How many flights depart from Boise to Illinois on average per week?

As of December 2025, 52 flights take off from Boise and land in Illinois each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.

How many flights depart from Boise to Illinois on average per day?

7 flights are operational daily from Boise to Illinois as of December 2025. The most popular departure time for this route is 12:00PM, with 60% of flights per day taking off in the afternoon.

What airlines fly to Illinois?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Illinois from Boise according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Illinois?

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Boise Air Term. Gowen Fld to Illinois

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Illinois?

Prices for flights from Boise Air Term. Gowen Fld Airport to Illinois were last updated today.

How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Illinois?

As of December 2025, there are 5 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Illinois.

How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$83 Cheap Flights from Boise to Illinois in 2025/26

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Find the cheapest flights from Boise to Illinois

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:07 pm - 10:02 am

BOI

STL

20h 55m1 stop

3:43 pm - 1:16 pm

STL

BOI

22h 33m1 stop

$148Frontier

dom., ene. 11 - sáb., ene. 17

12:28 pm - 11:14 pm

BOI

ORD

9h 46m1 stop

7:55 am - 11:03 am

ORD

BOI

28h 08m2 stops

$186Frontier

jue., feb. 19 - sáb., feb. 21

8:15 am - 1:03 pm

BOI

ORD

3h 48mnonstop

9:15 am - 12:39 pm

ORD

BOI

4h 24mnonstop

$249United Airlines

vie., ene. 9 - mar., ene. 13

10:39 am - 9:35 pm

BOI

STL

9h 56m2 stops

6:10 am - 4:17 pm

STL

BOI

11h 07m2 stops

$256Delta

jue., ene. 8 - jue., ene. 15

5:30 am - 1:09 pm

BOI

MDW

6h 39m1 stop

1:49 pm - 8:55 pm

MDW

BOI

8h 06m1 stop

$269Delta

vie., ene. 9 - vie., ene. 16

1:30 pm - 7:55 pm

BOI

MDW

5h 25m1 stop

5:40 am - 10:20 am

MDW

BOI

5h 40m1 stop

$292Southwest

mar., ene. 20 - jue., feb. 5

3:35 pm - 10:40 pm

BOI

MDW

6h 05m1 stop

7:50 am - 2:45 pm

MDW

BOI

7h 55m1 stop

$299Southwest

lun., ene. 12 - jue., ene. 15

7:05 pm - 10:10 am

BOI

PIA

14h 05m2 stops

8:35 am - 1:35 pm

PIA

BOI

6h 00m1 stop

$354United Airlines

sáb., feb. 7 - mié., feb. 11

1:58 pm - 10:16 pm

BOI

BMI

7h 18m1 stop

8:50 am - 1:53 pm

BMI

BOI

6h 03m1 stop

$463American Airlines

mar., ene. 6 - mar., ene. 13

6:41 am - 10:16 pm

BOI

BMI

14h 35m2 stops

6:29 am - 1:08 pm

BMI

BOI

7h 39m1 stop

$511American Airlines

mar., ene. 6 - mar., ene. 13

Delta flights from Boise to Illinois

Our best Delta deals on Boise to Illinois flight tickets

Delta

Jan 8

BOI10:39 amBoise Air Term. Gowen Fld

9h 56m

2 stops

STL9:35 pmLambert-St Louis

Jan 15

STL6:10 amLambert-St Louis

11h 07m

2 stops

BOI4:17 pmBoise Air Term. Gowen Fld

$256

Find similar

Delta

Jan 26

BOI3:03 pmBoise Air Term. Gowen Fld

5h 40m

1 stop

ORD9:43 pmChicago O'Hare Intl

Feb 13

ORD2:20 pmChicago O'Hare Intl

6h 50m

1 stop

BOI8:10 pmBoise Air Term. Gowen Fld

$269

Find similar

Delta

Jan 26

BOI5:20 amBoise Air Term. Gowen Fld

10h 18m

2 stops

ORD4:38 pmChicago O'Hare Intl

