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

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Utah to Idaho

What airlines fly to Idaho?

Delta, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Idaho from Utah according to our data. Delta is the first choice among our users, with 93% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 3 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

How long is the flight from Utah to Idaho?

Flight times from Utah to Idaho vary, but if you’re flying out of Salt Lake City and flying into Boise (one of the most popular routes), then the duration is 1h 09m on average. Another popular route from Utah to Idaho is flying from Saint George to Boise, which will take roughly 3h 13m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Utah to Idaho on average per day?

As of September 2025, 42 flights take off from Utah and land in Idaho each day. The most common flight departure time for this route is 8:00PM, with 45% of daily flights taking off in the evening.

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

The number of flights available between Utah and Idaho is 299 per week as of September 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.

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

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

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

The number of operators available for flights from Utah to Idaho is 6 as of September 2025.

How old do you have to be to fly from Utah 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 Utah to Idaho.

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

The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$89 Cheap Flights from Utah to Idaho in 2025/26

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Find the cheapest flights from Utah to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:15 pm - 4:54 pmSLC-GEG

5h 39m1 stop

5:45 pm - 11:47 pmGEG-SLC

5h 02m1 stop

$184Hawaiian Airlines

Find Deal

Fri, Jan 30 - Mon, Feb 2

7:44 pm - 12:27 amSLC-GEG

5h 43m1 stop

12:34 pm - 6:35 pmGEG-SLC

5h 01m1 stop

$185Alaska Airlines

Find Deal

Mon, Oct 20 - Wed, Oct 22

9:05 am - 10:17 amSLC-BOI

1h 12mnonstop

8:55 am - 10:14 amBOI-SLC

1h 19mnonstop

$199Delta

Find Deal

Sat, Oct 18 - Sun, Oct 19

8:32 am - 11:43 amSLC-BOI

27h 11m1 stop

12:28 pm - 11:35 amBOI-SLC

23h 07m1 stop

$213Frontier

Find Deal

Wed, Oct 8 - Fri, Oct 10

9:05 am - 12:18 pmSGU-BOI

3h 13m1 stop

1:10 pm - 6:35 pmBOI-SGU

5h 25m1 stop

$218Delta

Find Deal

Tue, Mar 3 - Sat, Mar 7

8:32 am - 11:43 amSLC-BOI

27h 11m1 stop

12:28 pm - 7:32 amBOI-SLC

19h 04m1 stop

$230Frontier

Find Deal

Wed, Oct 22 - Sun, Oct 26

9:18 am - 8:18 pmSLC-GEG

12h 00m1 stop

9:08 pm - 8:33 amGEG-SLC

10h 25m1 stop

$236Multiple Airlines

Find Deal

Thu, Oct 9 - Sun, Oct 12

6:30 am - 11:08 amSLC-GEG

5h 38m1 stop

7:34 pm - 10:10 amGEG-SLC

13h 36m1 stop

$240Multiple Airlines

Find Deal

Sun, Oct 19 - Thu, Oct 23

5:18 am - 9:42 amSGU-BOI

4h 24m1 stop

5:00 am - 9:56 amBOI-SGU

4h 56m1 stop

$256United Airlines

Find Deal

Thu, Oct 2 - Mon, Oct 6

5:30 pm - 10:52 pmSGU-IDA

5h 22m1 stop

5:00 am - 10:07 amIDA-SGU

5h 07m1 stop

$278United Airlines

Find Deal

Fri, Nov 14 - Sun, Nov 16

Delta flights from Utah to Idaho

Our best Delta deals on Utah to Idaho flight tickets

Delta

Oct 18

SLC9:05 amSalt Lake City

1h 12m

BOI10:17 amBoise Air Term. Gowen Fld

Oct 19

BOI8:55 amBoise Air Term. Gowen Fld

1h 19m

SLC10:14 amSalt Lake City

$199

Find similar

Delta

Mar 3

SGU9:05 amSaint George

3h 13m

1 stop

BOI12:18 pmBoise Air Term. Gowen Fld

Mar 7

BOI1:10 pmBoise Air Term. Gowen Fld

5h 25m

1 stop

SGU6:35 pmSaint George

$218

Find similar

Delta

Oct 16

SLC10:47 pmSalt Lake City

1h 12m

BOI11:59 pmBoise Air Term. Gowen Fld

Oct 19

BOI6:00 amBoise Air Term. Gowen Fld

1h 14m

SLC7:14 amSalt Lake City

$229

Find similar

Frontier flights from Utah to Idaho

Our best Frontier deals on Utah to Idaho flight tickets

Frontier

Oct 8

SLC8:32 amSalt Lake City

27h 11m

1 stop

BOI11:43 amBoise Air Term. Gowen Fld

Oct 10

BOI12:28 pmBoise Air Term. Gowen Fld

23h 07m

1 stop

SLC11:35 amSalt Lake City

$213

Find similar

Frontier

Oct 22

SLC8:32 amSalt Lake City

27h 11m

1 stop

BOI11:43 amBoise Air Term. Gowen Fld

Oct 26

BOI12:28 pmBoise Air Term. Gowen Fld

19h 04m

1 stop

SLC7:32 amSalt Lake City

$230

Find similar

Frontier

Oct 2

SLC9:45 pmSalt Lake City

13h 52m

1 stop

BOI11:37 amBoise Air Term. Gowen Fld

Oct 5

BOI12:22 pmBoise Air Term. Gowen Fld

19h 10m

1 stop

SLC7:32 amSalt Lake City

$267

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Fri 1/30

12:15 pm-4:54 pm

1 stop5h 39m

Spokane

Mon 2/2

5:45 pm-11:47 pm

1 stop5h 02m

$184

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Mon 10/20

7:44 pm-12:27 am

1 stop5h 43m

Spokane

Wed 10/22

12:34 pm-6:35 pm

1 stop5h 01m

$185

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Sat 10/18

9:05 am-10:17 am

Nonstop1h 12m

Boise Air Term. Gowen Fld

Sun 10/19

8:55 am-10:14 am

Nonstop1h 19m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 10/8

8:32 am-11:43 am

1 stop27h 11m

Boise Air Term. Gowen Fld

Fri 10/10

12:28 pm-11:35 am

1 stop23h 07m

$213

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 3/3

9:05 am-12:18 pm

1 stop3h 13m

Boise Air Term. Gowen Fld

Sat 3/7

1:10 pm-6:35 pm

1 stop5h 25m

$218

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 10/22

8:32 am-11:43 am

1 stop27h 11m

Boise Air Term. Gowen Fld

Sun 10/26

12:28 pm-7:32 am

1 stop19h 04m

$230

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Thu 10/9

9:18 am-8:18 pm

1 stop12h 00m

Spokane

Sun 10/12

9:08 pm-8:33 am

1 stop10h 25m

$236

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Sun 10/19

6:30 am-11:08 am

1 stop5h 38m

Spokane

Thu 10/23

7:34 pm-10:10 am

1 stop13h 36m

$240

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Thu 10/2

5:18 am-9:42 am

1 stop4h 24m

Boise Air Term. Gowen Fld

Mon 10/6

5:00 am-9:56 am

1 stop4h 56m

$256

Saint GeorgeIdaho Falls

SGU - IDA

SGUIDA

Saint George

Fri 11/14

5:30 pm-10:52 pm

1 stop5h 22m

Idaho Falls Fanning Field

Sun 11/16

5:00 am-10:07 am

1 stop5h 07m

$278

