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Idaho

$58+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — BOI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$144
(Mytrip)

One-way from

$58
(Cheapflightsfares)

Popular in

July

Cheapest in

October

Average price

$489

Good round-trip deal

$289 or less

Good one-way deal

$298 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. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:29 amSLC - BOI
1 stop11h 02mSpirit Airlines
Mon 9/229:26 pmBOI - SLC
1 stop11h 08mSpirit Airlines
Deal found 7/30$144
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:34 pmSLC - GEG
1 stop5h 42mMultiple Airlines
Sun 9/149:06 pmGEG - SLC
2 stops21h 44mMultiple Airlines
Deal found 7/29$175
This Frontier deal was found by Cheapflights users on 7/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:45 amSLC - BOI
1 stop4h 52mFrontier
Thu 9/2512:22 pmBOI - SLC
1 stop11h 52mFrontier
Deal found 7/31$198
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/62:05 pmSLC - GEG
1 stop21h 58mFrontier
Tue 8/1211:51 amGEG - SLC
1 stop10h 19mFrontier
Deal found 7/31$205
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:34 pmSLC - BOI
1 stop4h 47mMultiple Airlines
Mon 9/226:37 pmBOI - SLC
2 stops19h 52mMultiple Airlines
Deal found 7/30$213
This Delta deal was found by Cheapflights users on 7/31. 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 8/276:02 amSGU - BOI
1 stop3h 43mDelta
Sat 8/306:00 pmBOI - SGU
1 stop3h 50mDelta
Deal found 7/31$218
This Delta deal was found by Cheapflights users on 7/28. 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 10/169:40 amSLC - JAC
Nonstop1h 10mDelta
Mon 10/201:00 pmJAC - SLC
Nonstop1h 04mDelta
Deal found 7/28$219
This Delta deal was found by Cheapflights users on 7/31. 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 9/178:55 pmSLC - SUN
Nonstop1h 05mDelta
Sat 9/207:30 amSUN - SLC
Nonstop1h 06mDelta
Deal found 7/31$219
This Southwest deal was found by Cheapflights users on 7/31. 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.
Mon 9/87:15 pmSLC - BOI
1 stop3h 55mSouthwest
Tue 9/96:05 pmBOI - SLC
1 stop4h 05mSouthwest
Deal found 7/31$224
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/1311:30 amSGU - BOI
1 stop4h 25mUnited Airlines
Sun 8/175:42 pmBOI - SGU
1 stop5h 15mUnited Airlines
Deal found 7/29$228
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/143:02 pmSLC - IDA
3 stops27h 39mMultiple Airlines
Mon 8/187:31 pmIDA - SLC
2 stops18h 26mMultiple Airlines
Deal found 7/30$233
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 8/207:25 pmSLC - GEG
1 stop5h 34mAlaska Airlines
Sat 8/235:06 amGEG - SLC
1 stop3h 55mAlaska Airlines
Deal found 7/31$237

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 July 31, 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 9/19

9:29 am-8:31 pm

1 stop11h 02m

Boise Air Term. Gowen Fld

Mon 9/22

9:26 pm-8:34 am

1 stop11h 08m

$144

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Thu 9/11

3:34 pm-8:16 pm

1 stop5h 42m

Spokane

Sun 9/14

9:06 pm-7:50 pm

2 stops21h 44m

$175

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Thu 9/18

6:45 am-11:37 am

1 stop4h 52m

Boise Air Term. Gowen Fld

Thu 9/25

12:22 pm-12:14 am

1 stop11h 52m

$198

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Wed 8/6

2:05 pm-11:03 am

1 stop21h 58m

Spokane

Tue 8/12

11:51 am-11:10 pm

1 stop10h 19m

$205

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 9/19

3:34 pm-8:21 pm

1 stop4h 47m

Boise Air Term. Gowen Fld

Mon 9/22

6:37 pm-2:29 pm

2 stops19h 52m

$213

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 8/27

6:02 am-9:45 am

1 stop3h 43m

Boise Air Term. Gowen Fld

Sat 8/30

6:00 pm-9:50 pm

1 stop3h 50m

$218

Salt Lake CityJackson

SLC - JAC

SLCJAC

Salt Lake City

Thu 10/16

9:40 am-10:50 am

Nonstop1h 10m

Jackson Hole

Mon 10/20

1:00 pm-2:04 pm

Nonstop1h 04m

$219

Salt Lake CityHailey

SLC - SUN

SLCSUN

Salt Lake City

Wed 9/17

8:55 pm-10:00 pm

Nonstop1h 05m

Hailey Sun Valley-Friedman

Sat 9/20

7:30 am-8:36 am

Nonstop1h 06m

$219

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Mon 9/8

7:15 pm-11:10 pm

1 stop3h 55m

Boise Air Term. Gowen Fld

Tue 9/9

6:05 pm-10:10 pm

1 stop4h 05m

$224

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 8/13

11:30 am-3:55 pm

1 stop4h 25m

Boise Air Term. Gowen Fld

Sun 8/17

5:42 pm-10:57 pm

1 stop5h 15m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 31, 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 July 31, 2025.

The most flights from USUT to USID are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Utah to Idaho. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 ($58), Frontier ($97), and Southwest ($104).

  • 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$113Average$280FlexibilityNo cancel feeOn-time65%
DeltaCheapest$173Average$393FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$433FlexibilityNo cancel feeOn-time69%

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