What airlines fly to Louisville?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Louisville from Boston according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 7 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

How many flights depart from Boston to Louisville on average per week?

The number of flights available between Boston and Louisville is 4 per week as of February 2026. The most frequent departure day is Wed, with 50% of weekly flights leaving on this day.

What is the cheapest airline that flies from Boston Logan Intl to Louisville Intl?

Spirit Airlines is the most popular carrier operating from Boston Logan Intl to Louisville Intl

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?

As of February 2026, there are 5 operators available to choose from 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.

$99 Cheap Flights from Boston to Louisville in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:22 pm - 12:21 pm

BOS

SDF

19h 59m

1 stop

12:09 pm - 9:33 pm

SDF

BOS

9h 24m

1 stop

$214Spirit Airlines

Tue, Mar 10 - Wed, Mar 18

12:35 pm - 1:26 pm

BOS

SDF

24h 51m

1 stop

3:33 pm - 5:15 pm

SDF

BOS

25h 42m

1 stop

$216Multiple Airlines

Sat, Feb 28 - Tue, Mar 3

11:16 am - 11:38 am

BOS

SDF

24h 22m

1 stop

7:48 pm - 11:59 pm

SDF

BOS

28h 11m

1 stop

$217Multiple Airlines

Thu, May 7 - Mon, May 11

6:10 pm - 2:38 pm

BOS

SDF

20h 28m

1 stop

12:09 pm - 9:33 pm

SDF

BOS

9h 24m

1 stop

$220Spirit Airlines

Mon, Mar 9 - Wed, Mar 18

7:00 am - 7:36 pm

BOS

SDF

12h 36m

1 stop

3:33 pm - 11:59 pm

SDF

BOS

8h 26m

1 stop

$225Spirit Airlines

Sat, May 9 - Tue, May 12

4:22 pm - 12:21 pm

BOS

SDF

19h 59m

1 stop

3:33 pm - 11:44 pm

SDF

BOS

8h 11m

1 stop

$226Spirit Airlines

Sun, Mar 8 - Tue, Mar 10

5:27 am - 2:38 pm

BOS

SDF

9h 11m

1 stop

2:26 pm - 11:53 am

SDF

BOS

21h 27m

1 stop

$227Multiple Airlines

Tue, Mar 3 - Thu, Mar 5

7:43 pm - 6:58 pm

BOS

SDF

23h 15m

1 stop

12:33 pm - 10:21 am

SDF

BOS

21h 48m

1 stop

$229Multiple Airlines

Thu, Apr 23 - Mon, Apr 27

6:10 pm - 2:38 pm

BOS

SDF

20h 28m

1 stop

1:19 pm - 10:01 pm

SDF

BOS

8h 42m

1 stop

$230Spirit Airlines

Mon, Mar 9 - Wed, Mar 11

4:22 pm - 12:21 pm

BOS

SDF

19h 59m

1 stop

9:13 pm - 10:29 am

SDF

BOS

37h 16m

2 stops

$231Multiple Airlines

Tue, Mar 10 - Mon, Mar 16

Spirit Airlines flights from Boston to Louisville

Our best Spirit Airlines deals on Boston to Louisville flight tickets

Spirit Airlines

Mar 10

BOS4:22 pmBoston Logan Intl

19h 59m

1 stop

SDF12:21 pmLouisville Intl

Mar 18

SDF12:09 pmLouisville Intl

9h 24m

1 stop

BOS9:33 pmBoston Logan Intl

$214

Spirit Airlines

Mar 9

BOS6:10 pmBoston Logan Intl

20h 28m

1 stop

SDF2:38 pmLouisville Intl

Mar 18

SDF12:09 pmLouisville Intl

9h 24m

1 stop

BOS9:33 pmBoston Logan Intl

$220

Spirit Airlines

May 9

BOS7:00 amBoston Logan Intl

12h 36m

1 stop

SDF7:36 pmLouisville Intl

May 12

SDF3:33 pmLouisville Intl

8h 26m

1 stop

BOS11:59 pmBoston Logan Intl

$225

American Airlines flights from Boston to Louisville

Our best American Airlines deals on Boston to Louisville flight tickets

American Airlines

Feb 21

BOS3:00 pmBoston Logan Intl

2h 51m

SDF5:51 pmLouisville Intl

Feb 24

SDF6:00 amLouisville Intl

8h 12m

1 stop

BOS2:12 pmBoston Logan Intl

$396

American Airlines

Feb 21

BOS3:00 pmBoston Logan Intl

2h 51m

SDF5:51 pmLouisville Intl

Feb 24

SDF1:30 pmLouisville Intl

2h 21m

BOS3:51 pmBoston Logan Intl

$397

American Airlines

Feb 17

BOS10:05 amBoston Logan Intl

2h 44m

SDF12:49 pmLouisville Intl

Feb 24

SDF6:00 amLouisville Intl

8h 12m

1 stop

BOS2:12 pmBoston Logan Intl

$401

Fly from

Fly to

Route

Depart

Return

Price

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 3/10

4:22 pm-12:21 pm

1 stop19h 59m

Louisville Intl

Wed 3/18

12:09 pm-9:33 pm

1 stop9h 24m

$214

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 2/28

12:35 pm-1:26 pm

1 stop24h 51m

Louisville Intl

Tue 3/3

3:33 pm-5:15 pm

1 stop25h 42m

$216

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 5/7

11:16 am-11:38 am

1 stop24h 22m

Louisville Intl

Mon 5/11

7:48 pm-11:59 pm

1 stop28h 11m

$217

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Mon 3/9

6:10 pm-2:38 pm

1 stop20h 28m

Louisville Intl

Wed 3/18

12:09 pm-9:33 pm

1 stop9h 24m

$220

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 5/9

7:00 am-7:36 pm

1 stop12h 36m

Louisville Intl

Tue 5/12

3:33 pm-11:59 pm

1 stop8h 26m

$225

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sun 3/8

4:22 pm-12:21 pm

1 stop19h 59m

Louisville Intl

Tue 3/10

3:33 pm-11:44 pm

1 stop8h 11m

$226

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 3/3

5:27 am-2:38 pm

1 stop9h 11m

Louisville Intl

Thu 3/5

2:26 pm-11:53 am

1 stop21h 27m

$227

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 4/23

7:43 pm-6:58 pm

1 stop23h 15m

Louisville Intl

Mon 4/27

12:33 pm-10:21 am

1 stop21h 48m

$229

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Mon 3/9

6:10 pm-2:38 pm

1 stop20h 28m

Louisville Intl

Wed 3/11

1:19 pm-10:01 pm

1 stop8h 42m

$230

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 3/10

4:22 pm-12:21 pm

1 stop19h 59m

Louisville Intl

Mon 3/16

9:13 pm-10:29 am

