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

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

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 6 per week as of July 2026. The most frequent departure day is Fri, with 33% of weekly flights leaving on this day.

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 July 2026, there are 4 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.

$141 Cheap Flights from Boston to Louisville in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $394 to $555. The lowest price recently found on this route was $358.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Louisville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:03 pm - 4:40 pm

BOS

SDF

2h 37mnonstop

6:28 am - 3:03 pm

SDF

BOS

8h 35m

1 stop

$358American Airlines

Tue, Aug 25 - Tue, Sep 1

5:25 am - 3:20 pm

BOS

SDF

9h 55m

2 stops

3:20 pm - 10:20 pm

SDF

BOS

7h 00m

1 stop

$360Southwest

Tue, Aug 4 - Thu, Aug 6

8:41 am - 8:36 am

BOS

SDF

23h 55m

1 stop

9:24 pm - 9:09 am

SDF

BOS

11h 45m

1 stop

$361Multiple Airlines

Fri, Jul 31 - Thu, Aug 13

9:30 am - 12:12 pm

BOS

SDF

2h 42mnonstop

6:00 am - 11:23 am

SDF

BOS

5h 23m

1 stop

$365Delta

Tue, Aug 4 - Tue, Aug 11

5:35 am - 3:20 pm

BOS

SDF

9h 45m

2 stops

9:00 am - 3:45 pm

SDF

BOS

6h 45m

2 stops

$366Southwest

Tue, Aug 4 - Mon, Aug 10

1:35 pm - 4:16 pm

BOS

SDF

2h 41mnonstop

5:10 pm - 7:41 pm

SDF

BOS

2h 31mnonstop

$368American Airlines

Fri, Jul 31 - Wed, Aug 5

12:40 pm - 8:30 pm

BOS

SDF

7h 50m

2 stops

3:20 pm - 10:20 pm

SDF

BOS

7h 00m

1 stop

$370Southwest

Fri, Sep 11 - Mon, Sep 14

8:41 am - 8:36 am

BOS

SDF

23h 55m

1 stop

9:24 pm - 9:09 am

SDF

BOS

11h 45m

1 stop

$371Multiple Airlines

Fri, Aug 7 - Sun, Aug 16

9:30 am - 12:12 pm

BOS

SDF

2h 42mnonstop

2:09 pm - 10:33 pm

SDF

BOS

8h 24m

1 stop

$374Delta

Tue, Aug 4 - Mon, Aug 17

8:55 am - 2:18 pm

BOS

SDF

5h 23m

1 stop

11:17 am - 5:50 pm

SDF

BOS

6h 33m

1 stop

$375Delta

Tue, Aug 4 - Sat, Aug 8

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Southwest flights from Boston to Louisville

