What are the cheapest airlines flying from Boston to Louisville round-trip?

Spirit Airlines, at $157, was found to be the cheapest airline from Boston to Louisville.Alternate airlines to your destination round-trip include Delta and American Airlines. Spirit Airlines is priced at 58% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the cheapest flights from Boston to Louisville?

Looking at all options, your cheapest flight can be booked for $130. While the most popular route (Boston Logan Intl - Louisville Intl) can be booked for $185 on average our data indicates $270 when flying from Boston to Louisville.

What are the most reliable airlines from Boston to Louisville?

The top 3 most reliable airlines when flying from Boston to Louisville are Air France (100%), Korean Air (100%) and Virgin Atlantic (100%).

What are the most popular airlines that fly from Boston to Louisville?

The most popular airlines flying from Boston to Louisville are American Airlines, Delta and Spirit Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Boston to Louisville?

Saturday flights are found to be more expensive to fly from Boston to Louisville. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Louisville.

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

Users have found that booking a flight from Boston to Louisville at least 36 days early can save you up to 50% on average compared to booking a flight this week. If booking 36 days before your flight isn’t an option for you, users have found flights from Boston to Louisville for as little as $409 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $453 for flights departing within the next 3 days.

What is the cheapest month to fly from Boston to Louisville?

The best pricing can be found in the month of August. Prices to Louisville from Boston average $375. You can even find prices in August for less than $375, as users have found deals to Louisville from as low as $244. The month of May appears to be one of the more expensive times to travel to Louisville from Boston. Flying in the targeted month can save you up to 9%.

What airports do I use to fly from Boston to Louisville?

You will need to book a flight from Boston Logan Intl to Louisville Intl if you want to fly from Boston to Louisville. At least 5 different airlines have flights from Logan Intl (BOS) to Louisville Intl (SDF) on a regular basis. There is 1 flight to Louisville from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to SDF to be around 2h 35m.

Can I find deals for flights from Boston to Louisville that include hotel bookings?

Yes. In addition to deals on Boston to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Louisville?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Louisville.

Can I find deals for business class flights from Boston to Louisville?

Yes. Cheapflights offers flight deals from Boston to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$79+ Cheap Flights from Boston to Louisville

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Louisville Intl are usually found in August or March, booked 83 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Boston to Louisville

Round-trip from	$259 (Mytrip)
One-way from	$79 (FlightHub)
Popular in	May
Cheapest in	August
Average price	$340
Good round-trip deal	$297 or less
Good one-way deal	$130 or less

From Boston Logan Intl to Louisville Intl

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One-way flight from Boston Logan Intl to Louisville Intl

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Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).

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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Price to beat on a round-trip flight from Boston Logan Intl to Louisville Intl.

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Price to beat on a one-way flight from Boston Logan Intl to Louisville Intl.

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Find flight deals from Boston to Louisville

Cheapest flights from Boston to Louisville
Explore the most affordable flight options available from Boston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Mon 9/85:35 amBOS - SDF

1 stop6h 55mSouthwest

Mon 9/84:20 pmSDF - BOS

1 stop5h 55mSouthwest

Deal found 8/14

$259

Thu 9/412:15 pmBOS - SDF

1 stop10h 07mAmerican Airlines

Mon 9/81:44 pmSDF - BOS

Nonstop2h 26mAmerican Airlines

Deal found 8/14

$260

Fri 9/192:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Sun 9/218:23 amSDF - BOS

1 stop26h 50mSpirit Airlines

Deal found 8/13

$261

Fri 11/146:15 amBOS - SDF

1 stop17h 30mSpirit Airlines

Sun 11/1610:55 amSDF - BOS

1 stop13h 45mSpirit Airlines

Deal found 8/11

$263

Sat 9/201:00 pmBOS - SDF

1 stop4h 15mUnited Airlines

Sat 9/278:45 amSDF - BOS

2 stops7h 37mUnited Airlines

Deal found 8/12

$264

Thu 8/218:47 amBOS - SDF

1 stop6h 32mMultiple Airlines

Sun 8/243:59 pmSDF - BOS

1 stop20h 03mMultiple Airlines

Deal found 8/11

$265

Sun 9/212:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Fri 9/2610:14 amSDF - BOS

1 stop27h 34mSpirit Airlines

Deal found 8/12

$266

Mon 9/221:02 pmBOS - SDF

Nonstop2h 36mDelta

Tue 9/304:18 pmSDF - BOS

Nonstop2h 41mDelta

Deal found 8/12

$267

Fri 9/58:20 amBOS - SDF

2 stops6h 30mUnited Airlines

Sat 9/69:55 amSDF - BOS

2 stops6h 33mUnited Airlines

Deal found 8/14

$269

Sat 9/136:00 amBOS - SDF

2 stops16h 04mMultiple Airlines

Mon 9/1511:17 amSDF - BOS

3 stops26h 31mMultiple Airlines

Deal found 8/12

$270

Fri 11/77:00 amBOS - SDF

Nonstop2h 59mAmerican Airlines

Sun 11/96:00 amSDF - BOS

1 stop6h 48mAmerican Airlines

Deal found 8/12

$271

Best flights from Boston to Louisville
Discover carefully curated flight deals from Boston to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Wed 9/173:00 pmBOS - SDF

2 stops18h 19mSpirit Airlines

Mon 9/228:23 amSDF - BOS

1 stop15h 34mSpirit Airlines

Deal found 8/14

$259

Mon 9/85:35 amBOS - SDF

1 stop6h 55mSouthwest

Mon 9/84:20 pmSDF - BOS

1 stop5h 55mSouthwest

Deal found 8/14

$259

Thu 9/412:15 pmBOS - SDF

1 stop10h 07mAmerican Airlines

Mon 9/81:44 pmSDF - BOS

Nonstop2h 26mAmerican Airlines

Deal found 8/14

$260

Fri 9/54:27 pmBOS - SDF

1 stop5h 57mUnited Airlines

Sat 9/69:55 amSDF - BOS

2 stops6h 33mUnited Airlines

Deal found 8/14

$260

Mon 9/292:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Fri 10/38:23 amSDF - BOS

1 stop15h 34mSpirit Airlines

Deal found 8/14

$259

Wed 10/156:11 amBOS - SDF

1 stop10h 25mSpirit Airlines

Wed 10/225:31 pmSDF - BOS

2 stops20h 13mSpirit Airlines

Deal found 8/13

$260

Fri 9/192:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Sun 9/288:23 amSDF - BOS

1 stop26h 50mSpirit Airlines

Deal found 8/12

$261

Wed 9/173:00 pmBOS - SDF

2 stops18h 19mSpirit Airlines

Sun 9/288:23 amSDF - BOS

1 stop15h 34mSpirit Airlines

Deal found 8/12

$261

Fri 9/192:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Sun 9/218:23 amSDF - BOS

1 stop26h 50mSpirit Airlines

Deal found 8/13

$261

Thu 9/252:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Sun 9/288:23 amSDF - BOS

1 stop26h 50mSpirit Airlines

Deal found 8/14

$261

Thu 9/182:53 pmBOS - SDF

1 stop18h 26mSpirit Airlines

Sun 9/218:23 amSDF - BOS

1 stop26h 50mSpirit Airlines

Deal found 8/13

$261

Last-minute flights from Boston to Louisville
Discover last-minute flight deals from Boston to Louisville. Data last updated August 14, 2025 and is based on user searches.

