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$98+ Cheap flights from Idaho to Utah

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SLC
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Idaho to Utah

Keep the following information in mind while searching for Idaho to Utah flight deals. Data was last updated September 17, 2025.

Round-trip from

$143
(Priceline)

One-way from

$98
(Alaska Airlines)

Popular in

November

Cheapest in

October

Average price

$399

Good round-trip deal

$302 or less

Good one-way deal

$177 or less
From Idaho to Utah
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One-way flight from Idaho to Utah
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Idaho to Utah.
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Price to beat on a one-way flight from Idaho to Utah.
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Find flight deals from Idaho to Utah

Cheapest flights from Idaho to Utah
Explore the most affordable flight options available from Idaho to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Priceline deal was found by Cheapflights users on 9/15. 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 10/1612:28 pmBOI - SLC
1 stop4h 32mFrontier
Fri 10/246:30 amSLC - BOI
1 stop5h 13mFrontier
Deal found 9/15$143
This Priceline deal was found by Cheapflights users on 9/15. 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 10/2312:28 pmBOI - SLC
1 stop4h 31mFrontier
Sun 10/266:30 amSLC - BOI
1 stop5h 13mFrontier
Deal found 9/15$164
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:34 pmGEG - SLC
1 stop13h 36mAlaska Airlines
Wed 10/227:44 pmSLC - GEG
1 stop5h 43mAlaska Airlines
Deal found 9/16$185
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/612:33 pmBOI - SLC
1 stop11h 28mFrontier
Sat 11/88:15 amSLC - BOI
1 stop27h 33mFrontier
Deal found 9/17$195
This Delta deal was found by Cheapflights users on 9/15. 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 10/1611:12 amBOI - SLC
Nonstop1h 13mDelta
Fri 10/249:05 amSLC - BOI
Nonstop1h 12mDelta
Deal found 9/15$199
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:03 pmGEG - SLC
1 stop21h 10mFrontier
Thu 10/236:30 amSLC - GEG
1 stop5h 38mFrontier
Deal found 9/16$216
This Delta deal was found by Cheapflights users on 9/16. 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 10/185:25 amBOI - SLC
1 stop11h 15mDelta
Sun 10/199:05 amSLC - BOI
Nonstop1h 12mDelta
Deal found 9/16$228
This Delta deal was found by Cheapflights users on 9/17. 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 10/151:00 pmBOI - SLC
Nonstop1h 12mDelta
Fri 10/2410:47 pmSLC - BOI
Nonstop1h 12mDelta
Deal found 9/17$229
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:28 pmBOI - SLC
1 stop4h 32mFrontier
Fri 10/106:30 amSLC - BOI
1 stop5h 13mFrontier
Deal found 9/14$231
This Delta deal was found by Cheapflights users on 9/16. 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.
Sun 11/96:00 amGEG - SGU
1 stop3h 50mDelta
Tue 11/183:20 pmSGU - GEG
1 stop4h 13mDelta
Deal found 9/16$238
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:38 pmBOI - SLC
1 stop16h 32mAlaska Airlines
Sat 10/187:19 pmSLC - BOI
1 stop4h 38mAlaska Airlines
Deal found 9/16$238
This Delta deal was found by Cheapflights users on 9/17. 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 10/227:30 amJAC - SLC
Nonstop1h 10mDelta
Sat 10/258:30 pmSLC - JAC
Nonstop0h 59mDelta
Deal found 9/17$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Utah 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 17, 2025.
Use the filters below to find and compare flights from Idaho to Utah that are best for you.

Fly from

Idaho

Fly to

Utah

Route

Depart

Return

Price

SpokaneSalt Lake City

GEG - SLC

GEGSLC

Spokane

Thu 10/23

7:34 pm-10:10 am

1 stop13h 36m

Salt Lake City

Sat 10/25

7:44 pm-12:27 am

1 stop5h 43m

$185

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Fri 10/17

6:00 am-7:14 am

Nonstop1h 14m

Salt Lake City

Mon 10/20

9:05 am-10:17 am

Nonstop1h 12m

$199

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Sat 10/18

5:55 pm-7:11 pm

Nonstop1h 16m

Salt Lake City

Mon 10/20

10:47 pm-11:59 pm

Nonstop1h 12m

$199

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Thu 10/16

11:12 am-12:25 pm

Nonstop1h 13m

Salt Lake City

Mon 10/20

10:47 pm-11:59 pm

Nonstop1h 12m

$199

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Wed 11/12

12:58 pm-2:10 pm

Nonstop1h 12m

Salt Lake City

Sun 11/16

9:00 am-10:18 am

Nonstop1h 18m

$199

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Thu 10/16

1:00 pm-2:12 pm

Nonstop1h 12m

Salt Lake City

Fri 10/24

9:05 am-10:17 am

Nonstop1h 12m

$199

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Wed 10/15

11:12 am-12:25 pm

Nonstop1h 13m

Salt Lake City

Fri 10/24

10:47 pm-11:59 pm

Nonstop1h 12m

$199

BoiseSaint George

BOI - SGU

BOISGU

Boise Air Term. Gowen Fld

Sat 3/7

5:45 pm-10:05 pm

1 stop4h 20m

Saint George

Wed 3/11

1:10 pm-4:53 pm

1 stop3h 43m

$218

HaileySaint George

SUN - SGU

SUNSGU

Hailey Sun Valley-Friedman

Fri 3/6

1:15 pm-6:35 pm

1 stop5h 20m

Saint George

Tue 3/10

11:27 am-2:52 pm

1 stop3h 25m

$218

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Mon 10/13

11:12 am-12:25 pm

Nonstop1h 13m

Salt Lake City

Mon 10/20

10:47 pm-11:59 pm

Nonstop1h 12m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

Have a flexible travel schedule? Discover the best time to fly to Utah from Idaho 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 Idaho to Utah

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

Currently, October is the cheapest month in which you can book a flight from Idaho to Utah (average of $277). Flying from Idaho to Utah in March is currently the most expensive (average of $417). 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 ID to UT?

Find hourly flight availability from Idaho to Utah. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

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

Weekly flight availability from Idaho to Utah

Explore weekly flight availability from Idaho to Utah. 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 17, 2025.

The most flights from USID to USUT are scheduled on a Wednesday (13 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Utah

Get insights into the airlines that provide service to Utah. 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 Utah. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Idaho to Utah, such as Alaska Airlines, Southwest, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

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

  • How popular is this Idaho to Utah flight route?

    Flights from Idaho to Utah have been viewed 7 times in the past calendar month.

  • How long is the flight from Idaho to Utah?

    There are many flights that can get you from Idaho to Utah in 1h 14m. Fly via Alaska Airlines, Delta, or American Airlines to get the fastest option. The distance between Idaho and Utah is about 290 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Idaho to Utah are Frontier ($133), Alaska Airlines ($137), and United Airlines ($151).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Utah 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 Idaho to Utah?

    Currently, October is the cheapest month in which you can book a flight from Idaho to Utah (average of $277). Flying from Idaho to Utah in March is currently the most expensive (average of $417). 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 Idaho to Utah

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

Discover the top 3 airlines that operate flights from Idaho to Utah. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$347FlexibilityNo cancel feeOn-time75%
DeltaCheapest$189Average$363FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$432FlexibilityNo cancel feeOn-time63%

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