HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$98+ Cheap flights from Boston to Louisville (BOS - SDF)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDF
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Louisville Intl are usually found in August or March, booked 64 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Boston to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$223
(American Airlines)

One-way from

$98
(Mytrip)

Popular in

November

Cheapest in

August

Average price

$474

Good round-trip deal

$347 or less

Good one-way deal

$258 or less
Provider with most accurate pricing for Boston Logan Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Louisville Intl flights.
Search Deals
From Boston Logan Intl to Louisville Intl
Search Deals
One-way flight from Boston Logan Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Louisville Intl.
Search Deals

Find flight deals from Boston to Louisville

Cheapest flights from Boston to Louisville
Explore the most affordable flight options available from Boston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:56 amBOS - SDF
2 stops24h 04mMultiple Airlines
Mon 12/1511:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/12$228
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:11 pmBOS - SDF
2 stops38h 49mSpirit Airlines
Mon 12/1511:55 amSDF - BOS
1 stop12h 01mSpirit Airlines
Deal found 11/12$229
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:11 pmBOS - SDF
2 stops38h 49mMultiple Airlines
Mon 12/1511:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/12$230
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:28 amBOS - SDF
2 stops23h 03mMultiple Airlines
Mon 12/1511:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/12$234
This American Airlines deal was found by Cheapflights users on 11/13. 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 12/316:36 amBOS - SDF
1 stop10h 43mAmerican Airlines
Sat 1/31:00 pmSDF - BOS
Nonstop2h 28mAmerican Airlines
Deal found 11/13$239
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:45 amBOS - SDF
1 stop29h 15mSpirit Airlines
Mon 12/1511:55 amSDF - BOS
2 stops22h 06mSpirit Airlines
Deal found 11/12$242
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:45 amBOS - SDF
1 stop29h 15mMultiple Airlines
Mon 12/1511:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/12$252
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Wed 12/1010:56 amBOS - SDF
2 stops24h 04mMultiple Airlines
Fri 12/1211:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/11$254
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:11 pmBOS - SDF
2 stops36h 47mMultiple Airlines
Mon 12/1511:21 amSDF - BOS
1 stop12h 35mMultiple Airlines
Deal found 11/12$255
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/307:00 amBOS - SDF
Nonstop2h 58mAmerican Airlines
Tue 1/138:07 amSDF - BOS
1 stop8h 56mAmerican Airlines
Deal found 11/12$259
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:06 amBOS - SDF
1 stop27h 09mMultiple Airlines
Tue 1/65:05 amSDF - BOS
2 stops43h 59mMultiple Airlines
Deal found 11/11$266

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 November 13, 2025.
Use the filters below to find and compare flights from Boston to Louisville that are best for you.

Fly from

Boston

Fly to

Louisville

Route

Depart

Return

Price

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 12/13

10:15 am-1:10 pm

Nonstop2h 55m

Louisville Intl

Thu 12/18

4:31 pm-6:59 pm

Nonstop2h 28m

$304

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sun 12/21

5:15 pm-8:10 pm

Nonstop2h 55m

Louisville Intl

Tue 1/6

3:00 pm-5:26 pm

Nonstop2h 26m

$304

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 12/6

10:15 am-1:10 pm

Nonstop2h 55m

Louisville Intl

Tue 12/16

4:31 pm-6:59 pm

Nonstop2h 28m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 12/10

12:59 pm-3:50 pm

Nonstop2h 51m

Louisville Intl

Sat 12/13

12:10 pm-2:37 pm

Nonstop2h 27m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 12/9

12:59 pm-3:50 pm

Nonstop2h 51m

Louisville Intl

Sat 12/13

12:10 pm-2:37 pm

Nonstop2h 27m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 12/10

12:59 pm-3:50 pm

Nonstop2h 51m

Louisville Intl

Tue 12/16

4:31 pm-6:59 pm

Nonstop2h 28m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 12/17

12:59 pm-3:50 pm

Nonstop2h 51m

Louisville Intl

Tue 1/6

6:00 am-12:23 pm

1 stop6h 23m

$327

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 12/19

5:29 am-10:04 am

1 stop4h 35m

Louisville Intl

Tue 1/6

3:00 pm-5:26 pm

Nonstop2h 26m

$327

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 12/17

5:29 am-10:04 am

1 stop4h 35m

Louisville Intl

Sat 1/3

8:00 am-10:28 am

Nonstop2h 28m

$327

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 12/20

5:15 pm-8:10 pm

Nonstop2h 55m

Louisville Intl

Sun 1/4

8:00 am-10:28 am

Nonstop2h 28m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Boston 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 Boston to Louisville in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Boston-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-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 Boston-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 Boston to Louisville

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

How far ahead should I book a flight from Boston to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Louisville. Price data was last updated on November 7, 2025.

The price you pay for your flight from Boston to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from Boston to Louisville (average of $89). Flying from Boston to Louisville in March is currently the most expensive (average of $250). 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.

What is the cheapest time of day to fly from BOS to SDF?

Find hourly flight availability from Boston to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

It’s typically best to fly out from Boston to Louisville in the morning. Doing so could potentially save you 8% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Boston to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Boston to Louisville. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Boston to Louisville flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 13, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boston to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,017 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,051 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,139 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • What airports do I use to fly from Boston to Louisville?

    You will need to book a flight from Boston Logan Intl to Louisville Intl if you want to fly from Boston to Louisville. At least 5 different airlines have flights from Logan Intl (BOS) to Louisville Intl (SDF) on a regular basis. There is 1 flight to Louisville from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to SDF to be around 2h 40m.

  • How long is the flight from Boston to Louisville?

    There are many flights that can get you from Boston to Louisville in 2h 55m. Fly via Delta to get the fastest option. Boston and Louisville are separated by a distance of 827 mi. All flights are typically nonstop.

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

    Spirit Airlines, at $119, was found to be the cheapest airline from Boston to Louisville.Alternate airlines to your destination round-trip include United Airlines and Delta. Spirit Airlines is priced at 68% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Boston to Louisville?

    The top 3 most reliable airlines when flying from Boston to Louisville are KLM (100%), Scandinavian Airlines (100%) and American Airlines (95%).

  • What are the cheapest flights from Boston to Louisville?

    Looking at all options, your cheapest flight can be booked for $159. While the most popular route (Boston Logan Intl - Louisville Intl) can be booked for $270 on average, our data indicates $336 when flying from Boston to Louisville.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Boston to Louisville (average of $89). Flying from Boston to Louisville in March is currently the most expensive (average of $250). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Nashville flights
Boston to Cincinnati flights
Hartford to Nashville flights
Albany to Nashville flights
Boston to Knoxville flights
Boston to Lexington flights
Hartford to Knoxville flights
Hartford to Cincinnati flights
Boston to Evansville flights
Hartford to Lexington flights
Albany to Cincinnati flights
Albany to Knoxville flights
Albany to Louisville flights
Worcester to Nashville flights
Hartford to Louisville flights
Albany to Lexington flights
Boston to Blountville flights
West Tisbury to Nashville flights
Boston to Huntington flights
Albany to Blountville flights
Hartford to Blountville flights
Boston to Paducah flights
Albany to Evansville flights
Hartford to Evansville flights
Provincetown to Nashville flights
Boston to Owensboro flights
West Tisbury to Knoxville flights
Hartford to Owensboro flights

Top 5 airlines flying from Boston to Louisville

Discover the top 5 airlines that operate flights from Boston 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$119Average$234FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$201Average$419FlexibilityNo cancel feeOn-time69%
DeltaCheapest$244Average$383FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$402FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.