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$92+ Cheap flights from Chicago (CHI) to Boise (BOI)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Find cheap flights from Chicago to Boise 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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Chicago to Boise Air Term. Gowen Fld are usually found in February or October, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Chicago to Boise

Cheapest flights from Chicago to Boise
Explore the most affordable flight options available from Chicago to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.

This CheapOair deal was found by Cheapflights users on 3/18. 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.
Wed 4/83:29 pm
ORD
-
BOI
1 stop20h 39m
Frontier
Sun 4/1212:03 pm
BOI
-
ORD
1 stop24h 16m
Frontier
Deal found 3/18$261
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 am
ORD
-
BOI
1 stop7h 35m
Alaska Airlines
Sat 5/92:57 pm
BOI
-
ORD
1 stop8h 02m
Alaska Airlines
Deal found 3/22$265
This Expedia deal was found by Cheapflights users on 3/18. 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.
Tue 5/58:00 am
ORD
-
BOI
1 stop8h 33m
Multiple Airlines
Sun 5/101:22 pm
BOI
-
ORD
1 stop6h 15m
Multiple Airlines
Deal found 3/18$273
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/44:28 pm
ORD
-
BOI
2 stops20h 59m
Frontier
Tue 5/121:22 pm
BOI
-
ORD
1 stop6h 15m
Frontier
Deal found 3/20$275
This CheapOair deal was found by Cheapflights users on 3/20. 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.
Wed 7/89:48 pm
ORD
-
BOI
1 stop15h 21m
Frontier
Thu 7/161:04 pm
BOI
-
ORD
1 stop6h 49m
Frontier
Deal found 3/20$281
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sat 5/99:42 pm
ORD
-
BOI
1 stop15h 45m
Frontier
Tue 5/121:22 pm
BOI
-
ORD
1 stop6h 15m
Frontier
Deal found 3/20$287
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 am
ORD
-
BOI
1 stop7h 35m
Alaska Airlines
Tue 5/512:15 pm
BOI
-
ORD
1 stop10h 44m
Alaska Airlines
Deal found 3/22$295
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 4/154:10 pm
ORD
-
BOI
1 stop8h 37m
Alaska Airlines
Wed 4/222:57 pm
BOI
-
ORD
1 stop8h 02m
Alaska Airlines
Deal found 3/19$300
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/44:28 pm
ORD
-
BOI
2 stops20h 59m
Frontier
Thu 5/71:22 pm
BOI
-
ORD
1 stop6h 15m
Frontier
Deal found 3/20$301
This Alaska Airlines deal was found by Cheapflights users on 3/17. 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.
Sat 10/312:54 pm
ORD
-
BOI
1 stop9h 19m
Alaska Airlines
Tue 11/36:00 am
BOI
-
ORD
1 stop7h 12m
Alaska Airlines
Deal found 3/17$305
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 4/298:00 am
ORD
-
BOI
1 stop6h 52m
Alaska Airlines
Mon 5/42:57 pm
BOI
-
ORD
1 stop8h 02m
Alaska Airlines
Deal found 3/19$310
This Delta deal was found by Cheapflights users on 3/20. 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 4/229:29 am
MDW
-
BOI
1 stop5h 57m
Delta
Tue 4/2811:35 pm
BOI
-
MDW
1 stop9h 21m
Delta
Deal found 3/20$335

Find flight deals from Chicago to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Boise (BOI). 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$248
(Southwest)

One-way from

$92
(CheapOair)

Popular in

June

Cheapest in

February

Average price

$397

Good round-trip deal

$329 or less

Good one-way deal

$259 or less
Provider with most accurate pricing for Chicago (CHI)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Boise Air Term. Gowen Fld flights.
Search Deals
From Chicago (CHI) to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 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 Chicago (CHI) to Boise Air Term. Gowen Fld.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Boise 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 23, 2026.
Use the filters below to find and compare flights from Chicago to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 4/29

