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$74+ Cheap flights from Boise (BOI) to Chicago (CHI)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Chicago are usually found in January or February, booked 58 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Boise to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Chicago (CHI). 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 11, 2025.

Round-trip from

$241
(Kiwi.com)

One-way from

$74
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$352

Good round-trip deal

$351 or less

Good one-way deal

$187 or less
From Boise Air Term. Gowen Fld to Chicago (CHI)
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One-way flight from Boise Air Term. Gowen Fld to Chicago (CHI)
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Highest demand for flights based on searches. 5% potential increase in price ($20 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 September 2025
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Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to Chicago (CHI).
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Chicago (CHI).
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Find flight deals from Boise to Chicago

Cheapest flights from Boise to Chicago
Explore the most affordable flight options available from Boise to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/106:22 pmBOI - ORD
1 stop24h 20mMultiple Airlines
Thu 11/136:00 amORD - BOI
1 stop6h 43mMultiple Airlines
Deal found 9/9$241
This Hawaiian Airlines deal was found by Cheapflights users on 9/9. 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 10/87:13 amBOI - ORD
1 stop10h 46mHawaiian Airlines
Wed 10/156:00 amORD - BOI
1 stop8h 10mHawaiian Airlines
Deal found 9/9$242
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/53:10 pmBOI - ORD
Nonstop3h 30mUnited Airlines
Sat 11/18:45 amORD - BOI
Nonstop3h 54mUnited Airlines
Deal found 9/11$243
This Orbitz deal was found by Cheapflights users on 9/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/269:26 pmBOI - ORD
1 stop13h 25mMultiple Airlines
Mon 9/298:00 amORD - BOI
1 stop8h 00mMultiple Airlines
Deal found 9/11$244
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/285:54 amBOI - ORD
1 stop6h 15mAlaska Airlines
Sun 11/22:54 pmORD - BOI
1 stop9h 55mAlaska Airlines
Deal found 9/9$245
This Delta deal was found by Cheapflights users on 9/9. 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 10/2411:39 pmBOI - MDW
1 stop9h 01mDelta
Mon 10/279:20 amMDW - BOI
1 stop5h 42mDelta
Deal found 9/9$246
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/299:26 pmBOI - ORD
2 stops19h 48mMultiple Airlines
Fri 10/39:54 pmORD - BOI
1 stop16h 27mMultiple Airlines
Deal found 9/10$246
This Hawaiian Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 9/274:00 pmBOI - ORD
1 stop7h 04mHawaiian Airlines
Sat 10/46:00 amORD - BOI
1 stop9h 36mHawaiian Airlines
Deal found 9/9$248
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 10/82:44 pmBOI - ORD
1 stop7h 28mUnited Airlines
Fri 10/104:05 pmORD - BOI
Nonstop3h 42mUnited Airlines
Deal found 9/9$250
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:01 amBOI - ORD
1 stop11h 54mAlaska Airlines
Mon 11/108:59 pmORD - BOI
1 stop15h 34mAlaska Airlines
Deal found 9/11$251
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:26 pmBOI - ORD
Nonstop3h 48mAmerican Airlines
Sun 11/25:00 amORD - BOI
1 stop9h 46mAmerican Airlines
Deal found 9/10$252
This Southwest deal was found by Cheapflights users on 9/10. 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.
Thu 10/305:40 pmBOI - MDW
1 stop4h 50mSouthwest
Sun 11/25:15 amMDW - BOI
1 stop5h 45mSouthwest
Deal found 9/10$253

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Chicago 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 11, 2025.
Use the filters below to find and compare flights from Boise to Chicago that are best for you.

Fly from

Boise

Fly to

Chicago

Route

Depart

Return

Price

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 11/7

5:30 am-1:30 pm

1 stop7h 00m

Chicago O'Hare Intl

Wed 11/12

2:15 pm-11:10 pm

2 stops9h 55m

$243

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 10/28

5:54 am-1:09 pm

1 stop6h 15m

Chicago O'Hare Intl

Sun 11/2

2:54 pm-11:49 pm

1 stop9h 55m

$245

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 11/14

6:28 am-4:57 pm

1 stop9h 29m

Chicago O'Hare Intl

Mon 11/17

6:00 am-3:12 pm

1 stop10h 12m

$254

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 9/30

2:28 pm-10:07 pm

1 stop6h 39m

Chicago O'Hare Intl

Mon 10/6

7:59 pm-11:34 am

1 stop16h 35m

$254

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 11/4

5:42 am-1:08 pm

1 stop6h 26m

Chicago Midway

Wed 11/12

9:41 am-2:04 pm

1 stop5h 23m

$255

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 11/4

5:42 am-1:08 pm

1 stop6h 26m

Chicago Midway

Sat 11/8

7:10 pm-11:54 pm

1 stop5h 44m

$255

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 10/21

12:40 pm-10:40 pm

2 stops9h 00m

Chicago Midway

Thu 10/23

6:25 pm-12:20 am

1 stop6h 55m

$257

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Mon 9/29

6:00 am-1:11 pm

1 stop6h 11m

Chicago O'Hare Intl

Fri 10/3

3:20 pm-10:50 pm

1 stop8h 30m

$257

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sat 11/15

5:35 am-1:07 pm

1 stop6h 32m

Chicago Midway

Fri 11/21

7:02 pm-12:09 am

1 stop6h 07m

$258

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 3/3

11:45 am-8:38 pm

2 stops7h 53m

Chicago O'Hare Intl

Wed 3/4

2:20 pm-8:13 pm

1 stop6h 53m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 40 results
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Best time to book a flight from Boise to Chicago

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

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to Chicago. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Boise to Chicago, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Boise to Chicago (average of $245). Flying from Boise to Chicago in March is currently the most expensive (average of $321). 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 BOI to CHI?

Find hourly flight availability from Boise to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Boise to Chicago at noon. Doing so could potentially save you 44% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Boise to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Boise to Chicago. Price data was last updated on September 7, 2025.

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

Weekly flight availability from Boise to Chicago

Explore weekly flight availability from Boise to Chicago. 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 11, 2025.

The most flights from BOI to CHI are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Boise to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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 Boise to Chicago. 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 from for flights from Boise to Chicago?

    If you book a flight to Chicago from Boise, you will be flying from Air Term. Gowen Fld, which is the city’s only airport. Boise Air Term. Gowen Fld (BOI) is located 3.3 mi from the center of Boise. There are 10 flights from Air Term. Gowen Fld to Chicago per day from 5 different airlines.

  • How long is the flight from Boise to Chicago?

    Departing from Boise to Chicago will take you 6h 15m. The distance between Boise and Chicago is about 1432 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Boise to Chicago is Delta. Our recent data shows that you can find tickets from as low as $139 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $224 and $232 round-trip. Users have found that Delta is 63% cheaper than the other options available to this destination.

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

    No one likes to see their flight delayed. When booking a flight from Boise to Chicago consider choosing SkyWest Airlines (85%), Air Canada (76%) or United Airlines (76%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boise to Chicago?

    The cheapest flight price from Boise to Chicago is $134. On average you can expect to pay $693. The most popular route, (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), can usually be booked for $157.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boise to Chicago (average of $245). Flying from Boise to Chicago in March is currently the most expensive (average of $321). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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Alternative routes for Boise to Chicago

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Top 5 airlines flying from Boise to Chicago

Discover the top 5 airlines that operate flights from Boise to Chicago. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$274FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$224Average$327FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$232Average$491FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$233Average$378FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$247Average$390FlexibilityNo cancel feeOn-time71%

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