$94+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Idaho 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 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 November 10, 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 November 10, 2026.
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/75:30 am -
1 stop5h 47m
Mon 12/146:59 pm -
1 stop6h 06m
Deal found 11/8![Delta logo]()
$187
This SmartFares deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Tue 12/225:41 pm -
Nonstop1h 25m
Tue 12/296:00 pm -
Nonstop1h 51m
Deal found 11/7![Alaska Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/268:39 am -
Nonstop1h 34m
Sat 1/22:10 pm -
Nonstop1h 50m
Deal found 11/9![Delta logo]()
$217
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:02 pm -
Nonstop1h 24m
Sun 12/62:07 pm -
Nonstop1h 44m
Deal found 11/5![Alaska Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/127:15 am -
Nonstop1h 41m
Sun 12/137:18 pm -
Nonstop1h 56m
Deal found 11/8![Delta logo]()
$226
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/237:15 am -
Nonstop1h 29m
Mon 12/286:31 am -
Nonstop1h 49m
Deal found 11/9![Alaska Airlines logo]()
$227
This flugladen.de deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:25 pm -
1 stop3h 38m
Sun 12/135:47 am -
1 stop3h 48m
Deal found 11/8![Alaska Airlines logo]()
$228
This Trip.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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.
Thu 12/247:15 am -
Nonstop1h 29m
Thu 12/316:31 am -
Nonstop1h 49m
Deal found 11/9![Alaska Airlines logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/254:11 pm -
Nonstop1h 29m
Fri 12/258:46 pm -
Nonstop1h 41m
Deal found 11/9![Alaska Airlines logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/177:15 am -
Nonstop1h 29m
Fri 1/11:12 pm -
Nonstop1h 39m
Deal found 11/5![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/209:40 pm -
Nonstop1h 19m
Wed 12/237:00 am -
Nonstop1h 32m
Deal found 11/8![Delta logo]()
$239
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/55:05 am -
2 stops8h 05m
Sat 12/124:35 pm -
1 stop4h 35m
Deal found 11/5![Southwest logo]()
$242
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 November 10, 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 November 10, 2026.
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/209:40 pm -
Nonstop1h 19m
Wed 12/237:00 am -
Nonstop1h 32m
Deal found 11/8![Delta logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/279:30 pm -
Nonstop1h 29m
Mon 1/47:15 pm -
1 stop28h 45m
Deal found 11/5![Alaska Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/411:35 am -
2 stops9h 05m
Mon 12/712:40 pm -
1 stop8h 00m
Deal found 11/5![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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.
Sun 12/69:01 am -
1 stop6h 49m
Sun 12/138:15 am -
1 stop5h 05m
Deal found 11/8![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/209:40 pm -
Nonstop1h 19m
Thu 12/247:00 am -
Nonstop1h 32m
Deal found 11/7![Delta logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/247:16 am -
1 stop13h 50m
Tue 12/298:46 pm -
Nonstop1h 41m
Deal found 11/5![Alaska Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/2410:35 am -
Nonstop1h 53m
Mon 12/281:40 pm -
Nonstop2h 06m
Deal found 11/8![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/49:45 pm -
Nonstop1h 19m
Fri 12/119:08 am -
Nonstop1h 31m
Deal found 11/7![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 1/12:05 pm -
2 stops7h 45m
Tue 1/55:45 am -
1 stop7h 25m
Deal found 11/5![Southwest logo]()
$326
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 2/312:35 pm -
Nonstop1h 46m
Sat 2/61:56 pm -
Nonstop2h 06m
Deal found 11/5![Alaska Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:16 pm -
1 stop7h 14m
Fri 12/1112:48 pm -
1 stop6h 40m
Deal found 11/6![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
1 stop9h 55m
Wed 12/93:30 pm -
1 stop8h 20m
Deal found 11/9![Southwest logo]()
$332
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/229:40 pm -
Nonstop1h 19m
Fri 12/2512:20 pm -
1 stop6h 23m
