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Cheap flights from Boston to Louisville from $79

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 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Louisville

Cheap round-trip flights

Spirit Airlines Logo
6:10 am - 10:04 pmBOS-SDF
15h 54m1 stop
Spirit Airlines Logo
8:23 am - 11:57 pmSDF-BOS
15h 34m1 stop
$193Spirit Airlines
Find Deal
sáb., sep. 13 - sáb., sep. 20
Spirit Airlines Logo
3:00 pm - 10:04 pmBOS-SDF
7h 04m1 stop
Spirit Airlines Logo
8:23 am - 11:57 pmSDF-BOS
15h 34m1 stop
$196Spirit Airlines
Find Deal
sáb., sep. 13 - mar., sep. 16
Delta Logo
11:45 am - 2:27 pmBOS-SDF
2h 42mnonstop
Delta Logo
4:20 pm - 6:59 pmSDF-BOS
2h 39mnonstop
$197Delta
Find Deal
mié., sep. 3 - mar., sep. 9
American Airlines Logo
10:31 am - 1:03 pmBOS-SDF
2h 32mnonstop
American Airlines Logo
7:00 am - 3:06 pmSDF-BOS
8h 06m1 stop
$203American Airlines
Find Deal
mar., sep. 9 - mar., sep. 16
Delta Logo
11:45 am - 2:27 pmBOS-SDF
2h 42mnonstop
Delta Logo
5:40 pm - 8:16 pmSDF-BOS
2h 36mnonstop
$207Delta
Find Deal
mié., sep. 3 - sáb., sep. 6
Logo
6:55 pm - 10:04 pmBOS-SDF
27h 09m1 stop
Logo
11:17 am - 11:13 amSDF-BOS
23h 56m1 stop
$211
Find Deal
mié., sep. 3 - lun., sep. 8
Logo
2:53 pm - 9:19 amBOS-SDF
18h 26m1 stop
Logo
11:17 am - 1:48 pmSDF-BOS
26h 31m2 stops
$221
Find Deal
jue., sep. 4 - lun., sep. 8
American Airlines Logo
8:35 am - 5:38 pmBOS-SDF
9h 03m1 stop
American Airlines Logo
1:44 pm - 4:10 pmSDF-BOS
2h 26mnonstop
$237American Airlines
Find Deal
vie., sep. 5 - lun., sep. 8
Southwest Logo
5:20 am - 3:05 pmBOS-SDF
9h 45m2 stops
Southwest Logo
3:10 pm - 10:15 pmSDF-BOS
7h 05m1 stop
$242Southwest
Find Deal
sáb., sep. 13 - sáb., sep. 20
Southwest Logo
10:45 am - 5:40 pmBOS-SDF
6h 55m2 stops
Southwest Logo
1:15 pm - 10:15 pmSDF-BOS
9h 00m2 stops
$247Southwest
Find Deal
jue., sep. 4 - lun., sep. 8

Delta flights from Boston to Louisville

Our best Delta deals on Boston to Louisville flight tickets
Delta
Sep 3
BOS11:45 amBoston Logan Intl
2h 42m
SDF2:27 pmLouisville Intl
Sep 9
SDF4:20 pmLouisville Intl
2h 39m
BOS6:59 pmBoston Logan Intl
$197
Find similar
Delta
Sep 3
BOS11:45 amBoston Logan Intl
2h 42m
SDF2:27 pmLouisville Intl
Sep 6
SDF5:40 pmLouisville Intl
2h 36m
BOS8:16 pmBoston Logan Intl
$207
Find similar
Delta
Sep 13
BOS2:40 pmBoston Logan Intl
2h 35m
SDF5:15 pmLouisville Intl
Sep 20
SDF5:00 pmLouisville Intl
2h 40m
BOS7:40 pmBoston Logan Intl
$217
Find similar

