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$269+ Cheap flights from Billings to Louisville (BIL - SDF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SDF
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Billings to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Louisville (SDF). 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 August 18, 2025.

Round-trip from

$269
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$321
From Billings Logan Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Billings to Louisville

Cheapest flights from Billings to Louisville
Explore the most affordable flight options available from Billings to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/206:00 amBIL - SDF
1 stop6h 03mAmerican Airlines
Sat 9/276:12 pmSDF - BIL
1 stop6h 27mAmerican Airlines
Deal found 8/17$269
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/2012:00 pmBIL - SDF
1 stop8h 24mUnited Airlines
Sat 9/279:55 amSDF - BIL
2 stops12h 54mUnited Airlines
Deal found 8/17$354
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 10/57:03 amBIL - SDF
1 stop8h 29mAmerican Airlines
Fri 10/106:45 amSDF - BIL
1 stop7h 05mAmerican Airlines
Deal found 8/17$399
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 9/812:00 pmBIL - SDF
1 stop8h 24mUnited Airlines
Thu 9/187:20 amSDF - BIL
1 stop5h 56mUnited Airlines
Deal found 8/18$429
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 8/215:49 amBIL - SDF
1 stop6h 23mAmerican Airlines
Sat 8/232:49 pmSDF - BIL
1 stop6h 02mAmerican Airlines
Deal found 8/17$439
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/287:00 amBIL - SDF
1 stop5h 32mUnited Airlines
Thu 10/210:55 amSDF - BIL
2 stops11h 54mUnited Airlines
Deal found 8/18$446
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 9/2112:19 pmBIL - SDF
1 stop19h 05mAmerican Airlines
Thu 9/254:42 pmSDF - BIL
1 stop7h 07mAmerican Airlines
Deal found 8/17$523
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 8/2112:00 pmBIL - SDF
1 stop6h 28mUnited Airlines
Sat 8/2310:55 amSDF - BIL
2 stops13h 04mUnited Airlines
Deal found 8/17$524

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Louisville 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 August 18, 2025.
Use the filters below to find and compare flights from Billings to Louisville that are best for you.

Fly from

Billings

Fly to

Louisville

Route

Depart

Return

Price

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sat 9/20

6:00 am-2:03 pm

1 stop6h 03m

Louisville Intl

Sat 9/27

6:12 pm-10:39 pm

1 stop6h 27m

$269

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sat 9/20

12:00 pm-10:24 pm

1 stop8h 24m

Louisville Intl

Sat 9/27

9:55 am-8:49 pm

2 stops12h 54m

$354

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sun 10/5

6:00 am-2:20 pm

1 stop6h 20m

Louisville Intl

Fri 10/10

6:45 am-11:50 am

1 stop7h 05m

$399

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Mon 9/8

12:00 pm-10:24 pm

1 stop8h 24m

Louisville Intl

Thu 9/18

7:20 am-11:16 am

1 stop5h 56m

$429

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sun 9/28

6:00 am-2:20 pm

1 stop6h 20m

Louisville Intl

Thu 10/2

6:12 pm-10:39 pm

1 stop6h 27m

$439

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sun 9/28

7:00 am-2:32 pm

1 stop5h 32m

Louisville Intl

Thu 10/2

10:55 am-8:49 pm

2 stops11h 54m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Billings to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville 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.

Cheapflights Insights

Everything you need to know about your flight from Billings to Louisville

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

Currently, January is the cheapest month in which you can book a flight from Billings to Louisville (average of $299). Flying from Billings to Louisville in April is currently the most expensive (average of $369). 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.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated August 18, 2025.
See what other customers who have flown with United Airlines and American Airlines from Billings to Louisville 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.
United Airlines
7.4
Good
8,925 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,925 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Billings to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Billings to Louisville?

    Airlines like American Airlines and United Airlines fly from Billings to Louisville in about 6h 03m. The time it takes to get you to your destination can typically vary by up to 2h 21m. Airlines will cover a distance of 1278 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Billings to Louisville round-trip?

    Flying on American Airlines is currently your cheapest option to Louisville, with prices starting at $268. Another option worth looking into is United Airlines, starting at $293 round trip. Users have found that American Airlines is 50% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Billings to Louisville 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 Louisville?

    Currently, January is the cheapest month in which you can book a flight from Billings to Louisville (average of $299). Flying from Billings to Louisville in April is currently the most expensive (average of $369). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 2 airlines flying from Billings to Louisville

Discover the top 2 airlines that operate flights from Billings to Louisville. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$518FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$293Average$422FlexibilityNo cancel feeOn-time69%

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