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$71+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Chicago are usually found in February or April, 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$292
(Southwest)

One-way from

$71
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$407

Good round-trip deal

$352 or less

Good one-way deal

$273 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Chicago (CHI) flights.
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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. 4% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 28, 2025.

This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmBOI - MDW
1 stop8h 30mSouthwest
Sat 1/38:00 pmMDW - BOI
1 stop6h 40mSouthwest
Deal found 10/28$292
This Delta deal was found by Cheapflights users on 10/27. 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 12/265:30 amBOI - ORD
1 stop5h 20mDelta
Sat 1/37:25 amORD - BOI
1 stop5h 37mDelta
Deal found 10/27$292
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 12/83:45 pmBOI - MDW
1 stop6h 10mSouthwest
Wed 12/1012:05 pmMDW - BOI
2 stops11h 10mSouthwest
Deal found 10/27$294
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 10/318:17 amBOI - ORD
Nonstop3h 49mUnited Airlines
Sat 11/18:45 amORD - BOI
Nonstop3h 54mUnited Airlines
Deal found 10/27$294
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 12/249:50 pmBOI - ORD
1 stop7h 39mAlaska Airlines
Fri 1/28:39 amORD - BOI
1 stop16h 20mAlaska Airlines
Deal found 10/27$295
This Frontier deal was found by Cheapflights users on 10/27. 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 12/1112:44 pmBOI - ORD
1 stop10h 28mFrontier
Thu 12/257:00 amORD - BOI
1 stop5h 43mFrontier
Deal found 10/27$296
This Frontier deal was found by Cheapflights users on 10/26. 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.
Fri 12/1212:44 pmBOI - ORD
1 stop10h 28mFrontier
Thu 12/257:00 amORD - BOI
1 stop5h 43mFrontier
Deal found 10/26$298
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 11/1611:35 pmBOI - MDW
1 stop9h 17mDelta
Sat 11/229:41 amMDW - BOI
1 stop5h 28mDelta
Deal found 10/27$299
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:40 pmBOI - ORD
Nonstop3h 47mAmerican Airlines
Sun 11/235:00 amORD - BOI
1 stop6h 37mAmerican Airlines
Deal found 10/28$299
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 12/81:57 pmBOI - ORD
Nonstop3h 43mAmerican Airlines
Wed 12/109:59 amORD - BOI
Nonstop4h 07mAmerican Airlines
Deal found 10/27$301
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 12/1212:44 pmBOI - ORD
1 stop10h 28mMultiple Airlines
Thu 12/2512:39 pmORD - BOI
2 stops27h 25mMultiple Airlines
Deal found 10/26$302
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 11/161:50 pmBOI - ORD
1 stop9h 09mDelta
Sat 11/228:50 amORD - BOI
2 stops11h 40mDelta
Deal found 10/27$304

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 October 28, 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 - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sat 12/13

11:45 am-8:10 pm

1 stop7h 25m

Chicago Midway

Thu 12/18

6:25 pm-12:35 am

2 stops7h 10m

$294

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 11/14

9:00 am-9:25 pm

2 stops11h 25m

Chicago O'Hare Intl

Sun 11/16

7:40 pm-12:35 am

1 stop5h 55m

$294

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 11/13

5:00 am-11:23 am

1 stop5h 23m

Chicago O'Hare Intl

Sun 11/16

8:45 am-11:39 am

Nonstop3h 54m

$299

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sun 11/16

5:35 am-1:07 pm

1 stop6h 32m

Chicago Midway

Sat 11/22

9:41 am-5:03 pm

2 stops8h 22m

$304

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 12/9

8:55 am-4:55 pm

1 stop7h 00m

Chicago O'Hare Intl

Wed 12/24

3:33 pm-11:37 pm

1 stop9h 04m

$305

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sat 12/6

5:00 am-4:30 pm

2 stops10h 30m

Chicago Midway

Fri 12/12

7:55 am-5:00 pm

2 stops10h 05m

$308

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sat 11/8

11:43 am-9:40 pm

1 stop8h 57m

Chicago O'Hare Intl

Sat 11/15

8:00 am-3:12 pm

1 stop8h 12m

$308

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Wed 11/19

11:43 am-9:40 pm

1 stop8h 57m

Chicago O'Hare Intl

Fri 11/21

8:20 am-11:44 pm

1 stop16h 24m

$308

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 4/24

8:30 pm-5:00 am

1 stop7h 30m

Chicago O'Hare Intl

Sun 4/26

7:00 am-2:27 pm

1 stop8h 27m

$308

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Mon 11/17

3:45 pm-10:55 pm

1 stop6h 10m

Chicago Midway

Wed 11/19

5:35 am-3:05 pm

2 stops10h 30m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 43 results
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Compare providers for flights from Boise to Chicago

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 Boise to Chicago in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Boise-Chicago flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Chicago flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Chicago 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 Boise-Chicago 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 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 October 24, 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, May is the cheapest month in which you can book a flight from Boise to Chicago (average of $87). Flying from Boise to Chicago in November is currently the most expensive (average of $274). 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 October 28, 2025.

It’s typically best to fly out from Boise to Chicago in the afternoon. Doing so could potentially save you 32% 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 October 26, 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. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 28, 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
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,203 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,240 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 5 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 5h 23m. 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 Southwest, starting at $217 and $233 round-trip. Users have found that Delta is 62% 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 (97%), Lufthansa (83%) or Emirates (77%) 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 $119. On average you can expect to pay $919. The most popular route, (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), can usually be booked for $191.

  • 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, May is the cheapest month in which you can book a flight from Boise to Chicago (average of $87). Flying from Boise to Chicago in November is currently the most expensive (average of $274). 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
Porter
Benton Harbor

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Alternative routes for Boise to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$276FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$217Average$353FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$233Average$393FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$233Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$255Average$389FlexibilityNo cancel feeOn-time71%

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