$114+ Cheap flights from Idaho to Seattle (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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Oct 27 — Nov 31
Round-trip
1 adult, Economy
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Find cheap flights from Idaho 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
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Cheapest flights from Idaho to SeattleExplore the most affordable flight options available from Idaho to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
Explore the most affordable flight options available from Idaho to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
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.
Mon 12/217:00 am -
Nonstop1h 32m
Thu 1/79:30 pm -
Nonstop1h 19m
Deal found 9/22![Delta logo]()
$209
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 10/2410:34 am -
Nonstop1h 57m
Sun 10/257:15 am -
Nonstop1h 39m
Deal found 9/23![Delta logo]()
$217
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.
Thu 11/1912:24 pm -
1 stop4h 29m
Sat 12/59:45 pm -
Nonstop1h 19m
Deal found 9/25![Delta logo]()
$218
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:12 am -
1 stop5h 07m
Sun 10/257:20 am -
1 stop4h 50m
Deal found 9/23![Alaska Airlines logo]()
$221
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.
Fri 11/64:16 pm -
Nonstop1h 41m
Mon 11/99:24 pm -
Nonstop1h 25m
Deal found 9/23![Alaska Airlines logo]()
$227
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 11/33:45 pm -
1 stop7h 30m
Wed 11/411:35 am -
2 stops9h 05m
Deal found 9/24![Southwest logo]()
$232
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.
Mon 11/95:43 am -
1 stop4h 25m
Mon 11/167:40 am -
1 stop4h 17m
Deal found 9/25![Alaska Airlines logo]()
$234
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.
Mon 10/262:50 pm -
1 stop21h 09m
Wed 10/2812:14 pm -
1 stop24h 40m
Deal found 9/25![Frontier logo]()
$236
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 11/57:57 pm -
1 stop4h 03m
Tue 11/107:40 am -
1 stop4h 17m
Deal found 9/25![Alaska Airlines logo]()
$237
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 12/511:51 am -
Nonstop1h 59m
Mon 12/78:35 am -
Nonstop1h 34m
Deal found 9/24![Alaska Airlines logo]()
$237
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 10/219:15 am -
Nonstop1h 30m
Wed 10/289:45 pm -
Nonstop1h 21m
Deal found 9/23![Delta logo]()
$239
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.
Mon 10/266:50 pm -
1 stop4h 45m
Wed 10/2811:30 am -
2 stops9h 50m
Deal found 9/25![Southwest logo]()
$242
Best flights from Idaho to SeattleDiscover carefully curated flight deals from Idaho to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
Discover carefully curated flight deals from Idaho to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
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.
Mon 11/233:38 pm -
Nonstop1h 53m
Wed 12/22:45 pm -
Nonstop1h 31m
Deal found 9/24![Delta logo]()
$217
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.
Fri 11/64:16 pm -
Nonstop1h 41m
Mon 11/99:24 pm -
Nonstop1h 25m
Deal found 9/24![Alaska Airlines logo]()
$227
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 12/151:05 pm -
1 stop5h 45m
Sun 1/106:00 am -
2 stops9h 05m
Deal found 9/25![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Tue 10/277:10 pm -
1 stop5h 21m
Sat 10/313:35 pm -
1 stop4h 40m
Deal found 9/26![United Airlines logo]()
$317
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.
Thu 11/1912:24 pm -
1 stop4h 29m
Sat 12/59:45 pm -
Nonstop1h 19m
Deal found 9/25![Delta logo]()
$218
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:51 am -
Nonstop1h 59m
Mon 12/78:35 am -
Nonstop1h 34m
Deal found 9/26![Alaska Airlines logo]()
$237
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.
Mon 12/217:00 am -
Nonstop1h 32m
Thu 1/75:45 am -
1 stop6h 01m
Deal found 9/22![Delta logo]()
$218
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.
Fri 12/410:37 am -
Nonstop1h 57m
Sun 12/62:45 pm -
Nonstop1h 31m
Deal found 9/24![Delta logo]()
$227
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.
Fri 11/611:33 am -
Nonstop1h 58m
Mon 11/98:15 am -
Nonstop1h 36m
Deal found 9/23![Alaska Airlines logo]()
$257
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.
Mon 10/266:50 pm -
1 stop4h 45m
Mon 11/22:35 pm -
2 stops9h 15m
Deal found 9/25![Southwest logo]()
$307
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 10/219:15 am -
Nonstop1h 30m
Wed 10/289:45 pm -
Nonstop1h 21m
Deal found 9/23![Delta logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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 10/277:00 am -
1 stop9h 09m
Sat 10/317:17 am -
Nonstop1h 39m
Deal found 9/26![Alaska Airlines logo]()
$270
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 10/304:18 pm -
Nonstop1h 38m
Sun 11/17:40 am -
1 stop4h 17m
Deal found 9/22![Alaska Airlines logo]()
$272
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.
