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$163+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — ORD
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Round-trip from

$399
(American Airlines)

One-way from

$163
(American Airlines)
From Billings Logan Intl to Illinois
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One-way flight from Billings Logan Intl to Illinois
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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 December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/242:40 pmBIL - MLI
1 stop5h 37mUnited Airlines
Fri 1/38:50 amMLI - BIL
1 stop5h 24mUnited Airlines
Deal found 12/17$559
This Delta deal was found by Cheapflights users on 12/17. 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.
Sat 12/285:20 amBIL - STL
1 stop7h 00mDelta
Thu 1/26:04 pmSTL - BIL
1 stop6h 28mDelta
Deal found 12/17$686
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/201:57 pmBIL - ORD
1 stop8h 12mAmerican Airlines
Sun 1/55:00 amORD - BIL
1 stop9h 27mAmerican Airlines
Deal found 12/17$764
This Delta deal was found by Cheapflights users on 12/17. 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 12/205:20 amBIL - ORD
1 stop6h 36mDelta
Sun 1/53:18 pmORD - BIL
2 stops10h 17mDelta
Deal found 12/17$769
This United deal was found by Cheapflights users on 12/17. 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.
Sat 12/287:00 amBIL - STL
2 stops7h 42mUnited Airlines
Thu 1/210:35 amSTL - BIL
2 stops11h 43mUnited Airlines
Deal found 12/17$835
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Mon 12/2310:04 amBIL - ORD
2 stops21h 06mMultiple Airlines
Fri 12/279:54 pmORD - BIL
1 stop13h 30mMultiple Airlines
Deal found 12/17$924
This Delta deal was found by Cheapflights users on 12/17. 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 12/236:20 amBIL - MDW
2 stops9h 04mDelta
Fri 12/275:04 pmMDW - BIL
1 stop7h 28mDelta
Deal found 12/17$941

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BillingsMoline

BIL - MLI

BILMLI

Billings Logan Intl

Fri 1/17

2:03 pm-9:29 pm

1 stop6h 26m

Moline Quad-City

Mon 1/20

3:28 pm-9:39 pm

1 stop7h 11m

$399

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Tue 4/8

2:18 pm-11:59 pm

2 stops32h 41m

Lambert-St Louis

Tue 4/15

3:11 pm-11:09 pm

1 stop8h 58m

$402

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Mon 3/3

2:55 pm-6:00 pm

2 stops26h 05m

Chicago O'Hare Intl

Wed 3/5

7:45 am-10:46 pm

1 stop16h 01m

$429

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Sun 1/12

2:03 pm-1:00 pm

1 stop21h 57m

Lambert-St Louis

Sat 1/18

1:45 pm-9:39 pm

1 stop8h 54m

$463

BillingsMoline

BIL - MLI

BILMLI

Billings Logan Intl

Fri 1/17

2:33 pm-8:42 pm

1 stop5h 09m

Moline Quad-City

Mon 1/20

10:53 am-9:13 pm

2 stops11h 20m

$475

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Sun 1/12

7:00 am-12:48 pm

1 stop4h 48m

Lambert-St Louis

Sat 1/18

9:44 am-9:13 pm

2 stops12h 29m

$503

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Fri 1/17

11:40 am-9:22 pm

1 stop8h 42m

Chicago O'Hare Intl

Mon 1/20

7:20 pm-12:31 am

1 stop6h 11m

$506

BillingsChicago

BIL - MDW

BILMDW

Billings Logan Intl

Mon 1/6

6:21 am-12:46 pm

1 stop5h 25m

Chicago Midway

Sun 1/12

6:59 pm-11:07 pm

1 stop5h 08m

$516

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Sat 5/31

7:00 am-11:57 pm

1 stop15h 57m

Chicago O'Hare Intl

Sun 6/8

5:00 am-8:51 pm

1 stop16h 51m

$563

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Sat 12/28

5:20 am-1:20 pm

1 stop7h 00m

Lambert-St Louis

Thu 1/2

6:04 pm-11:32 pm

1 stop6h 28m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 15 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.

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 December 18, 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 December 18, 2024.
See what other customers who have flown with United Airlines, American Airlines and Delta 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
9,554 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.2

Boarding

8.2

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,554 reviews
Alaska Airlines
8.0
Very good
9,554 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.2

Boarding

8.2

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,554 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.2

Boarding

8.2

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,055 reviews
Alaska Airlines
8.0
Very good
9,554 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.2

Boarding

8.2

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,554 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.2

Boarding

8.2

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

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 American Airlines, with whom users have recently found tickets for as low as $163. However, be on the lookout for offers from Alaska Airlines and United 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 - Lambert-St Louis or Billings Logan Intl - Chicago Midway when deciding on the best route from Billings to Illinois.

  • What are the cheapest flights from Billings to Illinois?

    The cheapest flight price from Billings to Illinois is $741. On average you can expect to pay $1,006. The most popular route, (Billings Logan Intl - Chicago O'Hare Intl), can usually be booked for $323.

  • 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

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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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$314Average$565FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$439Average$640FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$518Average$608FlexibilityNo cancel feeOn-time69%
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