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 Utah 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, October is the cheapest month to fly from Utah to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. If you don’t want to visit Idaho in October, then you should wait until May to fly from Utah, when ticket prices are also cheap, with an average price of $319.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Tuesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $319. On the other hand, Monday is the most expensive day to depart from Utah because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $467.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Utah to Idaho at noon for as low as $132. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $374 per ticket.

What is the cheapest Utah to Idaho flight route?

Fly from Salt Lake City to Twin Falls Joslin for the best Utah - Idaho flight prices

What cabin class options are available on Utah to Idaho flights?

There are 4 cabin classes available to choose from on Utah to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Utah to Idaho flights?

You could potentially save up to 52% on your flight if you consider stops on a Utah to Idaho flight.

Cheap Utah to Idaho flight deals and tips

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

Best Price Found	$208
Fastest flight time	0h 55m
Direct flights	Every day
Airports in Idaho	6 airports

The best one-way flight to Idaho from Utah in the past 72 hours is $208. The best round-trip flight deal from Utah to Idaho found on momondo in the last 72 hours is $269.

The fastest flight from Utah to Idaho takes 0h 55m

Direct flights go from Utah to Idaho every day.

There are 6 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Lewiston Nez Perce Rgnl (LWS), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI), Hailey Sun Valley-Friedman (SUN)

Search flight deals

When did momondo last update prices for flights from Utah to Idaho?
Prices for flights from Utah to Idaho were last updated today.
How many operators does momondo search for flights from Utah to Idaho?
The number of operators available for flights from Utah to Idaho is 6 as of September 2025.
How old do you have to be to fly from Utah 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 Utah to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Utah to Idaho?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Utah to Idaho is Embraer 175 (Enhanced Winglets) (32.26% of total bookings). The next most popular plane models are Airbus A220-100 (23.12%), Airbus A320-100/200 (13.44%), and Boeing 737-800 (12.37%).

Best airlines flying from Utah to Idaho

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $173	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Spirit Airlines	PriceFrom $174	Free Cancellation	Rating 6.3 8,030 reviews	Search Spirit Airlines flights
United Airlines	PriceFrom $223	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Utah to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho from Utah.

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

Yes. momondo can track prices for Utah to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Idaho trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Idaho

Popular cities in Idaho

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Flights to Orlandofrom $60

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Flights to Bostonfrom $73

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Flights to Seattlefrom $86

Cheap flights from Utah to Idaho from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Utah to Idaho departing on 11/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Utah to Idaho

Cheap round-trip flights

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Cheap last minute flights

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Delta flights from Utah to Idaho

Our best Delta deals on Utah to Idaho flight tickets

Frontier flights from Utah to Idaho

Our best Frontier deals on Utah to Idaho flight tickets

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How to get the cheapest flight ticket from Utah 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

What is the cheapest month to fly to Idaho?

What is the cheapest day to depart on your flight to Idaho?

What is the cheapest time of day to depart on your flight to Idaho?

What is the cheapest Utah to Idaho flight route?

Fly from Salt Lake City to Twin Falls Joslin for the best Utah - Idaho flight prices

What cabin class options are available on Utah to Idaho flights?

There are 4 cabin classes available to choose from on Utah to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Utah to Idaho flights?

You could potentially save up to 52% on your flight if you consider stops on a Utah to Idaho flight.

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

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Utah to Idaho

What airlines fly to Idaho?

How many flights depart from Utah to Idaho on average per day?

As of September 2025, 42 flights take off from Utah and land in Idaho each day. The most common flight departure time for this route is 8:00PM, with 45% of daily flights taking off in the evening.

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

The number of flights available between Utah and Idaho is 299 per week as of September 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.

How long is the flight from Utah to Idaho?

Cheap Utah to Idaho flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Idaho

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

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

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

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

What is the most popular plane model from Utah to Idaho?

Best airlines flying from Utah to Idaho

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

Why use momondo?

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

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

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

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

An easier way to manage your Idaho trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Idaho

Popular cities in Idaho

Popular flights according to clicks in the last 7 days on momondo