6:00 am-1:52 pm

1 stop8h 52m

Boise Air Term. Gowen Fld

Sat 5/2

2:57 pm-11:59 pm

1 stop8h 02m

$295

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 4/15

4:10 pm-11:47 pm

1 stop8h 37m

Boise Air Term. Gowen Fld

Wed 4/22

2:57 pm-11:59 pm

1 stop8h 02m

$300

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 4/30

3:52 pm-11:02 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

Sat 5/2

2:57 pm-11:59 pm

1 stop8h 02m

$310

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 4/30

3:52 pm-11:02 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

Mon 5/4

2:57 pm-11:59 pm

1 stop8h 02m

$325

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Wed 4/29

9:29 am-2:26 pm

1 stop5h 57m

Boise Air Term. Gowen Fld

Sat 5/2

6:00 am-6:36 pm

2 stops11h 36m

$340

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sat 4/11

6:00 am-12:22 pm

1 stop7h 22m

Boise Air Term. Gowen Fld

Tue 4/14

6:32 am-6:40 pm

1 stop11h 08m

$344

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Sat 5/16

9:22 am-5:50 pm

2 stops9h 28m

Boise Air Term. Gowen Fld

Tue 5/26

9:16 pm-8:42 am

2 stops10h 26m

$345

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 4/15

2:09 pm-12:17 am

2 stops11h 08m

Boise Air Term. Gowen Fld

Wed 4/22

7:24 am-4:39 pm

1 stop8h 15m

$345

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sat 5/16

5:41 pm-11:46 pm

1 stop7h 05m

Boise Air Term. Gowen Fld

Tue 5/26

11:39 pm-8:39 am

1 stop8h 00m

$345

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 8/19

1:15 pm-11:56 pm

2 stops11h 41m

Boise Air Term. Gowen Fld

Wed 8/26

6:00 am-6:01 pm

2 stops11h 01m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 42 resultsSorted by cheapest first
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Compare providers for flights from Chicago to Boise

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 Chicago to Boise in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Chicago-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Boise 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 Chicago-Boise 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 Chicago to Boise

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Boise. Price data was last updated on March 13, 2026.

The price you pay for your flight from Chicago to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, July is the cheapest month in which you can book a flight from Chicago to Boise (average of $158). Flying from Chicago to Boise in March is currently the most expensive (average of $383). 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 CHI to BOI?

Find hourly flight availability from Chicago to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 23, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 25% on flights from Chicago to Boise by exploring options for tickets at noon.

Weekly flight availability from Chicago to Boise

Explore weekly flight availability from Chicago to Boise. 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 March 23, 2026.

The most flights from CHI to BOI are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated March 23, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Chicago to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
12,098 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
8,319 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
9,460 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
11,489 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly into when you book flights from Chicago to Boise. 4 airlines have flights to Air Term. Gowen Fld from Chicago on a regular basis. Booking flights from Chicago to Boise Air Term. Gowen Fld should not be difficult; the airport handles an average of 6 inbound flights from Chicago per day.

  • How long is the flight from Chicago to Boise?

    Departing from Chicago to Boise will take you 5h 57m. The distance from Chicago to Boise is about 1444 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Chicago to Boise round-trip from $174. Other airlines that can offer you cheap pricing are United Airlines, from $248, and Southwest, from $254. Delta is currently priced 52% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Chicago to Boise are Delta ($87), Alaska Airlines ($114), and United Airlines ($134).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Boise on time: American Airlines (66%), Envoy Air (66%), Air Canada (59%).

  • What are the cheapest flights from Chicago to Boise?

    On average you can expect to pay $346 for a flight from Chicago to Boise. The cheapest flight overall is $189 while the most popular route, (Chicago O'Hare Intl - Boise Air Term. Gowen Fld) is currently priced at $293.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Chicago to Boise (average of $158). Flying from Chicago to Boise in March is currently the most expensive (average of $383). 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
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 4 airlines flying from Chicago to Boise

Discover the top 4 airlines that operate flights from Chicago to Boise. 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$276FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$433FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$254Average$368FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$255Average$373FlexibilityNo cancel feeOn-time71%

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