2 stops37h 16m

$231

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $373.

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 $342. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Boston to Louisville on a Monday will generally be more expensive and average around $448. 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 afternoon. Our users have found flights to Louisville in the afternoon for as low as $311. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $400 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 $392 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 $347 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 9% 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 February 2026, prices for Boston to Louisville flights are approximately 184% 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	$268
Fastest flight time	2h 39m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Boston in the past 72 hours is $268. The best round-trip flight deal from Boston to Louisville found on momondo in the last 72 hours is $347.

The fastest flight from Boston to Louisville takes 2h 39m

Direct flights go from Boston to Louisville every day.

There is 1 airport in Louisville. From Boston there are direct flights to 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 39m 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?
As of February 2026, there are 5 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to Louisville is Embraer 175 (88.75% of total bookings). The next most popular plane models are Airbus A220-300 (2.57%), Boeing 737-800 (1.61%), and Airbus A319 (1.61%).
What is the most popular airline from Boston to Louisville?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Boston to Louisville is American Airlines (55% of total bookings). The next most popular airlines are Delta (38%), Southwest (5%), and Spirit Airlines (1%).

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 Airlines	PriceFrom $100	Free Cancellation	Rating 6.3 8,442 reviews	Search Spirit Airlines flights
Delta	PriceFrom $209	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
American Airlines	PriceFrom $276	Free Cancellation	Rating 7.2 11,265 reviews	Search American Airlines flights
United Airlines	PriceFrom $289	Free Cancellation	Rating 7.4 9,273 reviews	Search United Airlines flights
Southwest	PriceFrom $310	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Delta Flights From Boston to Louisville
Across 1 Delta flight from Boston to Louisville this week, the average price was $388, with the best Delta deals starting from $209 round-trip. 8,180 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 11,265 reviews) operates around 3 flights from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $394, with deals from around $276 rare but found on momondo. Referenced prices are for round-trip Boston to Louisville flight searches in the last 72 hours.

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Brandenburg

Charlestown

Springfield

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

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Cheap flights from Boston to Louisville from $99

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 3/10. 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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Spirit Airlines flights from Boston to Louisville

Our best Spirit Airlines deals on Boston to Louisville flight tickets

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Our best American Airlines deals on Boston to Louisville flight tickets

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How to get the cheapest flight ticket from Boston to Louisville

What is the cheapest month to fly to Louisville?

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

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

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

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

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

Can stopping save me money on Boston to Louisville flights?

How have Boston to Louisville flight prices changed over time?

What is the cheapest airline that flies from Boston Logan Intl to Louisville Intl?

What airlines fly to Louisville?

How many flights depart from Boston to Louisville on average per week?

When to book flights from Boston to Louisville

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

Fastest flight time

Direct flights

Airports in Louisville

Best airlines flying from Boston to Louisville

Compare and see reviews for airlines that fly from Boston to Louisville with momondo

Delta Flights From Boston to Louisville

American Airlines Flights From Boston to Louisville

Traveling to a place near Louisville?

Why use momondo?

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

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

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

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Kentucky

Fly your favorite airline to Louisville

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Louisville

List of cabin classes available on flights landing in Louisville. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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