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Cheap flights from Illinois to Billings from $147

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 8/24. 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

Enter your travel dates to find the best prices.
American Airlines Logo
9:40 am - 11:45 am
ORD
-
BIL
3h 05mnonstop
American Airlines Logo
2:02 pm - 6:00 pm
BIL
-
ORD
2h 58mnonstop
$251American Airlines
ti, syys 29 - ti, loka 6
American Airlines Logo
9:45 am - 12:12 pm
ORD
-
BIL
3h 27mnonstop
American Airlines Logo
12:42 pm - 4:44 pm
BIL
-
ORD
3h 02mnonstop
$270American Airlines
ke, Touko 27 - ke, kesä 3
Delta Logo
7:13 pm - 11:14 pm
MDW
-
BIL
5h 01m
1 stop
Delta Logo
6:24 am - 1:09 pm
BIL
-
MDW
5h 45m
1 stop
$271Delta
la, kesä 6 - ke, kesä 17
Delta Logo
5:41 pm - 11:14 pm
ORD
-
BIL
6h 33m
1 stop
Delta Logo
6:30 am - 2:57 pm
BIL
-
ORD
7h 27m
1 stop
$271Delta
ke, Touko 27 - ke, kesä 3
Delta Logo
1:22 pm - 10:52 pm
MDW
-
BIL
10h 30m
2 stops
Delta Logo
6:24 am - 1:09 pm
BIL
-
MDW
5h 45m
1 stop
$276Delta
la, kesä 6 - ke, kesä 17
Delta Logo
5:41 pm - 11:14 pm
ORD
-
BIL
6h 33m
1 stop
Delta Logo
5:20 am - 4:26 pm
BIL
-
ORD
10h 06m
2 stops
$276Delta
la, kesä 6 - ke, kesä 17
American Airlines Logo
9:45 am - 12:12 pm
ORD
-
BIL
3h 27mnonstop
American Airlines Logo
12:42 pm - 4:44 pm
BIL
-
ORD
3h 02mnonstop
$289American Airlines
su, Touko 24 - su, Touko 31
United Airlines Logo
4:06 pm - 8:57 pm
STL
-
BIL
5h 51m
1 stop
United Airlines Logo
2:25 pm - 8:57 pm
BIL
-
STL
5h 32m
1 stop
$354United Airlines
ti, Touko 12 - la, Touko 23
United Airlines Logo
4:06 pm - 8:57 pm
STL
-
BIL
5h 51m
1 stop
United Airlines Logo
2:30 pm - 8:43 pm
BIL
-
STL
5h 13m
1 stop
$369United Airlines
ti, Touko 12 - la, Touko 16
United Airlines Logo
6:45 am - 11:21 am
MLI
-
BIL
5h 36m
1 stop
United Airlines Logo
2:40 pm - 9:03 pm
BIL
-
MLI
5h 23m
1 stop
$419United Airlines
ti, loka 27 - la, loka 31

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Delta flights from Illinois to Billings

Our best Delta deals on Illinois to Billings flight tickets
Delta
Jun 6
MDW7:13 pmChicago Midway
5h 01m
1 stop
BIL11:14 pmBillings Logan Intl
Jun 17
BIL6:24 amBillings Logan Intl
5h 45m
1 stop
MDW1:09 pmChicago Midway
$271
Delta
Jun 6
MDW1:22 pmChicago Midway
10h 30m
2 stops
BIL10:52 pmBillings Logan Intl
Jun 17
BIL6:24 amBillings Logan Intl
5h 45m
1 stop
MDW1:09 pmChicago Midway
$276
Delta
Jun 6
ORD1:44 pmChicago O'Hare Intl
10h 30m
2 stops
BIL11:14 pmBillings Logan Intl
Jun 17
BIL5:20 amBillings Logan Intl
10h 06m
2 stops
ORD4:26 pmChicago O'Hare Intl
$281

