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

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Detroit to Idaho

What airlines fly to Idaho?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Idaho from Detroit according to our data. Delta is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Detroit to Idaho were last updated today.

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

There are 5 operators available for flights from Detroit to Idaho as of February 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit 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.

$126 Cheap Flights from Detroit to Idaho in 2026

1 adult

0 bags

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Find the cheapest flights from Detroit to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:54 am - 11:20 am

DTW

BOI

25h 26m

1 stop

12:15 pm - 10:59 am

BOI

DTW

20h 44m

1 stop

$221Frontier

Wed, Mar 18 - Sun, Mar 22

11:54 am - 11:20 am

DTW

BOI

25h 26m

1 stop

12:15 pm - 10:59 am

BOI

DTW

20h 44m

1 stop

$231Frontier

Wed, Mar 18 - Sun, Mar 22

11:54 am - 11:20 am

DTW

BOI

25h 26m

1 stop

6:03 pm - 10:59 am

BOI

DTW

38h 56m

2 stops

$256Multiple Airlines

Wed, Mar 18 - Mon, Mar 23

7:09 am - 11:59 pm

DTW

BOI

18h 50m

1 stop

6:00 am - 5:44 am

BOI

DTW

21h 44m

1 stop

$263Alaska Airlines

Wed, Apr 29 - Mon, May 4

5:14 pm - 9:31 pm

DTW

GEG

7h 17m

1 stop

6:00 am - 5:44 am

GEG

DTW

20h 44m

1 stop

$273Alaska Airlines

Wed, Apr 22 - Sun, Apr 26

7:00 am - 1:10 pm

DTW

GEG

9h 10m

1 stop

1:50 pm - 11:59 pm

GEG

DTW

7h 09m

1 stop

$277Delta

Wed, Mar 11 - Wed, Mar 18

10:28 am - 9:18 pm

DTW

GEG

13h 50m

2 stops

5:00 am - 2:28 pm

GEG

DTW

6h 28m

1 stop

$282United Airlines

Wed, Mar 11 - Tue, Mar 17

8:00 am - 1:24 pm

DTW

IDA

7h 24m

1 stop

2:31 pm - 10:41 pm

IDA

DTW

6h 10m

1 stop

$321United Airlines

Tue, Jul 28 - Tue, Aug 4

7:00 am - 1:10 pm

DTW

GEG

9h 10m

1 stop

7:38 pm - 6:30 am

GEG

DTW

7h 52m

1 stop

$322Delta

Wed, Apr 8 - Mon, Apr 27

7:45 am - 3:27 pm

DTW

IDA

9h 42m

1 stop

10:21 pm - 4:35 am

IDA

DTW

28h 14m

1 stop

$336Multiple Airlines

Fri, Apr 10 - Mon, Apr 13

American Airlines flights from Detroit to Idaho

Our best American Airlines deals on Detroit to Idaho flight tickets

American Airlines

Mar 24

DTW5:45 amDetroit Metropolitan Wayne County

8h 33m

1 stop

JAC12:18 pmJackson Hole

Apr 1

JAC1:08 pmJackson Hole

8h 50m

1 stop

DTW11:58 pmDetroit Metropolitan Wayne County

$273

American Airlines

Mar 18

DTW6:10 amDetroit Metropolitan Wayne County

8h 38m

1 stop

BOI12:48 pmBoise Air Term. Gowen Fld

Mar 25

BOI1:39 pmBoise Air Term. Gowen Fld

8h 19m

1 stop

DTW11:58 pmDetroit Metropolitan Wayne County

$322

American Airlines

May 7

DTW6:00 amDetroit Metropolitan Wayne County

8h 49m

1 stop

BOI12:49 pmBoise Air Term. Gowen Fld

May 13

BOI1:29 pmBoise Air Term. Gowen Fld

9h 16m

1 stop

DTW12:45 amDetroit Metropolitan Wayne County

$335

Frontier flights from Detroit to Idaho

Our best Frontier deals on Detroit to Idaho flight tickets

Frontier

Mar 18

DTW11:54 amDetroit Metropolitan Wayne County

25h 26m

1 stop

BOI11:20 amBoise Air Term. Gowen Fld

Mar 22

BOI12:15 pmBoise Air Term. Gowen Fld

20h 44m

1 stop

DTW10:59 amDetroit Metropolitan Wayne County

$221

Frontier

Mar 18

DTW11:54 amDetroit Metropolitan Wayne County

25h 26m

1 stop

BOI11:20 amBoise Air Term. Gowen Fld

Mar 22

BOI12:15 pmBoise Air Term. Gowen Fld

20h 44m

1 stop

DTW10:59 amDetroit Metropolitan Wayne County

$231

Frontier

Apr 29

DTW5:09 pmDetroit Metropolitan Wayne County

19h 59m

2 stops

BOI11:08 amBoise Air Term. Gowen Fld

May 7

BOI11:53 amBoise Air Term. Gowen Fld

21h 05m

1 stop

DTW10:58 amDetroit Metropolitan Wayne County

$232

Fly from

Fly to

Route

Depart

Return

Price

DetroitBoise

DTW - BOI

DTWBOI

Detroit Metropolitan Wayne County

Wed 3/18

11:54 am-11:20 am

1 stop25h 26m

Boise Air Term. Gowen Fld

Sun 3/22

12:15 pm-10:59 am

1 stop20h 44m

$221

DetroitBoise

DTW - BOI

DTWBOI

Detroit Metropolitan Wayne County