Deal found 11/7![Delta logo]()
$278
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 1/2612:00 pm -
1 stop28h 46m
Thu 2/47:59 pm -
Nonstop1h 51m
Deal found 11/5![Alaska Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/255:40 am -
2 stops11h 20m
Mon 1/48:30 pm -
1 stop5h 50m
Deal found 11/5![Southwest logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/812:10 pm -
1 stop6h 45m
Tue 12/1511:42 am -
Nonstop1h 41m
Deal found 11/9![Alaska Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/55:30 am -
1 stop5h 47m
Wed 12/95:35 am -
1 stop4h 44m
Deal found 11/8![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 1/95:50 am -
2 stops11h 05m
Wed 1/1311:40 am -
2 stops8h 10m
Deal found 11/5![Southwest logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” 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 1/164:29 pm -
1 stop20h 44m
Tue 1/197:59 pm -
Nonstop1h 51m
Deal found 11/10![Alaska Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 3/19:20 am -
1 stop4h 13m
Mon 3/81:20 pm -
1 stop4h 33m
Deal found 11/5![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
2 stops9h 20m
Sun 12/1311:15 am -
2 stops7h 45m
Deal found 11/8![Southwest logo]()
$362
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 11/229:45 pm -
Nonstop1h 18m
Sat 11/289:08 am -
Nonstop1h 39m
Deal found 11/6![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/168:05 pm -
Nonstop1h 51m
Sat 12/191:52 pm -
Nonstop2h 10m
Deal found 11/5![Alaska Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/215:20 am -
1 stop6h 20m
Sat 12/267:00 am -
Nonstop1h 32m
Deal found 11/6![Delta logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/244:59 pm -
1 stop24h 06m
Mon 12/287:59 pm -
Nonstop1h 54m
Deal found 11/5![Alaska Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 11/239:45 pm -
Nonstop1h 18m
Fri 11/279:08 am -
Nonstop1h 39m
Deal found 11/7![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 11/209:45 pm -
Nonstop1h 18m
Tue 11/249:08 am -
Nonstop1h 39m
Deal found 11/5![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/18:35 am -
Nonstop1h 34m
Sat 12/511:51 am -
Nonstop1h 59m
Deal found 11/5![Alaska Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 11/249:45 pm -
Nonstop1h 18m
Sat 11/289:08 am -
Nonstop1h 39m
Deal found 11/9![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/811:50 am -
2 stops24h 27m
Tue 12/156:00 am -
Nonstop2h 21m
Deal found 11/9![Alaska Airlines logo]()
$420
Last-minute flights from Seattle to IdahoDiscover last-minute flight deals from Seattle to Idaho. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Idaho. Data last updated November 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:02 pm -
Nonstop1h 24m
Sun 12/62:07 pm -
Nonstop1h 44m
Deal found 11/5![Alaska Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/55:05 am -
2 stops8h 05m
Sat 12/124:35 pm -
1 stop4h 35m
Deal found 11/5![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/75:30 am -
1 stop5h 47m
Mon 12/146:59 pm -
1 stop6h 06m
Deal found 11/8![Delta logo]()
$187
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/127:15 am -
Nonstop1h 41m
Sun 12/137:18 pm -
Nonstop1h 56m
Deal found 11/8![Delta logo]()
$226
This flugladen.de deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:25 pm -
1 stop3h 38m
Sun 12/135:47 am -
1 stop3h 48m
Deal found 11/8![Alaska Airlines logo]()
$228
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/177:15 am -
Nonstop1h 29m
Fri 1/11:12 pm -
Nonstop1h 39m
Deal found 11/5![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/209:40 pm -
Nonstop1h 19m
Wed 12/237:00 am -
Nonstop1h 32m
Deal found 11/8![Delta logo]()
$239
This SmartFares deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Tue 12/225:41 pm -
Nonstop1h 25m
Tue 12/296:00 pm -
Nonstop1h 51m
Deal found 11/7![Alaska Airlines logo]()
$201
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/237:15 am -
Nonstop1h 29m
Mon 12/286:31 am -
Nonstop1h 49m
Deal found 11/9![Alaska Airlines logo]()
$227
This Trip.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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.
