HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$157+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — ORD
nov. 26 — dic. 31
mar. 11/26
mar. 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Billings to Illinois with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Billings to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Illinois (USIL). 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 noviembre 21, 2024.

Find 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 noviembre 21, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/1610:14 pmBIL - ORD
2 stops18h 26mMultiple Airlines
jue. 12/197:00 amORD - BIL
2 stops27h 14mMultiple Airlines
Deal found 11/20$292
This Delta deal was found by Cheapflights users on 11/20. 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.
sáb. 12/146:20 amBIL - ORD
1 stop7h 23mDelta
lun. 12/165:25 pmORD - BIL
1 stop6h 57mDelta
Deal found 11/20$335
This United Airlines deal was found by Cheapflights users on 11/20. 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.
vie. 12/132:40 pmBIL - ORD
1 stop7h 11mUnited Airlines
dom. 12/157:10 amORD - BIL
1 stop7h 11mUnited Airlines
Deal found 11/20$420
This American Airlines deal was found by Cheapflights users on 11/20. 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.
vie. 12/205:00 amBIL - ORD
1 stop10h 03mAmerican Airlines
dom. 1/55:00 amORD - BIL
1 stop9h 27mAmerican Airlines
Deal found 11/20$489
This American Airlines deal was found by Cheapflights users on 11/20. 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.
sáb. 12/281:57 pmBIL - STL
1 stop7h 24mAmerican Airlines
jue. 1/27:04 amSTL - BIL
1 stop7h 23mAmerican Airlines
Deal found 11/20$611
This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/62:46 pmBIL - ORD
2 stops13h 33mAlaska Airlines
dom. 12/86:32 amORD - BIL
1 stop18h 10mAlaska Airlines
Deal found 11/20$620
This United deal was found by Cheapflights users on 11/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/282:40 pmBIL - STL
1 stop5h 11mUnited Airlines
jue. 1/28:00 amSTL - BIL
2 stops9h 55mUnited Airlines
Deal found 11/20$655
This Delta deal was found by Cheapflights users on 11/20. 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.
lun. 12/166:20 amBIL - MDW
1 stop6h 11mDelta
jue. 12/195:04 pmMDW - BIL
1 stop7h 28mDelta
Deal found 11/20$686
This Delta deal was found by Cheapflights users on 11/20. 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.
jue. 12/55:20 amBIL - STL
1 stop7h 10mDelta
lun. 12/97:15 pmSTL - BIL
1 stop5h 07mDelta
Deal found 11/20$694
This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/510:22 pmBIL - STL
3 stops36h 08mMultiple Airlines
lun. 12/912:15 pmSTL - BIL
3 stops26h 59mMultiple Airlines
Deal found 11/20$840

Find flights from Billings to Illinois within your budget

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 2,629,791 searches. Data last updated noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BillingsMoline