Our best Southwest deals on Boston to Louisville flight tickets

Southwest

Aug 4

BOS5:25 amBoston Logan Intl

9h 55m

2 stops

SDF3:20 pmLouisville Intl

Aug 6

SDF3:20 pmLouisville Intl

7h 00m

1 stop

BOS10:20 pmBoston Logan Intl

$360

Southwest

Aug 4

BOS5:35 amBoston Logan Intl

9h 45m

2 stops

SDF3:20 pmLouisville Intl

Aug 10

SDF9:00 amLouisville Intl

6h 45m

2 stops

BOS3:45 pmBoston Logan Intl

$366

Southwest

Sep 11

BOS12:40 pmBoston Logan Intl

7h 50m

2 stops

SDF8:30 pmLouisville Intl

Sep 14

SDF3:20 pmLouisville Intl

7h 00m

1 stop

BOS10:20 pmBoston Logan Intl

$370

United Airlines flights from Boston to Louisville

Our best United Airlines deals on Boston to Louisville flight tickets

United Airlines

Sep 3

BOS7:30 amBoston Logan Intl

4h 52m

1 stop

SDF12:22 pmLouisville Intl

Sep 8

SDF10:40 amLouisville Intl

6h 08m

1 stop

BOS4:48 pmBoston Logan Intl

$403

United Airlines

Aug 18

BOS7:30 amBoston Logan Intl

9h 08m

2 stops

SDF4:38 pmLouisville Intl

Aug 20

SDF1:14 pmLouisville Intl

4h 38m

1 stop

BOS5:52 pmBoston Logan Intl

$408

United Airlines

Jul 14

BOS12:35 pmBoston Logan Intl

10h 20m

2 stops

SDF10:55 pmLouisville Intl

Jul 25

SDF10:05 amLouisville Intl

9h 09m

1 stop

BOS7:14 pmBoston Logan Intl

$502

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/25

2:03 pm-4:40 pm

Nonstop2h 37m

Louisville Intl

Tue 9/1

6:28 am-3:03 pm

1 stop8h 35m

$358

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/4

5:25 am-3:20 pm

2 stops9h 55m

Louisville Intl

Thu 8/6

3:20 pm-10:20 pm

1 stop7h 00m

$360

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 7/31

8:41 am-8:36 am

1 stop23h 55m

Louisville Intl

Thu 8/13

9:24 pm-9:09 am

1 stop11h 45m

$361

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/4

9:30 am-12:12 pm

Nonstop2h 42m

Louisville Intl

Tue 8/11

6:00 am-11:23 am

1 stop5h 23m

$365

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/4

5:35 am-3:20 pm

2 stops9h 45m

Louisville Intl

Mon 8/10

9:00 am-3:45 pm

2 stops6h 45m

$366

Quickest round-trip

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 7/31

1:35 pm-4:16 pm

Nonstop2h 41m

Louisville Intl

Wed 8/5

5:10 pm-7:41 pm

Nonstop2h 31m

$368

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/11

12:40 pm-8:30 pm

2 stops7h 50m

Louisville Intl

Mon 9/14

3:20 pm-10:20 pm

1 stop7h 00m

$370

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 8/7

8:41 am-8:36 am

1 stop23h 55m

Louisville Intl

Sun 8/16

9:24 pm-9:09 am

1 stop11h 45m

$371

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/4

9:30 am-12:12 pm

Nonstop2h 42m

Louisville Intl

Mon 8/17

2:09 pm-10:33 pm

1 stop8h 24m

$374

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 8/4

8:55 am-2:18 pm

1 stop5h 23m

Louisville Intl

Sat 8/8

11:17 am-5:50 pm

1 stop6h 33m

$375

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 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 December is also very affordable. Most momondo users find prices during this month for around $386.

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 $384. 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 $489. 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 $355. In the morning is when there is more demand to fly to Louisville, so prices are often more expensive at around $439 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 from Boston 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 $439 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 $375 on momondo.

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

There are 4 cabin classes available to choose from on Boston to Louisville 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 July 2026, prices for Boston to Louisville flights are approximately 21% cheaper 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	$288
Fastest flight time	2h 34m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Boston in the past 72 hours is $288. The best round-trip flight deal from Boston to Louisville found on momondo in the last 72 hours is $394.

The fastest flight from Boston to Louisville takes 2h 34m

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

Frequently asked questions about flying from Boston to Louisville

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 34m 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 July 2026, there are 4 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 (92.12% of total bookings). The next most popular plane models are Airbus A220-300 (1.36%), Airbus A319 (1.09%), and Boeing 737-800 (0.82%).
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 (54% of total bookings). The next most popular airlines are Delta (39%), Southwest (5%), and United Airlines (2%).

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
Delta	PriceFrom $272	Free Cancellation	Rating 7.8 8,454 reviews	Search Delta flights
American Airlines	PriceFrom $281	Free Cancellation	Rating 7.1 11,765 reviews	Search American Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights
United Airlines	PriceFrom $349	Free Cancellation	Rating 7.4 9,930 reviews	Search United Airlines flights

Delta Flights From Boston to Louisville
Across 4 Delta flights from Boston to Louisville this week, the average price was $455, with the best Delta deals starting from $272 round-trip. 8,454 users have rated Delta on momondo, with an average score of 7.8/10.
American Airlines Flights From Boston to Louisville
American Airlines (7.1/10 from 11,765 reviews) operates around 2 flights from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $433, with deals from around $281 rare but found on momondo. Referenced prices are for round-trip Boston to Louisville flight searches in the last 72 hours.

French Lick

Elizabethtown

Jeffersonville

West Baden Springs

Bardstown

Shepherdsville

New Albany

Elizabeth

Charlestown

Corydon

Brandenburg

Georgetown

Springfield

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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Cheap flights from Boston to Louisville from $141

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 7/17. 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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Southwest flights from Boston to Louisville

Our best Southwest deals on Boston to Louisville flight tickets

United Airlines flights from Boston to Louisville

Our best United 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 typical price of a round-trip flight between Boston and 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 from Boston to Louisville?

What cabin class options are available on Boston to Louisville 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

Frequently asked questions about flying 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

Delta Flights From Boston to Louisville

American Airlines Flights From Boston to Louisville

Traveling to a place near Louisville?

Why use momondo?

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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