Feb 16

ORD6:15 amChicago O'Hare Intl

8h 43m

1 stop

BOI1:58 pmBoise Air Term. Gowen Fld

$274

Find similar

Alaska Airlines flights from Boise to Illinois

Our best Alaska Airlines deals on Boise to Illinois flight tickets

Alaska Airlines

Feb 3

BOI3:43 pmBoise Air Term. Gowen Fld

7h 07m

1 stop

ORD11:50 pmChicago O'Hare Intl

Feb 5

ORD2:06 pmChicago O'Hare Intl

6h 58m

1 stop

BOI8:04 pmBoise Air Term. Gowen Fld

$227

Find similar

Alaska Airlines

Jan 27

BOI6:23 amBoise Air Term. Gowen Fld

7h 15m

1 stop

ORD2:38 pmChicago O'Hare Intl

Feb 19

ORD3:54 pmChicago O'Hare Intl

7h 46m

1 stop

BOI10:40 pmBoise Air Term. Gowen Fld

$228

Find similar

Alaska Airlines

Jan 20

BOI5:40 amBoise Air Term. Gowen Fld

6h 30m

1 stop

ORD1:10 pmChicago O'Hare Intl

Jan 24

ORD8:00 amChicago O'Hare Intl

8h 10m

1 stop

BOI3:10 pmBoise Air Term. Gowen Fld

$248

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

dom. 1/11

12:07 pm-10:02 am

1 stop20h 55m

Lambert-St Louis

sáb. 1/17

3:43 pm-1:16 pm

1 stop22h 33m

$148

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

jue. 2/19

12:28 pm-11:14 pm

1 stop9h 46m

Chicago O'Hare Intl

sáb. 2/21

7:55 am-11:03 am

2 stops28h 08m

$186

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

vie. 1/9

8:15 am-1:03 pm

Nonstop3h 48m

Chicago O'Hare Intl

mar. 1/13

9:15 am-12:39 pm

Nonstop4h 24m

$249

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

jue. 1/8

10:39 am-9:35 pm

2 stops9h 56m

Lambert-St Louis

jue. 1/15

6:10 am-4:17 pm

2 stops11h 07m

$256

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

vie. 1/9

5:30 am-1:09 pm

1 stop6h 39m

Chicago Midway

vie. 1/16

1:49 pm-8:55 pm

1 stop8h 06m

$269

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

mar. 1/20

1:30 pm-7:55 pm

1 stop5h 25m

Chicago Midway

jue. 2/5

5:40 am-10:20 am

1 stop5h 40m

$292

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

lun. 1/12

3:35 pm-10:40 pm

1 stop6h 05m

Chicago Midway

jue. 1/15

7:50 am-2:45 pm

1 stop7h 55m

$299

BoisePeoria

BOI - PIA

BOIPIA

Boise Air Term. Gowen Fld

sáb. 2/7

7:05 pm-10:10 am

2 stops14h 05m

Greater Peoria

mié. 2/11

8:35 am-1:35 pm

1 stop6h 00m

$354

BoiseBloomington

BOI - BMI

BOIBMI

Boise Air Term. Gowen Fld

mar. 1/6

1:58 pm-10:16 pm

1 stop7h 18m

Bloomington-Normal

mar. 1/13

8:50 am-1:53 pm

1 stop6h 03m

$463

BoiseBloomington

BOI - BMI

BOIBMI

Boise Air Term. Gowen Fld

mar. 1/6

6:41 am-10:16 pm

2 stops14h 35m

Bloomington-Normal

mar. 1/13

6:29 am-1:08 pm

1 stop7h 39m

$511

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Boise to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Boise is in February. Flight prices, which tend to average around $323, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $324.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Boise to Illinois is on a Thursday when prices can be found for as low as $469. Flights from Boise to Illinois on a Sunday will generally be more expensive and average around $780. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Boise to Illinois during this time can be as low as $434. Flights in the morning are often more expensive with an average ticket price of $676.

What is the cheapest Boise Air Term. Gowen Fld to Illinois flight route?

