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$80+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 90 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 julio 31, 2025.

Round-trip from

$274
(Alaska Airlines)

One-way from

$80
(Booking.com)

Popular in

November

Cheapest in

September

Average price

$423

Good round-trip deal

$275 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. 13% potential increase in price ($62 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 July 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 julio 31, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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.
mar. 12/912:17 pmORD - BOI
2 stops8h 59mDelta
mié. 12/175:40 amBOI - ORD
1 stop8h 16mDelta
Deal found 7/28$270
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
sáb. 8/236:20 amORD - BOI
1 stop9h 40mAlaska Airlines
sáb. 8/306:59 pmBOI - ORD
2 stops11h 04mAlaska Airlines
Deal found 7/28$274
This Southwest deal was found by Cheapflights users on 7/30. 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.
lun. 9/81:05 pmMDW - BOI
Nonstop3h 45mSouthwest
lun. 9/151:10 pmBOI - MDW
Nonstop3h 25mSouthwest
Deal found 7/30$275
This American Airlines deal was found by Cheapflights users on 7/28. 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.
sáb. 8/239:50 amORD - BOI
Nonstop3h 39mAmerican Airlines
sáb. 8/301:10 pmBOI - ORD
Nonstop3h 33mAmerican Airlines
Deal found 7/28$275
This United Airlines deal was found by Cheapflights users on 7/31. 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.
sáb. 9/208:45 amORD - BOI
Nonstop3h 46mUnited Airlines
sáb. 10/118:20 amBOI - ORD
Nonstop3h 39mUnited Airlines
Deal found 7/31$277
This Frontier deal was found by Cheapflights users on 7/31. 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.
jue. 8/145:40 amORD - BOI
1 stop7h 06mFrontier
dom. 8/1712:36 pmBOI - ORD
1 stop10h 56mFrontier
Deal found 7/31$278
This Delta deal was found by Cheapflights users on 7/30. 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.
sáb. 9/137:15 pmMDW - BOI
1 stop5h 44mDelta
sáb. 9/205:25 amBOI - MDW
1 stop6h 38mDelta
Deal found 7/30$279
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/216:00 amORD - BOI
1 stop8h 21mMultiple Airlines
dom. 10/1212:48 pmBOI - ORD
1 stop10h 05mMultiple Airlines
Deal found 7/29$279
This Mytrip deal was found by Cheapflights users on 7/30. 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.
sáb. 9/65:05 amORD - BOI
3 stops33h 16mSpirit Airlines
sáb. 9/132:16 pmBOI - ORD
1 stop6h 16mSpirit Airlines
Deal found 7/30$284
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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.
mar. 8/196:00 amORD - BOI
1 stop7h 20mHawaiian Airlines
mar. 8/194:00 pmBOI - ORD
1 stop6h 39mHawaiian Airlines
Deal found 7/30$285
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/126:15 amORD - BOI
1 stop6h 30mSouthwest
mar. 8/1911:30 amBOI - ORD
2 stops11h 10mSouthwest
Deal found 7/29$296

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 julio 31, 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

sáb. 8/23

6:20 am-3:00 pm

1 stop9h 40m

Boise Air Term. Gowen Fld

sáb. 8/30

6:59 pm-7:03 am

2 stops11h 04m

$274

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

lun. 9/8

1:05 pm-3:50 pm

Nonstop3h 45m

Boise Air Term. Gowen Fld

lun. 9/15

1:10 pm-5:35 pm

Nonstop3h 25m

$275

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sáb. 8/23

9:50 am-12:29 pm

Nonstop3h 39m

Boise Air Term. Gowen Fld

sáb. 8/30

1:10 pm-5:43 pm

Nonstop3h 33m

$275

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sáb. 9/20

8:45 am-11:31 am

Nonstop3h 46m

Boise Air Term. Gowen Fld

sáb. 10/11

8:20 am-12:59 pm

Nonstop3h 39m

$277

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

jue. 8/14

5:40 am-11:46 am

1 stop7h 06m

Boise Air Term. Gowen Fld

dom. 8/17

12:36 pm-12:32 am

1 stop10h 56m

$278

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

sáb. 9/13

7:15 pm-11:59 pm

1 stop5h 44m

Boise Air Term. Gowen Fld

sáb. 9/20

5:25 am-1:03 pm

1 stop6h 38m

$279

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

dom. 9/21

6:00 am-1:21 pm

1 stop8h 21m

Boise Air Term. Gowen Fld

dom. 10/12

12:48 pm-11:53 pm

1 stop10h 05m

$279

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sáb. 9/6

5:05 am-1:21 pm

3 stops33h 16m

Boise Air Term. Gowen Fld

sáb. 9/13

2:16 pm-9:32 pm

1 stop6h 16m

$284

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

mar. 8/19

6:00 am-12:20 pm

1 stop7h 20m

Boise Air Term. Gowen Fld

mar. 8/19

4:00 pm-11:39 pm

1 stop6h 39m

$285

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

mié. 8/13

8:25 am-4:57 pm

2 stops9h 32m

Boise Air Term. Gowen Fld

dom. 8/17

6:00 am-11:58 am

1 stop4h 58m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 results
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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 July 25, 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 90 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 $398). 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 julio 31, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 52% 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 julio 31, 2025.

The most flights from CHI to BOI are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 julio 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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. 5 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 5 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 $274. Other airlines that can offer you cheap pricing are Southwest, from $275, and American Airlines, from $275. Alaska Airlines is currently priced 33% 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 Spirit Airlines ($80), Alaska Airlines ($98), and Delta ($99).

  • 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 (90%), Envoy Air (90%), United Airlines (81%).

  • What are the cheapest flights from Chicago to Boise?

    On average you can expect to pay $349 for a flight from Chicago to Boise. The cheapest flight overall is $79 while the most popular route, (Chicago O'Hare Intl - Boise Air Term. Gowen Fld) is currently priced at $166.

  • 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 $398). 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
Meridian
Nampa
Ontario
McCall
Caldwell

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Alternative routes for Chicago to Boise

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Top 5 airlines flying from Chicago to Boise

Discover the top 5 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$288FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$227Average$337FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$348FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$254Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$474FlexibilityNo cancel feeOn-time69%

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