Cheap flights from Boston to Louisville from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Louisville departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
9:05 am - 4:35 pmBOS-SDF
7h 30m2 stops
Southwest Logo
12:55 pm - 9:05 pmSDF-BOS
8h 10m2 stops
$319Southwest
Find Deal
Tue, Dec 2 - Thu, Dec 4
American Airlines Logo
8:00 am - 4:29 pmBOS-SDF
8h 29m1 stop
American Airlines Logo
6:00 am - 2:19 pmSDF-BOS
8h 19m1 stop
$320American Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 24
Delta Logo
9:30 am - 12:08 pmBOS-SDF
2h 38mnonstop
Delta Logo
4:31 pm - 6:59 pmSDF-BOS
2h 28mnonstop
$321Delta
Find Deal
Sat, Nov 8 - Wed, Dec 10
American Airlines Logo
5:30 pm - 10:14 pmBOS-SDF
4h 44m1 stop
American Airlines Logo
5:00 am - 9:54 amSDF-BOS
4h 54m1 stop
$324American Airlines
Find Deal
Sat, Dec 20 - Mon, Dec 22
Southwest Logo
5:30 am - 12:30 pmBOS-SDF
7h 00m1 stop
Southwest Logo
1:50 pm - 9:35 pmSDF-BOS
7h 45m1 stop
$326Southwest
Find Deal
Thu, Dec 11 - Thu, Dec 11
Delta Logo
12:30 pm - 3:23 pmBOS-SDF
2h 53mnonstop
Delta Logo
4:15 pm - 6:46 pmSDF-BOS
2h 31mnonstop
$333Delta
Find Deal
Thu, Nov 20 - Sun, Nov 23
Spirit Airlines Logo
5:45 am - 5:53 pmBOS-SDF
12h 08m1 stop
Spirit Airlines Logo
8:31 pm - 8:49 pmSDF-BOS
24h 18m3 stops
$339Spirit Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
Spirit Airlines Logo
6:16 am - 6:16 pmBOS-SDF
12h 00m1 stop
Spirit Airlines Logo
7:11 pm - 3:00 pmSDF-BOS
19h 49m2 stops
$359Spirit Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
United Airlines Logo
10:25 am - 10:30 pmBOS-SDF
12h 05m2 stops
United Airlines Logo
5:40 am - 12:53 pmSDF-BOS
7h 13m1 stop
$370United Airlines
Find Deal
Wed, Dec 31 - Sat, Jan 3
United Airlines Logo
9:30 am - 5:16 pmBOS-SDF
7h 46m2 stops
United Airlines Logo
6:45 am - 12:23 pmSDF-BOS
5h 38m1 stop
$372United Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11

Southwest flights from Boston to Louisville

Our best Southwest deals on Boston to Louisville flight tickets
Southwest
Dec 2
BOS9:05 amBoston Logan Intl
7h 30m
2 stops
SDF4:35 pmLouisville Intl
Dec 4
SDF12:55 pmLouisville Intl
8h 10m
2 stops
BOS9:05 pmBoston Logan Intl
Southwest
Dec 11
BOS5:30 amBoston Logan Intl
7h 00m
1 stop
SDF12:30 pmLouisville Intl
Dec 11
SDF1:50 pmLouisville Intl
7h 45m
1 stop
BOS9:35 pmBoston Logan Intl
Southwest
Dec 30
BOS2:25 pmBoston Logan Intl
10h 05m
2 stops
SDF12:30 amLouisville Intl
Jan 3
SDF5:35 pmLouisville Intl
6h 45m
1 stop
BOS12:20 amBoston Logan Intl

American Airlines flights from Boston to Louisville

Our best American Airlines deals on Boston to Louisville flight tickets
American Airlines
Nov 5
BOS8:00 amBoston Logan Intl
8h 29m
1 stop
SDF4:29 pmLouisville Intl
Nov 24
SDF6:00 amLouisville Intl
8h 19m
1 stop
BOS2:19 pmBoston Logan Intl
American Airlines
Dec 20
BOS5:30 pmBoston Logan Intl
4h 44m
1 stop
SDF10:14 pmLouisville Intl
Dec 22
SDF5:00 amLouisville Intl
4h 54m
1 stop
BOS9:54 amBoston Logan Intl
American Airlines
Oct 31
BOS6:36 amBoston Logan Intl
6h 29m
1 stop
SDF1:05 pmLouisville Intl
Nov 4
SDF6:01 amLouisville Intl
8h 18m
1 stop
BOS2:19 pmBoston Logan Intl

momondo 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, momondo users made 832,500 searches. Data last updated October 22, 2025.
Use the filters below to find and compare flights from Boston to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 12/2

