What airlines fly to Idaho?

United Airlines, Delta and American Airlines 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 32% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

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

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

As of February 2026, 4 flights take off from Houston and land in Idaho each week. The most common flight departure day for this route is Sat, with 50% 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 February 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.

$95 Cheap Flights from Houston to Idaho in 2026

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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.

6:39 am - 11:27 am

IAH

GEG

6h 48m

1 stop

12:59 pm - 12:33 am

GEG

IAH

9h 34m

1 stop

$190Frontier

Thu, Feb 26 - Sun, Mar 1

6:45 am - 11:08 am

IAH

BOI

5h 23m

1 stop

11:53 am - 8:49 am

BOI

IAH

19h 56m

1 stop

$190Frontier

Thu, Apr 16 - Sun, Apr 19

6:02 am - 11:44 am

IAH

GEG

7h 42m

1 stop

3:15 pm - 11:33 pm

GEG

IAH

6h 18m

1 stop

$251American Airlines

Wed, Mar 11 - Wed, Apr 22

6:02 am - 11:44 am

IAH

GEG

7h 42m

1 stop

6:05 am - 8:20 pm

GEG

IAH

12h 15m

2 stops

$256American Airlines

Wed, Mar 11 - Wed, Apr 22

7:15 am - 12:09 pm

IAH

BOI

5h 54m

1 stop

10:35 am - 9:36 pm

BOI

IAH

10h 01m

2 stops

$266Delta

Wed, Mar 4 - Mon, Mar 9

7:15 am - 6:22 pm

IAH

BOI

12h 07m

2 stops

10:35 am - 9:36 pm

BOI

IAH

10h 01m

2 stops

$271Delta

Wed, Mar 4 - Mon, Mar 9

4:35 pm - 12:10 am

HOU

GEG

9h 35m

1 stop

1:45 pm - 11:25 pm

GEG

HOU

7h 40m

1 stop

$275Southwest

Tue, Mar 31 - Tue, Apr 7

7:50 pm - 12:45 am

HOU

BOI

5h 55m

1 stop

4:05 pm - 10:20 pm

BOI

HOU

5h 15m

1 stop

$291Southwest

Mon, Apr 13 - Tue, Apr 21

9:57 am - 3:39 pm

IAH

IDA

6h 42m

1 stop

5:20 pm - 11:59 pm

IDA

IAH

5h 39m

1 stop

$332United Airlines

Fri, Apr 3 - Sun, Apr 5

7:00 am - 1:24 pm

IAH

IDA

7h 24m

1 stop

2:30 pm - 11:14 pm

IDA

IAH

7h 44m

1 stop

$338United Airlines

Thu, Apr 2 - Sat, Apr 4

Southwest flights from Houston to Idaho

Our best Southwest deals on Houston to Idaho flight tickets

Southwest

Mar 31

HOU4:35 pmHouston Hobby

9h 35m

1 stop

GEG12:10 amSpokane

Apr 7

GEG1:45 pmSpokane

7h 40m

1 stop

HOU11:25 pmHouston Hobby

$275

Southwest

Apr 13

HOU7:50 pmHouston Hobby

5h 55m

1 stop

BOI12:45 amBoise Air Term. Gowen Fld

Apr 21

BOI4:05 pmBoise Air Term. Gowen Fld

5h 15m

1 stop

HOU10:20 pmHouston Hobby

$291

Southwest

Apr 13

HOU6:25 pmHouston Hobby

6h 05m

1 stop

BOI11:30 pmBoise Air Term. Gowen Fld

Apr 21

BOI10:05 amBoise Air Term. Gowen Fld

7h 45m

2 stops

HOU6:50 pmHouston Hobby

$309

Alaska Airlines flights from Houston to Idaho

Our best Alaska Airlines deals on Houston to Idaho flight tickets

Alaska Airlines

Mar 4

IAH5:33 pmHouston George Bush Intcntl

7h 26m

1 stop

BOI11:59 pmBoise Air Term. Gowen Fld

Mar 9

BOI5:40 amBoise Air Term. Gowen Fld

11h 13m

1 stop

IAH5:53 pmHouston George Bush Intcntl

$261

Alaska Airlines

Apr 29

IAH4:46 pmHouston George Bush Intcntl

8h 25m

1 stop

GEG11:11 pmSpokane

May 4

GEG5:00 amSpokane

8h 46m

1 stop

IAH3:46 pmHouston George Bush Intcntl

$270

Alaska Airlines

May 23

IAH6:18 pmHouston George Bush Intcntl

6h 40m

1 stop

BOI11:58 pmBoise Air Term. Gowen Fld

May 26

BOI8:48 pmBoise Air Term. Gowen Fld

19h 30m

1 stop

IAH5:18 pmHouston George Bush Intcntl

$309

Fly from

Fly to

Route

Depart

Return

Price

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Thu 2/26

6:39 am-11:27 am

1 stop6h 48m

Spokane

Sun 3/1

12:59 pm-12:33 am

1 stop9h 34m

$190

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Thu 4/16

6:45 am-11:08 am

1 stop5h 23m

Boise Air Term. Gowen Fld

Sun 4/19

11:53 am-8:49 am

1 stop19h 56m

$190

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Wed 3/11

6:02 am-11:44 am

1 stop7h 42m

Spokane

Wed 4/22

3:15 pm-11:33 pm

1 stop6h 18m

$251

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Wed 3/11

6:02 am-11:44 am

1 stop7h 42m

Spokane

Wed 4/22

6:05 am-8:20 pm

2 stops12h 15m

$256

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Wed 3/4

7:15 am-12:09 pm

1 stop5h 54m

Boise Air Term. Gowen Fld

Mon 3/9

10:35 am-9:36 pm

2 stops10h 01m

$266

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Wed 3/4

7:15 am-6:22 pm

2 stops12h 07m

Boise Air Term. Gowen Fld

Mon 3/9

10:35 am-9:36 pm

2 stops10h 01m

$271

HoustonSpokane

HOU - GEG

HOUGEG

Houston Hobby

Tue 3/31

4:35 pm-12:10 am

1 stop9h 35m

Spokane

Tue 4/7

1:45 pm-11:25 pm

1 stop7h 40m

$275

HoustonBoise

HOU - BOI

HOUBOI

Houston Hobby

Mon 4/13

7:50 pm-12:45 am

1 stop5h 55m

Boise Air Term. Gowen Fld

Tue 4/21

4:05 pm-10:20 pm

1 stop5h 15m

$291

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Fri 4/3

9:57 am-3:39 pm

1 stop6h 42m

Idaho Falls Fanning Field

Sun 4/5

5:20 pm-11:59 pm

1 stop5h 39m

$332

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Thu 4/2

7:00 am-1:24 pm

1 stop7h 24m

Idaho Falls Fanning Field

Sat 4/4

2:30 pm-11:14 pm

1 stop7h 44m

$338

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, April 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 $268. If you don’t want to visit Idaho in April, then you should wait until August to fly from Houston, when ticket prices are also cheap, with an average price of $270.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Houston for as low as $267 on momondo.

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 20m
Direct flights	Sat and Sun
Airports in Idaho	27 airports

The fastest flight from Houston to Idaho takes 3h 20m

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

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 February 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
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,205 reviews	Search Delta flights
Southwest	PriceFrom $208	Free Cancellation	Rating 8.0 4,286 reviews	Search Southwest flights
United Airlines	PriceFrom $208	Free Cancellation	Rating 7.4 9,296 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $248	Free Cancellation	Rating 8.0 11,885 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.2 11,297 reviews	Search American Airlines 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.