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$105+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Find cheap flights from Boise to Chicago 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”

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Chicago are usually found in September 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

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 March 24, 2026.

This Southwest deal was found by Cheapflights users on 3/24. 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 4/214:05 pm
BOI
-
MDW
1 stop6h 15m
Southwest
Tue 4/285:35 pm
MDW
-
BOI
1 stop6h 55m
Southwest
Deal found 3/24$246
This Southwest deal was found by Cheapflights users on 3/24. 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 4/214:05 pm
BOI
-
ORD
1 stop6h 50m
Southwest
Tue 4/2810:30 am
ORD
-
BOI
1 stop5h 55m
Southwest
Deal found 3/24$246
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:04 pm
BOI
-
ORD
1 stop6h 49m
Frontier
Mon 7/279:48 pm
ORD
-
BOI
1 stop15h 21m
Frontier
Deal found 3/22$261
This Delta deal was found by Cheapflights users on 3/23. 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 4/2211:35 pm
BOI
-
MDW
1 stop9h 21m
Delta
Wed 4/299:29 am
MDW
-
BOI
1 stop5h 57m
Delta
Deal found 3/23$271
This Delta deal was found by Cheapflights users on 3/23. 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 4/221:52 pm
BOI
-
ORD
1 stop9h 06m
Delta
Wed 4/2912:46 pm
ORD
-
BOI
1 stop8h 14m
Delta
Deal found 3/23$271
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/512:03 pm
BOI
-
ORD
1 stop24h 16m
Frontier
Wed 4/83:29 pm
ORD
-
BOI
1 stop20h 39m
Frontier
Deal found 3/22$272
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 4/2511:00 am
BOI
-
ORD
2 stops10h 20m
Southwest
Sat 5/27:00 am
ORD
-
BOI
2 stops10h 15m
Southwest
Deal found 3/23$274
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/211:29 pm
BOI
-
ORD
Nonstop3h 47m
American Airlines
Tue 4/289:54 am
ORD
-
BOI
Nonstop3h 55m
American Airlines
Deal found 3/24$283
This Southwest deal was found by Cheapflights users on 3/23. 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 4/281:05 pm
BOI
-
ORD
2 stops8h 50m
Southwest
Fri 5/14:50 pm
ORD
-
BOI
1 stop8h 55m
Southwest
Deal found 3/23$287
This Southwest deal was found by Cheapflights users on 3/23. 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 4/225:00 pm
BOI
-
MDW
2 stops10h 35m
Southwest
Wed 4/297:30 am
MDW
-
BOI
2 stops10h 10m
Southwest
Deal found 3/23$289
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 4/2511:00 am
BOI
-
MDW
1 stop5h 40m
Southwest
Sat 5/26:00 am
MDW
-
BOI
1 stop5h 25m
Southwest
Deal found 3/23$299
This Southwest deal was found by Cheapflights users on 3/22. 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.
Fri 5/84:20 pm
BOI
-
MDW
1 stop6h 20m
Southwest
Mon 5/114:10 pm
MDW
-
BOI
1 stop9h 50m
Southwest
Deal found 3/22$318

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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(Delta)

One-way from

$105
(Frontier)

Popular in

March

Cheapest in

September

Average price

$473

Good round-trip deal

$388 or less

Good one-way deal

$196 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. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 24, 2026.
Use the filters below to find and compare flights from Boise to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sat 4/25

5:50 am-2:08 pm

1 stop7h 18m

Chicago O'Hare Intl

Sat 5/2

6:00 am-1:52 pm

1 stop8h 52m

$295

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 5/5

6:40 am-2:00 pm

1 stop6h 20m

Chicago Midway

Tue 5/12

5:35 pm-11:30 pm

1 stop6h 55m

$335

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sat 8/15

5:40 am-1:11 pm

1 stop6h 31m

Chicago Midway

Tue 8/18

9:20 am-2:03 pm

1 stop5h 43m

$335

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sat 4/25

11:00 am-10:20 pm

2 stops10h 20m

Chicago O'Hare Intl

Sat 5/2

7:00 am-2:10 pm

1 stop8h 10m

$340

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Wed 8/12

5:40 am-1:11 pm

1 stop6h 31m

Chicago Midway

Fri 8/21

6:45 pm-11:29 pm

1 stop5h 44m

$355

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 4/17

6:32 am-7:02 pm

1 stop11h 30m

Chicago O'Hare Intl

Mon 4/20

8:20 am-11:47 pm

1 stop16h 27m

$357

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Fri 5/29

7:55 pm-5:00 am

1 stop8h 05m

Chicago Midway

Wed 6/3

4:00 pm-12:25 am

2 stops9h 25m

$360

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Fri 8/14

11:30 pm-9:50 am

1 stop9h 20m

Chicago Midway

Sat 8/22

9:20 am-4:48 pm

2 stops8h 28m

$360

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 6/5

11:39 pm-10:29 am

2 stops9h 50m

Chicago O'Hare Intl

Tue 6/9

6:30 am-10:58 am

1 stop5h 28m

$360

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Mon 4/20

8:40 pm-8:38 am

2 stops10h 58m

Chicago O'Hare Intl

Sat 5/2

7:00 am-5:21 pm

2 stops11h 21m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 43 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Chicago flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

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 March 24, 2026.

It’s typically best to fly out from Boise to Chicago at noon. Doing so could potentially save you 39% on the flight price compared to flying in the evening, which is usually more expensive.

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 March 24, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,101 reviews
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,320 reviews
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,469 reviews
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,491 reviews
Southwest
8.0
Very good
4,331 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 6 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 20m. 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 $87 on this airline. Additional options worth looking into are United Airlines and Southwest, starting at $215 and $233 round-trip. Users have found that Delta is 76% 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 Emirates (90%), Lufthansa (87%) or SkyWest Airlines (86%) 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 $126. On average you can expect to pay $539. The most popular route, (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), can usually be booked for $271.

  • 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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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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$87Average$305FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$215Average$448FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$233Average$387FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$255Average$376FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$260Average$374FlexibilityNo cancel feeOn-time75%

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