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

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

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

As of June 2026, 6 flights take off from Billings and land in Illinois each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

What airlines fly to Illinois?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Illinois from Billings according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Billings Logan Intl Airport to Illinois are updated daily.

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

As of June 2026, there are 3 operators available to choose from for flights from Billings Logan Intl Airport to Illinois.

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

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 Billings Logan Intl Airport to Illinois.

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

The travel and health documents required for your trip to Illinois 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 Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$186 Cheap Flights from Billings to Illinois in 2026

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Find the cheapest flights from Billings to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:24 am - 1:09 pm

BIL

MDW

5h 45m

1 stop

1:49 pm - 7:59 pm

MDW

BIL

7h 10m

1 stop

$271Delta

Sat, Jul 11 - Sat, Jul 25

12:57 pm - 9:47 pm

BIL

ORD

7h 50m

1 stop

6:24 pm - 11:11 pm

ORD

BIL

5h 47m

1 stop

$271Delta

Sat, Sep 19 - Tue, Sep 22

6:25 am - 1:07 pm

BIL

MDW

5h 42m

1 stop

1:14 pm - 10:24 pm

MDW

BIL

10h 10m

2 stops

$276Delta

Sat, Sep 19 - Tue, Sep 22

6:00 pm - 12:44 am

BIL

ORD

5h 44m

1 stop

5:00 am - 9:35 am

ORD

BIL

5h 35m

1 stop

$291United Airlines

Sat, Jul 11 - Sat, Jul 25

12:28 pm - 4:30 pm

BIL

ORD

3h 02mnonstop

9:41 am - 11:57 am

ORD

BIL

3h 16mnonstop

$299American Airlines

Sat, Sep 19 - Tue, Sep 22

1:13 pm - 11:30 pm

BIL

ORD

9h 17m

1 stop

9:41 am - 11:57 am

ORD

BIL

3h 16mnonstop

$309American Airlines

Sat, Sep 26 - Wed, Sep 30

12:28 pm - 4:30 pm

BIL

ORD

3h 02mnonstop

9:41 am - 11:57 am

ORD

BIL

3h 16mnonstop

$330American Airlines

Sat, Sep 19 - Mon, Sep 21

6:00 pm - 11:57 pm

BIL

STL

4h 57m

1 stop

5:10 am - 9:36 am

STL

BIL

5h 26m

1 stop

$381United Airlines

Wed, Jul 8 - Wed, Jul 22

5:00 am - 12:40 pm

BIL

STL

6h 40m

1 stop

4:40 pm - 9:00 pm

STL

BIL

5h 20m

1 stop

$409United Airlines

Sat, Sep 19 - Tue, Sep 22

12:49 pm - 11:59 pm

BIL

EVV

10h 10m

1 stop

5:14 pm - 11:13 pm

EVV

BIL

6h 59m

1 stop

$745American Airlines

Thu, Jul 2 - Tue, Jul 7

Delta flights from Billings to Illinois

Our best Delta deals on Billings to Illinois flight tickets

Delta

Sep 19

BIL12:57 pmBillings Logan Intl

7h 50m

1 stop

ORD9:47 pmChicago O'Hare Intl

Sep 22

ORD6:24 pmChicago O'Hare Intl

5h 47m

1 stop

BIL11:11 pmBillings Logan Intl

$271

Delta

Sep 19

BIL5:45 amBillings Logan Intl

5h 10m

1 stop

ORD11:55 amChicago O'Hare Intl

Sep 22

ORD2:00 pmChicago O'Hare Intl

9h 24m

2 stops

BIL10:24 pmBillings Logan Intl

$276

Delta

Jul 22

BIL6:24 amBillings Logan Intl

7h 41m

1 stop

ORD3:05 pmChicago O'Hare Intl

Jul 28

ORD5:54 pmChicago O'Hare Intl

6h 36m

1 stop

BIL11:30 pmBillings Logan Intl

$302

United Airlines flights from Billings to Illinois

Our best United Airlines deals on Billings to Illinois flight tickets

United Airlines

Jul 11

BIL6:00 pmBillings Logan Intl

5h 44m

1 stop

ORD12:44 amChicago O'Hare Intl

Jul 25

ORD5:00 amChicago O'Hare Intl

5h 35m

1 stop

BIL9:35 amBillings Logan Intl

$291

United Airlines

Aug 21

BIL4:40 pmBillings Logan Intl

6h 19m

1 stop

ORD11:59 pmChicago O'Hare Intl

Aug 24

ORD5:00 amChicago O'Hare Intl

5h 41m

1 stop

BIL9:41 amBillings Logan Intl

$362

United Airlines

Sep 4

BIL4:40 pmBillings Logan Intl

6h 19m

1 stop

ORD11:59 pmChicago O'Hare Intl

Sep 7

ORD5:00 amChicago O'Hare Intl

5h 41m

1 stop

BIL9:41 amBillings Logan Intl

$367

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Sat 7/11

6:24 am-1:09 pm

1 stop5h 45m

Chicago Midway

Sat 7/25

1:49 pm-7:59 pm

1 stop7h 10m

$271

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 9/19

12:57 pm-9:47 pm

1 stop7h 50m

Chicago O'Hare Intl

Tue 9/22

6:24 pm-11:11 pm

1 stop5h 47m

$271

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Sat 9/19

6:25 am-1:07 pm

1 stop5h 42m

Chicago Midway

Tue 9/22

1:14 pm-10:24 pm

2 stops10h 10m

$276

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 7/11

6:00 pm-12:44 am

1 stop5h 44m

Chicago O'Hare Intl

Sat 7/25

5:00 am-9:35 am

1 stop5h 35m

$291

Quickest round-trip

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 9/19

12:28 pm-4:30 pm

Nonstop3h 02m

Chicago O'Hare Intl

Tue 9/22

9:41 am-11:57 am

Nonstop3h 16m

$299

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 9/26

1:13 pm-11:30 pm

1 stop9h 17m

Chicago O'Hare Intl

Wed 9/30

9:41 am-11:57 am

Nonstop3h 16m

$309

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 9/19

12:28 pm-4:30 pm

Nonstop3h 02m

Chicago O'Hare Intl

Mon 9/21

9:41 am-11:57 am

Nonstop3h 16m

$330

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Wed 7/8

6:00 pm-11:57 pm

1 stop4h 57m

Lambert-St Louis

Wed 7/22

5:10 am-9:36 am

1 stop5h 26m

$381

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Sat 9/19

5:00 am-12:40 pm