BIL - MLI

BILMLI

Billings Logan Intl

jue. 1/23

2:03 pm-9:29 pm

1 stop6h 26m

Moline Quad-City

mar. 1/28

6:31 am-1:33 pm

1 stop8h 02m

$258

BillingsMoline

BIL - MLI

BILMLI

Billings Logan Intl

jue. 1/23

2:33 pm-8:42 pm

1 stop5h 09m

Moline Quad-City

mar. 1/28

10:53 am-9:13 pm

2 stops11h 20m

$285

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

lun. 12/16

10:14 pm-5:40 pm

2 stops18h 26m

Chicago O'Hare Intl

jue. 12/19

7:00 am-9:14 am

2 stops27h 14m

$292

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

sáb. 12/14

6:20 am-2:43 pm

1 stop7h 23m

Chicago O'Hare Intl

lun. 12/16

5:25 pm-11:22 pm

1 stop6h 57m

$335

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

vie. 12/13

2:40 pm-10:51 pm

1 stop7h 11m

Chicago O'Hare Intl

dom. 12/15

7:10 am-1:21 pm

1 stop7h 11m

$420

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

sáb. 5/3

7:40 am-5:04 am

1 stop20h 24m

Chicago O'Hare Intl

lun. 5/5

5:10 pm-6:36 pm

1 stop26h 26m

$445

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

mar. 4/1

1:45 pm-1:52 pm

2 stops23h 07m

Lambert-St Louis

mar. 4/8

2:55 pm-1:02 pm

2 stops23h 07m

$484

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

vie. 12/20

5:00 am-4:03 pm

1 stop10h 03m

Chicago O'Hare Intl

dom. 1/5

5:00 am-1:27 pm

1 stop9h 27m

$489

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

mar. 4/1

7:00 am-4:26 pm

1 stop8h 26m

Lambert-St Louis

mar. 4/8

4:30 pm-1:13 pm

1 stop21h 43m

$545

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

mar. 4/1

6:35 pm-12:37 am

1 stop5h 02m

Lambert-St Louis

mar. 4/8

6:59 pm-12:26 am

1 stop6h 27m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 24 results
1
2
3

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.

Travel insights for flights from Billings to Illinois

Get recent, data-driven insights about flights from Billings to Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Billings to Illinois?

Currently, September is the cheapest month in which you can book a flight from Billings to Illinois (average of $232). Flying from Billings to Illinois in June is currently the most expensive (average of $308). 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 IL?

Find hourly flight availability from Billings to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 21, 2024.

When flying from Billings to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 noviembre 21, 2024.
See what other customers who have flown with Delta, Alaska Airlines and United 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.
Alaska Airlines
8.0
Very good
9,458 reviews

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,458 reviews
Alaska Airlines
8.0
Very good
9,458 reviews

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,758 reviews
Alaska Airlines
8.0
Very good
9,458 reviews

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,172 reviews
Alaska Airlines
8.0
Very good
9,458 reviews

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,458 reviews

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

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.

  • What are the cheapest airlines to fly from Billings to Illinois one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from Alaska Airlines and American Airlines, as they are both options that can get you from Billings to Illinois for a low price.

  • 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 (86%), Qatar Airways (86%) and Envoy Air (86%).

  • What are the cheapest flights from Billings to Illinois?

    The cheapest flight price from Billings to Illinois is $1,220. On average you can expect to pay $1,220. The most popular route, (Billings Logan Intl - Chicago O'Hare Intl), can usually be booked for $292.

  • 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.

  • What is the cheapest month to book a flight from Billings to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Billings to Illinois (average of $232). Flying from Billings to Illinois in June is currently the most expensive (average of $308). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Billings to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Minneapolis flights
Missoula to Denver flights
Bozeman to Denver flights
Bozeman to Dallas/Fort Worth flights
Bozeman to Seattle flights
Missoula to Seattle flights
Bozeman to Sky Harbor Intl flights
Bozeman to LaGuardia flights
Bozeman to San Francisco flights
Bozeman to John F Kennedy Intl flights
Billings to Seattle flights
Bozeman to Newark flights
Bozeman to Las Vegas flights
Helena to Sky Harbor Intl flights
Billings to Las Vegas flights
Bozeman to O'Hare Intl flights
Kalispell to Seattle flights
Missoula to Dallas/Fort Worth flights
Bozeman to Miami flights
Bozeman to Orlando flights
Bozeman to Boston flights
Bozeman to Los Angeles flights
Helena to Seattle flights
Billings to Sky Harbor Intl flights
Bozeman to Nashville flights
Bozeman to Honolulu flights
Billings to Hobby flights
Billings to Dallas/Fort Worth flights
Bozeman to San Diego flights
Billings to Denver flights
Missoula to Boston flights
Bozeman to Kailua-Kona flights
Kalispell to Hobby flights
Missoula to O'Hare Intl flights
Helena to Reagan-National flights
Missoula to Minneapolis flights
Great Falls to Dallas/Fort Worth flights
Great Falls to Seattle flights
Missoula to Honolulu flights
Billings to Fort Lauderdale flights
Helena to Dulles Intl flights
Bozeman to Dulles Intl flights
Bozeman to Fort Myers flights
Bozeman to Atlanta flights
Billings to New Orleans flights
Missoula to Portland flights
Billings to Orlando flights
Great Falls to Minneapolis flights
Billings to Minneapolis flights
Billings to Los Angeles flights

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 2,629,791 searches. Data last updated noviembre 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$314Average$565FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$518Average$644FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$568Average$675FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines