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Cheap flights from Boston to Louisville from $86

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.
1 adult
0 bags

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Find the cheapest flights from Boston to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:43 pm - 2:41 pm
BOS
-
SDF
22h 58m2 stops
Multiple Airlines Logo
6:54 pm - 11:57 pm
SDF
-
BOS
29h 03m1 stop
$218Multiple Airlines
Wed, Jan 21 - Mon, Jan 26
Multiple Airlines Logo
5:34 am - 6:04 pm
BOS
-
SDF
12h 30m1 stop
Multiple Airlines Logo
4:39 pm - 10:46 am
SDF
-
BOS
18h 07m1 stop
$226Multiple Airlines
Fri, Jan 9 - Sun, Jan 11
Multiple Airlines Logo
6:10 pm - 11:05 am
BOS
-
SDF
16h 55m1 stop
Multiple Airlines Logo
9:30 am - 11:46 pm
SDF
-
BOS
14h 16m1 stop
$230Multiple Airlines
Fri, Feb 27 - Mon, Mar 2
Spirit Airlines Logo
5:27 pm - 2:41 pm
BOS
-
SDF
21h 14m1 stop
Spirit Airlines Logo
1:55 pm - 11:19 pm
SDF
-
BOS
9h 24m1 stop
$232Spirit Airlines
Sat, Jan 31 - Wed, Feb 4
Multiple Airlines Logo
5:27 pm - 6:04 pm
BOS
-
SDF
24h 37m1 stop
Multiple Airlines Logo
6:54 pm - 11:57 pm
SDF
-
BOS
29h 03m1 stop
$234Multiple Airlines
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
6:10 pm - 11:05 am
BOS
-
SDF
16h 55m1 stop
Multiple Airlines Logo
9:30 am - 11:46 pm
SDF
-
BOS
14h 16m1 stop
$236Multiple Airlines
Fri, Feb 27 - Mon, Mar 2
Spirit Airlines Logo
6:10 pm - 12:21 pm
BOS
-
SDF
18h 11m2 stops
Spirit Airlines Logo
3:33 pm - 11:46 pm
SDF
-
BOS
8h 13m1 stop
$240Spirit Airlines
Sun, Feb 22 - Tue, Feb 24
Multiple Airlines Logo
5:34 am - 2:41 pm
BOS
-
SDF
9h 07m1 stop
Multiple Airlines Logo
6:54 pm - 2:38 pm
SDF
-
BOS
19h 44m2 stops
$249Multiple Airlines
Thu, Jan 8 - Mon, Jan 12
Spirit Airlines Logo
6:10 pm - 12:21 pm
BOS
-
SDF
18h 11m2 stops
Spirit Airlines Logo
3:33 pm - 11:46 pm
SDF
-
BOS
8h 13m1 stop
$251Spirit Airlines
Sun, Feb 22 - Tue, Feb 24
Multiple Airlines Logo
12:43 pm - 11:05 am
BOS
-
SDF
22h 22m2 stops
Multiple Airlines Logo
9:30 am - 11:46 pm
SDF
-
BOS
14h 16m1 stop
$252Multiple Airlines
Fri, Feb 27 - Mon, Mar 2

Spirit Airlines flights from Boston to Louisville

Our best Spirit Airlines deals on Boston to Louisville flight tickets
Spirit Airlines
Jan 31
BOS5:27 pmBoston Logan Intl
21h 14m
1 stop
SDF2:41 pmLouisville Intl
Feb 4
SDF1:55 pmLouisville Intl
9h 24m
1 stop
BOS11:19 pmBoston Logan Intl
$232
Find similar
Spirit Airlines
Feb 22
BOS6:10 pmBoston Logan Intl
18h 11m
2 stops
SDF12:21 pmLouisville Intl
Feb 24
SDF3:33 pmLouisville Intl
8h 13m
1 stop
BOS11:46 pmBoston Logan Intl
$240
Find similar
Spirit Airlines
Feb 22
BOS6:10 pmBoston Logan Intl
18h 11m
2 stops
SDF12:21 pmLouisville Intl
Feb 24
SDF3:33 pmLouisville Intl
8h 13m
1 stop
BOS11:46 pmBoston Logan Intl
$251
Find similar

