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Idaho

$58+ Cheap flights from Salt Lake City (SLC) 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — BOI
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Salt Lake City to Idaho

Keep the following information in mind while searching for Salt Lake City to Idaho flight deals. Data was last updated August 16, 2025.

Round-trip from

$123
(Cheapflightsfares)

One-way from

$58
(Cheapflightsfares)

Popular in

September

Cheapest in

October

Average price

$393

Good round-trip deal

$279 or less

Good one-way deal

$308 or less
From Salt Lake City to Idaho
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One-way flight from Salt Lake City to Idaho
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Highest demand for flights based on searches. 0% potential increase in price ($2 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 August 2025
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Price to beat on a round-trip flight from Salt Lake City to Idaho.
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Price to beat on a one-way flight from Salt Lake City to Idaho.
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Find flight deals from Salt Lake City to Idaho

Cheapest flights from Salt Lake City to Idaho
Explore the most affordable flight options available from Salt Lake City to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:29 amSLC - BOI
1 stop11h 02mSpirit Airlines
Fri 9/199:26 pmBOI - SLC
1 stop11h 08mSpirit Airlines
Deal found 8/15$123
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:29 amSLC - BOI
1 stop11h 02mSpirit Airlines
Mon 9/159:26 pmBOI - SLC
1 stop11h 08mSpirit Airlines
Deal found 8/15$133
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:35 pmSLC - BOI
1 stop24h 56mSpirit Airlines
Sun 9/212:16 pmBOI - SLC
1 stop18h 18mSpirit Airlines
Deal found 8/15$144
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:29 amSLC - BOI
1 stop27h 52mSpirit Airlines
Sun 9/142:16 pmBOI - SLC
1 stop18h 18mSpirit Airlines
Deal found 8/15$145
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:35 pmSLC - BOI
1 stop24h 56mSpirit Airlines
Mon 9/159:26 pmBOI - SLC
1 stop11h 08mSpirit Airlines
Deal found 8/15$149
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/69:29 amSLC - BOI
1 stop27h 52mSpirit Airlines
Sat 9/132:16 pmBOI - SLC
1 stop18h 18mSpirit Airlines
Deal found 8/15$151
This Orbitz deal was found by Cheapflights users on 8/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:45 amSLC - GEG
1 stop5h 13mFrontier
Thu 9/1811:53 amGEG - SLC
1 stop11h 21mFrontier
Deal found 8/14$164
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:30 amSLC - BOI
1 stop5h 13mFrontier
Sun 10/1912:28 pmBOI - SLC
1 stop11h 31mFrontier
Deal found 8/15$165
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:45 amSLC - GEG
1 stop5h 13mFrontier
Sun 9/2811:53 amGEG - SLC
1 stop18h 39mFrontier
Deal found 8/15$166
This FlightHub deal was found by Cheapflights users on 8/13. 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 10/158:32 amSLC - GEG
1 stop27h 36mFrontier
Sun 10/2612:03 pmGEG - SLC
1 stop18h 29mFrontier
Deal found 8/13$172
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:35 amSLC - BOI
1 stop7h 15mSouthwest
Wed 9/105:25 pmBOI - SLC
1 stop5h 55mSouthwest
Deal found 8/14$175
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:45 amSLC - BOI
1 stop26h 52mMultiple Airlines
Mon 9/159:26 pmBOI - SLC
1 stop11h 08mMultiple Airlines
Deal found 8/15$188

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City 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 August 16, 2025.
Use the filters below to find and compare flights from Salt Lake City to Idaho that are best for you.

