HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$88+ Cheap flights from Chicago (CHI) to Boise (BOI)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Boise Air Term. Gowen Fld are usually found in September or October, booked 71 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from Chicago to Boise

Cheapest flights from Chicago to Boise
Explore the most affordable flight options available from Chicago to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Delta deal was found by Cheapflights users on 12/10. 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 12/256:00 amORD - BOI
1 stop9h 49mDelta
Tue 1/65:40 amBOI - ORD
1 stop6h 42mDelta
Deal found 12/10$272
This Delta deal was found by Cheapflights users on 12/10. 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 12/256:00 amORD - BOI
1 stop9h 49mDelta
Mon 12/295:50 amBOI - ORD
1 stop5h 51mDelta
Deal found 12/10$302
This Delta deal was found by Cheapflights users on 12/8. 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 12/97:02 pmMDW - BOI
1 stop6h 07mDelta
Wed 12/172:04 pmBOI - MDW
1 stop8h 43mDelta
Deal found 12/8$363
This Southwest deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:00 pmMDW - BOI
1 stop6h 10mSouthwest
Mon 1/55:40 pmBOI - MDW
1 stop5h 25mSouthwest
Deal found 12/10$364
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/259:15 amORD - BOI
Nonstop4h 24mUnited Airlines
Tue 1/62:37 pmBOI - ORD
1 stop8h 22mUnited Airlines
Deal found 12/10$381
This American Airlines deal was found by Cheapflights users on 12/11. 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 12/175:00 amORD - BOI
1 stop9h 38mAmerican Airlines
Fri 12/267:32 amBOI - ORD
Nonstop3h 48mAmerican Airlines
Deal found 12/11$385
This Southwest deal was found by Cheapflights users on 12/10. 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.
Wed 12/108:20 pmMDW - BOI
2 stops14h 55mSouthwest
Wed 12/1712:55 pmBOI - MDW
1 stop9h 00mSouthwest
Deal found 12/10$392
This Southwest deal was found by Cheapflights users on 12/8. 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 12/98:20 amMDW - BOI
1 stop10h 30mSouthwest
Fri 12/124:50 pmBOI - MDW
1 stop6h 35mSouthwest
Deal found 12/8$395
This Expedia deal was found by Cheapflights users on 12/10. 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 12/103:35 pmORD - BOI
1 stop9h 15mMultiple Airlines
Fri 12/1212:44 pmBOI - ORD
1 stop10h 28mMultiple Airlines
Deal found 12/10$396
This Southwest deal was found by Cheapflights users on 12/10. 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.
Wed 12/311:45 pmORD - BOI
2 stops10h 25mSouthwest
Wed 1/76:05 amBOI - ORD
1 stop8h 20mSouthwest
Deal found 12/10$397
This Southwest deal was found by Cheapflights users on 12/10. 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.
Sun 12/142:15 pmORD - BOI
2 stops11h 20mSouthwest
Tue 12/166:10 amBOI - ORD
1 stop8h 15mSouthwest
Deal found 12/10$400
This Southwest deal was found by Cheapflights users on 12/10. 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.
Sun 12/214:20 pmMDW - BOI
1 stop10h 05mSouthwest
Mon 12/298:45 pmBOI - MDW
1 stop7h 20mSouthwest
Deal found 12/10$403

Find flight deals from Chicago to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$184
(Kiwi.com)

One-way from

$88
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$420

Good round-trip deal

$329 or less

Good one-way deal

$320 or less
Provider with most accurate pricing for Chicago (CHI)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Boise Air Term. Gowen Fld flights.
Search Deals
From Chicago (CHI) to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Boise 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 December 12, 2025.
Use the filters below to find and compare flights from Chicago to Boise that are best for you.

