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

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

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 39% 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 April 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.

$133 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.

12:42 pm - 4:44 pm

BIL

ORD

3h 02mnonstop

9:45 am - 12:12 pm

ORD

BIL

3h 27mnonstop

$270American Airlines

Fri, May 29 - Tue, Jun 2

5:18 am - 4:59 pm

BIL

ORD

10h 41m

2 stops

3:50 pm - 10:37 pm

ORD

BIL

7h 47m

1 stop

$276Delta

Wed, Aug 5 - Wed, Aug 12

5:18 am - 4:23 pm

BIL

ORD

10h 05m

2 stops

9:30 am - 10:27 pm

ORD

BIL

13h 57m

2 stops

$281Delta

Wed, Aug 5 - Wed, Aug 12

6:00 am - 9:51 am

BIL

ORD

2h 51mnonstop

9:55 am - 11:58 am

ORD

BIL

3h 03mnonstop

$289American Airlines

Wed, Aug 5 - Wed, Aug 12

5:51 pm - 12:58 am

BIL

ORD

6h 07m

1 stop

5:00 am - 9:35 am

ORD

BIL

5h 35m

1 stop

$290United Airlines

Wed, May 20 - Mon, May 25

6:24 am - 1:09 pm

BIL

MDW

5h 45m

1 stop

7:06 pm - 11:20 pm

MDW

BIL

5h 14m

1 stop

$290Delta

Sat, Jul 11 - Tue, Jul 14

6:24 am - 6:25 pm

BIL

MDW

11h 01m

2 stops

7:06 pm - 11:20 pm

MDW

BIL

5h 14m

1 stop

$295Delta

Fri, Jul 10 - Tue, Jul 14

5:18 am - 5:02 pm

BIL

ORD

10h 44m

2 stops

6:14 pm - 11:37 pm

ORD

BIL

6h 23m

1 stop

$295Delta

Tue, Jun 30 - Sun, Jul 5

6:00 pm - 12:44 am

BIL

ORD

5h 44m

1 stop

7:57 pm - 10:20 pm

ORD

BIL

3h 23mnonstop

$304United Airlines

Wed, Jul 8 - Thu, Jul 16

3:40 pm - 1:03 pm

BIL

MLI

20h 23m

1 stop

12:31 pm - 9:14 am

MLI

BIL

21h 43m

1 stop

$334Allegiant Air

Sat, Jul 4 - Thu, Jul 9

American Airlines flights from Billings to Illinois

Our best American Airlines deals on Billings to Illinois flight tickets

American Airlines

May 29

BIL12:42 pmBillings Logan Intl

3h 02m

ORD4:44 pmChicago O'Hare Intl

Jun 2

ORD9:45 amChicago O'Hare Intl

3h 27m

BIL12:12 pmBillings Logan Intl

$270

American Airlines

Aug 5

BIL6:00 amBillings Logan Intl

2h 51m

ORD9:51 amChicago O'Hare Intl

Aug 12

ORD9:55 amChicago O'Hare Intl

3h 03m

BIL11:58 amBillings Logan Intl

$289

American Airlines

Aug 5

BIL12:28 pmBillings Logan Intl

2h 51m

ORD4:19 pmChicago O'Hare Intl

Aug 12

ORD9:55 amChicago O'Hare Intl

3h 03m

BIL11:58 amBillings Logan Intl

$318

United Airlines flights from Billings to Illinois

Our best United Airlines deals on Billings to Illinois flight tickets

United Airlines

May 20

BIL5:51 pmBillings Logan Intl

6h 07m

1 stop

ORD12:58 amChicago O'Hare Intl

May 25

ORD5:00 amChicago O'Hare Intl

5h 35m

1 stop

BIL9:35 amBillings Logan Intl

$290

United Airlines

Jul 8

BIL6:00 pmBillings Logan Intl

5h 44m

1 stop

ORD12:44 amChicago O'Hare Intl

Jul 16

ORD7:57 pmChicago O'Hare Intl

3h 23m

BIL10:20 pmBillings Logan Intl

$304

United Airlines

Oct 15

BIL5:57 pmBillings Logan Intl

5h 00m

1 stop

ORD11:57 pmChicago O'Hare Intl

Oct 21

ORD9:00 amChicago O'Hare Intl

3h 21m

BIL11:21 amBillings Logan Intl

$305

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Fri 5/29

12:42 pm-4:44 pm

Nonstop3h 02m

Chicago O'Hare Intl

Tue 6/2

9:45 am-12:12 pm

Nonstop3h 27m

$270

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 8/5

5:18 am-4:59 pm

2 stops10h 41m

Chicago O'Hare Intl

Wed 8/12

3:50 pm-10:37 pm

1 stop7h 47m

$276

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 8/5

5:18 am-4:23 pm

2 stops10h 05m

Chicago O'Hare Intl

Wed 8/12

9:30 am-10:27 pm

2 stops13h 57m

$281

Quickest round-trip

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 8/5

6:00 am-9:51 am

Nonstop2h 51m

Chicago O'Hare Intl

Wed 8/12

9:55 am-11:58 am

Nonstop3h 03m

$289

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 5/20

5:51 pm-12:58 am

1 stop6h 07m

Chicago O'Hare Intl

Mon 5/25

5:00 am-9:35 am

1 stop5h 35m

$290

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Sat 7/11

6:24 am-1:09 pm

1 stop5h 45m

Chicago Midway

Tue 7/14

7:06 pm-11:20 pm

1 stop5h 14m

$290

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Fri 7/10

6:24 am-6:25 pm

2 stops11h 01m

Chicago Midway

Tue 7/14

7:06 pm-11:20 pm

1 stop5h 14m

$295

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Tue 6/30

5:18 am-5:02 pm

2 stops10h 44m

Chicago O'Hare Intl

Sun 7/5

6:14 pm-11:37 pm

1 stop6h 23m

$295

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 7/8

6:00 pm-12:44 am

1 stop5h 44m

Chicago O'Hare Intl

Thu 7/16

7:57 pm-10:20 pm

Nonstop3h 23m

$304

BillingsMoline

BIL - MLI

BILMLI

Billings Logan Intl

Sat 7/4

3:40 pm-1:03 pm

1 stop20h 23m

Moline Quad-City

Thu 7/9

12:31 pm-9:14 am

1 stop21h 43m

$334

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

Airlines

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 $427. Flights from Billings to Illinois on a Sunday will generally be more expensive and average around $601. 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 $482. 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 Logan Intl to Illinois flights?

There are 4 cabin classes available to choose from on Billings Logan Intl 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?

No. A direct flight is the cheapest option for a flight between Billings to Illinois.

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	$260
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 $260. The best round-trip flight deal from Billings to Illinois found on momondo in the last 72 hours is $566.

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 April 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 (Enhanced Winglets) (32.00% of total bookings). The next most popular plane models are Embraer 175 (32.00%), Embraer 170 (16.00%), and Boeing 737 MAX 8 (12.00%).

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
American Airlines	PriceFrom $225	Free Cancellation	Rating 7.1 11,604 reviews	Search American Airlines flights
Delta	PriceFrom $230	Free Cancellation	Rating 7.9 8,424 reviews	Search Delta flights
United Airlines	PriceFrom $249	Free Cancellation	Rating 7.4 9,605 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.