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Billings

$150+ Cheap flights from Illinois to Billings (BIL)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to Billings

Cheapest flights from Illinois to Billings
Explore the most affordable flight options available from Illinois to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 2/191:49 pm
MDW
-
BIL
1 stop6h 50m
Delta
Wed 2/256:20 am
BIL
-
MDW
1 stop5h 45m
Delta
Deal found 1/27$249
This Delta deal was found by Cheapflights users on 1/28. 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.
Sun 8/303:50 pm
ORD
-
BIL
1 stop7h 47m
Delta
Sat 9/55:45 am
BIL
-
ORD
1 stop5h 36m
Delta
Deal found 1/28$249
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 9/88:46 pm
ORD
-
BIL
Nonstop3h 13m
American Airlines
Sat 9/197:16 am
BIL
-
ORD
Nonstop2h 54m
American Airlines
Deal found 1/26$256
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 5/287:52 pm
ORD
-
BIL
Nonstop3h 21m
United Airlines
Sun 5/318:45 am
BIL
-
ORD
Nonstop3h 00m
United Airlines
Deal found 1/27$263
This United Airlines deal was found by Cheapflights users on 1/28. 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 8/309:00 am
ORD
-
BIL
Nonstop3h 21m
United Airlines
Sat 9/52:40 pm
BIL
-
ORD
1 stop6h 45m
United Airlines
Deal found 1/28$267
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 2/197:10 am
ORD
-
BIL
1 stop7h 13m
United Airlines
Thu 2/265:53 pm
BIL
-
ORD
1 stop5h 06m
United Airlines
Deal found 1/28$268
This Delta deal was found by Cheapflights users on 1/26. 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.
Sun 9/66:45 pm
MDW
-
BIL
1 stop4h 52m
Delta
Sat 9/196:15 am
BIL
-
MDW
1 stop5h 52m
Delta
Deal found 1/26$274
This Delta deal was found by Cheapflights users on 1/26. 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 9/93:50 pm
ORD
-
BIL
1 stop7h 47m
Delta
Sat 9/195:45 am
BIL
-
ORD
1 stop5h 36m
Delta
Deal found 1/26$274
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 2/1911:18 am
ORD
-
BIL
2 stops12h 08m
Delta
Wed 2/255:10 am
BIL
-
ORD
1 stop6h 09m
Delta
Deal found 1/27$279
This Delta deal was found by Cheapflights users on 1/27. 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.
Tue 2/242:05 pm
ORD
-
BIL
2 stops9h 21m
Delta
Fri 2/275:10 am
BIL
-
ORD
1 stop6h 09m
Delta
Deal found 1/27$296
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 5/282:18 pm
STL
-
BIL
2 stops9h 09m
Delta
Tue 6/26:25 pm
BIL
-
STL
1 stop5h 11m
Delta
Deal found 1/27$299
This Delta deal was found by Cheapflights users on 1/28. 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 3/41:49 pm
MDW
-
BIL
1 stop6h 50m
Delta
Fri 3/66:20 am
BIL
-
MDW
1 stop5h 45m
Delta
Deal found 1/28$316

Find flight deals from Illinois to Billings

Keep the following information in mind while searching for Illinois to Billings flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

One-way from

$150
(Alaska Airlines)

Popular in

March

Cheapest in

August

Average price

$590

Good round-trip deal

$379 or less
Provider with most accurate pricing for Chicago (CHI)-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Billings Logan Intl flights.
Search Deals
From Illinois to Billings Logan Intl
Search Deals
One-way flight from Illinois to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Billings Logan Intl.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Illinois to Billings that are best for you.

Fly from

Illinois

Fly to

Billings

Route

Depart

Return

Price

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Thu 2/19

1:49 pm-7:39 pm

1 stop6h 50m

Billings Logan Intl

Wed 2/25

6:20 am-5:37 pm

2 stops10h 17m

$254

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 5/28

7:52 pm-10:13 pm

Nonstop3h 21m

Billings Logan Intl

Sun 5/31

8:45 am-12:45 pm

Nonstop3h 00m

$263

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Fri 2/20

2:40 pm-9:21 pm

1 stop7h 41m

Billings Logan Intl

Mon 2/23

5:53 pm-11:59 pm

1 stop5h 06m

$268

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 2/19

7:10 am-1:23 pm

1 stop7h 13m

Billings Logan Intl

Tue 2/24

5:53 pm-11:59 pm

1 stop5h 06m

$268

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 2/19

11:18 am-10:26 pm

2 stops12h 08m

Billings Logan Intl

Wed 2/25

5:10 am-12:19 pm

1 stop6h 09m

$279

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 5/28

1:35 pm-10:27 pm

2 stops9h 52m

Billings Logan Intl

Sun 5/31

5:45 am-12:21 pm

1 stop5h 36m

$279

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 2/24

2:05 pm-10:26 pm

2 stops9h 21m

Billings Logan Intl

Fri 2/27

5:10 am-12:19 pm

1 stop6h 09m

$296

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/28

2:18 pm-10:27 pm

2 stops9h 09m

Billings Logan Intl

Tue 6/2

6:25 pm-12:36 am

1 stop5h 11m

$299

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 2/19

11:18 am-10:26 pm

2 stops12h 08m

Billings Logan Intl

Tue 2/24

5:10 am-12:19 pm

1 stop6h 09m

$309

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 2/19

11:18 am-10:26 pm

2 stops12h 08m

Billings Logan Intl

Thu 2/26

5:10 am-12:19 pm

1 stop6h 09m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 49 results
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Best time to book a flight from Illinois to Billings

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

Related info for your journey

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

    Located just 2.7 mi from the city center, Billings Logan Intl (BIL) is the airport most travelers will use when flying to Billings from Illinois.

  • How long is the flight from Illinois to Billings?

    Departing from Illinois to Billings will take you 3h 21m. Illinois and Billings are separated by a distance of 1057 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    While some choose either Chicago Midway - Billings Logan Intl or Lambert-St Louis - Billings Logan Intl, Chicago O'Hare Intl - Billings Logan Intl is the most popular route from Illinois to Billings.

  • What are the cheapest flights from Illinois to Billings?

    While on average a flight from Illinois to Billings is generally $379, our data shows the cheapest flight currently is $295. When looking at the most popular route, (Chicago O'Hare Intl - Billings Logan Intl), you can expect to pay $239 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Billings 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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Alternative routes for Illinois to Billings

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Top 2 airlines flying from Illinois to Billings

Discover the top 2 airlines that operate flights from Illinois to Billings. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$225Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$517FlexibilityNo cancel feeOn-time69%

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