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Idaho

$65+ Cheap flights from Utah to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Utah to Idaho

Keep the following information in mind while searching for Utah to Idaho flight deals. Data was last updated September 11, 2025.

Round-trip from

$149
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$414

Good round-trip deal

$299 or less

Good one-way deal

$198 or less
From Utah to Idaho
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One-way flight from Utah to Idaho
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Highest demand for flights based on searches. 10% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Utah to Idaho.
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Price to beat on a one-way flight from Utah to Idaho.
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Find flight deals from Utah to Idaho

Cheapest flights from Utah to Idaho
Explore the most affordable flight options available from Utah to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:30 amSLC - BOI
1 stop5h 13mFrontier
Thu 10/3012:33 pmBOI - SLC
1 stop11h 28mFrontier
Deal found 9/10$149
This Priceline deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:30 amSLC - BOI
1 stop5h 13mFrontier
Thu 10/1612:28 pmBOI - SLC
1 stop4h 32mFrontier
Deal found 9/11$157
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:27 pmSLC - BOI
1 stop22h 54mMultiple Airlines
Sun 10/512:22 pmBOI - SLC
1 stop19h 10mMultiple Airlines
Deal found 9/11$176
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:30 amSLC - BOI
1 stop5h 13mFrontier
Sun 10/2612:28 pmBOI - SLC
1 stop19h 04mFrontier
Deal found 9/10$188
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:50 amSLC - BOI
Nonstop1h 25mDelta
Tue 1/61:10 pmBOI - SLC
Nonstop1h 20mDelta
Deal found 9/11$199
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:27 pmSLC - GEG
1 stop6h 51mMultiple Airlines
Sun 10/129:08 pmGEG - SLC
1 stop10h 25mMultiple Airlines
Deal found 9/8$206
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:30 pmSGU - IDA
1 stop5h 19mUnited Airlines
Mon 10/205:56 pmIDA - SGU
1 stop5h 00mUnited Airlines
Deal found 9/11$218
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:39 amSLC - BOI
Nonstop1h 09mDelta
Sat 10/1111:12 amBOI - SLC
Nonstop1h 13mDelta
Deal found 9/9$229
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:15 pmSLC - IDA
Nonstop1h 00mDelta
Wed 10/156:00 amIDA - SLC
Nonstop1h 03mDelta
Deal found 9/9$229
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:25 pmSLC - GEG
1 stop4h 35mSouthwest
Wed 11/1910:25 amGEG - SLC
1 stop5h 25mSouthwest
Deal found 9/10$234
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:10 pmSLC - GEG
1 stop5h 25mSouthwest
Tue 10/146:00 amGEG - SLC
1 stop5h 15mSouthwest
Deal found 9/9$239
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:30 pmSLC - JAC
Nonstop0h 59mDelta
Mon 10/277:30 amJAC - SLC
Nonstop1h 10mDelta
Deal found 9/11$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Utah to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Utah to Idaho that are best for you.

Fly from

Utah

Fly to

Idaho

Route

Depart

Return

Price

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 10/24

6:30 am-11:43 am

1 stop5h 13m

Boise Air Term. Gowen Fld

Sun 10/26

12:28 pm-7:32 am

1 stop19h 04m

$188

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 10/24

10:47 pm-11:59 pm

Nonstop1h 12m

Boise Air Term. Gowen Fld

Sun 10/26

8:55 am-10:14 am

Nonstop1h 19m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 2/20

8:59 am-10:24 am

Nonstop1h 25m

Boise Air Term. Gowen Fld

Tue 2/24

11:45 am-1:08 pm

Nonstop1h 23m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 11/12

11:15 pm-12:35 am

Nonstop1h 20m

Boise Air Term. Gowen Fld

Sat 11/15

8:45 am-10:14 am

Nonstop1h 29m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Sat 10/11

5:55 pm-7:07 pm

Nonstop1h 12m

Boise Air Term. Gowen Fld

Sun 10/12

6:00 am-7:14 am

Nonstop1h 14m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 11/14

11:15 pm-12:35 am

Nonstop1h 20m

Boise Air Term. Gowen Fld

Sun 11/16

5:55 am-7:14 am

Nonstop1h 19m

$199

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 10/17

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

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

Sat 10/4

3:30 pm-4:41 pm

Nonstop1h 11m

Boise Air Term. Gowen Fld

Sat 10/11

11:12 am-12:25 pm

Nonstop1h 13m

$229

Salt Lake CityIdaho Falls

SLC - IDA

SLCIDA

Salt Lake City

Wed 10/8

9:15 pm-10:15 pm

Nonstop1h 00m

Idaho Falls Fanning Field

Wed 10/15

6:00 am-7:03 am

Nonstop1h 03m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Utah to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Utah with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Utah to Idaho

What is the cheapest month to book a flight from Utah to Idaho?

Currently, October is the cheapest month in which you can book a flight from Utah to Idaho (average of $314). Flying from Utah to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from UT to ID?

Find hourly flight availability from Utah to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Utah to Idaho as you normally would.

Weekly flight availability from Utah to Idaho

Explore weekly flight availability from Utah to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from USUT to USID are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Spirit Airlines from Utah to Idaho. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,023 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Utah to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Utah to Idaho?

    For as low as $199, Frontier can have you in Idaho from Utah in 1h 12m. Utah and Idaho are separated by a distance of 290 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Utah to Idaho one-way?

    The cheapest airlines for a one-way flight from Utah to Idaho are Spirit Airlines ($81), Frontier ($82), and Southwest ($117).

  • Can I find deals for flights from Utah to Idaho that include hotel bookings?

    Yes. In addition to deals on Utah to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Utah to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Utah to Idaho.

  • Can I find deals for business class flights from Utah to Idaho?

    Yes. Cheapflights offers flight deals from Utah to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Utah to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Utah to Idaho (average of $314). Flying from Utah to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Utah to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Utah to Idaho

Discover the top 3 airlines that operate flights from Utah to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$168Average$280FlexibilityNo cancel feeOn-time65%
DeltaCheapest$173Average$393FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$360FlexibilityNo cancel feeOn-time69%

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