1 stop6h 40m

Lambert-St Louis

Tue 9/22

4:40 pm-9:00 pm

1 stop5h 20m

$409

BillingsEvansville

BIL - EVV

BILEVV

Billings Logan Intl

Thu 7/2

12:49 pm-11:59 pm

1 stop10h 10m

Evansville Dress Regional

Tue 7/7

5:14 pm-11:13 pm

1 stop6h 59m

$745

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 Billings 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

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Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Billings is in July. Flight prices, which tend to average around $191, 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 July, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $210.

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

The cheapest day to depart from Billings to Illinois is on a Thursday when prices can be found for as low as $415. Flights from Billings to Illinois on a Monday will generally be more expensive and average around $614. 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 in the morning. Flights from Billings to Illinois during this time can be as low as $486. Flights at noon are often more expensive with an average ticket price of $505.

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

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

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

There are 4 cabin classes available to choose from on Billings 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 Billings to Illinois flights?

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

Cheap Billings to Illinois flight deals and tips

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

Best Price Found	$317
Fastest flight time	3h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Billings in the past 72 hours is $317. The best round-trip flight deal from Billings to Illinois found on momondo in the last 72 hours is $452.

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

Direct flights go from Billings to Illinois every day.

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

Search flight deals

Frequently asked questions about flying from Billings to Illinois

When did momondo last update prices for flights from Billings Logan Intl Airport to Illinois?
Prices for flights from Billings Logan Intl Airport to Illinois are updated daily.
How many operators does momondo search for flights from Billings Logan Intl Airport to Illinois?
As of June 2026, there are 3 operators available to choose from for flights from Billings Logan Intl Airport to Illinois.
How old do you have to be to fly from Billings Logan Intl Airport to Illinois?
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 Billings Logan Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois 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 Illinois. 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 Billings to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Billings to Illinois is Embraer 175 (45.45% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (30.30%), Boeing 737 MAX 8 (9.09%), and Embraer 170 (9.09%).

Best airlines flying from Billings to Illinois

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $210	Free Cancellation	Rating 7.9 8,398 reviews	Search Delta flights
American Airlines	PriceFrom $225	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
United Airlines	PriceFrom $249	Free Cancellation	Rating 7.4 9,771 reviews	Search United Airlines flights

Why use momondo?

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

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

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

Flights from Billings 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 Billings to Illinois?

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

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

Price alerts on flights to Illinois from Billings are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular cities in Illinois

Flights to New Yorkfrom $60

Flights to Los Angelesfrom $77

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Flights to Chicagofrom $64

Flights to San Franciscofrom $66

Flights to Las Vegasfrom $66

Flights to Washington, D.C.from $50

Flights to Bostonfrom $66

Flights to Atlantafrom $50

Flights to Fort Lauderdalefrom $59

Flights to Dallasfrom $63

Cheap flights from Billings to Illinois from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Billings to Illinois departing on 9/8. 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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Delta flights from Billings to Illinois

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How to get the cheapest flight ticket from Billings 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?

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

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

Can stopping save me money on Billings to Illinois flights?

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

What airlines fly to Illinois?

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

Cheap Billings to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from Billings to Illinois

Best airlines flying from Billings to Illinois

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

Why use momondo?

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

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