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

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

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

As of April 2026, there are 3 flights per day flying from Chicago to Montana. The most common time of day flights depart is 7:00PM, with 57% of flights taking off at noon.

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.

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

22 flights are operational weekly from Chicago to Montana as of April 2026. The most popular departure day for this route is Wed, with 18% of flights per week taking off on this day.

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 April 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.

$109 Cheap Flights from Chicago to Montana in 2026

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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.

3:27 pm - 9:45 am

ORD

BZN

43h 18m

2 stops

12:09 pm - 5:53 pm

BZN

ORD

28h 44m

1 stop

$247Multiple Airlines

Wed, Apr 22 - Fri, May 1

8:58 pm - 9:35 am

ORD

BZN

13h 37m

1 stop

12:09 pm - 5:53 pm

BZN

ORD

28h 44m

1 stop

$257Multiple Airlines

Wed, Apr 22 - Fri, May 1

7:00 am - 1:24 pm

ORD

BZN

7h 24m

1 stop

7:25 pm - 7:00 am

BZN

ORD

10h 35m

1 stop

$265Alaska Airlines

Thu, Sep 24 - Mon, Oct 5

9:55 am - 11:58 am

ORD

BIL

3h 03mnonstop

6:00 am - 9:51 am

BIL

ORD

2h 51mnonstop

$270American Airlines

Thu, Sep 3 - Tue, Sep 8

3:55 pm - 8:02 pm

ORD

BIL

5h 07m

1 stop

5:18 am - 12:00 pm

BIL

ORD

5h 42m

1 stop

$271Delta

Sat, Jun 13 - Sat, Jun 20

9:55 am - 11:58 am

ORD

BIL

3h 03mnonstop

6:00 am - 9:51 am

BIL

ORD

2h 51mnonstop

$272American Airlines

Thu, Sep 3 - Tue, Sep 8

1:15 pm - 10:37 pm

ORD

BIL

10h 22m

2 stops

5:45 am - 12:21 pm

BIL

ORD

5h 36m

1 stop

$276Delta

Sat, Sep 5 - Sat, Sep 12

9:10 am - 11:32 am

ORD

BZN

3h 22mnonstop

2:37 pm - 10:41 pm

BZN

ORD

7h 04m

1 stop

$291United Airlines

Wed, Aug 19 - Sat, Aug 22

8:40 am - 11:32 am

ORD

MSO

3h 52mnonstop

12:34 pm - 5:05 pm

MSO

ORD

3h 31mnonstop

$309United Airlines

Thu, May 28 - Mon, Jun 1

6:00 am - 12:18 pm

ORD

FCA

7h 18m

1 stop

8:21 pm - 6:22 am

FCA

ORD

9h 01m

1 stop

$329Alaska Airlines

Tue, Sep 22 - Sat, Sep 26

Southwest flights from Chicago to Montana

Our best Southwest deals on Chicago to Montana flight tickets

Southwest

Aug 19

MDW10:05 amChicago Midway

3h 10m

BZN12:15 pmBozeman Gallatin Field

Aug 22

BZN7:10 amBozeman Gallatin Field

2h 55m

MDW11:05 amChicago Midway

$285

Southwest

Sep 3

MDW10:50 amChicago Midway

3h 05m

BZN12:55 pmBozeman Gallatin Field

Sep 10

BZN12:20 pmBozeman Gallatin Field

2h 55m

MDW4:15 pmChicago Midway

$295

Southwest

May 27

ORD4:50 pmChicago O'Hare Intl

8h 25m

1 stop

BZN12:15 amBozeman Gallatin Field

May 28

BZN6:15 amBozeman Gallatin Field

6h 40m

1 stop

ORD1:55 pmChicago O'Hare Intl

$300

American Airlines flights from Chicago to Montana

Our best American Airlines deals on Chicago to Montana flight tickets

American Airlines

Sep 3

ORD9:55 amChicago O'Hare Intl

3h 03m

BIL11:58 amBillings Logan Intl

Sep 8

BIL6:00 amBillings Logan Intl

2h 51m

ORD9:51 amChicago O'Hare Intl

$270

American Airlines

Sep 3

ORD9:55 amChicago O'Hare Intl

3h 03m

BIL11:58 amBillings Logan Intl

Sep 8

BIL6:00 amBillings Logan Intl

2h 51m

ORD9:51 amChicago O'Hare Intl

$272

American Airlines

Jul 11

ORD1:49 pmChicago O'Hare Intl

3h 19m

BZN4:08 pmBozeman Gallatin Field

Jul 18

BZN4:58 pmBozeman Gallatin Field

3h 31m

ORD9:29 pmChicago O'Hare Intl

$285

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 4/22

3:27 pm-9:45 am

2 stops43h 18m

Bozeman Gallatin Field

Fri 5/1

12:09 pm-5:53 pm

1 stop28h 44m

$247

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 4/22

8:58 pm-9:35 am

1 stop13h 37m

Bozeman Gallatin Field

Fri 5/1

12:09 pm-5:53 pm

1 stop28h 44m

$257

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Thu 9/24

7:00 am-1:24 pm