Fly from

Chicago

Fly to

Boise

Route

Depart

Return

Price

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 1/22

3:35 pm-11:01 pm

1 stop8h 26m

Boise Air Term. Gowen Fld

Sun 1/25

6:23 am-2:38 pm

1 stop7h 15m

$228

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sun 2/1

8:00 am-3:10 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

Sun 2/8

5:40 am-1:10 pm

1 stop6h 30m

$248

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 2/19

3:54 pm-11:59 pm

1 stop9h 05m

Boise Air Term. Gowen Fld

Mon 2/23

8:27 pm-2:11 pm

1 stop16h 44m

$248

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Mon 1/26

8:00 am-3:10 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

Mon 2/2

5:40 am-1:10 pm

1 stop6h 30m

$248

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Mon 1/26

10:43 am-1:53 pm

Nonstop4h 10m

Boise Air Term. Gowen Fld

Mon 2/2

3:18 pm-7:59 pm

Nonstop3h 41m

$249

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Sat 1/3

5:15 am-10:05 am

1 stop5h 50m

Boise Air Term. Gowen Fld

Wed 1/7

6:40 am-2:45 pm

1 stop7h 05m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Thu 1/22

1:49 pm-8:55 pm

1 stop8h 06m

Boise Air Term. Gowen Fld

Thu 1/29

5:20 am-1:09 pm

1 stop6h 49m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Mon 1/5

6:35 pm-12:35 am

1 stop7h 00m

Boise Air Term. Gowen Fld

Fri 1/16

4:30 pm-12:25 am

1 stop6h 55m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Mon 1/26

6:00 am-12:37 pm

1 stop7h 37m

Boise Air Term. Gowen Fld

Sun 2/1

5:20 am-1:06 pm

1 stop6h 46m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Tue 1/6

5:05 am-11:10 am

1 stop7h 05m

Boise Air Term. Gowen Fld

Sat 1/10

6:00 am-3:20 pm

1 stop8h 20m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 43 results
1
2
3
...
5

Compare providers for flights from Chicago to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Boise in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Boise flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Boise flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Boise flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise 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 Boise

How far ahead should I book a flight from Chicago to Boise?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Boise. Price data was last updated on December 5, 2025.

The price you pay for your flight from Chicago to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, July is the cheapest month in which you can book a flight from Chicago to Boise (average of $149). Flying from Chicago to Boise in December is currently the most expensive (average of $288). 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 BOI?

Find hourly flight availability from Chicago to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 28% on flights from Chicago to Boise by exploring options for tickets at noon.

Weekly flight availability from Chicago to Boise

Explore weekly flight availability from Chicago to Boise. 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 December 12, 2025.

The most flights from CHI to BOI are scheduled on a Wednesday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated December 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Chicago to Boise 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
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,253 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Boise. 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 into for flights to Boise from Chicago?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly into when you book flights from Chicago to Boise. 4 airlines have flights to Air Term. Gowen Fld from Chicago on a regular basis. Booking flights from Chicago to Boise Air Term. Gowen Fld should not be difficult; the airport handles an average of 5 inbound flights from Chicago per day.

  • How long is the flight from Chicago to Boise?

    Departing from Chicago to Boise will take you 4h 10m. The distance from Chicago to Boise is about 1432 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to Boise round-trip?

    Cheapflights users have booked flights from Chicago to Boise round-trip from $174. Other airlines that can offer you cheap pricing are American Airlines, from $237, and United Airlines, from $249. Delta is currently priced 53% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago to Boise one-way?

    The cheapest airlines for a one-way flight from Chicago to Boise are Delta ($87), Alaska Airlines ($113), and United Airlines ($134).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Boise on time: American Airlines (86%), Air Canada (81%), Envoy Air (76%).

  • What are the cheapest flights from Chicago to Boise?

    On average you can expect to pay $474 for a flight from Chicago to Boise. The cheapest flight overall is $249 while the most popular route, (Chicago O'Hare Intl - Boise Air Term. Gowen Fld) is currently priced at $259.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Chicago to Boise (average of $149). Flying from Chicago to Boise in December is currently the most expensive (average of $288). 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

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Boise

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Jackson flights
O'Hare Intl to Boise flights
O'Hare Intl to Spokane flights
Midway to Jackson flights
St. Louis to Jackson flights
Midway to Boise flights
O'Hare Intl to Hailey flights
Midway to Spokane flights
O'Hare Intl to Idaho Falls flights
St. Louis to Boise flights
Peoria to Spokane flights
St. Louis to Spokane flights
Evansville to Spokane flights
Midway to Idaho Falls flights
Midway to Hailey flights
Peoria to Boise flights
St. Louis to Idaho Falls flights
Peoria to Idaho Falls flights
O'Hare Intl to West Yellowstone flights
St. Louis to Lewiston flights
Bloomington to Boise flights
Peoria to Jackson flights
Moline to Jackson flights
Moline to Spokane flights
Bloomington to Spokane flights
Bloomington to Jackson flights
Evansville to Boise flights
Evansville to Jackson flights
O'Hare Intl to Lewiston flights
Moline to Idaho Falls flights
Bloomington to Lewiston flights
St. Louis to West Yellowstone flights
St. Louis to Pocatello flights
Bloomington to Idaho Falls flights
Springfield to Spokane flights
Midway to West Yellowstone flights
O'Hare Intl to Pocatello flights
Peoria to Pocatello flights
Springfield to Idaho Falls flights
Springfield to Jackson flights
Midway to Lewiston flights
Champaign to Boise flights
Midway to Twin Falls flights
O'Hare Intl to Twin Falls flights

Top 4 airlines flying from Chicago to Boise

Discover the top 4 airlines that operate flights from Chicago to Boise. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$372FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$435FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$254Average$339FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.