Thu 12/247:15 am -
Nonstop1h 29m
Thu 12/316:31 am -
Nonstop1h 49m
Deal found 11/9![Alaska Airlines logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/254:11 pm -
Nonstop1h 29m
Fri 12/258:46 pm -
Nonstop1h 41m
Deal found 11/9![Alaska Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/268:39 am -
Nonstop1h 34m
Sat 1/22:10 pm -
Nonstop1h 50m
Deal found 11/9![Delta logo]()
$217
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 November 10, 2026.
Search for one-way flight options from Seattle to Idaho. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/75:30 am -
1 stop5h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$94
This Cheapflightsfares deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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.
Sun 1/1011:53 am -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/109:09 pm -
1 stop19h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$103
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/194:45 pm -
1 stop6h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Alaska Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/161:00 pm -
2 stops9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$124
This WhyPayMore deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/87:59 pm -
1 stop2h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Alaska Airlines logo]()
$127
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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.
Sun 12/67:00 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![United Airlines logo]()
$129
This Cheapflightsfares deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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.
Sun 1/36:25 pm -
1 stop21h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$133
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/1011:35 am -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$134
This Expedia deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Wed 12/237:15 am -
Nonstop1h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Alaska Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/316:45 am -
2 stops12h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Southwest logo]()
$140
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/107:50 pm -
Nonstop1h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $187 (Delta) |
One-way from | $94 (Delta) |
Popular in | November |
Cheapest in | January |
Average price | $346 |
Good round-trip deal | $227 or less |
Good one-way deal | $208 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 November 10, 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
Sat 12/19
4:45 pm-11:59 pm
1 stop6h 14m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Sun 2/7
7:00 am-2:52 pm
1 stop6h 52m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Sun 12/6
8:10 am-12:11 pm
1 stop3h 01m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Fri 1/8
12:45 pm-10:15 pm
2 stops8h 30m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$134
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Thu 12/10
11:35 am-9:40 pm
2 stops9h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$134
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Fri 12/18
9:20 pm-11:52 pm
Nonstop1h 32m
Boise Air Term. Gowen Fld
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
Thu 12/10
7:50 pm-10:24 pm
Nonstop1h 34m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
Quickest round-trip
SeattleBoise
SEA Seattle/Tacoma Intl - BOI Boise Air Term. Gowen Fld
SEABOI
Seattle/Tacoma Intl
Mon 12/28
2:44 pm-5:15 pm
Nonstop1h 31m
Boise Air Term. Gowen Fld
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
Sun 1/3
9:19 pm-11:51 pm
Nonstop1h 32m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
SeattleHailey
SEA Seattle/Tacoma Intl - SUN Hailey Sun Valley-Friedman
SEASUN
Seattle/Tacoma Intl
Sat 1/16
8:20 am-10:56 am
Nonstop1h 36m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
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-IDA
SEA-BOI
SEA-LWS
SEA-SUN
SEA-TWF
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-IDA
SEA-BOI
SEA-LWS
SEA-SUN
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 November is currently the most expensive (average of $369). 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 November 10, 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 14% 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 November 10, 2026.
The most flights from SEA to USID are scheduled on a Sunday (41 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Seattle to Idaho?
Airfare is below average for this route at the moment.
Seattle to Idaho flights typically cost between $237 and $467 in December.The cheapest round-trip price found within the last 5 days was $201 on Alaska Airlines (Dec 22-Dec 29).
How far ahead should I book a flight from Seattle to Idaho?
The best time to book flights from Seattle to Idaho is 61 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 November 7, 2026.
Travelers seeking maximum savings on their Seattle to Idaho flight should consider departing on Monday evenings 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 November 10, 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.
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
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
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Complete your trip
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Search flights from Seattle to Idaho by cabin class
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Seattle and Idaho flights
Browse other Seattle and Idaho flight options. Last updated on November 10, 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 November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$108 | Average$313 | FlexibilityNo cancel fee | On-time75% |