Fly from

Salt Lake City

Fly to

Idaho

Route

Depart

Return

Price

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 9/12

9:29 am-8:31 pm

1 stop11h 02m

Boise Air Term. Gowen Fld

Fri 9/19

9:26 pm-8:34 am

1 stop11h 08m

$123

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 9/12

9:29 am-8:31 pm

1 stop11h 02m

Boise Air Term. Gowen Fld

Mon 9/15

9:26 pm-8:34 am

1 stop11h 08m

$124

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 9/12

9:29 am-8:31 pm

1 stop11h 02m

Boise Air Term. Gowen Fld

Sun 9/14

2:16 pm-8:34 am

1 stop18h 18m

$133

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Fri 9/12

9:29 am-8:31 pm

1 stop11h 02m

Boise Air Term. Gowen Fld

Sat 9/13

2:16 pm-8:34 am

1 stop18h 18m

$133

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Thu 9/18

7:35 pm-8:31 pm

1 stop24h 56m

Boise Air Term. Gowen Fld

Sun 9/21

2:16 pm-8:34 am

1 stop18h 18m

$144

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 9/10

9:29 am-1:21 pm

1 stop27h 52m

Boise Air Term. Gowen Fld

Mon 9/15

9:26 pm-8:34 am

1 stop11h 08m

$145

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 9/10

9:29 am-1:21 pm

1 stop27h 52m

Boise Air Term. Gowen Fld

Fri 9/12

9:26 pm-8:34 am

1 stop11h 08m

$145

Salt Lake CityBoise

SLC - BOI

SLCBOI

Salt Lake City

Wed 9/10

9:29 am-1:21 pm

1 stop27h 52m

Boise Air Term. Gowen Fld

Sat 9/13

2:16 pm-8:34 am

1 stop18h 18m

$145

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Thu 9/11

6:45 am-10:58 am

1 stop5h 13m

Spokane

Thu 9/18

11:53 am-12:14 am

1 stop11h 21m

$164

Salt Lake CitySpokane

SLC - GEG

SLCGEG

Salt Lake City

Thu 9/25

6:45 am-10:58 am

1 stop5h 13m

Spokane

Sun 9/28

11:53 am-7:32 am

1 stop18h 39m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results
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Best time to book a flight from Salt Lake City to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Salt Lake City 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 Salt Lake City to Idaho

What is the cheapest month to book a flight from Salt Lake City to Idaho?

Currently, October is the cheapest month in which you can book a flight from Salt Lake City to Idaho (average of $314). Flying from Salt Lake City to Idaho in June is currently the most expensive (average of $399). 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 SLC to ID?

Find hourly flight availability from Salt Lake City 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 August 16, 2025.

When flying from Salt Lake City to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Salt Lake City to Idaho

Explore weekly flight availability from Salt Lake City 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 August 16, 2025.

The most flights from SLC to USID are scheduled on a Wednesday (14 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 August 16, 2025.
See what other customers who have flown with Delta and Spirit Airlines from Salt Lake City to Idaho have to say. 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.
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7,985 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
8,042 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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 Salt Lake City to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Salt Lake City to Idaho?

    For a flight from Salt Lake City to Idaho, you will be flying from Salt Lake City. Salt Lake City (SLC) is just 5.7 mi from the center of the city.

  • What are the cheapest airlines to fly from Salt Lake City to Idaho one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $58. Frontier flights start at $77 while deals on Delta start at $143 one-way.

  • What are the most popular routes from Salt Lake City to Idaho?

    While some choose either Salt Lake City - Boise Air Term. Gowen Fld or Salt Lake City - Lewiston Nez Perce Rgnl, Salt Lake City - Spokane is the most popular route from Salt Lake City to Idaho.

  • What are the most reliable airlines from Salt Lake City to Idaho?

    Before booking your flight to Idaho from Salt Lake City, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (100%), WestJet (100%), Korean Air( 97%).

  • What are the cheapest flights from Salt Lake City to Idaho?

    Looking at all options, your cheapest flight can be booked for $248. While the most popular route (Salt Lake City - Spokane) can be booked for $178 on average our data indicates $389 when flying from Salt Lake City to Idaho.

  • Can I find deals for flights from Salt Lake City to Idaho that include hotel bookings?

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

  • How can I find direct flights from Salt Lake City to Idaho?

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

  • Can I find deals for business class flights from Salt Lake City to Idaho?

    Yes. Cheapflights offers flight deals from Salt Lake City 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 Salt Lake City to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Salt Lake City to Idaho (average of $314). Flying from Salt Lake City to Idaho in June is currently the most expensive (average of $399). 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.

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Alternative routes for Salt Lake City to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Salt Lake City to Idaho

Discover the top 2 airlines that operate flights from Salt Lake City 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$154Average$280FlexibilityNo cancel feeOn-time65%
DeltaCheapest$173Average$392FlexibilityNo cancel feeOn-timeN/A

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