What is the cheapest airline that flies from Houston to Idaho?

Frontier, Southwest, and Delta are the most popular carriers operating from Houston to Idaho

What airlines fly to Idaho?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Idaho from Houston according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 6 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

How many flights depart from Houston to Idaho on average per week?

As of July 2026, 11 flights take off from Houston and land in Idaho each week. The most common flight departure day for this route is Fri, with 27% of weekly flights taking off on this day.

When did momondo last update prices for flights from Houston to Idaho?

Prices for flights from Houston to Idaho are updated daily.

How many operators does momondo search for flights from Houston to Idaho?

As of July 2026, there are 6 operators available to choose from for flights from Houston to Idaho.

How old do you have to be to fly from Houston to Idaho?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Idaho.

What documentation or ID do you need to fly to Idaho?

The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$125 Cheap Flights from Houston to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 12:29 pm

IAH

BOI

6h 59m

1 stop

1:24 pm - 10:34 am

BOI

IAH

20h 10m

1 stop

$250Frontier

Tue, Aug 11 - Tue, Aug 18

6:30 am - 11:29 am

IAH

BOI

5h 59m

1 stop

1:24 pm - 12:55 am

BOI

IAH

10h 31m

1 stop

$254Frontier

Thu, Sep 3 - Tue, Sep 8

2:45 pm - 7:45 pm

HOU

BOI

6h 00m

1 stop

6:00 am - 1:55 pm

BOI

HOU

6h 55m

1 stop

$302Southwest

Tue, Aug 11 - Tue, Aug 18

6:10 pm - 11:20 pm

HOU

BOI

6h 10m

1 stop

3:40 pm - 10:10 pm

BOI

HOU

5h 30m

1 stop

$307Southwest

Wed, Aug 5 - Tue, Aug 11

7:30 am - 12:12 pm

IAH

GEG

6h 42m

1 stop

12:36 pm - 11:52 pm

GEG

IAH

9h 16m

1 stop

$309Delta

Sat, Aug 8 - Fri, Aug 14

6:30 am - 1:25 pm

IAH

IDA

7h 55m

1 stop

5:53 pm - 11:56 pm

IDA

IAH

5h 03m

1 stop

$311United Airlines

Tue, Aug 4 - Tue, Aug 11

7:30 am - 12:27 pm

IAH

WYS

5h 57m

1 stop

1:09 pm - 9:50 pm

WYS

IAH

7h 41m

1 stop

$314Delta

Sat, Aug 8 - Tue, Aug 11

5:02 am - 2:02 pm

IAH

GEG

11h 00m

2 stops

3:00 pm - 11:31 pm

GEG

IAH

6h 31m

1 stop

$334American Airlines

Sat, Jul 25 - Tue, Aug 4

8:32 am - 1:59 pm

IAH

GEG

7h 27m

1 stop

5:40 am - 3:31 pm

GEG

IAH

7h 51m

1 stop

$339American Airlines

Tue, Aug 4 - Tue, Aug 18

6:30 am - 1:21 pm

IAH

WYS

7h 51m

1 stop

5:45 pm - 11:56 pm

WYS

IAH

5h 11m

1 stop

$363United Airlines

Thu, Aug 27 - Sat, Aug 29

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Southwest flights from Houston to Idaho

