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Cheap flights from Chicago O'Hare Intl Airport to Billings from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Billings departing on 9/17. 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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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Billings

Cheap round-trip flights

American Airlines Logo
8:39 pm - 10:39 pmORD-BIL
3h 00mnonstop
American Airlines Logo
12:19 pm - 4:13 pmBIL-ORD
2h 54mnonstop
$229American Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
United Airlines Logo
8:55 am - 11:16 amORD-BIL
3h 21mnonstop
United Airlines Logo
4:15 pm - 10:42 pmBIL-ORD
5h 27m1 stop
$239United Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
American Airlines Logo
6:50 pm - 8:57 pmORD-BIL
3h 07mnonstop
American Airlines Logo
6:02 am - 9:55 amBIL-ORD
2h 53mnonstop
$244American Airlines
Find Deal
Thu, Sep 4 - Tue, Sep 9
Delta Logo
1:22 pm - 11:10 pmORD-BIL
10h 48m2 stops
Delta Logo
6:25 am - 3:01 pmBIL-ORD
7h 36m1 stop
$249Delta
Find Deal
Wed, Sep 17 - Tue, Sep 23
United Airlines Logo
5:00 am - 9:44 amORD-BIL
5h 44m1 stop
United Airlines Logo
12:00 pm - 4:00 pmBIL-ORD
3h 00mnonstop
$254United Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
Delta Logo
8:55 am - 5:48 pmORD-BIL
9h 53m2 stops
Delta Logo
6:25 am - 6:56 pmBIL-ORD
11h 31m2 stops
$259Delta
Find Deal
Wed, Nov 12 - Sat, Nov 15
Delta Logo
5:40 pm - 11:12 pmORD-BIL
6h 32m1 stop
Delta Logo
5:25 am - 4:38 pmBIL-ORD
10h 13m2 stops
$264Delta
Find Deal
Tue, Sep 2 - Sat, Sep 6
United Airlines Logo
8:55 am - 11:16 amORD-BIL
3h 21mnonstop
United Airlines Logo
5:00 am - 11:28 amBIL-ORD
5h 28m1 stop
$269United Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
United Airlines Logo
2:53 pm - 8:34 pmORD-BIL
6h 41m1 stop
United Airlines Logo
4:15 pm - 11:59 pmBIL-ORD
6h 44m1 stop
$274United Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
United Airlines Logo
5:00 am - 9:44 amORD-BIL
5h 44m1 stop
United Airlines Logo
12:00 pm - 4:00 pmBIL-ORD
3h 00mnonstop
$276United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 16

American Airlines flights from Chicago O'Hare Intl Airport to Billings

Our best American Airlines deals on Chicago O'Hare Intl Airport to Billings flight tickets
American Airlines
Sep 24
ORD8:39 pmChicago O'Hare Intl
3h 00m
BIL10:39 pmBillings Logan Intl
Sep 30
BIL12:19 pmBillings Logan Intl
2h 54m
ORD4:13 pmChicago O'Hare Intl
$229
Find similar
American Airlines
Sep 4
ORD6:50 pmChicago O'Hare Intl
3h 07m
BIL8:57 pmBillings Logan Intl
Sep 9
BIL6:02 amBillings Logan Intl
2h 53m
ORD9:55 amChicago O'Hare Intl
$244
Find similar
American Airlines
Sep 24
ORD3:08 pmChicago O'Hare Intl
7h 41m
1 stop
BIL9:49 pmBillings Logan Intl
Sep 30
BIL6:02 amBillings Logan Intl
2h 53m
ORD9:55 amChicago O'Hare Intl
$285
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to Billings

Our best United Airlines deals on Chicago O'Hare Intl Airport to Billings flight tickets
United Airlines
Sep 15
ORD8:55 amChicago O'Hare Intl
3h 21m
BIL11:16 amBillings Logan Intl
Sep 22
BIL4:15 pmBillings Logan Intl
5h 27m
1 stop
ORD10:42 pmChicago O'Hare Intl
$239
Find similar
United Airlines
Sep 2
ORD5:00 amChicago O'Hare Intl
5h 44m
1 stop
BIL9:44 amBillings Logan Intl
Sep 9
BIL12:00 pmBillings Logan Intl
3h 00m
ORD4:00 pmChicago O'Hare Intl
$254
Find similar
United Airlines
Sep 2
ORD8:55 amChicago O'Hare Intl
3h 21m
BIL11:16 amBillings Logan Intl
Sep 6
BIL5:00 amBillings Logan Intl
5h 28m
1 stop
ORD11:28 amChicago O'Hare Intl
$269
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 20, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 9/24

