Cheap flights from Boston to Louisville from $120

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 9/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:30 am - 12:10 pm
BOS
-
SDF
2h 40mnonstop
Delta Logo
1:00 pm - 3:35 pm
SDF
-
BOS
2h 35mnonstop
$394Delta
Wed, Sep 9 - Sun, Sep 13
Multiple Airlines Logo
8:41 am - 8:36 am
BOS
-
SDF
23h 55m
1 stop
Multiple Airlines Logo
9:02 am - 9:05 am
SDF
-
BOS
24h 03m
2 stops
$395Multiple Airlines
Fri, Jul 10 - Fri, Jul 17
American Airlines Logo
6:00 am - 2:51 pm
BOS
-
SDF
8h 51m
1 stop
American Airlines Logo
6:59 pm - 9:30 pm
SDF
-
BOS
2h 31mnonstop
$396American Airlines
Fri, Aug 14 - Sat, Aug 22
Delta Logo
9:00 am - 1:33 pm
BOS
-
SDF
4h 33m
1 stop
Delta Logo
12:50 pm - 3:31 pm
SDF
-
BOS
2h 41mnonstop
$397Delta
Wed, Sep 23 - Tue, Sep 29
Southwest Logo
5:25 am - 3:15 pm
BOS
-
SDF
9h 50m
2 stops
Southwest Logo
10:00 am - 6:55 pm
SDF
-
BOS
8h 55m
2 stops
$398Southwest
Tue, Sep 1 - Sun, Sep 6
Southwest Logo
12:40 pm - 8:30 pm
BOS
-
SDF
7h 50m
2 stops
Southwest Logo
11:20 am - 3:15 pm
SDF
-
BOS
3h 55m
1 stop
$399Southwest
Fri, Sep 25 - Sat, Oct 3
American Airlines Logo
6:40 am - 4:29 pm
BOS
-
SDF
9h 49m
1 stop
American Airlines Logo
5:00 pm - 7:30 pm
SDF
-
BOS
2h 30mnonstop
$401American Airlines
Wed, Nov 11 - Sun, Nov 15
Multiple Airlines Logo
8:47 am - 8:36 am
BOS
-
SDF
23h 49m
1 stop
Multiple Airlines Logo
9:10 pm - 1:27 am
SDF
-
BOS
28h 17m
2 stops
$402Multiple Airlines
Fri, Jun 26 - Mon, Jun 29
Southwest Logo
9:40 am - 3:30 pm
BOS
-
SDF
5h 50m
1 stop
Southwest Logo
10:40 am - 4:25 pm
SDF
-
BOS
5h 45m
1 stop
$403Southwest
Thu, Aug 27 - Sun, Aug 30
Delta Logo
9:30 am - 12:07 pm
BOS
-
SDF
2h 37mnonstop
Delta Logo
11:45 am - 5:31 pm
SDF
-
BOS
5h 46m
1 stop
$404Delta
Wed, Sep 30 - Sun, Oct 4

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Delta flights from Boston to Louisville

Our best Delta deals on Boston to Louisville flight tickets
Delta
Sep 23
BOS9:00 amBoston Logan Intl
4h 33m
1 stop
SDF1:33 pmLouisville Intl
Sep 29
SDF12:50 pmLouisville Intl
2h 41m
BOS3:31 pmBoston Logan Intl
$397
Delta
Sep 30
BOS9:30 amBoston Logan Intl
2h 37m
SDF12:07 pmLouisville Intl
Oct 4
SDF11:45 amLouisville Intl
5h 46m
1 stop
BOS5:31 pmBoston Logan Intl
$404
Delta
Jul 11
BOS12:15 pmBoston Logan Intl
2h 47m
SDF3:02 pmLouisville Intl
Jul 13
SDF6:00 amLouisville Intl
6h 18m
1 stop
BOS12:18 pmBoston Logan Intl
$405