Fly from Boise Air Term. Gowen Fld to Chicago O'Hare Intl for the best Boise Air Term. Gowen Fld - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $381 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Boise for as low as $267 on momondo.

What cabin class options are available on Boise Air Term. Gowen Fld to Illinois flights?

There are 4 cabin classes available to choose from on Boise Air Term. Gowen Fld to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boise to Illinois flights?

You could potentially save up to 33% on your flight if you consider stops on a Boise to Illinois flight.

Cheap Boise to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Illinois

Best Price Found	$315
Fastest flight time	3h 20m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Boise in the past 72 hours is $315. The best round-trip flight deal from Boise to Illinois found on momondo in the last 72 hours is $445.

The fastest flight from Boise to Illinois takes 3h 20m

Direct flights go from Boise to Illinois every day.

There are 98 airports in Illinois. From Boise there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Illinois?
Prices for flights from Boise Air Term. Gowen Fld Airport to Illinois were last updated today.
How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Illinois?
As of December 2025, there are 5 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Illinois.
How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Boise to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boise to Illinois is Embraer 175 (Enhanced Winglets) (25.51% of total bookings). The next most popular plane models are Airbus A320-100/200 (19.39%), Embraer 175 (17.69%), and Airbus A319 (17.35%).

Best airlines flying from Boise to Illinois

Compare and see reviews for airlines that fly from Boise to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $134	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Alaska Airlines	PriceFrom $224	Free Cancellation	Rating 8.0 11,432 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Southwest	PriceFrom $233	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $261	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boise to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boise to Illinois with flexible booking policies on momondo?

Flights from Boise to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boise to Illinois?

Once all potential Boise to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boise to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boise to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Illinois trip

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sáb. 1/10

sáb. 1/17

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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $34

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $49

Flights to Orlandofrom $41

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $49

Flights to Bostonfrom $55

Flights to Atlantafrom $49

Flights to Dallasfrom $52

Flights to Seattlefrom $58

Boise flight routes

Flights from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl

Flights from Boise Air Term. Gowen Fld to Bozeman Gallatin Field

Flights from Boise Air Term. Gowen Fld to Spokane

Flights from Boise Air Term. Gowen Fld to Ontario

Flights from Boise Air Term. Gowen Fld to Portland

Flights from Boise Air Term. Gowen Fld to Las Vegas Harry Reid Intl

Cheap flights from Boise to Illinois from $83

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Illinois departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Delta flights from Boise to Illinois

Our best Delta deals on Boise to Illinois flight tickets

Alaska Airlines flights from Boise to Illinois

Our best Alaska Airlines deals on Boise to Illinois flight tickets

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Use the filters below to find and compare flights from Boise to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Boise to Illinois

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Boise to Illinois during this time can be as low as $434. Flights in the morning are often more expensive with an average ticket price of $676.

What is the cheapest Boise Air Term. Gowen Fld to Illinois flight route?

Fly from Boise Air Term. Gowen Fld to Chicago O'Hare Intl for the best Boise Air Term. Gowen Fld - Illinois flight prices

How far in advance should I book a flight to Illinois?

What cabin class options are available on Boise Air Term. Gowen Fld to Illinois flights?

There are 4 cabin classes available to choose from on Boise Air Term. Gowen Fld to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boise to Illinois flights?

You could potentially save up to 33% on your flight if you consider stops on a Boise to Illinois flight.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Illinois?

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Boise Air Term. Gowen Fld to Illinois

What airlines fly to Illinois?

How many flights depart from Boise to Illinois on average per day?

7 flights are operational daily from Boise to Illinois as of December 2025. The most popular departure time for this route is 12:00PM, with 60% of flights per day taking off in the afternoon.

How many flights depart from Boise to Illinois on average per week?

As of December 2025, 52 flights take off from Boise and land in Illinois each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.

Cheap Boise to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Illinois?

How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Illinois?

How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Boise to Illinois?

Best airlines flying from Boise to Illinois

Compare and see reviews for airlines that fly from Boise to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Illinois?

Can I find flights from Boise to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Boise to Illinois?

I’m not ready to book a flight from Boise to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo