How many flights depart from Chicago to Montana on average per week?

109 flights are operational weekly from Chicago to Montana as of May 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.

How many flights depart from Chicago to Montana on average per day?

As of May 2026, there are 15 flights per day flying from Chicago to Montana. The most common time of day flights depart is 1:00PM, with 46% of flights taking off at noon.

What is the cheapest airline that flies from Chicago to Montana?

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Chicago to Montana

What airlines fly to Montana?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Montana from Chicago according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 5 different airlines that fly to Montana on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Chicago to Montana?

Prices for flights from Chicago to Montana were last updated today.

How many operators does momondo search for flights from Chicago to Montana?

The number of operators available for flights from Chicago to Montana is 5 as of May 2026.

How old do you have to be to fly from Chicago to Montana?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Montana.

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

The travel and health documents required for your trip to Montana can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montana. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$133 Cheap Flights from Chicago to Montana in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to Montana

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 pm - 10:51 pm

ORD

BIL

6h 51m

1 stop

5:20 am - 11:59 am

BIL

ORD

5h 39m

1 stop

$271Delta

Sat, Jul 4 - Sat, Jul 11

5:00 pm - 10:51 pm

ORD

BIL

6h 51m

1 stop

5:20 am - 3:05 pm

BIL

ORD

8h 45m

2 stops

$276Delta

Sat, Jul 4 - Sat, Jul 11

1:55 pm - 10:51 pm

ORD

BIL

9h 56m

2 stops

5:20 am - 3:05 pm

BIL

ORD

8h 45m

2 stops

$281Delta

Sat, Jul 4 - Sat, Jul 11

5:00 am - 9:35 am

ORD

BIL

5h 35m

1 stop

6:00 pm - 12:44 am

BIL

ORD

5h 44m

1 stop

$286United Airlines

Sat, Jul 18 - Sat, Jul 25

5:00 am - 9:36 am

ORD

BIL

5h 36m

1 stop

6:00 pm - 12:44 am

BIL

ORD

5h 44m

1 stop

$291United Airlines

Wed, Jul 29 - Wed, Aug 5

5:00 am - 12:39 pm

ORD

BZN

8h 39m

1 stop

5:00 pm - 9:20 pm

BZN

ORD

3h 20mnonstop

$295American Airlines

Fri, Jun 19 - Sat, Jun 27

6:50 am - 1:25 pm

MDW

BZN

7h 35m

1 stop

2:00 pm - 7:45 pm

BZN

MDW

4h 45m

1 stop

$300Southwest

Wed, Aug 19 - Tue, Aug 25

5:45 am - 3:55 pm

MDW

BZN

11h 10m

1 stop

6:40 am - 10:30 am

BZN

MDW

2h 50mnonstop

$301Southwest

Mon, Jun 22 - Wed, Jun 24

9:47 am - 12:33 pm

ORD

FCA

3h 46mnonstop

4:40 pm - 9:35 pm

FCA

ORD

3h 55mnonstop

$309American Airlines

Tue, Aug 18 - Tue, Sep 1

9:00 am - 4:45 pm

ORD

GTF

8h 45m

1 stop

5:19 pm - 6:20 am

GTF

ORD

12h 01m

1 stop

$363Alaska Airlines

Sat, Sep 5 - Sun, Sep 13

Southwest flights from Chicago to Montana

Our best Southwest deals on Chicago to Montana flight tickets

Southwest

Aug 19

MDW6:50 amChicago Midway

7h 35m

1 stop

BZN1:25 pmBozeman Gallatin Field

Aug 25

BZN2:00 pmBozeman Gallatin Field

4h 45m

1 stop

MDW7:45 pmChicago Midway

$300

Southwest

Jun 22

MDW5:45 amChicago Midway

11h 10m

1 stop

BZN3:55 pmBozeman Gallatin Field

Jun 24

BZN6:40 amBozeman Gallatin Field

2h 50m

MDW10:30 amChicago Midway

$301

Southwest

Jul 21

MDW11:40 amChicago Midway

3h 10m

BZN1:50 pmBozeman Gallatin Field

Jul 28

BZN6:40 amBozeman Gallatin Field

2h 50m

MDW10:30 amChicago Midway

$311

American Airlines flights from Chicago to Montana

Our best American Airlines deals on Chicago to Montana flight tickets

American Airlines

Jun 19

ORD5:00 amChicago O'Hare Intl

8h 39m

1 stop

BZN12:39 pmBozeman Gallatin Field

Jun 27

