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$153+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIL
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$294
(Delta)

One-way from

$153
(Delta)

Popular in

March

Cheapest in

January

Average price

$393

Good round-trip deal

$438 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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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 22, 2025.

This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 3/157:10 pmORD - BIL
1 stop5h 00mDelta
Wed 3/196:29 amBIL - ORD
1 stop4h 01mDelta
Deal found 2/20$294
This United deal was found by Cheapflights users on 2/21. 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.
Fri 7/49:15 amORD - BIL
Nonstop3h 16mUnited Airlines
Fri 7/115:51 pmBIL - ORD
1 stop5h 29mUnited Airlines
Deal found 2/21$320
This American Airlines deal was found by Cheapflights users on 2/19. 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 4/245:00 amORD - BIL
1 stop9h 28mAmerican Airlines
Wed 5/141:58 pmBIL - ORD
1 stop8h 59mAmerican Airlines
Deal found 2/19$354
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 3/157:13 pmMDW - BIL
1 stop4h 57mDelta
Wed 3/196:29 amBIL - MDW
1 stop6h 46mDelta
Deal found 2/20$354
This Delta deal was found by Cheapflights users on 2/21. 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 7/102:18 pmSTL - BIL
2 stops9h 20mDelta
Sat 7/196:25 amBIL - STL
1 stop4h 07mDelta
Deal found 2/21$391
This United Airlines deal was found by Cheapflights users on 2/21. 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 6/34:32 pmSTL - BIL
1 stop5h 42mUnited Airlines
Thu 6/52:38 pmBIL - STL
1 stop5h 10mUnited Airlines
Deal found 2/21$394
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sun 4/62:34 pmORD - BIL
1 stop19h 45mMultiple Airlines
Sun 4/132:55 pmBIL - ORD
3 stops39h 45mMultiple Airlines
Deal found 2/20$409
This American Airlines deal was found by Cheapflights users on 2/21. 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 8/17:23 amSTL - BIL
1 stop5h 33mAmerican Airlines
Fri 8/86:15 amBIL - STL
1 stop7h 20mAmerican Airlines
Deal found 2/21$459
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 9/149:00 pmORD - BIL
2 stops17h 15mAlaska Airlines
Thu 9/187:40 amBIL - ORD
1 stop15h 19mAlaska Airlines
Deal found 2/20$471
This Alaska Airlines deal was found by Cheapflights users on 2/21. 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.
Sun 9/77:30 pmSTL - BIL
1 stop28h 13mAlaska Airlines
Mon 9/153:35 pmBIL - STL
2 stops21h 17mAlaska Airlines
Deal found 2/21$480
This United Airlines deal was found by Cheapflights users on 2/21. 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 5/75:25 pmMLI - BIL
2 stops17h 14mUnited Airlines
Sun 5/112:40 pmBIL - MLI
1 stop5h 08mUnited Airlines
Deal found 2/21$513
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:00 amORD - BIL
1 stop10h 05mHawaiian Airlines
Sun 6/83:45 pmBIL - ORD
1 stop7h 11mHawaiian Airlines
Deal found 2/20$620

Find flights from Illinois to Billings within your budget

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 February 22, 2025.

Fly from

Illinois

Fly to

Billings

Route

Depart

Return

Price

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 3/15

7:10 pm-11:10 pm

1 stop5h 00m

Billings Logan Intl

Wed 3/19

6:29 am-11:30 am

1 stop4h 01m

$294

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Fri 7/4

9:15 am-11:31 am

Nonstop3h 16m

Billings Logan Intl

Fri 7/11

5:51 pm-12:20 am

1 stop5h 29m

$320

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 4/24

5:00 am-1:28 pm

1 stop9h 28m

Billings Logan Intl

Wed 5/14

1:58 pm-11:57 pm

1 stop8h 59m

$354

ChicagoBillings

MDW - BIL

MDWBIL

Chicago Midway

Sat 3/15

7:13 pm-11:10 pm

1 stop4h 57m

Billings Logan Intl

Wed 3/19

6:29 am-2:15 pm

1 stop6h 46m

$354

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 7/10

2:18 pm-10:38 pm

2 stops9h 20m

Billings Logan Intl

Sat 7/19

6:25 am-11:32 am

1 stop4h 07m

$391

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Tue 6/3

4:32 pm-9:14 pm

1 stop5h 42m

Billings Logan Intl

Thu 6/5

2:38 pm-8:48 pm

1 stop5h 10m

$394

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sun 4/6

2:34 pm-9:19 am

1 stop19h 45m

Billings Logan Intl

Sun 4/13

2:55 pm-7:40 am

3 stops39h 45m

$409

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 8/1

7:23 am-11:56 am

1 stop5h 33m

Billings Logan Intl

Fri 8/8

6:15 am-2:35 pm

1 stop7h 20m

$459

MolineBillings

MLI - BIL

MLIBIL

Moline Quad-City

Wed 5/7

5:25 pm-9:39 am

2 stops17h 14m

Billings Logan Intl

Sun 5/11

2:40 pm-8:48 pm

1 stop5h 08m

$513

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Fri 3/7

7:45 am-10:46 pm

1 stop16h 01m

Billings Logan Intl

Sat 3/22

1:22 pm-11:59 pm

1 stop9h 37m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 21 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.

Travel insights for flights from Illinois to Billings

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

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 February 22, 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 February 22, 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
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,700 reviews
Alaska Airlines
8.0
Very good
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,212 reviews
Alaska Airlines
8.0
Very good
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines
7.9
Good
2,314 reviews
Alaska Airlines
8.0
Very good
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,759 reviews
Alaska Airlines
8.0
Very good
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,700 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $153 on Delta. Other airlines that offer cheap prices include American Airlines from $193 and Alaska Airlines from $198 one-way.

  • 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 $728, our data shows the cheapest flight currently is $417. When looking at the most popular route, (Chicago O'Hare Intl - Billings Logan Intl), you can expect to pay $249 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 $624). 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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Alternative routes for Illinois to Billings

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$262Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$590FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$636FlexibilityNo cancel feeOn-time71%
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