$109+ Cheap flights from Houston to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — BOI
Sep 1 — Sep 81
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Idaho with Cheapflights
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Cheapest flights from Houston to IdahoExplore the most affordable flight options available from Houston to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
Explore the most affordable flight options available from Houston to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Tue 9/81:24 pm
BOI
- IAH
1 stop19h 11m
Frontier
Deal found 7/29![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:04 pm
IAH
- BOI
1 stop15h 25m
Frontier
Thu 8/2712:24 pm
BOI
- IAH
1 stop11h 16m
Frontier
Deal found 7/28![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:04 pm
IAH
- BOI
1 stop15h 25m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/28![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop20h 10m
Frontier
Deal found 7/28![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:30 am
IAH
- BOI
1 stop5h 59m
Frontier
Tue 9/81:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/30![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 am
IAH
- BOI
2 stops24h 30m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/28![Frontier logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Sun 8/3012:24 pm
BOI
- IAH
1 stop21h 10m
Frontier
Deal found 7/28![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Thu 8/2712:24 pm
BOI
- IAH
1 stop11h 16m
Frontier
Deal found 7/29![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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.
Thu 9/1710:30 am
IAH
- IDA
2 stops26h 34m
Multiple Airlines
Mon 9/217:30 pm
IDA
- IAH
1 stop20h 38m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/410:30 pm
IAH
- GEG
2 stops22h 43m
Multiple Airlines
Sun 11/87:28 pm
GEG
- IAH
1 stop14h 51m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:45 pm
HOU
- BOI
1 stop6h 00m
Southwest
Wed 9/97:05 am
BOI
- HOU
1 stop5h 35m
Southwest
Deal found 7/29![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:35 pm
HOU
- GEG
1 stop8h 40m
Southwest
Thu 9/34:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/30![Southwest logo]()
$314
Best flights from Houston to IdahoDiscover carefully curated flight deals from Houston to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from Houston to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:35 pm
HOU
- GEG
1 stop8h 40m
Southwest
Thu 9/34:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/30![Southwest logo]()
$314
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:31 am
IAH
- GEG
1 stop6h 40m
United Airlines
Tue 9/11:37 pm
GEG
- IAH
1 stop8h 19m
United Airlines
Deal found 7/30![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 11/16:00 am
IAH
- GEG
1 stop8h 15m
Delta
Fri 11/61:00 pm
GEG
- IAH
1 stop8h 55m
Delta
Deal found 8/2![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/55:44 pm
IAH
- GEG
1 stop7h 07m
Alaska Airlines
Mon 11/912:41 pm
GEG
- IAH
1 stop9h 17m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:56 pm
HOU
- IDA
1 stop8h 24m
American Airlines
Tue 9/1512:15 pm
IDA
- HOU
1 stop6h 33m
American Airlines
Deal found 7/28![American Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/256:30 am
HOU
- GEG
1 stop8h 40m
Southwest
Mon 9/284:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/31![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:10 am
IAH
- GEG
1 stop8h 47m
Delta
Thu 9/35:30 am
GEG
- IAH
1 stop6h 07m
Delta
Deal found 7/29![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:16 pm
IAH
- GEG
1 stop6h 55m
Alaska Airlines
Mon 10/55:07 am
GEG
- IAH
1 stop6h 45m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/227:20 am
IAH
- BOI
1 stop7h 18m
United Airlines
Sat 8/292:44 pm
BOI
- IAH
1 stop5h 57m
United Airlines
Deal found 8/2![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:20 pm
HOU
- GEG
1 stop7h 45m
Southwest
Thu 9/174:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/30![Southwest logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:02 am
IAH
- BOI
1 stop7h 33m
Alaska Airlines
Sat 10/171:32 pm
BOI
- IAH
1 stop23h 20m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:06 pm
IAH
- GEG
1 stop6h 47m
Delta
Sun 8/2310:56 pm
GEG
- IAH
1 stop7h 41m
Delta
Deal found 7/29![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:10 pm
HOU
- GEG
1 stop6h 50m
Southwest
Tue 9/297:30 am
GEG
- HOU
1 stop8h 10m
Southwest
Deal found 7/31![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/46:30 am
IAH
- WYS
1 stop7h 50m
United Airlines
Fri 9/186:00 pm
WYS
- IAH
1 stop4h 56m
United Airlines
Deal found 7/31![United Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:34 pm
IAH
- GEG
1 stop7h 19m
Alaska Airlines
Wed 9/305:12 am
GEG
- IAH
1 stop6h 19m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:09 am
HOU
- GEG
1 stop7h 41m
Delta
Sun 10/1810:50 pm
GEG
- HOU
1 stop9h 18m
Delta
Deal found 7/29![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:30 am
HOU
- BOI
2 stops6h 20m
Southwest
Wed 9/93:30 pm
BOI
- HOU
1 stop6h 30m
Southwest
Deal found 7/29![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/55:35 am
IAH
- GEG
1 stop8h 15m
Delta
Mon 11/97:43 pm
GEG
- IAH
2 stops12h 27m
Delta
Deal found 7/31![Delta logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:02 am
IAH
- IDA
1 stop10h 18m
Alaska Airlines
Sat 10/311:58 pm
IDA
- IAH
1 stop9h 01m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:41 am
HOU
- IDA
1 stop6h 49m
American Airlines
Tue 8/1812:06 pm
IDA
- HOU
1 stop6h 45m
American Airlines
Deal found 7/30![American Airlines logo]()
$471
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:45 pm
HOU
- BOI
1 stop6h 00m
Southwest
Tue 9/83:30 pm
BOI
- HOU
1 stop6h 30m
Southwest
Deal found 7/31![Southwest logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/510:31 am
IAH
- WYS
1 stop6h 35m
United Airlines
Sat 9/125:45 pm
WYS
- IAH
1 stop5h 11m
United Airlines
Deal found 8/2![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:20 am
IAH
- BOI
1 stop8h 29m
Delta
Sat 8/291:59 pm
BOI
- IAH
1 stop8h 53m
Delta
Deal found 7/28![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:01 am
IAH
- IDA
1 stop9h 16m
Alaska Airlines
Sat 11/141:53 pm
IDA
- IAH
1 stop9h 05m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:20 pm
HOU
- GEG
1 stop7h 45m
Southwest
Sat 9/126:15 am
GEG
- HOU
2 stops8h 50m
Southwest
Deal found 7/29![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:30 am
IAH
- WYS
1 stop5h 57m
Delta
Sat 8/291:09 pm
WYS
- IAH
1 stop7h 41m
Delta
Deal found 7/30![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am
HOU
- GEG
1 stop6h 10m
Southwest
Fri 10/2312:15 pm
GEG
- HOU
2 stops11h 05m
Southwest
Deal found 7/30![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/226:10 am
IAH
- BOI
1 stop8h 32m
Delta
Sat 8/295:30 am
BOI
- IAH
2 stops12h 11m
Delta
Deal found 8/2![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:15 am
IAH
- IDA
1 stop5h 36m
United Airlines
Mon 8/244:04 pm
IDA
- IAH
1 stop6h 52m
United Airlines
Deal found 8/1![United Airlines logo]()
$464
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/252:45 pm
HOU
- BOI
1 stop6h 00m
Southwest
Tue 9/17:05 am
BOI
- HOU
1 stop5h 35m
Southwest
Deal found 8/2![Southwest logo]()
$329
Last-minute flights from Houston to IdahoDiscover last-minute flight deals from Houston to Idaho. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Idaho. Data last updated August 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:04 pm
IAH
- BOI
1 stop15h 25m
Frontier
Thu 8/2712:24 pm
BOI
- IAH
1 stop11h 16m
Frontier
Deal found 7/28![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:04 pm
IAH
- BOI
1 stop15h 25m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/28![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop20h 10m
Frontier
Deal found 7/28![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Thu 8/2712:24 pm
BOI
- IAH
1 stop11h 16m
Frontier
Deal found 7/31![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Sun 8/3012:24 pm
BOI
- IAH
1 stop21h 10m
Frontier
Deal found 7/28![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 am
IAH
- BOI
2 stops24h 30m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/28![Frontier logo]()
$245
This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:35 am
IAH
- BOI
1 stop24h 54m
Multiple Airlines
Wed 9/22:17 pm
BOI
- IAH
1 stop8h 42m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:35 pm
HOU
- GEG
1 stop8h 40m
Southwest
Thu 9/34:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/30![Southwest logo]()
$314
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:00 pm
IAH
- GEG
1 stop7h 46m
United Airlines
Thu 9/31:37 pm
GEG
- IAH
1 stop6h 04m
United Airlines
Deal found 7/30![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:20 pm
HOU
- GEG
2 stops8h 40m
Southwest
Fri 9/44:20 pm
GEG
- HOU
1 stop5h 50m
Southwest
Deal found 7/30![Southwest logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:38 pm
IAH
- BOI
2 stops23h 51m
Frontier
Tue 9/11:24 pm
BOI
- IAH
1 stop10h 31m
Frontier
Deal found 7/28![Frontier logo]()
$267
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:40 am
HOU
- GEG
1 stop8h 25m
Southwest
Wed 9/26:15 am
GEG
- HOU
1 stop8h 40m
Southwest
Deal found 7/29![Southwest logo]()
$319
One-way flights from Houston to IdahoSearch for one-way flight options from Houston to Idaho. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from Houston to Idaho. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/215:05 am
IAH
- IDA
1 stop7h 29m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$109
This Priceline deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
IAH
- BOI
1 stop6h 59m
Frontier
Deal found 8/1![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:30 am
IAH
- BOI
2 stops29h 27m
Frontier
Deal found 8/1![Frontier logo]()
$123
This Priceline deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 am
IAH
- BOI
1 stop5h 59m
Frontier
Deal found 8/2![Frontier logo]()
$124
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:35 am
IAH
- BOI
1 stop24h 54m
Frontier
Deal found 8/1![Frontier logo]()
$125
This Priceline deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:20 am
IAH
- BOI
1 stop9h 35m
Frontier
Deal found 8/1![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:14 pm
IAH
- BOI
1 stop19h 15m
Frontier
Deal found 7/30![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:30 am
IAH
- BOI
2 stops28h 25m
Frontier
Deal found 8/1![Frontier logo]()
$140
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:06 pm
IAH
- GEG
1 stop6h 20m
Delta
Deal found 7/30![Delta logo]()
$160
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:45 pm
HOU
- BOI
1 stop6h 00m
Southwest
Deal found 8/1![Southwest logo]()
$160
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 11/16:09 am
HOU
- GEG
1 stop7h 41m
Delta
Deal found 8/2![Delta logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Sun 9/1312:18 pm
HOU
- BOI
2 stops26h 37m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$161
Find flight deals from Houston to Idaho
Keep the following information in mind while searching for Houston to Idaho flight deals. Data was last updated August 2, 2026.