Fri 11/61:00 pm -
1 stop4h 24m
Mon 11/95:35 am -
1 stop5h 33m
Deal found 9/24![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:20 am -
1 stop14h 06m
Sat 10/313:51 pm -
Nonstop1h 26m
Deal found 9/26![Alaska Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:45 am -
Nonstop1h 54m
Sat 10/3112:47 pm -
Nonstop1h 33m
Deal found 9/26![Delta logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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.
Fri 10/301:58 pm -
Nonstop2h 06m
Sat 10/318:10 pm -
Nonstop1h 49m
Deal found 9/26![Alaska Airlines logo]()
$327
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.
Thu 10/89:15 am -
Nonstop1h 30m
Mon 10/129:45 pm -
Nonstop1h 21m
Deal found 9/23![Delta logo]()
$309
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.
Thu 10/296:09 am -
Nonstop2h 11m
Wed 12/212:12 pm -
Nonstop1h 55m
Deal found 9/23![Alaska Airlines logo]()
$327
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.
Fri 10/99:15 am -
Nonstop1h 30m
Tue 10/139:45 pm -
Nonstop1h 21m
Deal found 9/24![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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.
Sun 10/256:09 am -
Nonstop2h 11m
Sun 11/18:05 pm -
Nonstop1h 49m
Deal found 9/26![Alaska Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/206:45 pm -
1 stop6h 26m
Tue 1/265:45 am -
1 stop5h 42m
Deal found 9/26![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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 2/41:56 pm -
Nonstop2h 06m
Sun 2/78:05 pm -
Nonstop1h 48m
Deal found 9/26![Alaska Airlines logo]()
$357
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.
Wed 11/183:55 pm -
1 stop8h 05m
Sat 12/512:12 pm -
Nonstop1h 55m
Deal found 9/25![Alaska Airlines logo]()
$375
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 10/291:05 pm -
1 stop4h 50m
Wed 12/25:30 am -
1 stop5h 47m
Deal found 9/22![Delta logo]()
$388
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/203:58 pm -
2 stops28h 04m
Tue 1/267:45 am -
1 stop4h 34m
Deal found 9/26![Alaska Airlines logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:53 pm -
Nonstop2h 04m
Mon 11/98:13 pm -
2 stops16h 03m
Deal found 9/26![Alaska Airlines logo]()
$397
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 10/201:00 pm -
1 stop7h 02m
Sat 10/245:30 am -
1 stop5h 50m
Deal found 9/25![Delta logo]()
$447
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 11/1012:24 pm -
1 stop6h 17m
Fri 11/135:35 am -
1 stop6h 09m
Deal found 9/25![Delta logo]()
$556
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 12/197:00 am -
Nonstop1h 32m
Fri 1/17:50 pm -
Nonstop1h 19m
Deal found 9/23![Delta logo]()
$568
Last-minute flights from Idaho to SeattleDiscover last-minute flight deals from Idaho to Seattle. Data last updated September 27, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Seattle. Data last updated September 27, 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.
Wed 10/219:15 am -
Nonstop1h 30m
Wed 10/289:45 pm -
Nonstop1h 21m
Deal found 9/23![Delta logo]()
$239
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 10/236:45 am -
Nonstop1h 54m
Mon 10/267:15 am -
Nonstop1h 39m
Deal found 9/23![Delta logo]()
$227
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 10/2410:34 am -
Nonstop1h 57m
Mon 10/267:15 am -
Nonstop1h 39m
Deal found 9/23![Delta logo]()
$217
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 10/2410:34 am -
Nonstop1h 57m
Sun 10/257:15 am -
Nonstop1h 39m
Deal found 9/22![Delta logo]()
$218
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:12 am -
1 stop5h 07m
Sun 10/257:20 am -
1 stop4h 50m
Deal found 9/23![Alaska Airlines logo]()
$221
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 10/2411:10 am -
1 stop8h 00m
Sat 10/317:40 am -
2 stops10h 25m
Deal found 9/24![Southwest logo]()
$232
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:30 pm -
1 stop5h 10m
Mon 10/266:50 pm -
1 stop5h 55m
Deal found 9/23![Southwest logo]()
$237
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.
Sat 10/242:06 pm -
Nonstop1h 35m
Mon 10/268:07 pm -
1 stop16h 40m
Deal found 9/23![Alaska Airlines logo]()
$255
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.
Mon 10/262:50 pm -
1 stop21h 09m
Wed 10/2812:14 pm -
1 stop24h 40m
Deal found 9/25![Frontier logo]()
$236
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.
Mon 10/266:50 pm -
1 stop4h 45m
Wed 10/2811:30 am -
2 stops9h 50m
Deal found 9/25![Southwest logo]()
$242
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.
