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$80+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$256
(Delta)

One-way from

$80
(Booking.com)

Popular in

November

Cheapest in

September

Average price

$423

Good round-trip deal

$275 or less

Good one-way deal

$187 or less
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. 13% potential increase in price ($62 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 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 julio 31, 2025.

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.
sáb. 8/162:25 pmORD - GEG
2 stops11h 21mDelta
sáb. 8/302:21 pmGEG - ORD
1 stop5h 14mDelta
Deal found 7/31$256
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.
mié. 8/207:45 amORD - WYS
1 stop8h 05mDelta
dom. 8/243:25 pmWYS - ORD
1 stop5h 39mDelta
Deal found 7/31$259
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/303:10 pmORD - GEG
1 stop8h 20mSouthwest
sáb. 9/65:30 amGEG - ORD
2 stops8h 55mSouthwest
Deal found 7/29$260
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/87:17 pmMDW - GEG
1 stop6h 31mDelta
lun. 9/297:25 pmGEG - MDW
2 stops11h 28mDelta
Deal found 7/30$260
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/316:00 amORD - GEG
1 stop7h 37mAmerican Airlines
mar. 9/91:30 pmGEG - ORD
Nonstop3h 48mAmerican Airlines
Deal found 7/31$261
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/36:20 amORD - GEG
2 stops10h 08mAlaska Airlines
mié. 9/37:44 pmGEG - ORD
1 stop9h 19mAlaska Airlines
Deal found 7/29$263
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/117:50 amORD - SUN
1 stop7h 53mDelta
sáb. 10/257:30 amSUN - ORD
1 stop5h 26mDelta
Deal found 7/30$265
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/303:20 pmMDW - GEG
2 stops8h 10mSouthwest
sáb. 9/65:30 amGEG - MDW
2 stops9h 05mSouthwest
Deal found 7/29$265
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/35:40 amORD - GEG
1 stop7h 23mFrontier
mar. 8/1211:51 amGEG - ORD
1 stop10h 41mFrontier
Deal found 7/30$268
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.
mar. 12/912:17 pmORD - BOI
2 stops8h 59mDelta
mié. 12/175:40 amBOI - ORD
1 stop8h 16mDelta
Deal found 7/28$270
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.
mié. 9/37:09 pmORD - GEG
2 stops27h 07mMultiple Airlines
dom. 9/79:06 pmGEG - ORD
1 stop17h 53mMultiple Airlines
Deal found 7/29$270
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/236:20 amORD - BOI
1 stop9h 40mAlaska Airlines
sáb. 8/306:59 pmBOI - ORD
2 stops11h 04mAlaska Airlines
Deal found 7/28$274

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 julio 31, 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

sáb. 8/16

2:25 pm-11:46 pm

2 stops11h 21m

Spokane

sáb. 8/30

2:21 pm-9:35 pm

1 stop5h 14m

$256

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

mié. 8/20

7:45 am-2:50 pm

1 stop8h 05m

West Yellowstone

dom. 8/24

3:25 pm-10:04 pm

1 stop5h 39m

$259

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

sáb. 8/30

3:10 pm-9:30 pm

1 stop8h 20m

Spokane

sáb. 9/6

5:30 am-4:25 pm

2 stops8h 55m

$260

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

lun. 9/8

7:17 pm-11:48 pm

1 stop6h 31m

Spokane

lun. 9/29

7:25 pm-8:53 am

2 stops11h 28m

$260

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

dom. 8/31

6:00 am-11:37 am

1 stop7h 37m

Spokane

mar. 9/9

1:30 pm-7:18 pm

Nonstop3h 48m

$261

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

mié. 9/3

6:20 am-2:28 pm

2 stops10h 08m

Spokane

mié. 9/3

7:44 pm-7:03 am

1 stop9h 19m

$263

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

lun. 9/8

5:40 pm-11:00 pm

1 stop7h 20m

Spokane

lun. 9/29

12:10 pm-5:35 pm

Nonstop3h 25m

$265

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

sáb. 10/11

7:50 am-2:43 pm

1 stop7h 53m

Hailey Sun Valley-Friedman

sáb. 10/25

7:30 am-1:56 pm

1 stop5h 26m

$265

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

mié. 9/3

7:09 pm-8:16 pm

2 stops27h 07m

Spokane

dom. 9/7

9:06 pm-4:59 pm

1 stop17h 53m

$270

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sáb. 8/23

6:20 am-3:00 pm

1 stop9h 40m

Boise Air Term. Gowen Fld

sáb. 8/30

6:59 pm-7:03 am

2 stops11h 04m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $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 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 julio 31, 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 julio 31, 2025.

The most flights from CHI to USID are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 julio 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Chicago to Idaho by reading reviews from past customers. 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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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 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 Spirit Airlines. According to our data, you can fly for as low as $80. Users have also found prices from $97 and $98 on Alaska Airlines and Delta, 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 American Airlines (90%), Envoy Air (90%) and United Airlines (81%).

  • What are the cheapest flights from Chicago to Idaho?

    Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Chicago O'Hare Intl - Jackson Hole) can be booked for $201 on average our data indicates $349 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 $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 Chicago to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Chicago to Idaho

Discover the top 5 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$389FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$227Average$337FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$369FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$254Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$561FlexibilityNo cancel feeOn-time69%

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