Round-trip from | $185 (Kiwi.com) |
|---|---|
One-way from | $109 (Kiwi.com) |
Popular in | March |
Cheapest in | April |
Average price | $413 |
Cheapflights Fare Finder
Customize your flight search to find flights from Houston 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 2,558,603 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from Houston to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonSpokane
HOU - GEG
HOUGEG
Houston Hobby
Thu 8/27
4:35 pm-11:15 pm
1 stop8h 40m
Spokane
Thu 9/3
4:20 pm-12:10 am
1 stop5h 50m
$314
HoustonSpokane
HOU - GEG
HOUGEG
Houston Hobby
Fri 9/25
6:30 am-1:10 pm
1 stop8h 40m
Spokane
Mon 9/28
4:20 pm-12:10 am
1 stop5h 50m
$314
HoustonSpokane
HOU - GEG
HOUGEG
Houston Hobby
Mon 9/14
4:20 pm-10:05 pm
1 stop7h 45m
Spokane
Thu 9/17
4:20 pm-12:10 am
1 stop5h 50m
$314
HoustonSpokane
IAH - GEG
IAHGEG
Houston George Bush Intcntl
Sat 8/29
10:31 am-3:11 pm
1 stop6h 40m
Spokane
Tue 9/1
1:37 pm-11:56 pm
1 stop8h 19m
$319
HoustonSpokane
IAH - GEG
IAHGEG
Houston George Bush Intcntl
Sun 11/1
6:00 am-12:15 pm
1 stop8h 15m
Spokane
Fri 11/6
1:00 pm-11:55 pm
1 stop8h 55m
$319
HoustonSpokane
IAH - GEG
IAHGEG
Houston George Bush Intcntl
Thu 11/5
5:44 pm-10:51 pm
1 stop7h 07m
Spokane
Mon 11/9
12:41 pm-11:58 pm
1 stop9h 17m
$319
HoustonSpokane
IAH - GEG
IAHGEG
Houston George Bush Intcntl
Thu 8/27
6:10 am-12:57 pm
1 stop8h 47m
Spokane
Thu 9/3
5:30 am-1:37 pm
1 stop6h 07m
$319
HoustonSpokane
IAH - GEG
IAHGEG
Houston George Bush Intcntl
Thu 10/1
6:16 pm-11:11 pm
1 stop6h 55m
Spokane
Mon 10/5
5:07 am-1:52 pm
1 stop6h 45m
$319
HoustonBoise
IAH - BOI
IAHBOI
Houston George Bush Intcntl
Tue 10/13
6:02 am-12:35 pm
1 stop7h 33m
Boise Air Term. Gowen Fld
Sat 10/17
1:32 pm-1:52 pm
1 stop23h 20m
$319
HoustonSpokane
HOU - GEG
HOUGEG
Houston Hobby
Wed 9/23
6:10 pm-11:00 pm
1 stop6h 50m
Spokane
Tue 9/29
7:30 am-5:40 pm
1 stop8h 10m
$319
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Houston to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Houston with our price prediction graph.
IAH-IDA
IAH-BOI
IAH-GEG
HOU-BOI
HOU-GEG
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 Houston to Idaho
HO1-USID
IAH-IDA
IAH-BOI
IAH-GEG
HOU-BOI
What is the cheapest month to book a flight from Houston to Idaho?
Currently, January is the cheapest month in which you can book a flight from Houston to Idaho (average of $288). Flying from Houston to Idaho in March is currently the most expensive (average of $628). 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.
How much does it cost to fly round-trip from Houston to Idaho?
Airfare is below average for this route at the moment.
Houston to Idaho flights typically cost between $306 and $463 in September.The cheapest round-trip price found within the last 5 days was $185 on Frontier (Sep 1-Sep 8).
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 August 2, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Houston to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from Houston 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 Houston 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 Houston to Idaho by cabin class
Find flights from Houston to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Houston and Idaho flights
Browse other Houston and Idaho flight options. Last updated on August 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Houston to Idaho flights
Consider these flights traveling from Houston to Idaho.
Top 6 airlines flying from Houston to Idaho
Discover the top 6 airlines that operate flights from Houston 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 2,558,603 searches. Data last updated August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$260 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$705 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$246 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$498 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$417 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$279 | Average$468 | FlexibilityNo cancel fee | On-time71% |