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$95+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Boise Air Term. Gowen Fld are usually found in September or August, booked 71 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap 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 September 16, 2025.

Round-trip from

$158
(Frontier)

One-way from

$95
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$326

Good round-trip deal

$295 or less

Good one-way deal

$147 or less
From Chicago (CHI) to Boise Air Term. Gowen Fld
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One-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 13% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
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Find 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 September 16, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amORD - BOI
1 stop6h 48mFrontier
Sun 11/212:33 pmBOI - ORD
1 stop10h 39mFrontier
Deal found 9/15$158
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:50 amORD - BOI
1 stop5h 53mFrontier
Sun 10/2612:28 pmBOI - ORD
1 stop10h 25mFrontier
Deal found 9/15$183
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:50 amORD - BOI
1 stop5h 53mFrontier
Sun 10/2612:28 pmBOI - ORD
1 stop10h 25mFrontier
Deal found 9/15$203
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:50 pmORD - BOI
1 stop8h 32mHawaiian Airlines
Tue 10/217:13 amBOI - ORD
1 stop10h 46mHawaiian Airlines
Deal found 9/14$214
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:41 amMDW - BOI
1 stop5h 23mDelta
Sat 11/155:35 amBOI - MDW
1 stop6h 32mDelta
Deal found 9/14$215
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:37 amORD - BOI
1 stop9h 29mDelta
Wed 10/225:25 amBOI - ORD
1 stop7h 05mDelta
Deal found 9/15$215
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:47 amORD - BOI
1 stop9h 18mDelta
Sat 11/1511:13 amBOI - ORD
2 stops9h 23mDelta
Deal found 9/14$220
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:50 pmORD - BOI
1 stop8h 32mAlaska Airlines
Sat 10/187:13 amBOI - ORD
1 stop15h 46mAlaska Airlines
Deal found 9/15$221
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 10/207:59 pmORD - BOI
1 stop16h 35mAlaska Airlines
Fri 10/247:13 amBOI - ORD
1 stop10h 46mAlaska Airlines
Deal found 9/16$228
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:25 pmORD - BOI
1 stop7h 55mHawaiian Airlines
Mon 11/38:50 pmBOI - ORD
1 stop8h 32mHawaiian Airlines
Deal found 9/14$234
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:05 pmORD - BOI
Nonstop3h 42mUnited Airlines
Wed 10/228:20 amBOI - ORD
Nonstop3h 39mUnited Airlines
Deal found 9/15$235
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:50 pmORD - BOI
1 stop8h 32mHawaiian Airlines
Mon 10/208:26 pmBOI - ORD
1 stop8h 58mHawaiian Airlines
Deal found 9/15$241

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 September 16, 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

Tue 3/3

7:45 am-4:20 pm

1 stop9h 35m

Boise Air Term. Gowen Fld

Wed 3/4

8:30 pm-5:04 am

1 stop7h 34m

$214

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 3/3

7:45 am-4:20 pm

1 stop9h 35m

Boise Air Term. Gowen Fld

Wed 3/4

8:30 pm-5:04 am

1 stop7h 34m

$214

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Wed 11/12

9:41 am-2:04 pm

1 stop5h 23m

Boise Air Term. Gowen Fld

Sat 11/15

12:58 pm-11:32 pm

2 stops9h 34m

$220

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 11/12

7:47 am-4:05 pm

1 stop9h 18m

Boise Air Term. Gowen Fld

Sat 11/15

11:13 am-9:36 pm

2 stops9h 23m

$220

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Fri 10/17

3:50 pm-11:22 pm

1 stop8h 32m

Boise Air Term. Gowen Fld

Tue 10/21

7:13 am-6:59 pm

1 stop10h 46m

$221

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Fri 11/7

2:54 pm-11:49 pm

1 stop9h 55m

Boise Air Term. Gowen Fld

Tue 11/11

5:54 am-1:09 pm

1 stop6h 15m

$221

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 10/29

2:54 pm-11:49 pm

1 stop9h 55m

Boise Air Term. Gowen Fld

Mon 11/3

8:50 pm-6:22 am

1 stop8h 32m

$221

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 10/14

3:50 pm-11:22 pm

1 stop8h 32m

Boise Air Term. Gowen Fld

Tue 10/21

7:13 am-6:59 pm

1 stop10h 46m

$221

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Fri 11/14

3:25 pm-11:54 pm

1 stop9h 29m

Boise Air Term. Gowen Fld

Sun 11/16

6:05 pm-6:22 am

1 stop11h 17m

$228

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Fri 10/24

3:50 pm-11:22 pm

1 stop8h 32m

Boise Air Term. Gowen Fld

Mon 10/27

8:50 pm-6:22 am

1 stop8h 32m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 37 results
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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 September 12, 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, October is the cheapest month in which you can book a flight from Chicago to Boise (average of $314). Flying from Chicago to Boise 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 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 September 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 51% 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 September 16, 2025.

The most flights from CHI to BOI are scheduled on a Monday (11 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Chicago to Boise?

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 September 16, 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 8 inbound flights from Chicago per day.

  • How long is the flight from Chicago to Boise?

    Departing from Chicago to Boise will take you 5h 23m. The distance from Chicago to Boise is about 1444 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 Southwest, from $239. Delta is currently priced 57% 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 Hawaiian Airlines ($107), Alaska Airlines ($107), and Delta ($108).

  • 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: Envoy Air (75%), American Airlines (75%), Air Canada (74%).

  • What are the cheapest flights from Chicago to Boise?

    On average you can expect to pay $262 for a flight from Chicago to Boise. The cheapest flight overall is $117 while the most popular route, (Chicago O'Hare Intl - Boise Air Term. Gowen Fld) is currently priced at $177.

  • 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, October is the cheapest month in which you can book a flight from Chicago to Boise (average of $314). Flying from Chicago to Boise 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

Traveling to a place near Boise?

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

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Alternative routes for Chicago to Boise

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$289FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$354FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$239Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$263Average$455FlexibilityNo cancel feeOn-time69%

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