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$130+ Cheap flights from Billings (BIL) to Illinois

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — ORD
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Billings to Illinois

Cheapest flights from Billings to Illinois
Explore the most affordable flight options available from Billings to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:54 pmBIL - ORD
1 stop7h 26mAmerican Airlines
Fri 1/27:32 amORD - BIL
1 stop6h 52mAmerican Airlines
Deal found 12/14$644
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Mon 12/155:54 pmBIL - ORD
1 stop5h 05mUnited Airlines
Thu 12/187:10 amORD - BIL
1 stop7h 14mUnited Airlines
Deal found 12/12$651
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Mon 12/292:40 pmBIL - ORD
2 stops18h 06mUnited Airlines
Fri 1/22:31 pmORD - BIL
1 stop7h 53mUnited Airlines
Deal found 12/14$669
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:40 pmBIL - ORD
1 stop7h 20mUnited Airlines
Thu 1/18:45 amORD - BIL
1 stop5h 39mUnited Airlines
Deal found 12/13$708
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:05 pmBIL - ORD
2 stops25h 07mMultiple Airlines
Thu 1/13:27 pmORD - BIL
1 stop18h 57mMultiple Airlines
Deal found 12/13$718
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:25 amBIL - MDW
2 stops10h 01mDelta
Fri 1/25:59 pmMDW - BIL
1 stop6h 20mDelta
Deal found 12/14$724
This Delta deal was found by Cheapflights users on 12/12. 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.
Mon 12/156:25 amBIL - ORD
1 stop4h 15mDelta
Thu 12/1811:15 amORD - BIL
2 stops13h 33mDelta
Deal found 12/12$736
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/265:50 pmBIL - ORD
1 stop5h 09mUnited Airlines
Mon 12/299:40 pmORD - BIL
1 stop13h 09mUnited Airlines
Deal found 12/14$777
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:14 amBIL - MDW
2 stops10h 06mDelta
Mon 12/295:59 pmMDW - BIL
1 stop6h 20mDelta
Deal found 12/14$1,424

Find flight deals from Billings to Illinois

Keep the following information in mind while searching for Billings to Illinois flight deals. Data was last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$118
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$358

Good round-trip deal

$700 or less
Provider with most accurate pricing for Billings Logan Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-Chicago (CHI) flights.
Search Deals
From Billings Logan Intl to Illinois
Search Deals
One-way flight from Billings Logan Intl to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Billings Logan Intl to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Illinois 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 December 14, 2025.
Use the filters below to find and compare flights from Billings to Illinois that are best for you.

Fly from

Billings

Fly to

Illinois

Route

Depart

Return

Price

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Tue 2/10

6:10 am-1:06 pm

1 stop5h 56m

Chicago Midway

Wed 2/18

1:49 pm-7:39 pm

1 stop6h 50m

$249

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Thu 2/12

6:20 am-1:07 pm

1 stop5h 47m

Chicago Midway

Tue 2/17

1:49 pm-7:39 pm

1 stop6h 50m

$249

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Fri 2/13

6:20 am-1:07 pm

1 stop5h 47m

Chicago Midway

Wed 2/18

1:49 pm-7:39 pm

1 stop6h 50m

$249

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Tue 2/10

6:15 pm-9:53 am

2 stops14h 38m

Chicago Midway

Tue 2/17

1:49 pm-7:39 pm

1 stop6h 50m

$254

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Tue 2/10

6:15 pm-8:42 am

2 stops13h 27m

Chicago O'Hare Intl

Mon 2/16

3:59 pm-7:39 pm

1 stop4h 40m

$254

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Thu 3/26

6:25 am-1:23 pm

1 stop5h 58m

Chicago Midway

Mon 3/30

2:03 pm-8:20 pm

1 stop7h 17m

$270

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Fri 2/13

6:20 am-1:07 pm

1 stop5h 47m

Chicago Midway

Fri 2/20

1:49 pm-7:39 pm

1 stop6h 50m

$274

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Tue 2/10

6:10 am-1:06 pm

1 stop5h 56m

Chicago Midway

Fri 2/20

1:49 pm-7:39 pm

1 stop6h 50m

$274

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 5/23

5:45 am-12:21 pm

1 stop5h 36m

Chicago O'Hare Intl

Sat 5/30

3:50 pm-10:37 pm

1 stop7h 47m

$274

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Wed 2/11

5:15 am-5:55 pm

2 stops11h 40m

Chicago Midway

Tue 2/17

1:49 pm-7:39 pm

1 stop6h 50m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 48 results
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Best time to book a flight from Billings to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 14, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Billings to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,052 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Billings to Illinois. 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 Illinois?

    Billings Logan Intl (BIL) is the airport you will fly out of if you book a flight from Billings to Illinois. It is only a 2.7 mi journey to Billings Logan Intl (BIL) from Billings’s city center.

  • How long is the flight from Billings to Illinois?

    Airlines like Delta, United Airlines, and Alaska Airlines fly from Billings to Illinois in about 5h 56m. The time it takes to get you to your destination can typically vary by up to 15h 23m. The distance from Billings to Illinois is about 1070 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Billings to Illinois?

    Most travelers choose Billings Logan Intl - Chicago O'Hare Intl, Billings Logan Intl - Chicago Midway or Billings Logan Intl - Lambert-St Louis when deciding on the best route from Billings to Illinois.

  • What are the most reliable airlines from Billings to Illinois?

    The top 3 most reliable airlines when flying from Billings to Illinois are American Airlines (93%), Envoy Air (93%) and SkyWest Airlines (92%).

  • What are the cheapest flights from Billings to Illinois?

    The cheapest flight price from Billings to Illinois is $539. On average you can expect to pay $1,546. The most popular route, (Billings Logan Intl - Chicago O'Hare Intl), can usually be booked for $249.

  • Can I find deals for flights from Billings to Illinois that include hotel bookings?

    Yes. In addition to deals on Billings to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Illinois?

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

  • Can I find deals for business class flights from Billings to Illinois?

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

See more FAQs

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Top 3 airlines flying from Billings to Illinois

Discover the top 3 airlines that operate flights from Billings to Illinois. 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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$225Average$370FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$413FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$433FlexibilityNo cancel feeOn-timeN/A

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