United Airlines flights from Illinois to Billings

Our best United Airlines deals on Illinois to Billings flight tickets
United Airlines
May 27
ORD5:00 amChicago O'Hare Intl
5h 35m
1 stop
BIL9:35 amBillings Logan Intl
Jun 3
BIL6:00 pmBillings Logan Intl
5h 44m
1 stop
ORD12:44 amChicago O'Hare Intl
$290
United Airlines
Jul 18
ORD5:00 amChicago O'Hare Intl
5h 35m
1 stop
BIL9:35 amBillings Logan Intl
Jul 21
BIL6:00 pmBillings Logan Intl
5h 44m
1 stop
ORD12:44 amChicago O'Hare Intl
$303
United Airlines
Aug 7
ORD7:57 pmChicago O'Hare Intl
3h 23m
BIL10:20 pmBillings Logan Intl
Aug 21
BIL2:25 pmBillings Logan Intl
5h 47m
1 stop
ORD9:12 pmChicago O'Hare Intl
$310

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 toukokuu 1, 2026.
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

Cheapest round-trip
Quickest round-trip

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

ti 9/29

9:40 am-11:45 am

Nonstop3h 05m

Billings Logan Intl

ti 10/6

2:02 pm-6:00 pm

Nonstop2h 58m

$251

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

ke 5/27

9:45 am-12:12 pm

Nonstop3h 27m

Billings Logan Intl

ke 6/3

12:42 pm-4:44 pm

Nonstop3h 02m

$270

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

la 6/6

7:13 pm-11:14 pm

1 stop5h 01m

Billings Logan Intl

ke 6/17

6:24 am-1:09 pm

1 stop5h 45m

$271

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

ke 5/27

5:41 pm-11:14 pm

1 stop6h 33m

Billings Logan Intl

ke 6/3

6:30 am-2:57 pm

1 stop7h 27m

$271

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

la 6/6

1:22 pm-10:52 pm

2 stops10h 30m

Billings Logan Intl

ke 6/17

6:24 am-1:09 pm

1 stop5h 45m

$276

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

la 6/6

5:41 pm-11:14 pm

1 stop6h 33m

Billings Logan Intl

ke 6/17

5:20 am-4:26 pm

2 stops10h 06m

$276

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

su 5/24

9:45 am-12:12 pm

Nonstop3h 27m

Billings Logan Intl

su 5/31

12:42 pm-4:44 pm

Nonstop3h 02m

$289

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

ti 5/12

4:06 pm-8:57 pm

1 stop5h 51m

Billings Logan Intl

la 5/23

2:25 pm-8:57 pm

1 stop5h 32m

$354

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

ti 5/12

4:06 pm-8:57 pm

1 stop5h 51m

Billings Logan Intl

la 5/16

2:30 pm-8:43 pm

1 stop5h 13m

$369

MolineBillings

MLI - BIL

MLIBIL

Moline Quad-City

ti 10/27

6:45 am-11:21 am

1 stop5h 36m

Billings Logan Intl

la 10/31

2:40 pm-9:03 pm

1 stop5h 23m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March is, on average, the cheapest month to fly to Billings from Illinois, with most prices found around $208. The month of September is another great option to travel to Billings, with average flight prices from Illinois averaging around $209.

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

Our data shows that Friday is the least expensive day to fly to Billings. Tickets to fly out on this day can be as low as $339. Flights from Illinois to Billings on a Sunday will generally be more expensive and average around $511. 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. In the morning is when there is more demand to fly to Billings, so prices are often more expensive at around $392 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

Can stopping save me money on Illinois to Billings flights?

You could potentially save up to 24% 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

$379

Fastest flight time

3h 21m

Direct flights

Every day

Airports in Billings

1 airport
The best flight deal from Illinois to Billings found on momondo in the last 72 hours is $379
The fastest flight from Illinois to Billings takes 3h 21m
Direct flights go from Illinois to Billings every day.
There is 1 airport in Billings. From Illinois there are direct flights to Billings Logan Intl (BIL).
Search flight deals

Frequently asked questions about flying from Illinois to Billings

  • 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 $210Free CancellationRating
7.1
11,684 reviews
Search American Airlines flights
United AirlinesPriceFrom $244Free CancellationRating
7.4
9,675 reviews
Search United Airlines flights

Traveling to a place near Billings?

Book flights to Billings if you plan to visit one of these locations
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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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su 5/31
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