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$91+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Boise Air Term. Gowen Fld are usually found in September or August, booked 69 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap 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 June 12, 2025.

Round-trip from

$190
(Cheapflightsfares)

One-way from

$91
(Delta)

Popular in

November

Cheapest in

September

Average price

$394

Good round-trip deal

$302 or less

Good one-way deal

$187 or less
From Chicago (CHI) to Boise Air Term. Gowen Fld
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One-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 12% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Chicago (CHI) to Boise Air Term. Gowen Fld.
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Find 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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/283:21 pmORD - BOI
1 stop6h 23mSpirit Airlines
Fri 10/39:49 pmBOI - ORD
1 stop15h 27mSpirit Airlines
Deal found 6/11$190
This Delta deal was found by Cheapflights users on 6/10. 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 8/209:15 amMDW - BOI
1 stop5h 46mDelta
Wed 10/221:43 pmBOI - MDW
1 stop7h 01mDelta
Deal found 6/10$195
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/87:20 pmORD - BOI
1 stop5h 49mDelta
Tue 7/1512:50 pmBOI - ORD
1 stop8h 18mDelta
Deal found 6/10$195
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:20 amORD - BOI
1 stop9h 40mHawaiian Airlines
Tue 9/236:35 amBOI - ORD
1 stop9h 14mHawaiian Airlines
Deal found 6/11$225
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:40 amORD - BOI
1 stop7h 06mMultiple Airlines
Fri 8/159:49 pmBOI - ORD
1 stop15h 27mMultiple Airlines
Deal found 6/10$232
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 7/156:00 amORD - BOI
1 stop10h 04mAlaska Airlines
Tue 7/224:00 pmBOI - ORD
1 stop6h 39mAlaska Airlines
Deal found 6/12$234
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 10/259:45 amORD - BOI
Nonstop3h 59mAmerican Airlines
Wed 10/291:17 pmBOI - ORD
Nonstop3h 37mAmerican Airlines
Deal found 6/12$255
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/225:40 amORD - BOI
1 stop7h 07mFrontier
Sun 6/2912:36 pmBOI - ORD
1 stop10h 07mFrontier
Deal found 6/10$260
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:15 amORD - BOI
1 stop8h 34mUnited Airlines
Wed 10/228:20 amBOI - ORD
Nonstop3h 39mUnited Airlines
Deal found 6/10$261
This Southwest deal was found by Cheapflights users on 6/12. 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 8/281:05 pmMDW - BOI
Nonstop3h 45mSouthwest
Sun 8/313:00 pmBOI - MDW
Nonstop3h 20mSouthwest
Deal found 6/12$274
This Southwest deal was found by Cheapflights users on 6/10. 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.
Mon 6/306:55 pmORD - BOI
1 stop6h 35mSouthwest
Sat 7/55:40 amBOI - ORD
1 stop6h 25mSouthwest
Deal found 6/10$315

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 June 12, 2025.
Use the filters below to find and compare flights from Chicago to Boise that are best for you.

Fly from

Chicago

Fly to

Boise

Route

Depart

Return

Price

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Thu 9/4

3:21 pm-8:44 pm

1 stop6h 23m

Boise Air Term. Gowen Fld

Sun 9/7

9:49 pm-2:16 pm

1 stop15h 27m

$191

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Wed 8/20

9:15 am-2:01 pm

1 stop5h 46m

Boise Air Term. Gowen Fld

Wed 10/22

1:43 pm-9:44 pm

1 stop7h 01m

$195

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 7/8

7:20 pm-12:09 am

1 stop5h 49m

Boise Air Term. Gowen Fld

Tue 7/15

12:50 pm-10:08 pm

1 stop8h 18m

$195

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Mon 8/11

8:00 am-4:10 pm

1 stop9h 10m

Boise Air Term. Gowen Fld

Tue 8/19

4:00 pm-11:39 pm

1 stop6h 39m

$227

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sun 8/10

5:40 am-11:46 am

1 stop7h 06m

Boise Air Term. Gowen Fld

Fri 8/15

9:49 pm-2:16 pm

1 stop15h 27m

$232

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 7/15

6:00 am-3:04 pm

1 stop10h 04m

Boise Air Term. Gowen Fld

Tue 7/22

4:00 pm-11:39 pm

1 stop6h 39m

$234

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sun 6/22

5:40 am-11:47 am

1 stop7h 07m

Boise Air Term. Gowen Fld

Sun 6/29

12:36 pm-11:43 pm

1 stop10h 07m

$260

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 8/20

6:15 am-1:49 pm

1 stop8h 34m

Boise Air Term. Gowen Fld

Wed 10/22

8:20 am-12:59 pm

Nonstop3h 39m

$261

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Thu 8/28

1:05 pm-3:50 pm

Nonstop3h 45m

Boise Air Term. Gowen Fld

Sun 8/31

3:00 pm-7:20 pm

Nonstop3h 20m

$274

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sat 8/16

9:40 am-12:19 pm

Nonstop3h 39m

Boise Air Term. Gowen Fld

Tue 8/19

1:07 pm-5:40 pm

Nonstop3h 33m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 25 results
1
2
3

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 June 9, 2025.

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 69 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, October is the cheapest month in which you can book a flight from Chicago to Boise (average of $314). Flying from Chicago to Boise in June is currently the most expensive (average of $395). 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 June 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 22% on flights from Chicago to Boise by exploring options for tickets in the morning.

What is the cheapest day to fly from Chicago to Boise?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Boise. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Chicago to Boise flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 June 12, 2025.

The most flights from CHI to BOI are scheduled on a Tuesday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Boise by month

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

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

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

If weather is an important factor for your trip to Boise, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Chicago to Boise have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

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 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. 6 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 7 inbound flights from Chicago per day.

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

    Cheapflights users have booked flights from Chicago to Boise round-trip from $190. Other airlines that can offer you cheap pricing are Delta, from $195, and Hawaiian Airlines, from $225. Spirit Airlines is currently priced 54% 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 ($91), Spirit Airlines ($95), and Southwest ($96).

  • 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: SkyWest Airlines (84%), United Airlines (83%), Air Canada (81%).

  • What are the cheapest flights from Chicago to Boise?

    On average you can expect to pay $310 for a flight from Chicago to Boise. The cheapest flight overall is $127 while the most popular route, (Chicago O'Hare Intl - Boise Air Term. Gowen Fld) is currently priced at $190.

  • 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, October is the cheapest month in which you can book a flight from Chicago to Boise (average of $314). Flying from Chicago to Boise in June is currently the most expensive (average of $395). 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
Nampa
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Ontario
McCall
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Alternative routes for Chicago to Boise

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Chicago to Boise

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$104Average$274FlexibilityNo cancel feeOn-time65%
DeltaCheapest$174Average$288FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$204Average$337FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$334FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$258Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$271Average$490FlexibilityNo cancel feeOn-time69%

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