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$78+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
May 6 — May 131
Tue 5/6
Tue 5/13
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 43 days in advance, depart on a Saturday or Wednesday and return on a Saturday

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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$174
(Alaska Airlines)

One-way from

$78
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$408

Good round-trip deal

$412 or less

Good one-way deal

$139 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. 1% potential increase in price ($4 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 May 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 May 1, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/208:59 pmBOI - ORD
1 stop7h 41mAlaska Airlines
Wed 5/288:00 amORD - BOI
1 stop8h 55mAlaska Airlines
Deal found 4/29$174
This Delta deal was found by Cheapflights users on 4/30. 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 6/1410:24 amBOI - MDW
1 stop5h 48mDelta
Sat 6/217:21 pmMDW - BOI
1 stop5h 30mDelta
Deal found 4/30$175
This Delta deal was found by Cheapflights users on 4/29. 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 5/215:45 amBOI - ORD
1 stop6h 45mDelta
Fri 5/306:20 pmORD - BOI
1 stop6h 52mDelta
Deal found 4/29$175
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/3012:16 pmBOI - ORD
1 stop16h 09mSpirit Airlines
Sun 6/19:02 pmORD - BOI
1 stop15h 19mSpirit Airlines
Deal found 4/30$178
This Expedia deal was found by Cheapflights users on 4/30. 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.
Mon 5/197:06 pmBOI - ORD
1 stop9h 34mMultiple Airlines
Thu 5/229:02 pmORD - BOI
1 stop15h 19mMultiple Airlines
Deal found 4/30$223
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 7/285:42 pmBOI - ORD
1 stop5h 48mUnited Airlines
Thu 7/318:45 amORD - BOI
Nonstop3h 58mUnited Airlines
Deal found 4/30$224
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 5/278:59 pmBOI - ORD
1 stop7h 41mHawaiian Airlines
Sat 5/316:00 amORD - BOI
1 stop9h 05mHawaiian Airlines
Deal found 4/30$234
This Frontier deal was found by Cheapflights users on 4/29. 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 5/2212:36 pmBOI - ORD
1 stop10h 16mFrontier
Thu 5/296:00 amORD - BOI
1 stop6h 51mFrontier
Deal found 4/29$238
This American Airlines deal was found by Cheapflights users on 4/30. 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 6/101:15 pmBOI - ORD
Nonstop3h 37mAmerican Airlines
Tue 6/179:45 amORD - BOI
Nonstop3h 59mAmerican Airlines
Deal found 4/30$255
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2712:36 pmBOI - MDW
1 stop7h 17mFrontier
Sat 5/312:44 pmMDW - BOI
1 stop22h 03mFrontier
Deal found 4/30$280
This Southwest deal was found by Cheapflights users on 4/30. 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 7/106:00 amBOI - ORD
2 stops9h 45mSouthwest
Mon 7/145:25 pmORD - BOI
1 stop8h 40mSouthwest
Deal found 4/30$282
This Southwest deal was found by Cheapflights users on 4/30. 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 7/102:50 pmBOI - MDW
Nonstop3h 20mSouthwest
Mon 7/147:05 pmMDW - BOI
1 stop7h 00mSouthwest
Deal found 4/30$296

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 May 1, 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 5/20

7:06 pm-5:40 am

1 stop9h 34m

Chicago O'Hare Intl

Sat 5/31

6:00 am-2:05 pm

1 stop9h 05m

$174

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Sat 6/14

10:24 am-5:12 pm

1 stop5h 48m

Chicago Midway

Sat 6/21

7:21 pm-11:51 pm

1 stop5h 30m

$175

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Wed 5/21

5:45 am-1:30 pm

1 stop6h 45m

Chicago O'Hare Intl

Sat 5/31

3:45 pm-8:34 pm

1 stop5h 49m

$175

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 5/30

12:16 pm-5:25 am

1 stop16h 09m

Chicago O'Hare Intl

Sun 6/1

9:02 pm-11:21 am

1 stop15h 19m

$178

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Mon 5/19

7:06 pm-5:40 am

1 stop9h 34m

Chicago O'Hare Intl

Thu 5/22

9:02 pm-11:21 am

1 stop15h 19m

$223

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Mon 7/28

5:42 pm-12:30 am

1 stop5h 48m

Chicago O'Hare Intl

Thu 7/31

8:45 am-11:43 am

Nonstop3h 58m

$224

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 5/27

8:59 pm-5:40 am

1 stop7h 41m

Chicago O'Hare Intl

Sat 5/31

6:00 am-2:05 pm

1 stop9h 05m

$234

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 5/22

12:36 pm-11:52 pm

1 stop10h 16m

Chicago O'Hare Intl

Thu 5/29

6:00 am-11:51 am

1 stop6h 51m

$238

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 6/10

1:15 pm-5:52 pm

Nonstop3h 37m

Chicago O'Hare Intl

Tue 6/17

9:45 am-12:44 pm

Nonstop3h 59m

$255

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 5/27

12:36 pm-8:53 pm

1 stop7h 17m

Chicago Midway

Sat 5/31

2:44 pm-11:47 am

1 stop22h 03m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 22 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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
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 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 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 April 25, 2025.

To ensure you get the cheapest price possible for a flight from Boise to Chicago, you should look to book at least 43 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 May 1, 2025.

It’s typically best to fly out from Boise to Chicago in the evening. Doing so could potentially save you 63% 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 June 30, 2024.

Travelers seeking maximum savings on their Boise to Chicago flight should consider departing on Tuesday 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.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 May 1, 2025.
Read through reviews of airlines operating flights from Boise to Chicago, such as Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 3 flights from Air Term. Gowen Fld to Chicago per day from 6 different airlines.

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

    Our cheapest airline available from Boise to Chicago is Alaska Airlines. Our recent data shows that you can find tickets from as low as $174 on this airline. Additional options worth looking into are Delta and Spirit Airlines, starting at $175 and $178 round-trip. Users have found that Alaska Airlines is 56% 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 United Airlines, which is currently one of the cheapest options available, starting at $78. Alaska Airlines flights start at $87 while deals on Southwest start at $88 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 Lufthansa (95%), SkyWest Airlines (93%) or Air Canada (93%) 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 $171. On average you can expect to pay $962. The most popular route, (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), can usually be booked for $155.

  • 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 Boise?

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

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Alternative routes for Boise to Chicago

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Top 6 airlines flying from Boise to Chicago

Discover the top 6 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$309FlexibilityNo cancel feeOn-time65%
DeltaCheapest$186Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$196Average$396FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$217Average$333FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$268Average$517FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$324Average$384FlexibilityNo cancel feeOn-time63%

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