Our best Southwest deals on Houston to Idaho flight tickets

Southwest

Aug 11

HOU2:45 pmHouston Hobby

6h 00m

1 stop

BOI7:45 pmBoise Air Term. Gowen Fld

Aug 18

BOI6:00 amBoise Air Term. Gowen Fld

6h 55m

1 stop

HOU1:55 pmHouston Hobby

$302

Southwest

Aug 5

HOU6:10 pmHouston Hobby

6h 10m

1 stop

BOI11:20 pmBoise Air Term. Gowen Fld

Aug 11

BOI3:40 pmBoise Air Term. Gowen Fld

5h 30m

1 stop

HOU10:10 pmHouston Hobby

$307

Southwest

Aug 5

HOU6:10 pmHouston Hobby

6h 10m

1 stop

BOI11:20 pmBoise Air Term. Gowen Fld

Aug 11

BOI6:00 amBoise Air Term. Gowen Fld

8h 10m

2 stops

HOU3:10 pmHouston Hobby

$312

Frontier flights from Houston to Idaho

Our best Frontier deals on Houston to Idaho flight tickets

Frontier

Aug 11

IAH6:30 amHouston George Bush Intcntl

6h 59m

1 stop

BOI12:29 pmBoise Air Term. Gowen Fld

Aug 18

BOI1:24 pmBoise Air Term. Gowen Fld

20h 10m

1 stop

IAH10:34 amHouston George Bush Intcntl

$250

Frontier

Sep 3

IAH6:30 amHouston George Bush Intcntl

5h 59m

1 stop

BOI11:29 amBoise Air Term. Gowen Fld

Sep 8

BOI1:24 pmBoise Air Term. Gowen Fld

10h 31m

1 stop

IAH12:55 amHouston George Bush Intcntl

$254

Frontier

Jul 30

IAH6:30 amHouston George Bush Intcntl

6h 59m

1 stop

BOI12:29 pmBoise Air Term. Gowen Fld

Aug 6

BOI1:24 pmBoise Air Term. Gowen Fld

6h 50m

1 stop

IAH9:14 pmHouston George Bush Intcntl

$259

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Tue 8/11

6:30 am-12:29 pm

1 stop6h 59m

Boise Air Term. Gowen Fld

Tue 8/18

1:24 pm-10:34 am

1 stop20h 10m

$250

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Thu 9/3

6:30 am-11:29 am

1 stop5h 59m

Boise Air Term. Gowen Fld

Tue 9/8

1:24 pm-12:55 am

1 stop10h 31m

$254

HoustonBoise

HOU - BOI

HOUBOI

Houston Hobby

Tue 8/11

2:45 pm-7:45 pm

1 stop6h 00m

Boise Air Term. Gowen Fld

Tue 8/18

6:00 am-1:55 pm

1 stop6h 55m

$302

Quickest round-trip

HoustonBoise

HOU - BOI

HOUBOI

Houston Hobby

Wed 8/5

6:10 pm-11:20 pm

1 stop6h 10m

Boise Air Term. Gowen Fld

Tue 8/11

3:40 pm-10:10 pm

1 stop5h 30m

$307

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Sat 8/8

7:30 am-12:12 pm

1 stop6h 42m

Spokane

Fri 8/14

12:36 pm-11:52 pm

1 stop9h 16m

$309

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Tue 8/4

6:30 am-1:25 pm

1 stop7h 55m

Idaho Falls Fanning Field

Tue 8/11

5:53 pm-11:56 pm

1 stop5h 03m

$311

HoustonWest Yellowstone

IAH - WYS

IAHWYS

Houston George Bush Intcntl

Sat 8/8

7:30 am-12:27 pm

1 stop5h 57m

West Yellowstone

Tue 8/11

1:09 pm-9:50 pm

1 stop7h 41m

$314

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Sat 7/25

5:02 am-2:02 pm

2 stops11h 00m

Spokane

Tue 8/4

3:00 pm-11:31 pm

1 stop6h 31m

$334

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Tue 8/4

8:32 am-1:59 pm

1 stop7h 27m

Spokane

Tue 8/18

5:40 am-3:31 pm

1 stop7h 51m

$339

HoustonWest Yellowstone

IAH - WYS

IAHWYS

Houston George Bush Intcntl

Thu 8/27

6:30 am-1:21 pm

1 stop7h 51m

West Yellowstone

Sat 8/29

5:45 pm-11:56 pm

1 stop5h 11m

$363

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho?

In general, May is the cheapest month to fly from Houston to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $77. If you don’t want to visit Idaho in May, then you should wait until March to fly from Houston, when ticket prices are also cheap, with an average price of $115.

Cheap Houston to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Idaho

Fastest flight time	3h 26m
Direct flights	Sat and Sun
Airports in Idaho	27 airports

The fastest flight from Houston to Idaho takes 3h 26m

Direct flights go from Houston to Idaho on Saturday and Sunday. There are no airlines offering direct flights.

There are 27 airports in Idaho. From Houston there are direct flights to Spokane (GEG), Jackson Hole (JAC).

Search flight deals

Frequently asked questions about flying from Houston to Idaho

When did momondo last update prices for flights from Houston to Idaho?
Prices for flights from Houston to Idaho are updated daily.
How many operators does momondo search for flights from Houston to Idaho?
As of July 2026, there are 6 operators available to choose from for flights from Houston to Idaho.
How old do you have to be to fly from Houston to Idaho?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Idaho

Compare and see reviews for airlines that fly from Houston to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $77	Free Cancellation	Rating 5.6 2,845 reviews	Search Frontier flights
Delta	PriceFrom $145	Free Cancellation	Rating 7.8 8,453 reviews	Search Delta flights
United Airlines	PriceFrom $215	Free Cancellation	Rating 7.4 9,938 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $248	Free Cancellation	Rating 7.9 12,627 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.1 11,783 reviews	Search American Airlines flights
Southwest	PriceFrom $258	Free Cancellation	Rating 7.9 4,251 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Idaho?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to Idaho. momondo saves you time and could save you money on your trip.

Can I find flights from Houston to Idaho with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Idaho flights to just show those with flexible booking policies.

How can momondo help me find flights from Houston to Idaho?

Once all potential Houston to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Houston to Idaho right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.