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Cheap flights from Illinois to Billings from $152

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 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Billings

Cheap round-trip flights

American Airlines Logo
6:50 pm - 8:57 pmORD-BIL
3h 07mnonstop
American Airlines Logo
6:02 am - 9:55 amBIL-ORD
2h 53mnonstop
$229American Airlines
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Thu, Sep 4 - Tue, Sep 9
United Airlines Logo
2:53 pm - 8:49 pmORD-BIL
6h 56m1 stop
United Airlines Logo
11:58 am - 3:58 pmBIL-ORD
3h 00mnonstop
$239United Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 19
American Airlines Logo
6:50 pm - 8:57 pmORD-BIL
3h 07mnonstop
American Airlines Logo
12:19 pm - 4:13 pmBIL-ORD
2h 54mnonstop
$244American Airlines
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Thu, Sep 4 - Thu, Sep 11
Delta Logo
7:17 pm - 11:12 pmMDW-BIL
4h 55m1 stop
Delta Logo
6:25 am - 1:03 pmBIL-MDW
5h 38m1 stop
$249Delta
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Wed, Sep 3 - Wed, Sep 10
Delta Logo
1:43 pm - 10:47 pmMDW-BIL
10h 04m2 stops
Delta Logo
6:25 am - 1:03 pmBIL-MDW
5h 38m1 stop
$254Delta
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Wed, Sep 3 - Wed, Sep 10
Hawaiian Airlines Logo
10:00 am - 6:39 pmORD-BIL
9h 39m1 stop
Hawaiian Airlines Logo
2:00 pm - 12:24 amBIL-ORD
9h 24m1 stop
$270Hawaiian Airlines
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Wed, Nov 12 - Sat, Nov 15
Hawaiian Airlines Logo
8:00 am - 3:00 pmORD-BIL
8h 00m1 stop
Hawaiian Airlines Logo
2:00 pm - 12:24 amBIL-ORD
9h 24m1 stop
$292Hawaiian Airlines
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Sat, Nov 1 - Tue, Nov 4
Alaska Airlines Logo
7:00 am - 12:07 amORD-BIL
18h 07m2 stops
Alaska Airlines Logo
6:00 am - 12:24 amBIL-ORD
17h 24m1 stop
$308Alaska Airlines
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Sat, Nov 1 - Tue, Nov 4
Alaska Airlines Logo
8:20 am - 12:08 amORD-BIL
16h 48m2 stops
Alaska Airlines Logo
6:00 am - 9:40 pmBIL-ORD
14h 40m1 stop
$331Alaska Airlines
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Tue, Oct 21 - Tue, Oct 28
Logo
2:30 pm - 3:35 pmSTL-BIL
26h 05m3 stops
Logo
11:34 am - 4:35 pmBIL-STL
28h 01m3 stops
$562
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Thu, Aug 28 - Mon, Sep 1

United Airlines flights from Illinois to Billings

Our best United Airlines deals on Illinois to Billings flight tickets
United Airlines
Oct 15
ORD2:53 pmChicago O'Hare Intl
6h 56m
1 stop
BIL8:49 pmBillings Logan Intl
Oct 19
BIL11:58 amBillings Logan Intl
3h 00m
ORD3:58 pmChicago O'Hare Intl
$239
Find similar
United Airlines
Oct 21
ORD2:53 pmChicago O'Hare Intl
6h 56m
1 stop
BIL8:49 pmBillings Logan Intl
Oct 28
BIL7:00 amBillings Logan Intl
5h 15m
1 stop
ORD1:15 pmChicago O'Hare Intl
$249
Find similar
United Airlines
Aug 29
ORD8:55 amChicago O'Hare Intl
3h 21m
BIL11:16 amBillings Logan Intl
Sep 2
BIL5:53 pmBillings Logan Intl
5h 06m
1 stop
ORD11:59 pmChicago O'Hare Intl
$262
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Delta flights from Illinois to Billings

Our best Delta deals on Illinois to Billings flight tickets
Delta
Sep 3
MDW7:17 pmChicago Midway
4h 55m
1 stop
BIL11:12 pmBillings Logan Intl
Sep 10
BIL6:25 amBillings Logan Intl
5h 38m
1 stop
MDW1:03 pmChicago Midway
$249
Find similar
Delta
Sep 3
MDW1:43 pmChicago Midway
10h 04m
2 stops
BIL10:47 pmBillings Logan Intl
Sep 10
BIL6:25 amBillings Logan Intl
5h 38m
1 stop
MDW1:03 pmChicago Midway
$254
Find similar
Delta
Sep 2
ORD5:40 pmChicago O'Hare Intl
6h 32m
1 stop
BIL11:12 pmBillings Logan Intl
Sep 9
BIL6:25 amBillings Logan Intl
7h 35m
1 stop
ORD3:00 pmChicago O'Hare Intl
$264
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momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Billings that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 6, 2025.
Use the filters below to find and compare flights from Illinois to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 9/4

6:50 pm-8:57 pm

Nonstop3h 07m

Billings Logan Intl

Tue 9/9

6:02 am-9:55 am

Nonstop2h 53m

$229

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 10/15

2:53 pm-8:49 pm

1 stop6h 56m

Billings Logan Intl

Sun 10/19

11:58 am-3:58 pm

Nonstop3h 00m

$239

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 9/4

6:50 pm-8:57 pm

Nonstop3h 07m

Billings Logan Intl

Thu 9/11

12:19 pm-4:13 pm

Nonstop2h 54m

$244

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Wed 9/3

7:17 pm-11:12 pm

1 stop4h 55m

Billings Logan Intl

Wed 9/10

6:25 am-1:03 pm

1 stop5h 38m

$249

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Wed 9/3

1:43 pm-10:47 pm

2 stops10h 04m

Billings Logan Intl

Wed 9/10

6:25 am-1:03 pm

1 stop5h 38m

$254

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 11/12

10:00 am-6:39 pm

1 stop9h 39m

Billings Logan Intl

Sat 11/15

2:00 pm-12:24 am

1 stop9h 24m

$270

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 11/1

8:00 am-3:00 pm

1 stop8h 00m

Billings Logan Intl

Tue 11/4

2:00 pm-12:24 am

1 stop9h 24m

$292

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 11/1

7:00 am-12:07 am

2 stops18h 07m

Billings Logan Intl

Tue 11/4

6:00 am-12:24 am

1 stop17h 24m

$308

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 10/21

8:20 am-12:08 am

2 stops16h 48m

Billings Logan Intl

Tue 10/28

6:00 am-9:40 pm

1 stop14h 40m

$331

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 8/28

2:30 pm-3:35 pm

3 stops26h 05m

Billings Logan Intl

Mon 9/1

11:34 am-4:35 pm

3 stops28h 01m

$562

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 May is, on average, the cheapest month to fly to Billings from Illinois, with most prices found around $359. The month of February is another great option to travel to Billings, with average flight prices from Illinois averaging around $363.

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 $315. Flights from Illinois to Billings on a Saturday will generally be more expensive and average around $535. 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 $294. 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

$152

Fastest flight time

3h 00m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Billings

1 airport
The best one-way flight to Billings from Illinois in the past 72 hours is $152. 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 on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and American Airlines.
There is 1 airport near Billings: Billings Logan Intl (BIL)
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  • 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?

  • 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?

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 AirlinesPriceFrom $225Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $248Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

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.

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