Wed 3/18

11:54 am-11:20 am

1 stop25h 26m

Boise Air Term. Gowen Fld

Sun 3/22

12:15 pm-10:59 am

1 stop20h 44m

$231

DetroitBoise

DTW - BOI

DTWBOI

Detroit Metropolitan Wayne County

Wed 3/18

11:54 am-11:20 am

1 stop25h 26m

Boise Air Term. Gowen Fld

Mon 3/23

6:03 pm-10:59 am

2 stops38h 56m

$256

DetroitBoise

DTW - BOI

DTWBOI

Detroit Metropolitan Wayne County

Wed 4/29

7:09 am-11:59 pm

1 stop18h 50m

Boise Air Term. Gowen Fld

Mon 5/4

6:00 am-5:44 am

1 stop21h 44m

$263

DetroitSpokane

DTW - GEG

DTWGEG

Detroit Metropolitan Wayne County

Wed 4/22

5:14 pm-9:31 pm

1 stop7h 17m

Spokane

Sun 4/26

6:00 am-5:44 am

1 stop20h 44m

$273

DetroitSpokane

DTW - GEG

DTWGEG

Detroit Metropolitan Wayne County

Wed 3/11

7:00 am-1:10 pm

1 stop9h 10m

Spokane

Wed 3/18

1:50 pm-11:59 pm

1 stop7h 09m

$277

DetroitSpokane

DTW - GEG

DTWGEG

Detroit Metropolitan Wayne County

Wed 3/11

10:28 am-9:18 pm

2 stops13h 50m

Spokane

Tue 3/17

5:00 am-2:28 pm

1 stop6h 28m

$282

DetroitIdaho Falls

DTW - IDA

DTWIDA

Detroit Metropolitan Wayne County

Tue 7/28

8:00 am-1:24 pm

1 stop7h 24m

Idaho Falls Fanning Field

Tue 8/4

2:31 pm-10:41 pm

1 stop6h 10m

$321

DetroitSpokane

DTW - GEG

DTWGEG

Detroit Metropolitan Wayne County

Wed 4/8

7:00 am-1:10 pm

1 stop9h 10m

Spokane

Mon 4/27

7:38 pm-6:30 am

1 stop7h 52m

$322

DetroitIdaho Falls

DTW - IDA

DTWIDA

Detroit Metropolitan Wayne County

Fri 4/10

7:45 am-3:27 pm

1 stop9h 42m

Idaho Falls Fanning Field

Mon 4/13

10:21 pm-4:35 am

1 stop28h 14m

$336

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 Detroit 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, August is the cheapest month to fly from Detroit to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $218. If you don’t want to visit Idaho in August, then you should wait until September to fly from Detroit, when ticket prices are also cheap, with an average price of $286.

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

You are more likely to see cheaper flights to Idaho from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $461 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Detroit for as low as $316 on momondo.

Can stopping save me money on Detroit to Idaho flights?

You could potentially save up to 7% on your flight if you consider stops on a Detroit to Idaho flight.

Cheap Detroit to Idaho flight deals and tips

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

Fastest flight time	5h 39m
Direct flights	None

The fastest flight from Detroit to Idaho takes 5h 39m

There are no direct flights from Detroit to Idaho. There are no popular flight routes from Detroit to Idaho.

Search flight deals

When did momondo last update prices for flights from Detroit to Idaho?
Prices for flights from Detroit to Idaho were last updated today.
How many operators does momondo search for flights from Detroit to Idaho?
There are 5 operators available for flights from Detroit to Idaho as of February 2026.
How old do you have to be to fly from Detroit to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit 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 Detroit to Idaho

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $126	Free Cancellation	Rating 5.7 3,048 reviews	Search Frontier flights
Delta	PriceFrom $174	Free Cancellation	Rating 7.9 8,208 reviews	Search Delta flights
United Airlines	PriceFrom $240	Free Cancellation	Rating 7.4 9,312 reviews	Search United Airlines flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.2 11,304 reviews	Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Detroit to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

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

Yes. momondo enables you to select and highlight flights to Idaho from Detroit with this policy.

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

Once all potential Detroit 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 Detroit to Idaho right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Idaho from Detroit. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.