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O'Hare Intl

$135+ Cheap flights from Billings (BIL) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — ORD
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Billings to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 16, 2025.

Round-trip from

$229
(American Airlines)

One-way from

$135
(Kiwi.com)

Popular in

September

Cheapest in

October

Average price

$316

Good round-trip deal

$330 or less

Good one-way deal

$212 or less
From Billings Logan Intl to Chicago O'Hare Intl
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One-way flight from Billings Logan Intl to Chicago O'Hare Intl
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Billings Logan Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Billings Logan Intl to Chicago O'Hare Intl.
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Find flight deals from Billings to O'Hare Intl

Cheapest flights from Billings to O'Hare Intl
Explore the most affordable flight options available from Billings to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:19 pmBIL - ORD
Nonstop2h 54mAmerican Airlines
Tue 10/79:40 amORD - BIL
Nonstop3h 10mAmerican Airlines
Deal found 8/13$229
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:54 amBIL - ORD
1 stop8h 03mUnited Airlines
Tue 9/98:55 amORD - BIL
Nonstop3h 21mUnited Airlines
Deal found 8/14$239
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:00 amBIL - ORD
Nonstop2h 53mAmerican Airlines
Sun 10/129:40 amORD - BIL
Nonstop3h 10mAmerican Airlines
Deal found 8/15$244
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:25 amBIL - ORD
1 stop5h 28mDelta
Sat 9/206:20 pmORD - BIL
1 stop5h 44mDelta
Deal found 8/15$249
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:25 amBIL - ORD
1 stop5h 28mDelta
Tue 9/231:22 pmORD - BIL
2 stops10h 48mDelta
Deal found 8/15$254
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:25 amBIL - ORD
1 stop5h 28mDelta
Mon 9/225:15 pmORD - BIL
1 stop6h 55mDelta
Deal found 8/15$264
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:00 pmBIL - ORD
Nonstop3h 00mUnited Airlines
Wed 9/35:00 amORD - BIL
1 stop5h 44mUnited Airlines
Deal found 8/15$269
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:59 pmBIL - ORD
1 stop9h 00mAmerican Airlines
Sat 9/208:39 pmORD - BIL
Nonstop3h 00mAmerican Airlines
Deal found 8/15$285

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
Use the filters below to find and compare flights from Billings to Chicago O'Hare Intl Airport that are best for you.

Fly from

Billings

Fly to

O'Hare Intl

Route

Depart

Return

Price

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Fri 9/5

12:19 pm-4:13 pm

Nonstop2h 54m

Chicago O'Hare Intl

Tue 9/9

8:39 pm-10:39 pm

Nonstop3h 00m

$229

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Thu 10/2

12:19 pm-4:13 pm

Nonstop2h 54m

Chicago O'Hare Intl

Tue 10/7

9:40 am-11:50 am

Nonstop3h 10m

$229

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Fri 9/5

10:54 am-7:57 pm

1 stop8h 03m

Chicago O'Hare Intl

Tue 9/9

8:55 am-11:16 am

Nonstop3h 21m

$239

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 10/4

6:00 am-9:53 am

Nonstop2h 53m

Chicago O'Hare Intl

Sun 10/12

9:40 am-11:50 am

Nonstop3h 10m

$244

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Wed 9/17

5:25 am-11:53 am

1 stop5h 28m

Chicago O'Hare Intl

Sat 9/20

6:20 pm-11:04 pm

1 stop5h 44m

$249

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Fri 10/3

2:30 pm-10:39 pm

1 stop7h 09m

Chicago O'Hare Intl

Sun 10/5

5:01 am-9:35 am

1 stop5h 34m

$249

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Mon 9/15

9:33 pm-1:09 pm

2 stops14h 36m

$135

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sun 10/12

9:35 pm-11:53 pm

2 stops49h 18m

$147

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Mon 10/13

10:02 am-2:27 pm

1 stop27h 25m

$159

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Mon 8/25

10:27 pm-1:33 pm

2 stops38h 06m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 11 results
1
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Best time to book a flight from Billings to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Billings with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Billings to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Billings to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Billings to Chicago O'Hare Intl Airport (average of $245). Flying from Billings to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BIL to ORD?

Find hourly flight availability from Billings to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 16, 2025.

It’s optimal to fly from Billings to Chicago O'Hare Intl Airport at noon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Billings to Chicago O'Hare Intl Airport

Explore weekly flight availability from Billings to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 16, 2025.

The most flights from BIL to ORD are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated August 16, 2025.
Read through reviews of airlines operating flights from Billings to Chicago O'Hare Intl Airport, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,985 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Billings to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Billings to Chicago O'Hare Intl?

    For a flight from Billings to Chicago O'Hare Intl, you will be flying from Billings Logan Intl. Billings Logan Intl (BIL) is just 2.7 mi from the center of the city. Billings Logan Intl is the only Billings airport and it handles 4 outbound flights to Chicago O'Hare Intl per day. 3 airlines have flights to Chicago O'Hare Intl from Billings Logan Intl on a regular basis.

  • What are the cheapest airlines flying from Billings to Chicago O'Hare Intl Airport round-trip?

    According to our current data, American Airlines ($225), United Airlines ($239), and Delta ($314) offers the cheapest pricing from Billings to Chicago O'Hare Intl Airport. Users have found that American Airlines is 53% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Billings to Chicago O'Hare Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Billings to Chicago O'Hare Intl Airport consider choosing SkyWest Airlines (80%), United Airlines (80%) or Qatar Airways (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Billings to Chicago O'Hare Intl Airport?

    On average you can expect to pay $434 for a flight from Billings to Chicago O'Hare Intl Airport. The cheapest flight overall is $175 while the most popular route, (Billings Logan Intl - Chicago O'Hare Intl) is currently priced at $239.

  • Can I find deals for flights from Billings to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Billings to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to O'Hare Intl.

  • Can I find deals for business class flights from Billings to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Billings to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Billings to Chicago O'Hare Intl Airport (average of $245). Flying from Billings to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Beloit
Hoffman Estates
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Merrillville
Naperville
Waukegan
Elk Grove Village
Downers Grove
Tinley Park
Evanston

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Top 3 airlines flying from Billings to O'Hare Intl

Discover the top 3 airlines that operate flights from Billings to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$225Average$390FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$542FlexibilityNo cancel feeOn-time69%
DeltaCheapest$314Average$380FlexibilityNo cancel feeOn-timeN/A

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