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$369+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SDF
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Billings to Louisville

Best flights from Billings to Louisville
Discover carefully curated flight deals from Billings to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

This United Airlines deal was found by Cheapflights users on 12/26. 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 2/142:35 pmBIL - SDF
1 stop6h 02mUnited Airlines
Tue 2/173:15 pmSDF - BIL
1 stop8h 06mUnited Airlines
Deal found 12/26$369
This Delta deal was found by Cheapflights users on 12/29. 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.
Tue 1/136:22 amBIL - SDF
2 stops9h 10mDelta
Sat 1/1712:22 pmSDF - BIL
2 stops12h 09mDelta
Deal found 12/29$429
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/132:15 pmBIL - SDF
2 stops20h 17mAmerican Airlines
Sat 1/177:40 amSDF - BIL
1 stop7h 56mAmerican Airlines
Deal found 12/29$520
This United Airlines deal was found by Cheapflights users on 12/28. 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 1/176:30 amBIL - SDF
1 stop5h 56mUnited Airlines
Tue 1/208:30 amSDF - BIL
2 stops14h 53mUnited Airlines
Deal found 12/28$399
This Delta deal was found by Cheapflights users on 12/27. 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 1/115:15 amBIL - SDF
2 stops10h 17mDelta
Thu 1/1510:35 amSDF - BIL
2 stops10h 50mDelta
Deal found 12/27$541

Find 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 December 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$369
(United Airlines)

Popular in

May

Cheapest in

August

Average price

$563
Provider with most accurate pricing for Billings Logan Intl-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-Louisville Intl flights.
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From Billings Logan Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 29, 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 2/14

2:35 pm-10:37 pm

1 stop6h 02m

Louisville Intl

Tue 2/17

3:15 pm-9:21 pm

1 stop8h 06m

$369

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sat 1/17

6:30 am-2:26 pm

1 stop5h 56m

Louisville Intl

Tue 1/20

8:30 am-9:23 pm

2 stops14h 53m

$399

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Tue 1/13

6:22 am-5:32 pm

2 stops9h 10m

Louisville Intl

Sat 1/17

12:22 pm-10:31 pm

2 stops12h 09m

$429

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Tue 1/13

2:15 pm-12:32 pm

2 stops20h 17m

Louisville Intl

Sat 1/17

7:40 am-1:36 pm

1 stop7h 56m

$520

BillingsLouisville

BIL - SDF

BILSDF

Billings Logan Intl

Sun 1/11

5:15 am-5:32 pm

2 stops10h 17m

Louisville Intl

Thu 1/15

10:35 am-7:25 pm

2 stops10h 50m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Compare providers for flights from Billings to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to Louisville in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Billings-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billings-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Billings-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-Louisville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, December is the cheapest month in which you can book a flight from Billings to Louisville (average of $223). Flying from Billings to Louisville in January is currently the most expensive (average of $909). 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 December 29, 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
9,120 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,120 reviews
United Airlines
7.4
Good
9,120 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,072 reviews
United Airlines
7.4
Good
9,120 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 United Airlines fly from Billings to Louisville in about 6h 02m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1278 mi.

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

    Flying on United Airlines is currently your cheapest option to Louisville, with prices starting at $293. Another option worth looking into is American Airlines, starting at $374 round trip. Users have found that United Airlines is 52% 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, December is the cheapest month in which you can book a flight from Billings to Louisville (average of $223). Flying from Billings to Louisville in January is currently the most expensive (average of $909). 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 December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$498FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$374Average$590FlexibilityNo cancel feeOn-time71%

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