BZN5:00 pmBozeman Gallatin Field

3h 20m

ORD9:20 pmChicago O'Hare Intl

$295

American Airlines

Aug 18

ORD9:47 amChicago O'Hare Intl

3h 46m

FCA12:33 pmKalispell Glacier Park

Sep 1

FCA4:40 pmKalispell Glacier Park

3h 55m

ORD9:35 pmChicago O'Hare Intl

$309

American Airlines

Aug 18

ORD5:00 amChicago O'Hare Intl

7h 36m

1 stop

FCA11:36 amKalispell Glacier Park

Sep 1

FCA4:40 pmKalispell Glacier Park

3h 55m

ORD9:35 pmChicago O'Hare Intl

$319

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 7/4

5:00 pm-10:51 pm

1 stop6h 51m

Billings Logan Intl

Sat 7/11

5:20 am-11:59 am

1 stop5h 39m

$271

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 7/4

5:00 pm-10:51 pm

1 stop6h 51m

Billings Logan Intl

Sat 7/11

5:20 am-3:05 pm

2 stops8h 45m

$276

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 7/4

1:55 pm-10:51 pm

2 stops9h 56m

Billings Logan Intl

Sat 7/11

5:20 am-3:05 pm

2 stops8h 45m

$281

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 7/18

5:00 am-9:35 am

1 stop5h 35m

Billings Logan Intl

Sat 7/25

6:00 pm-12:44 am

1 stop5h 44m

$286

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 7/29

5:00 am-9:36 am

1 stop5h 36m

Billings Logan Intl

Wed 8/5

6:00 pm-12:44 am

1 stop5h 44m

$291

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Fri 6/19

5:00 am-12:39 pm

1 stop8h 39m

Bozeman Gallatin Field

Sat 6/27

5:00 pm-9:20 pm

Nonstop3h 20m

$295

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Wed 8/19

6:50 am-1:25 pm

1 stop7h 35m

Bozeman Gallatin Field

Tue 8/25

2:00 pm-7:45 pm

1 stop4h 45m

$300

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Mon 6/22

5:45 am-3:55 pm

1 stop11h 10m

Bozeman Gallatin Field

Wed 6/24

6:40 am-10:30 am

Nonstop2h 50m

$301

Quickest round-trip

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Tue 8/18

9:47 am-12:33 pm

Nonstop3h 46m

Kalispell Glacier Park

Tue 9/1

4:40 pm-9:35 pm

Nonstop3h 55m

$309

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/5

9:00 am-4:45 pm

1 stop8h 45m

Great Falls

Sun 9/13

5:19 pm-6:20 am

1 stop12h 01m

$363

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago to Montana

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 Montana?

The cheapest month to fly to Montana from Chicago is in November. Flight prices, which tend to average around $133, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Montana, with average flight prices from Chicago averaging around $133.

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

Our data shows that Tuesday is the least expensive day to fly to Montana. Tickets to fly out on this day can be as low as $315. The most expensive day to fly to Montana is Thursday, with ticket prices averaging around $369.

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

The cheapest time of day to fly to Montana is at noon when flights can be purchased for as low as $321. In the afternoon is when there is more demand to fly to Montana, so prices are often more expensive at around $392 per ticket.

What is the cheapest Chicago to Montana flight route?

Fly from Chicago O'Hare Intl to Bozeman Gallatin Field for the best Chicago - Montana flight prices

How far in advance should I book a flight from Chicago to Montana?

You are more likely to see cheaper flights to Montana from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Montana for around $368 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montana from Chicago for as low as $321 on momondo.

What cabin class options are available on Chicago to Montana flights?

There are 4 cabin classes available to choose from on Chicago to Montana 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 Chicago to Montana flights?

You could potentially save up to 23% on your flight if you consider stops on a Chicago to Montana flight.

