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Billings

$149+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIL
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Billings

Keep the following information in mind while searching for Illinois to Billings flight deals. Data was last updated May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(American Airlines)

One-way from

$149
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$415

Good round-trip deal

$359 or less
Provider with most accurate pricing for Chicago (CHI)-Billings Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Billings Logan Intl flights.
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From Illinois to Billings Logan Intl
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One-way flight from Illinois to Billings Logan Intl
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Highest demand for flights based on searches. 16% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Illinois to Billings Logan Intl.
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Find 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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 9/21:58 pmORD - BIL
1 stop7h 36mUnited Airlines
Sun 9/1412:00 pmBIL - ORD
Nonstop3h 00mUnited Airlines
Deal found 4/30$219
This American Airlines deal was found by Cheapflights users on 4/30. 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 8/66:00 amPIA - BIL
1 stop6h 58mAmerican Airlines
Wed 8/137:00 amBIL - PIA
1 stop7h 43mAmerican Airlines
Deal found 4/30$259
This American Airlines deal was found by Cheapflights users on 5/1. 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 9/48:45 pmORD - BIL
Nonstop3h 22mAmerican Airlines
Tue 9/912:35 pmBIL - ORD
Nonstop2h 58mAmerican Airlines
Deal found 5/1$265
This Delta deal was found by Cheapflights users on 5/1. 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 6/122:00 pmORD - BIL
2 stops11h 12mDelta
Sun 6/155:20 amBIL - ORD
1 stop5h 32mDelta
Deal found 5/1$274
This Delta deal was found by Cheapflights users on 4/30. 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 8/146:45 pmMDW - BIL
1 stop4h 53mDelta
Sun 8/246:25 amBIL - MDW
1 stop5h 37mDelta
Deal found 4/30$309
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 5/285:20 amSTL - BIL
1 stop5h 17mUnited Airlines
Wed 6/45:54 pmBIL - STL
1 stop5h 05mUnited Airlines
Deal found 4/30$313
This Delta deal was found by Cheapflights users on 4/30. 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 6/95:38 pmSTL - BIL
2 stops7h 34mDelta
Tue 6/105:20 amBIL - STL
2 stops12h 24mDelta
Deal found 4/30$323
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 10/48:50 amMLI - BIL
1 stop5h 27mUnited Airlines
Sat 10/112:33 pmBIL - MLI
1 stop4h 50mUnited Airlines
Deal found 4/29$329
This American Airlines deal was found by Cheapflights users on 5/1. 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 7/106:00 amSTL - BIL
1 stop7h 02mAmerican Airlines
Sat 7/196:00 amBIL - STL
1 stop13h 20mAmerican Airlines
Deal found 5/1$374
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 8/66:45 amPIA - BIL
2 stops7h 32mUnited Airlines
Wed 8/1312:50 pmBIL - PIA
1 stop7h 42mUnited Airlines
Deal found 4/30$395
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Thu 5/2910:10 amSTL - BIL
3 stops36h 21mMultiple Airlines
Wed 6/412:20 pmBIL - STL
2 stops19h 55mMultiple Airlines
Deal found 4/30$455
This Delta deal was found by Cheapflights users on 4/29. 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 5/256:00 amMLI - BIL
2 stops12h 17mDelta
Sat 5/3111:32 amBIL - MLI
2 stops10h 25mDelta
Deal found 4/29$459

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 May 1, 2025.
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

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Tue 9/2

1:58 pm-8:34 pm

1 stop7h 36m

Billings Logan Intl

Sun 9/14

12:00 pm-4:00 pm

Nonstop3h 00m

$219

PeoriaBillings

PIA - BIL

PIABIL

Greater Peoria

Wed 8/6

6:00 am-11:58 am

1 stop6h 58m

Billings Logan Intl

Wed 8/13

7:00 am-3:43 pm

1 stop7h 43m

$259

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 9/4

8:45 pm-11:07 pm

Nonstop3h 22m

Billings Logan Intl

Tue 9/9

12:35 pm-4:33 pm

Nonstop2h 58m

$265

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 6/12

2:00 pm-12:12 am

2 stops11h 12m

Billings Logan Intl

Sun 6/15

5:20 am-11:52 am

1 stop5h 32m

$274

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Thu 8/14

6:45 pm-10:38 pm

1 stop4h 53m

Billings Logan Intl

Thu 8/21

6:25 am-1:02 pm

1 stop5h 37m

$309

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Wed 5/28

5:20 am-9:37 am

1 stop5h 17m

Billings Logan Intl

Wed 6/4

5:54 pm-11:59 pm

1 stop5h 05m

$313

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Mon 6/9

5:38 pm-12:12 am

2 stops7h 34m

Billings Logan Intl

Tue 6/10

5:20 am-6:44 pm

2 stops12h 24m

$323

MolineBillings

MLI - BIL

MLIBIL

Moline Quad-City

Sat 10/4

8:50 am-1:17 pm

1 stop5h 27m

Billings Logan Intl

Sat 10/11

2:33 pm-8:23 pm

1 stop4h 50m

$329

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 7/10

6:00 am-12:02 pm

1 stop7h 02m

Billings Logan Intl

Sat 7/19

6:00 am-8:20 pm

1 stop13h 20m

$374

PeoriaBillings

PIA - BIL

PIABIL

Greater Peoria

Wed 8/6

6:45 am-1:17 pm

2 stops7h 32m

Billings Logan Intl

Wed 8/13

12:50 pm-9:32 pm

1 stop7h 42m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 23 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

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

Find hourly flight availability from Illinois to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

When flying from Illinois to Billings, 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 Billings by month

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

In terms of precipitation, rainfall in Billings ranges from 0.5 - 2.2 inches per month. May is typically the wettest month, when rainfall can reach 2.2 in. January is typically the driest time to visit Billings when rainfall is around 0.5 in.

Temperature in Billings by month

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

If weather is an important factor for your trip to Billings, 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 26.6 F).

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated May 1, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Illinois to Billings 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
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    One-way options have recently been found by users for as low as $149 on American Airlines. Other airlines that offer cheap prices include Delta from $162 and Alaska Airlines from $173 one-way.

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

    While some choose either Greater Peoria - Billings Logan Intl or Chicago Midway - 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 $420, our data shows the cheapest flight currently is $338. When looking at the most popular route, (Chicago O'Hare Intl - Billings Logan Intl), you can expect to pay $219 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.

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

    Currently, February is the cheapest month in which you can book a flight from Illinois to Billings (average of $396). Flying from Illinois to Billings in June is currently the most expensive (average of $560). 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 Illinois to Billings

Discover the top 3 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$380FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$319Average$570FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$591FlexibilityNo cancel feeOn-time71%

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