9:05 am-4:35 pm

2 stops7h 30m

Louisville Intl

Thu 12/4

12:55 pm-9:05 pm

2 stops8h 10m

$319

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 11/5

8:00 am-4:29 pm

1 stop8h 29m

Louisville Intl

Mon 11/24

6:00 am-2:19 pm

1 stop8h 19m

$320

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 11/8

9:30 am-12:08 pm

Nonstop2h 38m

Louisville Intl

Wed 12/10

4:31 pm-6:59 pm

Nonstop2h 28m

$321

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 12/20

5:30 pm-10:14 pm

1 stop4h 44m

Louisville Intl

Mon 12/22

5:00 am-9:54 am

1 stop4h 54m

$324

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 12/11

5:30 am-12:30 pm

1 stop7h 00m

Louisville Intl

Thu 12/11

1:50 pm-9:35 pm

1 stop7h 45m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 11/20

12:30 pm-3:23 pm

Nonstop2h 53m

Louisville Intl

Sun 11/23

4:15 pm-6:46 pm

Nonstop2h 31m

$333

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 11/20

5:45 am-5:53 pm

1 stop12h 08m

Louisville Intl

Sun 11/23

8:31 pm-8:49 pm

3 stops24h 18m

$339

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 11/14

6:16 am-6:16 pm

1 stop12h 00m

Louisville Intl

Sun 11/16

7:11 pm-3:00 pm

2 stops19h 49m

$359

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 12/31

10:25 am-10:30 pm

2 stops12h 05m

Louisville Intl

Sat 1/3

5:40 am-12:53 pm

1 stop7h 13m

$370

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 11/8

9:30 am-5:16 pm

2 stops7h 46m

Louisville Intl

Tue 11/11

6:45 am-12:23 pm

1 stop5h 38m

$372

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Louisville from

How to get the cheapest flight ticket from Boston to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Boston during the month March is also very affordable. Most momondo users find prices during this month for around $341.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Boston is on a Saturday. momondo users have found tickets for Saturday departures for as low as $343. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Boston to Louisville on a Sunday will generally be more expensive and average around $409. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Boston to Louisville flights are usually those with departure times in the morning. Our users have found flights to Louisville in the morning for as low as $376. In the evening is when there is more demand to fly to Louisville, so prices are often more expensive at around $409 per ticket.

What is the cheapest Boston Logan Intl to Louisville Intl flight route?

Fly from Boston Logan Intl to Louisville Intl for the best Boston Logan Intl - Louisville Intl flight prices

How far in advance should I book a flight to Louisville?

You are more likely to see cheaper flights to Louisville from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Boston for as low as $323 on momondo.

What cabin class options are available on Boston Logan Intl to Louisville Intl flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Louisville Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Louisville flights?

You could potentially save up to 7% on your flight if you consider stops on a Boston to Louisville flight.

How have Boston to Louisville flight prices changed over time?

As of October 2025, prices for Boston to Louisville flights are approximately 44% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Louisville (BOS to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Louisville

Best Price Found

$258

Fastest flight time

2h 38m

Direct flights

Every day

Airports in Louisville

1 airport
The best one-way flight to Louisville from Boston in the past 72 hours is $258. The best round-trip flight deal from Boston to Louisville found on momondo in the last 72 hours is $376.
The fastest flight from Boston to Louisville takes 2h 38m
Direct flights go from Boston to Louisville every day.
There is 1 airport near Louisville: Louisville Intl (SDF)
  • How far is Boston Logan Intl to Louisville Intl by plane?

    The straight-line distance from Boston Logan Intl to Louisville Intl is 822.9 mi. 2h 38m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Louisville Intl Airport?

    Prices for flights from Boston Logan Intl Airport to Louisville Intl Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Louisville Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to Louisville?

  • What is the most popular airline from Boston to Louisville?

Best airlines flying from Boston to Louisville

Compare and see reviews for airlines that fly from Boston to Louisville with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
8,098 reviews
Search Spirit Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.9
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $264Free CancellationRating
7.2
11,028 reviews
Search American Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
8,990 reviews
Search United Airlines flights
SouthwestPriceFrom $310Free CancellationRating
8.0
4,237 reviews
Search Southwest flights
  • Delta Flights From Boston to Louisville

    Across 5 Delta flights from Boston to Louisville this week, the average price was $383, with the best Delta deals starting from $246 round-trip. 7,981 users have rated Delta on momondo, with an average score of 7.9/10.

  • American Airlines Flights From Boston to Louisville

    American Airlines (7.2/10 from 11,028 reviews) operates around 6 flights from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $385, with deals from around $264 rare but found on momondo. Referenced prices are for round-trip Boston to Louisville flight searches in the last 72 hours.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Bardstown
Jeffersonville
Shepherdsville
New Albany
Corydon
Elizabeth
Charlestown
Springfield
Georgetown
Brandenburg

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Louisville?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Louisville for you.

Can I find flights from Boston to Louisville with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Louisville flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Louisville?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisville from Boston.

I’m not ready to book a flight from Boston to Louisville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.

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1 adult
Fri 11/21
Fri 11/28

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