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 39% 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?

Delta, Frontier, and Southwest are the most popular carriers operating 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 May 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.

$94 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.

4:14 pm - 12:02 am

IAH

GEG

9h 48m

1 stop

5:20 am - 1:31 pm

GEG

IAH

6h 11m

1 stop

$187Delta

Wed, Jul 8 - Tue, Jul 21

7:55 pm - 12:05 am

HOU

GEG

6h 10m

1 stop

5:45 am - 5:10 pm

GEG

HOU

9h 25m

1 stop

$187Southwest

Wed, Jul 29 - Tue, Aug 4

6:30 am - 12:30 pm

IAH

BOI

7h 00m

1 stop

1:25 pm - 12:44 am

BOI

IAH

10h 19m

1 stop

$230Frontier

Tue, Jun 23 - Tue, Jun 30

6:30 am - 12:29 pm

IAH

BOI

6h 59m

1 stop

1:25 pm - 9:13 pm

BOI

IAH

6h 48m

1 stop

$240Frontier

Tue, Aug 11 - Sun, Aug 16

6:09 am - 3:35 pm

IAH

IDA

10h 26m

1 stop

1:46 pm - 11:59 pm

IDA

IAH

9h 13m

1 stop

$320Alaska Airlines

Wed, Oct 28 - Sat, Oct 31

9:30 am - 3:07 pm

HOU

BOI

6h 37m

1 stop

4:06 pm - 11:59 pm

BOI

HOU

6h 53m

1 stop

$330American Airlines

Thu, May 28 - Thu, Jun 4

5:15 am - 9:53 am

IAH

IDA

5h 38m

1 stop

4:04 pm - 10:57 pm

IDA

IAH

5h 53m

1 stop

$331United Airlines

Mon, Sep 28 - Wed, Sep 30

5:41 am - 11:27 am

HOU

BOI

6h 46m

1 stop

2:49 pm - 11:55 pm

BOI

HOU

8h 06m

1 stop

$332American Airlines

Sat, Aug 22 - Thu, Aug 27

5:57 pm - 1:17 pm

IAH

IDA

20h 20m

1 stop

4:03 pm - 1:46 pm

IDA

IAH

20h 43m

1 stop

$374Alaska Airlines

Sat, May 30 - Sat, Jun 6

6:30 am - 1:32 pm

IAH

WYS

8h 02m

1 stop

5:45 pm - 12:41 am

WYS

IAH

5h 56m

1 stop

$384United Airlines

Tue, May 26 - Sat, May 30

Frontier flights from Houston to Idaho

Our best Frontier deals on Houston to Idaho flight tickets

Frontier

Jun 23

IAH6:30 amHouston George Bush Intcntl

7h 00m

1 stop

BOI12:30 pmBoise Air Term. Gowen Fld

Jun 30

BOI1:25 pmBoise Air Term. Gowen Fld

10h 19m

1 stop

IAH12:44 amHouston George Bush Intcntl

$230

Frontier

Aug 11

IAH6:30 amHouston George Bush Intcntl

6h 59m

1 stop

BOI12:29 pmBoise Air Term. Gowen Fld

Aug 16

BOI1:25 pmBoise Air Term. Gowen Fld

6h 48m

1 stop

IAH9:13 pmHouston George Bush Intcntl

$240

Frontier

Jun 1

IAH10:05 pmHouston George Bush Intcntl

15h 25m

1 stop

BOI12:30 pmBoise Air Term. Gowen Fld

Jun 9

BOI1:25 pmBoise Air Term. Gowen Fld

10h 19m

1 stop

IAH12:44 amHouston George Bush Intcntl

$241

Southwest flights from Houston to Idaho

Our best Southwest deals on Houston to Idaho flight tickets

Southwest

Jul 29

HOU7:55 pmHouston Hobby

6h 10m

1 stop

GEG12:05 amSpokane

Aug 4

GEG5:45 amSpokane

9h 25m

1 stop

HOU5:10 pmHouston Hobby

$187

Southwest

Sep 10

HOU8:05 amHouston Hobby

7h 10m

1 stop

GEG1:15 pmSpokane

Sep 22

GEG6:15 amSpokane

11h 35m

1 stop

HOU7:50 pmHouston Hobby

$238

Southwest

Sep 10

HOU8:00 amHouston Hobby

9h 00m

2 stops

GEG3:00 pmSpokane

Sep 22

GEG6:15 amSpokane

11h 35m

1 stop

HOU7:50 pmHouston Hobby

$244

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Wed 7/8

4:14 pm-12:02 am

1 stop9h 48m

Spokane

Tue 7/21

5:20 am-1:31 pm

1 stop6h 11m

$187

HoustonSpokane

HOU - GEG

HOUGEG

Houston Hobby

Wed 7/29

7:55 pm-12:05 am

1 stop6h 10m

Spokane

Tue 8/4

5:45 am-5:10 pm

1 stop9h 25m

$187

HoustonBoise

IAH - BOI

IAHBOI

Houston George Bush Intcntl

Tue 6/23

6:30 am-12:30 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Tue 6/30

1:25 pm-12:44 am

1 stop10h 19m

$230

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

Sun 8/16

1:25 pm-9:13 pm

1 stop6h 48m

$240

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Wed 10/28

6:09 am-3:35 pm

1 stop10h 26m

Idaho Falls Fanning Field

Sat 10/31

1:46 pm-11:59 pm

1 stop9h 13m

$320

HoustonBoise

HOU - BOI

HOUBOI

Houston Hobby

Thu 5/28

9:30 am-3:07 pm

1 stop6h 37m

Boise Air Term. Gowen Fld

Thu 6/4

4:06 pm-11:59 pm

1 stop6h 53m

$330

Quickest round-trip

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Mon 9/28

5:15 am-9:53 am

1 stop5h 38m

Idaho Falls Fanning Field

Wed 9/30

4:04 pm-10:57 pm

1 stop5h 53m

$331

HoustonBoise

HOU - BOI

HOUBOI

Houston Hobby

Sat 8/22

5:41 am-11:27 am

1 stop6h 46m

Boise Air Term. Gowen Fld

Thu 8/27

2:49 pm-11:55 pm

1 stop8h 06m

$332

HoustonIdaho Falls

IAH - IDA

IAHIDA

Houston George Bush Intcntl

Sat 5/30

5:57 pm-1:17 pm

1 stop20h 20m

Idaho Falls Fanning Field

Sat 6/6

4:03 pm-1:46 pm

1 stop20h 43m

$374

HoustonWest Yellowstone

IAH - WYS

IAHWYS

Houston George Bush Intcntl

Tue 5/26

6:30 am-1:32 pm

1 stop8h 02m

West Yellowstone

Sat 5/30

5:45 pm-12:41 am

1 stop5h 56m

$384

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

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 May 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 $145	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
United Airlines	PriceFrom $215	Free Cancellation	Rating 7.4 9,726 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $248	Free Cancellation	Rating 7.9 12,370 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.1 11,662 reviews	Search American Airlines flights
Southwest	PriceFrom $258	Free Cancellation	Rating 8.0 4,295 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.