United Airlines flights from Boston to Louisville

Our best United Airlines deals on Boston to Louisville flight tickets
United Airlines
Sep 23
BOS5:45 amBoston Logan Intl
4h 33m
1 stop
SDF10:18 amLouisville Intl
Sep 29
SDF6:00 amLouisville Intl
8h 35m
2 stops
BOS2:35 pmBoston Logan Intl
$460
United Airlines
Jun 20
BOS9:30 amBoston Logan Intl
10h 53m
2 stops
SDF8:23 pmLouisville Intl
Jun 27
SDF6:00 amLouisville Intl
7h 32m
2 stops
BOS1:32 pmBoston Logan Intl
$567
United Airlines
Jun 18
BOS6:00 amBoston Logan Intl
8h 37m
2 stops
SDF2:37 pmLouisville Intl
Jun 22
SDF6:25 amLouisville Intl
8h 15m
2 stops
BOS2:40 pmBoston Logan Intl
$579

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 June 13, 2026.
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

Cheapest round-trip
Quickest round-trip

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 9/9

9:30 am-12:10 pm

Nonstop2h 40m

Louisville Intl

Sun 9/13

1:00 pm-3:35 pm

Nonstop2h 35m

$394

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 7/10

8:41 am-8:36 am

1 stop23h 55m

Louisville Intl

Fri 7/17

9:02 am-9:05 am

2 stops24h 03m

$395

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 8/14

6:00 am-2:51 pm

1 stop8h 51m

Louisville Intl

Sat 8/22

6:59 pm-9:30 pm

Nonstop2h 31m

$396

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 9/23

9:00 am-1:33 pm

1 stop4h 33m

Louisville Intl

Tue 9/29

12:50 pm-3:31 pm

Nonstop2h 41m

$397

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Tue 9/1

5:25 am-3:15 pm

2 stops9h 50m

Louisville Intl

Sun 9/6

10:00 am-6:55 pm

2 stops8h 55m

$398

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/25

12:40 pm-8:30 pm

2 stops7h 50m

Louisville Intl

Sat 10/3

11:20 am-3:15 pm

1 stop3h 55m

$399

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 11/11

6:40 am-4:29 pm

1 stop9h 49m

Louisville Intl

Sun 11/15

5:00 pm-7:30 pm

Nonstop2h 30m

$401

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 6/26

8:47 am-8:36 am

1 stop23h 49m

Louisville Intl

Mon 6/29

9:10 pm-1:27 am

2 stops28h 17m

$402

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 8/27

9:40 am-3:30 pm

1 stop5h 50m

Louisville Intl

Sun 8/30

10:40 am-4:25 pm

1 stop5h 45m

$403

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 9/30

9:30 am-12:07 pm

Nonstop2h 37m

Louisville Intl

Sun 10/4

11:45 am-5:31 pm

1 stop5h 46m

$404

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 December is also very affordable. Most momondo users find prices during this month for around $380.

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 $383. 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 $465. 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 $434 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 $437 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 $275 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?

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 June 2026, prices for Boston to Louisville flights are approximately 89% 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

$288

Fastest flight time

2h 37m

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 $443.
The fastest flight from Boston to Louisville takes 2h 37m
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).

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 37m 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
DeltaPriceFrom $270Free CancellationRating
7.9
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $276Free CancellationRating
7.1
11,649 reviews
Search American Airlines flights
SouthwestPriceFrom $335Free CancellationRating
7.9
4,235 reviews
Search Southwest flights
United AirlinesPriceFrom $349Free CancellationRating
7.4
9,815 reviews
Search United Airlines flights
  • Delta Flights From Boston to Louisville

    Across 7 Delta flights from Boston to Louisville this week, the average price was $446, with the best Delta deals starting from $270 round-trip. 8,406 users have rated Delta on momondo, with an average score of 7.9/10.

  • American Airlines Flights From Boston to Louisville

    American Airlines (7.1/10 from 11,649 reviews) operates around 1 flight from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $422, 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.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
West Baden Springs
Bardstown
Shepherdsville
New Albany
Elizabeth
Charlestown
Brandenburg
Corydon
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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Mon 7/13
Mon 7/20

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