1 stop7h 24m

Bozeman Gallatin Field

Mon 10/5

7:25 pm-7:00 am

1 stop10h 35m

$265

Quickest round-trip

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 9/3

9:55 am-11:58 am

Nonstop3h 03m

Billings Logan Intl

Tue 9/8

6:00 am-9:51 am

Nonstop2h 51m

$270

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 6/13

3:55 pm-8:02 pm

1 stop5h 07m

Billings Logan Intl

Sat 6/20

5:18 am-12:00 pm

1 stop5h 42m

$271

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 9/3

9:55 am-11:58 am

Nonstop3h 03m

Billings Logan Intl

Tue 9/8

6:00 am-9:51 am

Nonstop2h 51m

$272

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 9/5

1:15 pm-10:37 pm

2 stops10h 22m

Billings Logan Intl

Sat 9/12

5:45 am-12:21 pm

1 stop5h 36m

$276

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 8/19

9:10 am-11:32 am

Nonstop3h 22m

Bozeman Gallatin Field

Sat 8/22

2:37 pm-10:41 pm

1 stop7h 04m

$291

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Thu 5/28

8:40 am-11:32 am

Nonstop3h 52m

Missoula Johnson-Bell Field

Mon 6/1

12:34 pm-5:05 pm

Nonstop3h 31m

$309

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Tue 9/22

6:00 am-12:18 pm

1 stop7h 18m

Kalispell Glacier Park

Sat 9/26

8:21 pm-6:22 am

1 stop9h 01m

$329

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 January. Flight prices, which tend to average around $309, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Montana, with average flight prices from Chicago averaging around $309.

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 $311. The most expensive day to fly to Montana is Thursday, with ticket prices averaging around $366.

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 $308. In the afternoon is when there is more demand to fly to Montana, so prices are often more expensive at around $391 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 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 $371 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 $287 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 22% 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	$182
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 $182. The best round-trip flight deal from Chicago to Montana found on momondo in the last 72 hours is $309.

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 April 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 38.80% of the total bookings. Other popular models include Boeing 737 MAX 8 with 19.54%, Airbus A319 with 10.38%, and Embraer 175 (Enhanced Winglets) with 9.27%.

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
American Airlines	PriceFrom $210	Free Cancellation	Rating 7.1 11,564 reviews	Search American Airlines flights
Southwest	PriceFrom $210	Free Cancellation	Rating 8.0 4,334 reviews	Search Southwest flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 8,398 reviews	Search Delta flights
Alaska Airlines	PriceFrom $226	Free Cancellation	Rating 7.9 12,207 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 9,562 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.

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Flights to Las Vegasfrom $45

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Flights to Bostonfrom $69

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Flights to Dallasfrom $59

Flights to Fort Lauderdalefrom $49

Cheap flights from Chicago to Montana from $109

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 5/5. 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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Southwest flights from Chicago to Montana

Our best Southwest deals on Chicago to Montana flight tickets

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Our best American Airlines deals on Chicago to Montana flight tickets

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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 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

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