What is the cheapest airline that flies from Illinois to Billings Logan Intl?

Alaska Airlines, Delta, and American Airlines are the most popular carriers operating from Illinois to Billings Logan Intl

What airlines fly to Billings?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Billings from Illinois according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Billings. Keep in mind that there are 3 different airlines that fly to Billings on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, 4 flights take off from Illinois and land in Billings each day. The most common flight departure time for this route is 8:00PM, with 50% of daily flights taking off at noon.

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

As of September 2025, 28 flights take off from Illinois and land in Billings each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long does it take to fly to Billings?

The flight from Illinois to Billings depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Billings (the most popular airport in Billings), then the flight time is 4h 08m on average. If you fly from Moline (another popular airport in Illinois) to Billings, then the average flight time is 5h 46m.

When did momondo last update prices for flights from Illinois to Billings Logan Intl Airport?

Prices for flights from Illinois to Billings Logan Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Illinois to Billings Logan Intl Airport?

As of September 2025, there are 3 operators available to choose from for flights from Illinois to Billings Logan Intl Airport.

How old do you have to be to fly from Illinois to Billings Logan Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Billings Logan Intl Airport.

What documentation or ID do you need to fly to Billings Logan Intl Airport?

The travel and health documents you'll need for your trip to Billings Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Billings Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$138 Cheap Flights from Illinois to Billings in 2025/26

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Find the cheapest flights from Illinois to Billings