Spirit Airlines flights from Boston to Louisville

Our best Spirit Airlines deals on Boston to Louisville flight tickets
Spirit Airlines
Sep 13
BOS6:10 amBoston Logan Intl
15h 54m
1 stop
SDF10:04 pmLouisville Intl
Sep 20
SDF8:23 amLouisville Intl
15h 34m
1 stop
BOS11:57 pmBoston Logan Intl
$193
Find similar
Spirit Airlines
Sep 13
BOS3:00 pmBoston Logan Intl
7h 04m
1 stop
SDF10:04 pmLouisville Intl
Sep 16
SDF8:23 amLouisville Intl
15h 34m
1 stop
BOS11:57 pmBoston Logan Intl
$196
Find similar
Spirit Airlines
Sep 6
BOS3:00 pmBoston Logan Intl
7h 04m
1 stop
SDF10:04 pmLouisville Intl
Sep 7
SDF10:14 amLouisville Intl
27h 34m
1 stop
BOS1:48 pmBoston Logan Intl
$199
Find similar

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 agosto 14, 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

sáb. 9/13

6:10 am-10:04 pm

1 stop15h 54m

Louisville Intl

sáb. 9/20

8:23 am-11:57 pm

1 stop15h 34m

$193

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

sáb. 9/13

3:00 pm-10:04 pm

1 stop7h 04m

Louisville Intl

mar. 9/16

8:23 am-11:57 pm

1 stop15h 34m

$196

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

mié. 9/3

11:45 am-2:27 pm

Nonstop2h 42m

Louisville Intl

mar. 9/9

4:20 pm-6:59 pm

Nonstop2h 39m

$197

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

mar. 9/9

10:31 am-1:03 pm

Nonstop2h 32m

Louisville Intl

mar. 9/16

7:00 am-3:06 pm

1 stop8h 06m

$203

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

mié. 9/3

11:45 am-2:27 pm

Nonstop2h 42m

Louisville Intl

sáb. 9/6

5:40 pm-8:16 pm

Nonstop2h 36m

$207

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

mié. 9/3

6:55 pm-10:04 pm

1 stop27h 09m

Louisville Intl

lun. 9/8

11:17 am-11:13 am

1 stop23h 56m

$211

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

jue. 9/4

2:53 pm-9:19 am

1 stop18h 26m

Louisville Intl

lun. 9/8

11:17 am-1:48 pm

2 stops26h 31m

$221

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

vie. 9/5

8:35 am-5:38 pm

1 stop9h 03m

Louisville Intl

lun. 9/8

1:44 pm-4:10 pm

Nonstop2h 26m

$237

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

sáb. 9/13

5:20 am-3:05 pm

2 stops9h 45m

Louisville Intl

sáb. 9/20

3:10 pm-10:15 pm

1 stop7h 05m

$242

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

jue. 9/4

10:45 am-5:40 pm

2 stops6h 55m

Louisville Intl

lun. 9/8

1:15 pm-10:15 pm

2 stops9h 00m

$247

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 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 $342.

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 $335. 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 $425. 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 $368. 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 $375 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 $324 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?

No. A direct flight is the cheapest option for a flight between Boston to Louisville.

How have Boston to Louisville flight prices changed over time?

As of August 2025, prices for Boston to Louisville flights are approximately 18% 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

$79

Fastest flight time

2h 32m

Direct flights

Every day

Airports in Louisville

1 airport
The best one-way flight to Louisville from Boston in the past 72 hours is $79. The best round-trip flight deal from Boston to Louisville found on momondo in the last 72 hours is $193.
The fastest flight from Boston to Louisville takes 2h 32m
Direct flights go from Boston to Louisville every day.
There is 1 airport near Louisville: Louisville Intl (SDF)
Search flight deals

  • 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 32m 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 $157Free CancellationRating
6.3
8,045 reviews
Search Spirit Airlines flights
DeltaPriceFrom $232Free CancellationRating
8.0
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $249Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

  • Delta Flights From Boston to Louisville

    Across 5 Delta flights from Boston to Louisville this week, the average price was $380, with the best Delta deals starting from $232 round-trip. 7,980 users have rated Delta on momondo, with an average score of 8.0/10.

  • American Airlines Flights From Boston to Louisville

    American Airlines (7.2/10 from 10,000 reviews) operates around 6 flights from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $379, with deals from around $249 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
Brandenburg
Georgetown

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.

An easier way to manage your Louisville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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