American Airlines flights from Boston to Louisville

Our best American Airlines deals on Boston to Louisville flight tickets
American Airlines
Feb 18
BOS12:25 pmBoston Logan Intl
8h 58m
1 stop
SDF9:23 pmLouisville Intl
Apr 1
SDF1:30 pmLouisville Intl
2h 21m
BOS3:51 pmBoston Logan Intl
$262
Find similar
American Airlines
Feb 18
BOS12:25 pmBoston Logan Intl
8h 58m
1 stop
SDF9:23 pmLouisville Intl
Apr 1
SDF5:00 amLouisville Intl
5h 06m
1 stop
BOS10:06 amBoston Logan Intl
$272
Find similar
American Airlines
Jan 21
BOS12:55 pmBoston Logan Intl
10h 24m
1 stop
SDF11:19 pmLouisville Intl
Jan 26
SDF8:07 amLouisville Intl
8h 36m
1 stop
BOS4:43 pmBoston Logan Intl
$278
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 December 26, 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

Wed 1/21

3:43 pm-2:41 pm

2 stops22h 58m

Louisville Intl

Mon 1/26

6:54 pm-11:57 pm

1 stop29h 03m

$218

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 1/9

5:34 am-6:04 pm

1 stop12h 30m

Louisville Intl

Sun 1/11

4:39 pm-10:46 am

1 stop18h 07m

$226

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 2/27

6:10 pm-11:05 am

1 stop16h 55m

Louisville Intl

Mon 3/2

9:30 am-11:46 pm

1 stop14h 16m

$230

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 1/31

5:27 pm-2:41 pm

1 stop21h 14m

Louisville Intl

Wed 2/4

1:55 pm-11:19 pm

1 stop9h 24m

$232

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 1/8

5:27 pm-6:04 pm

1 stop24h 37m

Louisville Intl

Mon 1/12

6:54 pm-11:57 pm

1 stop29h 03m

$234

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 2/27

6:10 pm-11:05 am

1 stop16h 55m

Louisville Intl

Mon 3/2

9:30 am-11:46 pm

1 stop14h 16m

$236

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sun 2/22

6:10 pm-12:21 pm

2 stops18h 11m

Louisville Intl

Tue 2/24

3:33 pm-11:46 pm

1 stop8h 13m

$240

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 1/8

5:34 am-2:41 pm

1 stop9h 07m

Louisville Intl

Mon 1/12

6:54 pm-2:38 pm

2 stops19h 44m

$249

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sun 2/22

6:10 pm-12:21 pm

2 stops18h 11m

Louisville Intl

Tue 2/24

3:33 pm-11:46 pm

1 stop8h 13m

$251

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 2/27

12:43 pm-11:05 am

2 stops22h 22m

Louisville Intl

Mon 3/2

9:30 am-11:46 pm

1 stop14h 16m

$252

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 $343.

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 $420. 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 $346. 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 $390 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 $339 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 December 2025, prices for Boston to Louisville flights are approximately 76% 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

$338

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 $338. The best round-trip flight deal from Boston to Louisville found on momondo in the last 72 hours is $377.
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?

  • 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 $110Free CancellationRating
6.3
8,204 reviews
Search Spirit Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.9
8,012 reviews
Search Delta flights
American AirlinesPriceFrom $278Free CancellationRating
7.2
11,061 reviews
Search American Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
United AirlinesPriceFrom $289Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights

  • Southwest Flights From Boston to Louisville

    Across 4 Southwest flights from Boston to Louisville this week, the average price was $402, with the best Southwest deals starting from $286 round-trip. 4,258 users have rated Southwest on momondo, with an average score of 8.0/10.

  • Delta Flights From Boston to Louisville

    Delta (7.9/10 from 8,012 reviews) operates around 5 flights from Boston to Louisville in any given week. The average Delta airfare for this route is around $392, with deals from around $246 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
Brandenburg
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.

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