MakeMyTrip) |
One-way from | $106 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $297 |
Good round-trip deal | $187 or less |
Good one-way deal | $143 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
Use the filters below to find and compare flights from Seattle to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Thu 12/31
5:00 am-11:12 am
1 stop5h 12m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$124
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Wed 11/18
8:45 am-12:57 pm
1 stop3h 12m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$124
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Fri 11/13
2:47 pm-5:17 pm
Nonstop1h 30m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Sun 10/25
7:17 am-9:56 am
Nonstop1h 39m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Wed 11/18
7:15 am-9:57 am
Nonstop1h 42m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Mon 11/23
7:15 am-9:44 am
Nonstop1h 29m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Thu 11/26
7:20 am-9:49 am
Nonstop1h 29m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
SeattleHailey
SEA Seattle/Tacoma Intl - SUN Hailey Sun Valley-Friedman
SEASUN
Seattle/Tacoma Intl
Wed 11/18
5:35 am-12:08 pm
1 stop5h 33m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Tue 10/20
3:18 pm-11:59 pm
1 stop7h 41m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Tue 10/20
5:35 am-4:00 pm
2 stops9h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Seattle with our price prediction graph.
SEA-BOI
SEA-LWS
SEA-SUN
SEA-IDA
SEA-PIH
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 Seattle to Idaho
SEA-USID
SEA-BOI
SEA-LWS
SEA-SUN
SEA-IDA
What is the cheapest month to book a flight from Seattle to Idaho?
Currently, April is the cheapest month in which you can book a flight from Seattle to Idaho (average of $168). Flying from Seattle to Idaho in July is currently the most expensive (average of $367). 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 SEA to ID?
Find hourly flight availability from Seattle to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 26, 2026.
When flying from Seattle to Idaho, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 23% versus a flight in the afternoon.
Weekly flight availability from Seattle to Idaho
Explore weekly flight availability from Seattle to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 26, 2026.
The most flights from SEA to USID are scheduled on a Thursday (46 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (24 on average).
How much does it cost to fly round-trip from Seattle to Idaho?
Airfare is typical for this route at the moment.
Seattle to Idaho flights typically cost between $157 and $317 in October.The cheapest round-trip price found within the last 5 days was $197 on Alaska Airlines (Oct 28-Oct 31).
How far ahead should I book a flight from Seattle to Idaho?
The best time to book flights from Seattle to Idaho is 51 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 Seattle to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Idaho. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their Seattle to Idaho flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated September 26, 2026.
See what other customers who have flown with Alaska Airlines and Delta from Seattle to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Idaho. 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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Alternative routes for Seattle to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Idaho by cabin class
Find flights from Seattle to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Idaho flights
Browse other Seattle and Idaho flight options. Last updated on September 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Idaho flights
Consider these flights traveling from Seattle to Idaho.
Top 2 airlines flying from Seattle to Idaho
Discover the top 2 airlines that operate flights from Seattle to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$353 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$106 | Average$306 | FlexibilityNo cancel fee | On-time75% |