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$66+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SLC
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$133
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$453

Good round-trip deal

$355 or less

Good one-way deal

$214 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Salt Lake City flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Salt Lake City flights.
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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. 10% potential increase in price ($43 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 January 2026
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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 January 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1311:56 am
BOI
-
SLC
1 stop27h 09m
Frontier
Sat 2/2110:21 pm
SLC
-
BOI
1 stop12h 50m
Frontier
Deal found 1/13$133
This Kiwi.com deal was found by Cheapflights users on 1/12. 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.
Mon 2/912:07 pm
BOI
-
SLC
1 stop24h 33m
Frontier
Wed 2/118:01 pm
SLC
-
BOI
1 stop15h 50m
Frontier
Deal found 1/12$157
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/212:07 pm
BOI
-
SLC
1 stop12h 07m
Frontier
Thu 2/56:31 pm
SLC
-
BOI
1 stop16h 41m
Frontier
Deal found 1/13$169
This Expedia deal was found by Cheapflights users on 1/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/112:03 pm
GEG
-
SLC
1 stop19h 41m
Frontier
Thu 2/56:20 am
SLC
-
GEG
1 stop5h 48m
Frontier
Deal found 1/12$170
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/153:11 pm
GEG
-
SLC
1 stop8h 03m
Frontier
Wed 2/188:01 pm
SLC
-
GEG
1 stop16h 26m
Frontier
Deal found 1/13$171
This Booking.com deal was found by Cheapflights users on 1/12. 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 1/2212:03 pm
GEG
-
SLC
1 stop19h 37m
Frontier
Sat 1/247:49 pm
SLC
-
GEG
1 stop16h 19m
Frontier
Deal found 1/12$173
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:41 pm
BOI
-
SLC
1 stop18h 20m
Multiple Airlines
Thu 2/263:05 pm
SLC
-
BOI
1 stop25h 42m
Multiple Airlines
Deal found 1/13$177
This Mytrip deal was found by Cheapflights users on 1/12. 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 2/1912:22 pm
GEG
-
SLC
1 stop19h 22m
Frontier
Sun 3/17:00 am
SLC
-
GEG
1 stop6h 14m
Frontier
Deal found 1/12$179
This Booking.com deal was found by Cheapflights users on 1/12. 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.
Sun 3/112:59 pm
GEG
-
SLC
1 stop18h 45m
Frontier
Sat 3/149:14 pm
SLC
-
GEG
1 stop14h 33m
Frontier
Deal found 1/12$181
This Delta deal was found by Cheapflights users on 1/12. 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 2/143:44 pm
TWF
-
SLC
Nonstop0h 56m
Delta
Tue 2/172:00 pm
SLC
-
TWF
Nonstop0h 59m
Delta
Deal found 1/12$189
This Expedia deal was found by Cheapflights users on 1/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:00 am
GEG
-
SLC
1 stop4h 20m
Multiple Airlines
Sun 2/227:00 am
SLC
-
GEG
1 stop8h 16m
Multiple Airlines
Deal found 1/12$207
This Expedia deal was found by Cheapflights users on 1/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:06 pm
GEG
-
SLC
1 stop15h 42m
Multiple Airlines
Sun 3/12:49 pm
SLC
-
GEG
1 stop5h 28m
Multiple Airlines
Deal found 1/12$210

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 January 14, 2026.
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

Sun 2/15

3:11 pm-12:14 am

1 stop8h 03m

Salt Lake City

Wed 2/18

8:01 pm-11:27 am

1 stop16h 26m

$171

Twin FallsSalt Lake City

TWF - SLC

TWFSLC

Twin Falls Joslin

Sat 2/14

3:44 pm-4:40 pm

Nonstop0h 56m

Salt Lake City

Tue 2/17

2:00 pm-2:59 pm

Nonstop0h 59m

$189

Twin FallsSalt Lake City

TWF - SLC

TWFSLC

Twin Falls Joslin

Tue 2/10

6:00 am-6:57 am

Nonstop0h 57m

Salt Lake City

Tue 2/17

2:00 pm-2:59 pm

Nonstop0h 59m

$219

Idaho FallsSalt Lake City

IDA - SLC

IDASLC

Idaho Falls Fanning Field

Sat 2/14

5:25 am-6:52 am

Nonstop1h 27m

Salt Lake City

Thu 2/19

9:15 pm-10:21 pm

Nonstop1h 06m

$219

SpokaneSalt Lake City

GEG - SLC

GEGSLC

Spokane

Fri 2/6

5:00 am-10:31 am

1 stop4h 31m

Salt Lake City

Sat 2/7

7:00 am-12:44 pm

1 stop6h 44m

$221

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Wed 2/4

1:55 pm-8:58 pm

1 stop7h 03m

Salt Lake City

Mon 2/9

7:00 am-11:01 pm

1 stop16h 01m

$225

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Fri 3/27

2:22 pm-10:12 am

1 stop19h 50m

Salt Lake City

Tue 3/31

6:00 am-10:57 pm

1 stop16h 57m

$225

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Mon 2/2

10:10 am-12:14 am

2 stops14h 04m

Salt Lake City

Thu 2/5

6:31 pm-11:12 am

1 stop16h 41m

$236

BoiseSaint George

BOI - SGU

BOISGU

Boise Air Term. Gowen Fld

Tue 2/3

10:15 am-4:05 pm

1 stop5h 50m

Saint George

Tue 2/17

5:13 am-10:12 am

1 stop4h 59m

$238

BoiseSalt Lake City

BOI - SLC

BOISLC

Boise Air Term. Gowen Fld

Sat 3/21

6:00 am-11:59 pm

1 stop17h 59m

Salt Lake City

Tue 3/24

4:08 pm-3:29 pm

1 stop23h 21m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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, April is the cheapest month in which you can book a flight from Idaho to Utah (average of $149). Flying from Idaho to Utah in May is currently the most expensive (average of $237). 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 January 14, 2026.

It’s typically best to fly out from Idaho to Utah in the evening. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Idaho to Utah?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Utah. Price data was last updated on January 10, 2026.

Travelers seeking maximum savings on their Idaho to Utah flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 14, 2026.

The most flights from USID to USUT are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 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 January 14, 2026.
Read through reviews of airlines operating flights from Idaho to Utah, such as Southwest, Alaska Airlines, 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.
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Alaska Airlines
7.9
Good
11,701 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,040 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,156 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 6 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 56m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. The distance between Idaho and Utah is about 174 mi. This flight may include one or multiple stops.

  • 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, April is the cheapest month in which you can book a flight from Idaho to Utah (average of $149). Flying from Idaho to Utah in May is currently the most expensive (average of $237). 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

Browse thousands of different options on Cheapflights for your next trip

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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 4 airlines flying from Idaho to Utah

Discover the top 4 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$138Average$347FlexibilityNo cancel feeOn-time75%
DeltaCheapest$149Average$350FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$414FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$223Average$278FlexibilityNo cancel feeOn-time69%

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