$154 Cheap Flights from Louisville (SDF) to Billings (BIL)

View $154 flight on Fri, Aug 8, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Billings Logan Intl. Airport (BIL)

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Cheap Flights from Louisville to Billings (SDF-BIL)

Prices were available within the past 7 days and start at $154 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 11 - Sat, Aug 23
SDF
Louisville
BIL
Billings
$269 Roundtrip, just found
$269
Roundtrip
just found
Select Delta flight, departing Mon, Aug 11 from Louisville to Billings, returning Sat, Aug 23, priced at $269 just found
American Airlines
Fri, Aug 8 - Mon, Aug 18
SDF
Louisville
BIL
Billings
$269 Roundtrip, just found
$269
Roundtrip
just found
Select American Airlines flight, departing Fri, Aug 8 from Louisville to Billings, returning Mon, Aug 18, priced at $269 just found
American Airlines
Tue, Aug 26 - Wed, Sep 10
SDF
Louisville
BIL
Billings
$273 Roundtrip, found 1 day ago
$273
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 26 from Louisville to Billings, returning Wed, Sep 10, priced at $273 found 1 day ago
Delta
Mon, Aug 11 - Tue, Aug 26
SDF
Louisville
BIL
Billings
$274 Roundtrip, just found
$274
Roundtrip
just found
Select Delta flight, departing Mon, Aug 11 from Louisville to Billings, returning Tue, Aug 26, priced at $274 just found
United
Tue, Aug 12 - Sat, Aug 16
SDF
Louisville
BIL
Billings
$276 Roundtrip, found 6 days ago
$276
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 12 from Louisville to Billings, returning Sat, Aug 16, priced at $276 found 6 days ago
American Airlines
Tue, Aug 26 - Wed, Sep 10
SDF
Louisville
BIL
Billings
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 26 from Louisville to Billings, returning Wed, Sep 10, priced at $278 found 1 day ago
Delta
Sat, Aug 23 - Fri, Sep 5
SDF
Louisville
BIL
Billings
$279 Roundtrip, just found
$279
Roundtrip
just found
Select Delta flight, departing Sat, Aug 23 from Louisville to Billings, returning Fri, Sep 5, priced at $279 just found
Delta
Fri, Oct 3 - Sat, Oct 4
SDF
Louisville
BIL
Billings
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 3 from Louisville to Billings, returning Sat, Oct 4, priced at $288 found 3 days ago
American Airlines
Wed, Aug 13 - Wed, Aug 20
SDF
Louisville
BIL
Billings
$292 Roundtrip, found 15 hours ago
$292
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Louisville to Billings, returning Wed, Aug 20, priced at $292 found 15 hours ago
Delta
Sun, Aug 31 - Sat, Sep 20
SDF
Louisville
BIL
Billings
$293 Roundtrip, just found
$293
Roundtrip
just found
Select Delta flight, departing Sun, Aug 31 from Louisville to Billings, returning Sat, Sep 20, priced at $293 just found

Find the cheapest month to fly from Louisville (SDF) to Billings (BIL)

August is typically the cheapest month to fly

From $268 - $575 per traveler.

Graph displaying average flight prices per month

Alternative airports near Billings

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BIL. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $510
BIL
Logan Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $510
Flights from Louisville (SDF) to Billings (BIL)
Origin airport
Louisville Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$268
Distance
1277 mi

Louisville to Billings Flights

The cheapest times to fly from Louisville to Billings

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Billings are during the month of August. You can find some of the cheapest flights from Louisville to Billings with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Billings

Sunday is one of the best days to book for cheap flights from Louisville to Billings: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Louisville to Billings

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Billings in 2025. You can also book with separate airlines for your outbound and return journeys, from $154 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Billings flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Billings airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL) cost?
Discover the latest flight deals from SDF to BIL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SDF to BIL?
The cheapest flights from SDF to BIL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SDF to BIL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SDF to BIL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL)?
There are no daily nonstop flights departing from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SDF to BIL?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL) last-minute?
Booking your ticket from SDF to BIL shortly before your trip is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a SDF to BIL flight and hotel package?
You can save money by securing a SDF to BIL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BIL)?
If you booked your SDF to BIL flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.