Tue 10/274:20 pm -
1 stop5h 13m
Sat 10/313:51 pm -
Nonstop1h 26m
Deal found 9/24![Alaska Airlines logo]()
$252
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.
Fri 10/305:59 am -
1 stop3h 26m
Sun 11/17:40 am -
1 stop4h 17m
Deal found 9/25![Alaska Airlines logo]()
$247
One-way flights from Idaho to SeattleSearch for one-way flight options from Idaho to Seattle. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
Search for one-way flight options from Idaho to Seattle. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
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.
Sat 10/241:32 pm -
1 stop3h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Alaska Airlines logo]()
$114
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:57 pm -
1 stop4h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$119
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:57 pm -
1 stop4h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$120
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 11/155:43 am -
1 stop3h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Alaska Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:50 pm -
2 stops53h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Frontier logo]()
$125
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 10/243:36 pm -
Nonstop1h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$134
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 10/2411:48 am -
Nonstop1h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$139
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 11/153:38 pm -
Nonstop1h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$144
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:50 pm -
1 stop19h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$147
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:55 pm -
1 stop17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$149
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 10/241:00 pm -
1 stop7h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$149
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:45 pm -
1 stop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Southwest logo]()
$154
Find flight deals from Idaho to Seattle
Keep the following information in mind while searching for Idaho to Seattle flight deals. Data was last updated September 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (Delta) |
One-way from | $114 (Alaska Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $283 |
Good round-trip deal | $248 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho 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 September 27, 2026.
Use the filters below to find and compare flights from Idaho 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
Mon 2/1
4:05 pm-8:48 pm
1 stop5h 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
Tue 10/27
6:43 am-7:20 am
Nonstop1h 37m
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
Sat 10/24
3:36 pm-4:24 pm
Nonstop1h 48m
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
Mon 11/23
4:20 pm-5:00 pm
Nonstop1h 40m
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
Sat 10/17
5:15 pm-8:30 pm
1 stop4h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$154
BoiseSeattle
BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl
BOISEA
Boise Air Term. Gowen Fld
Mon 11/23
7:10 pm-11:18 pm
1 stop5h 08m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$154
HaileySeattle
SUN Hailey Sun Valley-Friedman - SEA Seattle/Tacoma Intl
SUNSEA
Hailey Sun Valley-Friedman
Fri 10/23
11:48 am-12:44 pm
Nonstop1h 56m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
HaileySeattle
SUN Hailey Sun Valley-Friedman - SEA Seattle/Tacoma Intl
SUNSEA
Hailey Sun Valley-Friedman
Mon 11/23
11:38 am-12:34 pm
Nonstop1h 56m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
HaileySeattle
SUN Hailey Sun Valley-Friedman - SEA Seattle/Tacoma Intl
SUNSEA
Hailey Sun Valley-Friedman
Thu 11/26
12:58 pm-6:41 pm
1 stop6h 43m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$169
HaileySeattle
SUN Hailey Sun Valley-Friedman - SEA Seattle/Tacoma Intl
SUNSEA
Hailey Sun Valley-Friedman
Fri 10/23
1:00 pm-4:55 pm
1 stop4h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$169
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Idaho with our price prediction graph.
LWS-SEA
BOI-SEA
SUN-SEA
IDA-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 Idaho to Seattle
USID-SEA
LWS-SEA
BOI-SEA
SUN-SEA
IDA-SEA
What is the cheapest month to book a flight from Idaho to Seattle?
Currently, April is the cheapest month in which you can book a flight from Idaho to Seattle (average of $166). Flying from Idaho to Seattle in July is currently the most expensive (average of $363). 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 ID to SEA?
Find hourly flight availability from Idaho 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 September 27, 2026.
It’s optimal to fly from Idaho to Seattle at noon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the evening.
Weekly flight availability from Idaho to Seattle
Explore weekly flight availability from Idaho to Seattle. 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 27, 2026.
The most flights from USID to SEA are scheduled on a Saturday (43 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Idaho to Seattle?
Airfare is typical for this route at the moment.
Idaho to Seattle flights typically cost between $207 and $324 in October.The cheapest round-trip price found within the last 5 days was $217 on Delta (Oct 24-Oct 26).
How far ahead should I book a flight from Idaho to Seattle?
Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho 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 day to fly from Idaho to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Idaho to Seattle. Price data was last updated on September 26, 2026.
Travelers seeking maximum savings on their Idaho to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Idaho 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
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Seattle flight routes
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Alternative routes for Idaho to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Seattle by cabin class
Find flights from Idaho to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Seattle flights
Browse other Idaho and Seattle flight options. Last updated on September 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 27, 2026.
Idaho to Seattle flights
Consider these flights traveling from Idaho to Seattle.
Top 2 airlines flying from Idaho to Seattle
Discover the top 2 airlines that operate flights from Idaho 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 September 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$365 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$311 | FlexibilityNo cancel fee | On-time75% |