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:55 am - 11:16 amORD-BIL

3h 21mnonstop

11:58 am - 3:58 pmBIL-ORD

3h 00mnonstop

$229United Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

8:55 am - 11:16 amORD-BIL

3h 21mnonstop

5:54 pm - 11:59 pmBIL-ORD

5h 05m1 stop

$239United Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

1:29 pm - 11:24 pmORD-BIL

10h 55m2 stops

6:25 am - 11:37 amBIL-ORD

4h 12m1 stop

$254Delta

Find Deal

Wed, Nov 12 - Sat, Nov 15

6:45 pm - 10:50 pmMDW-BIL

5h 05m1 stop

6:15 am - 6:34 pmBIL-MDW

11h 19m2 stops

$254Delta

Find Deal

Sat, Feb 21 - Sat, Feb 28

9:40 am - 11:50 amORD-BIL

3h 10mnonstop

12:20 pm - 4:17 pmBIL-ORD

2h 57mnonstop

$271American Airlines

Find Deal

Tue, Oct 21 - Thu, Oct 23

9:40 am - 11:50 amORD-BIL

3h 10mnonstop

12:20 pm - 4:17 pmBIL-ORD

2h 57mnonstop

$294American Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

10:05 am - 6:35 pmORD-BIL

9h 30m1 stop

7:15 pm - 6:24 amBIL-ORD

10h 09m1 stop

$362Alaska Airlines

Find Deal

Tue, Oct 21 - Thu, Oct 23

1:14 pm - 9:24 amORD-BIL

21h 10m2 stops

9:35 pm - 12:17 amBIL-ORD

25h 42m1 stop

$377Multiple Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

6:00 am - 12:07 amORD-BIL

19h 07m1 stop

2:00 pm - 12:24 amBIL-ORD

9h 24m1 stop

$388Alaska Airlines

Find Deal

Sun, Oct 26 - Tue, Oct 28

7:52 pm - 8:45 pmSTL-BIL

25h 53m2 stops

9:35 pm - 11:43 amBIL-STL

13h 08m1 stop

$401Multiple Airlines

Find Deal

Wed, Oct 8 - Sun, Oct 12

Delta flights from Illinois to Billings

Our best Delta deals on Illinois to Billings flight tickets

Delta

Nov 12

ORD1:29 pmChicago O'Hare Intl

10h 55m

2 stops

BIL11:24 pmBillings Logan Intl

Nov 15

BIL6:25 amBillings Logan Intl

4h 12m

1 stop

ORD11:37 amChicago O'Hare Intl

$254

Find similar

Delta

Nov 12

ORD1:29 pmChicago O'Hare Intl

10h 55m

2 stops

BIL11:24 pmBillings Logan Intl

Nov 15

BIL6:25 amBillings Logan Intl

11h 26m

2 stops

ORD6:51 pmChicago O'Hare Intl

$259

Find similar

Delta

Oct 11

MDW3:00 pmChicago Midway

5h 42m

1 stop

BIL7:42 pmBillings Logan Intl

Oct 18

BIL6:25 amBillings Logan Intl

5h 43m

1 stop

MDW1:08 pmChicago Midway

$264

Find similar

American Airlines flights from Illinois to Billings

Our best American Airlines deals on Illinois to Billings flight tickets

American Airlines

Oct 21

ORD9:40 amChicago O'Hare Intl

3h 10m

BIL11:50 amBillings Logan Intl

Oct 23

BIL12:20 pmBillings Logan Intl

2h 57m

ORD4:17 pmChicago O'Hare Intl

$271

Find similar

American Airlines

Oct 10

ORD9:40 amChicago O'Hare Intl

3h 10m

BIL11:50 amBillings Logan Intl

Oct 13

BIL12:20 pmBillings Logan Intl

2h 57m

ORD4:17 pmChicago O'Hare Intl

$294

Find similar

American Airlines

Nov 12

ORD5:18 amChicago O'Hare Intl

9h 12m

1 stop

BIL1:30 pmBillings Logan Intl

Nov 15

BIL2:00 pmBillings Logan Intl

8h 37m

1 stop

ORD11:37 pmChicago O'Hare Intl

$295

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 10/16

8:55 am-11:16 am

Nonstop3h 21m

Billings Logan Intl

Sun 10/19

11:58 am-3:58 pm

Nonstop3h 00m

$229

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 10/16

8:55 am-11:16 am

Nonstop3h 21m

Billings Logan Intl

Sun 10/19

5:54 pm-11:59 pm

1 stop5h 05m

$239

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 11/12

1:29 pm-11:24 pm

2 stops10h 55m

Billings Logan Intl

Sat 11/15

6:25 am-11:37 am

1 stop4h 12m

$254

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Sat 2/21

6:45 pm-10:50 pm

1 stop5h 05m

Billings Logan Intl

Sat 2/28

6:15 am-6:34 pm

2 stops11h 19m

$254

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 10/21

9:40 am-11:50 am

Nonstop3h 10m

Billings Logan Intl

Thu 10/23

12:20 pm-4:17 pm

Nonstop2h 57m

$271

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Fri 10/10

9:40 am-11:50 am

Nonstop3h 10m

Billings Logan Intl

Mon 10/13

12:20 pm-4:17 pm

Nonstop2h 57m

$294

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 10/21

10:05 am-6:35 pm

1 stop9h 30m

Billings Logan Intl

Thu 10/23

7:15 pm-6:24 am

1 stop10h 09m

$362

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 10/16

1:14 pm-9:24 am

2 stops21h 10m

Billings Logan Intl

Sun 10/19

9:35 pm-12:17 am

1 stop25h 42m

$377

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sun 10/26

6:00 am-12:07 am

1 stop19h 07m

Billings Logan Intl

Tue 10/28

2:00 pm-12:24 am

1 stop9h 24m

$388

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Wed 10/8

7:52 pm-8:45 pm

2 stops25h 53m

Billings Logan Intl

Sun 10/12

9:35 pm-11:43 am

1 stop13h 08m

$401

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 Illinois to Billings

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 Billings?

The month of August is, on average, the cheapest month to fly to Billings from Illinois, with most prices found around $290. The month of October is another great option to travel to Billings, with average flight prices from Illinois averaging around $329.

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

Our data shows that Monday is the least expensive day to fly to Billings. Tickets to fly out on this day can be as low as $294. Flights from Illinois to Billings on a Sunday will generally be more expensive and average around $497. 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 Billings?

According to our data, the cheapest time of day to fly to Billings is in the evening. momondo users have found flights departing from Illinois to Billings in the evening for as low as $304. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Billings, so prices are often more expensive at around $628 per ticket.

What is the cheapest Illinois to Billings Logan Intl flight route?