8:39 pm-10:39 pm

Nonstop3h 00m

Billings Logan Intl

Tue 9/30

12:19 pm-4:13 pm

Nonstop2h 54m

$229

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Mon 9/15

8:55 am-11:16 am

Nonstop3h 21m

Billings Logan Intl

Mon 9/22

4:15 pm-10:42 pm

1 stop5h 27m

$239

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

$244

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 9/17

1:22 pm-11:10 pm

2 stops10h 48m

Billings Logan Intl

Tue 9/23

6:25 am-3:01 pm

1 stop7h 36m

$249

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 9/2

5:00 am-9:44 am

1 stop5h 44m

Billings Logan Intl

Tue 9/9

12:00 pm-4:00 pm

Nonstop3h 00m

$254

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Wed 11/12

8:55 am-5:48 pm

2 stops9h 53m

Billings Logan Intl

Sat 11/15

6:25 am-6:56 pm

2 stops11h 31m

$259

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 9/2

5:40 pm-11:12 pm

1 stop6h 32m

Billings Logan Intl

Sat 9/6

5:25 am-4:38 pm

2 stops10h 13m

$264

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 9/2

8:55 am-11:16 am

Nonstop3h 21m

Billings Logan Intl

Sat 9/6

5:00 am-11:28 am

1 stop5h 28m

$269

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Mon 9/15

2:53 pm-8:34 pm

1 stop6h 41m

Billings Logan Intl

Mon 9/22

4:15 pm-11:59 pm

1 stop6h 44m

$274

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 9/16

5:00 am-9:44 am

1 stop5h 44m

Billings Logan Intl

Tue 9/16

12:00 pm-4:00 pm

Nonstop3h 00m

$276

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 Chicago O'Hare Intl Airport 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 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 Chicago O'Hare Intl Airport to Billings on a Saturday will generally be more expensive and average around $529. 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 Chicago O'Hare Intl Airport to Billings in the evening for as low as $299. 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 Chicago O'Hare Intl to Billings Logan Intl flight route?

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

What cabin class options are available on Chicago O'Hare Intl to Billings Logan Intl flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport to Billings flights?

You could potentially save up to 8% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Billings flight.

When to book flights from Chicago O'Hare Intl Airport to Billings

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Billings according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Billings (ORD to BIL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Billings

Best Price Found

$149

Fastest flight time

3h 00m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Billings

1 airport
The best one-way flight to Billings from Chicago O'Hare Intl Airport in the past 72 hours is $149. The best round-trip flight deal from Chicago O'Hare Intl Airport to Billings found on momondo in the last 72 hours is $229.
The fastest flight from Chicago O'Hare Intl Airport to Billings takes 3h 00m
Direct flights go from Chicago O'Hare Intl Airport to Billings on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airlines offering direct flights are: United Airlines and American Airlines.
There is 1 airport near Billings: Billings Logan Intl (BIL)
Search flight deals

  • How far is Chicago O'Hare Intl to Billings Logan Intl by plane?

    The distance between Chicago O'Hare Intl and Billings Logan Intl is about 1054.8 mi. A reasonable flight in good conditions will take 3h 00m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Billings Logan Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Billings Logan Intl Airport were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Billings Logan Intl Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport to Billings Logan Intl Airport.

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

    The required travel and health documents for your Billings Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Billings Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Billings?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Billings?

Best airlines flying from Chicago O'Hare Intl Airport to Billings

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport 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
7.9
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago O'Hare Intl Airport to Billings

    United Airlines flies from Chicago O'Hare Intl Airport to Billings around 7 times per week, with 8,928 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago O'Hare Intl Airport to Billings in the last 72 hours was $306 (round-trip), much lower than the average airfare cost of $459 for United Airlines flights on this route.

  • American Airlines Flights From Chicago O'Hare Intl Airport to Billings

    American Airlines (7.2/10 from 10,000 reviews) operates around 14 flights from Chicago O'Hare Intl Airport to Billings in any given week. The average American Airlines airfare for this route is around $462, with deals from around $225 rare but found on momondo. Referenced prices are for round-trip Chicago O'Hare Intl Airport to Billings flight searches in the last 72 hours.

Why use momondo?

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

Finding the right flight to Billings from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Billings quick and easy, saving you time and money.

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

All flight searches from Chicago to Billings on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Billings.

I’m not ready to book a flight from Chicago 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 Chicago and alert you when they change.

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