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$83+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Boise to Chicago with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Chicago are usually found in February or September, booked 58 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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 December 12, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:38 pmBOI - ORD
1 stop10h 34mFrontier
Thu 1/17:00 amORD - BOI
1 stop5h 43mFrontier
Deal found 12/11$232
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.
Wed 12/313:30 pmBOI - ORD
1 stop7h 29mDelta
Wed 1/77:30 amORD - BOI
1 stop9h 47mDelta
Deal found 12/10$269
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:23 pmBOI - ORD
1 stop5h 11mDelta
Fri 1/25:30 amORD - BOI
1 stop8h 15mDelta
Deal found 12/11$272
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:23 pmBOI - ORD
1 stop5h 11mDelta
Mon 1/51:35 pmORD - BOI
2 stops9h 23mDelta
Deal found 12/11$277
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:38 pmBOI - ORD
1 stop10h 34mFrontier
Sun 1/47:00 amORD - BOI
1 stop5h 43mFrontier
Deal found 12/11$292
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:23 pmBOI - ORD
1 stop5h 11mDelta
Thu 1/17:25 amORD - BOI
1 stop5h 37mDelta
Deal found 12/11$297
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:23 pmBOI - ORD
1 stop5h 11mDelta
Sat 1/36:35 amORD - BOI
1 stop8h 43mDelta
Deal found 12/11$327
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:40 amBOI - ORD
Nonstop3h 48mAmerican Airlines
Fri 1/28:04 pmORD - BOI
Nonstop3h 55mAmerican Airlines
Deal found 12/10$328
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:00 pmBOI - ORD
2 stops10h 02mDelta
Fri 1/25:30 amORD - BOI
1 stop8h 15mDelta
Deal found 12/11$329
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:20 pmBOI - ORD
Nonstop3h 44mUnited Airlines
Mon 1/57:42 pmORD - BOI
Nonstop4h 17mUnited Airlines
Deal found 12/11$332
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:00 pmBOI - ORD
2 stops10h 02mDelta
Mon 1/51:35 pmORD - BOI
2 stops9h 23mDelta
Deal found 12/11$334
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.
Tue 12/163:45 pmBOI - MDW
1 stop6h 10mSouthwest
Tue 12/235:00 amMDW - BOI
1 stop7h 05mSouthwest
Deal found 12/10$415

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$186
(Kiwi.com)

One-way from

$83
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$438

Good round-trip deal

$445 or less

Good one-way deal

$315 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Chicago (CHI) flights.
Search Deals
From Boise Air Term. Gowen Fld to Chicago (CHI)
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 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 Boise Air Term. Gowen Fld to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Chicago (CHI).
Search Deals

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 December 12, 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

Tue 1/27

9:02 am-5:10 pm

1 stop7h 08m

Chicago O'Hare Intl

Tue 2/17

3:54 pm-10:40 pm

1 stop7h 46m

$228

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 1/6

2:39 pm-11:59 pm

1 stop8h 20m

Chicago O'Hare Intl

Fri 1/9

6:06 pm-11:59 pm

1 stop6h 53m

$228

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 1/20

5:55 pm-2:38 pm

1 stop19h 43m

Chicago O'Hare Intl

Sat 1/24

3:35 pm-11:01 pm

1 stop8h 26m

$248

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 1/27

5:40 am-1:10 pm

1 stop6h 30m

Chicago O'Hare Intl

Sat 2/14

5:29 pm-11:59 pm

1 stop7h 30m

$248

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 1/29

5:40 am-1:10 pm

1 stop6h 30m

Chicago O'Hare Intl

Sat 2/14

5:29 pm-11:59 pm

1 stop7h 30m

$248

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 1/9

5:40 am-1:10 pm

1 stop6h 30m

Chicago O'Hare Intl

Tue 1/13

6:06 pm-11:59 pm

1 stop6h 53m

$248

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 1/9

8:15 am-1:03 pm

Nonstop3h 48m

Chicago O'Hare Intl

Tue 1/13

9:15 am-12:39 pm

Nonstop4h 24m

$249

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 1/20

10:15 am-6:52 pm

1 stop7h 37m

Chicago O'Hare Intl

Wed 2/4

9:15 am-12:39 pm

Nonstop4h 24m

$259

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 1/8

8:15 am-1:03 pm

Nonstop3h 48m

Chicago O'Hare Intl

Thu 1/15

1:00 pm-7:51 pm

1 stop7h 51m

$259

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 1/29

1:55 pm-11:50 pm

1 stop8h 55m

Chicago O'Hare Intl

Fri 2/13

5:29 pm-10:40 pm

1 stop30h 11m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 40 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 December.
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 December 5, 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 $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 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 December 12, 2025.

It’s typically best to fly out from Boise to Chicago in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

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 December 12, 2025.

The most flights from BOI to CHI are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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 December 12, 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
11,432 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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 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 7 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 39m. The distance between Boise and Chicago is about 1444 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 $92 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $221 and $224 round-trip. Users have found that Delta is 75% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $87. Delta flights start at $87 while deals on American Airlines start at $117 one-way.

  • 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 (86%), Lufthansa (83%) or Emirates (79%) 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 $154. On average you can expect to pay $831. The most popular route, (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), can usually be booked for $212.

  • 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 $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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$134Average$281FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$224Average$353FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$230Average$454FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$233Average$388FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$261Average$389FlexibilityNo cancel feeOn-time71%

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