Cheap Chicago to Montana flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Montana

Best Price Found	$179
Fastest flight time	3h 05m
Direct flights	Every day
Airports in Montana	32 airports

The best one-way flight to Montana from Chicago in the past 72 hours is $179. The best round-trip flight deal from Chicago to Montana found on momondo in the last 72 hours is $339.

The fastest flight from Chicago to Montana takes 3h 05m

Direct flights go from Chicago to Montana every day.

There are 32 airports in Montana. From Chicago there are direct flights to Billings Logan Intl (BIL), Bozeman Gallatin Field (BZN).

Search flight deals

Frequently asked questions about flying from Chicago to Montana

When did momondo last update prices for flights from Chicago to Montana?
Prices for flights from Chicago to Montana were last updated today.
How many operators does momondo search for flights from Chicago to Montana?
The number of operators available for flights from Chicago to Montana is 5 as of May 2026.
How old do you have to be to fly from Chicago to Montana?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Montana.
What documentation or ID do you need to fly to Montana?
The travel and health documents required for your trip to Montana can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montana. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago to Montana?
Based on momondo bookings for flights between Chicago and Montana, the leading plane model is Boeing 737-800, making up 34.99% of the total bookings. Other popular models include Boeing 737 MAX 8 with 21.97%, Airbus A319 with 12.66%, and Embraer 175 with 7.77%.

Best airlines flying from Chicago to Montana

Compare and see reviews for airlines that fly from Chicago to Montana with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $210	Free Cancellation	Rating 7.9 4,277 reviews	Search Southwest flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 8,448 reviews	Search Delta flights
American Airlines	PriceFrom $217	Free Cancellation	Rating 7.1 11,648 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $226	Free Cancellation	Rating 7.9 12,400 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $229	Free Cancellation	Rating 7.4 9,752 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Montana?

Finding the right flight to Montana from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Montana quick and easy, saving you time and money.

Can I find flights from Chicago to Montana with flexible booking policies on momondo?

Flights from Chicago to Montana 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 Chicago to Montana?

momondo provides multiple filters to help you find the best flight to Montana from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Chicago to Montana now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Montana and let you know when they change.

An easier way to manage your Montana 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Mon 6/22

Mon 6/29

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Montana

Popular cities

Other flights from Chicago

Other flights to Montana

Airlines

Complete your trip

Feeling lucky

Popular cities in Montana

Flights to New Yorkfrom $65

Flights to Los Angelesfrom $48

Flights to Orlandofrom $58

Flights to Miamifrom $51

Flights to Chicagofrom $60

Flights to San Franciscofrom $67

Flights to Las Vegasfrom $42

Flights to Washington, D.C.from $57

Flights to Bostonfrom $63

Flights to Atlantafrom $51

Flights to Fort Lauderdalefrom $56

Flights to Dallasfrom $107

Cheap flights from Chicago to Montana from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Montana departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Montana

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Southwest flights from Chicago to Montana

Our best Southwest deals on Chicago to Montana flight tickets

American Airlines flights from Chicago to Montana

Our best American Airlines deals on Chicago to Montana flight tickets

momondo Fare Finder

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

See travel insights to Montana from

How to get the cheapest flight ticket from Chicago to Montana

What is the cheapest month to fly to Montana?

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

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

What is the cheapest Chicago to Montana flight route?

How far in advance should I book a flight from Chicago to Montana?

What cabin class options are available on Chicago to Montana flights?

Can stopping save me money on Chicago to Montana flights?

What is the cheapest airline that flies from Chicago to Montana?

What airlines fly to Montana?

How many flights depart from Chicago to Montana on average per day?

How many flights depart from Chicago to Montana on average per week?

Cheap Chicago to Montana flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Montana

Best Price Found

Fastest flight time

Direct flights

Airports in Montana

Frequently asked questions about flying from Chicago to Montana

Best airlines flying from Chicago to Montana

Compare and see reviews for airlines that fly from Chicago to Montana with momondo

Why use momondo?

An easier way to manage your Montana 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 Montana

Popular cities in Montana

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

Chicago flight routes

According to popular flight searches on momondo this year

Montana flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Montana

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Montana

Explore popular destinations other users love

According to popular flight searches on momondo this year