Fly from Chicago O'Hare Intl to Billings Logan Intl for the best Illinois - Billings Logan Intl flight prices

What cabin class options are available on Illinois to Billings Logan Intl flights?

There are 3 cabin classes available to choose from on Illinois to Billings Logan Intl 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 Illinois to Billings flights?

You could potentially save up to 29% on your flight if you consider stops on a Illinois to Billings flight.

Cheap Illinois to Billings flight deals and tips

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

Best Price Found	$323
Fastest flight time	3h 00m
Direct flights	Every day
Airports in Billings	1 airport

The best one-way flight to Billings from Illinois in the past 72 hours is $323. The best round-trip flight deal from Illinois to Billings found on momondo in the last 72 hours is $229.

The fastest flight from Illinois to Billings takes 3h 00m

Direct flights go from Illinois to Billings every day.

There is 1 airport near Billings: Billings Logan Intl (BIL)

Search flight deals

When did momondo last update prices for flights from Illinois to Billings Logan Intl Airport?
Prices for flights from Illinois to Billings Logan Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Billings Logan Intl Airport?
As of September 2025, there are 3 operators available to choose from for flights from Illinois to Billings Logan Intl Airport.
How old do you have to be to fly from Illinois to Billings Logan Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Billings Logan Intl Airport.
What documentation or ID do you need to fly to Billings Logan Intl Airport?
The travel and health documents you'll need for your trip to Billings Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Billings Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Billings?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Billings is Embraer 175 (Enhanced Winglets), representing 34.53% of all bookings. The subsequent popular models are Embraer 175 at 33.81%, Embraer 170 at 30.22%, and Boeing 737 MAX 9 at 0.72%.

Best airlines flying from Illinois to Billings

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $225	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $248	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
United Airlines	PriceFrom $299	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights

Forsyth

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Billings. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Billings from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

If you are simply researching potential flights to Billings, momondo offers a useful price alert feature which will track prices for flights to Billings from Illinois and alert you when they change.

An easier way to manage your Billings 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.

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Cheap flights from Illinois to Billings from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Billings departing on 10/23. 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

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Find the cheapest flights from Illinois to Billings

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Illinois to Billings

Our best Delta deals on Illinois to Billings flight tickets

American Airlines flights from Illinois to Billings

Our best American Airlines deals on Illinois to Billings flight tickets

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

See travel insights to Billings from

How to get the cheapest flight ticket from Illinois to Billings

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

What is the cheapest month to fly to Billings?

The month of August is, on average, the cheapest month to fly to Billings from Illinois, with most prices found around $290. The month of October is another great option to travel to Billings, with average flight prices from Illinois averaging around $329.

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

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

What is the cheapest Illinois to Billings Logan Intl flight route?

Fly from Chicago O'Hare Intl to Billings Logan Intl for the best Illinois - Billings Logan Intl flight prices

What cabin class options are available on Illinois to Billings Logan Intl flights?

There are 3 cabin classes available to choose from on Illinois to Billings Logan Intl 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 Illinois to Billings flights?

You could potentially save up to 29% on your flight if you consider stops on a Illinois to Billings flight.

What is the cheapest airline that flies from Illinois to Billings Logan Intl?

Alaska Airlines, Delta, and American Airlines are the most popular carriers operating from Illinois to Billings Logan Intl

What airlines fly to Billings?

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

As of September 2025, 4 flights take off from Illinois and land in Billings each day. The most common flight departure time for this route is 8:00PM, with 50% of daily flights taking off at noon.

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

As of September 2025, 28 flights take off from Illinois and land in Billings each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long does it take to fly to Billings?

Cheap Illinois to Billings flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Billings

When did momondo last update prices for flights from Illinois to Billings Logan Intl Airport?

How many operators does momondo search for flights from Illinois to Billings Logan Intl Airport?

How old do you have to be to fly from Illinois to Billings Logan Intl Airport?

What documentation or ID do you need to fly to Billings Logan Intl Airport?

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

Best airlines flying from Illinois to Billings

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

Traveling to a place near Billings?

Why use momondo?

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

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

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

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

An easier way to manage your Billings 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 the United States

Airports servicing Montana