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Idaho

$78+ Cheap flights from Chicago (CHI) 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Chicago to Idaho

Keep the following information in mind while searching for Chicago to Idaho flight deals. Data was last updated April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$193
(Delta)

One-way from

$78
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$372

Good round-trip deal

$283 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for Chicago (CHI)-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Boise Air Term. Gowen Fld flights.
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From Chicago (CHI) to Idaho
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One-way flight from Chicago (CHI) to Idaho
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Highest demand for flights based on searches. 10% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Idaho.
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Price to beat on a one-way flight from Chicago (CHI) to Idaho.
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Find flight deals from Chicago to Idaho

Cheapest flights from Chicago to Idaho
Explore the most affordable flight options available from Chicago to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 4/23. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/135:55 pmORD - GEG
1 stop7h 01mHawaiian Airlines
Tue 8/197:44 pmGEG - ORD
1 stop7h 56mHawaiian Airlines
Deal found 4/23$194
This Delta deal was found by Cheapflights users on 4/23. 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 6/77:30 amORD - GEG
1 stop6h 31mDelta
Sat 6/146:50 amGEG - ORD
1 stop6h 13mDelta
Deal found 4/23$195
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 6/39:20 amMDW - GEG
1 stop5h 26mDelta
Sat 6/216:50 amGEG - MDW
1 stop8h 22mDelta
Deal found 4/23$195
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 5/237:15 pmORD - BOI
1 stop6h 08mDelta
Wed 5/2810:46 amBOI - ORD
2 stops9h 54mDelta
Deal found 4/22$202
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 5/69:00 amORD - BOI
1 stop8h 55mAlaska Airlines
Tue 5/132:41 pmBOI - ORD
1 stop8h 18mAlaska Airlines
Deal found 4/22$210
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/67:00 pmMDW - BOI
1 stop6h 03mDelta
Tue 5/135:35 amBOI - MDW
1 stop6h 40mDelta
Deal found 4/22$211
This Frontier deal was found by Cheapflights users on 4/22. 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 5/226:00 amORD - BOI
1 stop6h 51mFrontier
Thu 5/2912:36 pmBOI - ORD
1 stop10h 16mFrontier
Deal found 4/22$218
This Frontier deal was found by Cheapflights users on 4/23. 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 5/226:00 amORD - GEG
1 stop7h 04mFrontier
Thu 5/2911:49 amGEG - ORD
1 stop10h 03mFrontier
Deal found 4/23$218
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/216:00 amORD - GEG
1 stop8h 45mAlaska Airlines
Wed 5/2811:33 amGEG - ORD
1 stop8h 50mAlaska Airlines
Deal found 4/22$224
This Southwest deal was found by Cheapflights users on 4/23. 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.
Sat 9/131:35 pmMDW - GEG
1 stop9h 05mSouthwest
Thu 9/187:30 amGEG - MDW
1 stop8h 30mSouthwest
Deal found 4/23$227
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sun 6/17:10 amORD - BOI
1 stop9h 49mUnited Airlines
Tue 8/1212:39 pmBOI - ORD
Nonstop3h 26mUnited Airlines
Deal found 4/21$228
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1310:45 amORD - GEG
Nonstop3h 50mAmerican Airlines
Tue 8/191:39 pmGEG - ORD
Nonstop3h 41mAmerican Airlines
Deal found 4/23$235

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 April 24, 2025.
Use the filters below to find and compare flights from Chicago to Idaho that are best for you.

Fly from

Chicago

Fly to

Idaho

Route

Depart

Return

Price

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Sat 6/7

7:30 am-12:01 pm

1 stop6h 31m

Spokane

Sat 6/14

6:50 am-3:03 pm

1 stop6h 13m

$195

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Tue 6/3

9:20 am-12:46 pm

1 stop5h 26m

Spokane

Sat 6/21

6:50 am-5:12 pm

1 stop8h 22m

$195

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Fri 5/23

7:15 pm-12:23 am

1 stop6h 08m

Boise Air Term. Gowen Fld

Wed 5/28

10:46 am-9:40 pm

2 stops9h 54m

$202

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 5/6

9:00 am-4:55 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Tue 5/13

2:41 pm-11:59 pm

1 stop8h 18m

$210

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Tue 5/6

7:00 pm-12:03 am

1 stop6h 03m

Boise Air Term. Gowen Fld

Tue 5/13

5:35 am-1:15 pm

1 stop6h 40m

$211

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 5/22

6:00 am-11:51 am

1 stop6h 51m

Boise Air Term. Gowen Fld

Thu 5/29

12:36 pm-11:52 pm

1 stop10h 16m

$218

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Thu 5/22

6:00 am-11:04 am

1 stop7h 04m

Spokane

Thu 5/29

11:49 am-11:52 pm

1 stop10h 03m

$218

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 5/21

6:00 am-12:45 pm

1 stop8h 45m

Spokane

Wed 5/28

11:33 am-10:23 pm

1 stop8h 50m

$224

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Sat 9/13

1:35 pm-8:40 pm

1 stop9h 05m

Spokane

Thu 9/18

7:30 am-6:00 pm

1 stop8h 30m

$227

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sun 6/1

7:10 am-3:59 pm

1 stop9h 49m

Boise Air Term. Gowen Fld

Tue 8/12

12:39 pm-5:05 pm

Nonstop3h 26m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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

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

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

Currently, October is the cheapest month in which you can book a flight from Chicago to Idaho (average of $314). Flying from Chicago to Idaho in June is currently the most expensive (average of $419). 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 CHI to ID?

Find hourly flight availability from Chicago 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 April 24, 2025.

When flying from Chicago 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 Chicago to Idaho

Explore weekly flight availability from Chicago 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 April 24, 2025.

The most flights from CHI to USID are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 April 24, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Chicago to Idaho have to say. 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
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago to Idaho one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $78. Users have also found prices from $88 and $88 on Delta and Southwest, respectively.

  • What are the most popular routes from Chicago to Idaho?

    The most popular flight routes from Chicago to Idaho are Chicago O'Hare Intl - Jackson Hole, Chicago O'Hare Intl - Boise Air Term. Gowen Fld and Chicago O'Hare Intl - Spokane.

  • What are the most reliable airlines from Chicago to Idaho?

    The top 3 most reliable airlines when flying from Chicago to Idaho are SkyWest Airlines (82%), United Airlines (82%) and Air Canada (82%).

  • What are the cheapest flights from Chicago to Idaho?

    Looking at all options, your cheapest flight can be booked for $124. While the most popular route (Chicago O'Hare Intl - Jackson Hole) can be booked for $240 on average our data indicates $318 when flying from Chicago to Idaho.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Chicago to Idaho (average of $314). Flying from Chicago to Idaho in June is currently the most expensive (average of $419). 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 Chicago to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Chicago to Idaho

Discover the top 6 airlines that operate flights from Chicago 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$231FlexibilityNo cancel feeOn-time65%
DeltaCheapest$174Average$363FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$204Average$338FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$353FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$258Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$290Average$595FlexibilityNo cancel feeOn-time69%

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