Tue 8/1912:50 pmBOS - SDF

Nonstop2h 42mDelta

Sat 8/235:40 pmSDF - BOS

Nonstop2h 35mDelta

Deal found 8/14

$347

Tue 8/199:55 amBOS - SDF

Nonstop2h 45mAmerican Airlines

Sat 8/2310:40 amSDF - BOS

1 stop4h 27mAmerican Airlines

Deal found 8/14

$357

Wed 8/2012:50 pmBOS - SDF

Nonstop2h 42mDelta

Sun 8/246:00 amSDF - BOS

1 stop6h 24mDelta

Deal found 8/14

$393

Wed 8/203:15 pmBOS - SDF

1 stop7h 25mSouthwest

Sun 8/245:20 pmSDF - BOS

1 stop7h 00mSouthwest

Deal found 8/14

$403

Thu 8/2112:50 pmBOS - SDF

Nonstop2h 42mDelta

Sat 8/235:40 pmSDF - BOS

Nonstop2h 35mDelta

Deal found 8/13

$383

Thu 8/216:05 amBOS - SDF

1 stop12h 48mSpirit Airlines

Mon 8/257:58 pmSDF - BOS

1 stop15h 20mSpirit Airlines

Deal found 8/13

$394

Thu 8/216:55 pmBOS - SDF

1 stop14h 39mMultiple Airlines

Sun 8/2412:59 pmSDF - BOS

2 stops19h 11mMultiple Airlines

Deal found 8/13

$417

Thu 8/2112:50 pmBOS - SDF

Nonstop2h 42mDelta

Mon 8/254:20 pmSDF - BOS

Nonstop2h 38mDelta

Deal found 8/13

$419

Fri 8/226:05 amBOS - SDF

1 stop12h 48mMultiple Airlines

Sun 8/2412:59 pmSDF - BOS

2 stops19h 11mMultiple Airlines

Deal found 8/14

$382

Fri 8/226:05 amBOS - SDF

1 stop12h 48mSpirit Airlines

Sun 8/2412:47 pmSDF - BOS

1 stop20h 52mSpirit Airlines

Deal found 8/14

$408

Thu 9/412:15 pmBOS - SDF

1 stop10h 07mAmerican Airlines

Mon 9/81:44 pmSDF - BOS

Nonstop2h 26mAmerican Airlines

Deal found 8/14

$260

Fri 9/58:20 amBOS - SDF

2 stops6h 30mUnited Airlines

Sat 9/69:55 amSDF - BOS

2 stops6h 33mUnited Airlines

Deal found 8/14

$269

One-way flights from Boston to Louisville
Search for one-way flight options from Boston to Louisville. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Sat 9/133:00 pmBOS - SDF

1 stop7h 04mSpirit Airlines

Deal found 8/14

$79

Tue 9/231:02 pmBOS - SDF

Nonstop2h 36mDelta

Deal found 8/14

$99

Sat 9/273:00 pmBOS - SDF

1 stop7h 04mSpirit Airlines

Deal found 8/14

$100

Fri 10/242:53 pmBOS - SDF

1 stop7h 54mSpirit Airlines

Deal found 8/14

$101

Tue 9/25:28 amBOS - SDF

1 stop8h 47mAmerican Airlines

Deal found 8/13

$104

Wed 11/125:35 pmBOS - SDF

1 stop5h 15mSouthwest

Deal found 8/13

$105

Sat 9/132:40 pmBOS - SDF

Nonstop2h 35mDelta

Deal found 8/14

$109

Tue 9/912:20 pmBOS - SDF

1 stop20h 59mSpirit Airlines

Deal found 8/13

$111

Wed 9/173:00 pmBOS - SDF

2 stops18h 19mSpirit Airlines

Deal found 8/13

$113

Tue 9/235:00 amBOS - SDF

1 stop9h 03mAmerican Airlines

Deal found 8/14

$114

Fly from

Fly to

Route

Depart

Return

Price

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 9/17

3:00 pm-9:19 am

2 stops18h 19m

Louisville Intl

Mon 9/22

8:23 am-11:57 pm

1 stop15h 34m

$259

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Mon 9/8

5:35 am-12:30 pm

1 stop6h 55m

Louisville Intl

Mon 9/8

4:20 pm-10:15 pm

1 stop5h 55m

$259

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Mon 9/29

2:53 pm-9:19 am

1 stop18h 26m

Louisville Intl

Fri 10/3

8:23 am-11:57 pm

1 stop15h 34m

$259

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 9/4

12:15 pm-10:22 pm

1 stop10h 07m

Louisville Intl

Mon 9/8

1:44 pm-4:10 pm

Nonstop2h 26m

$260

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/5

4:27 pm-10:24 pm

1 stop5h 57m

Louisville Intl

Sat 9/6

9:55 am-4:28 pm

2 stops6h 33m

$260

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 10/15

6:11 am-4:36 pm

1 stop10h 25m

Louisville Intl

Wed 10/22

5:31 pm-1:44 pm

2 stops20h 13m

$260

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/19

2:53 pm-9:19 am

1 stop18h 26m

Louisville Intl

Sun 9/28

8:23 am-11:13 am

1 stop26h 50m

$261

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Wed 9/17

3:00 pm-9:19 am

2 stops18h 19m

Louisville Intl

Sun 9/28

8:23 am-11:57 pm

1 stop15h 34m

$261

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/19

2:53 pm-9:19 am

1 stop18h 26m

Louisville Intl

Sun 9/21

8:23 am-11:13 am

1 stop26h 50m

$261

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 9/25

2:53 pm-9:19 am

1 stop18h 26m

Louisville Intl

Sun 9/28

8:23 am-11:13 am

1 stop26h 50m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 20 results

Best time to book a flight from Boston to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Boston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Louisville

How far ahead should I book a flight from Boston to Louisville?

The price you pay for your flight from Boston to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Louisville?

Currently, January is the cheapest month in which you can book a flight from Boston to Louisville (average of $299). Flying from Boston to Louisville in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to SDF?

It’s typically best to fly out from Boston to Louisville in the morning. Doing so could potentially save you 11% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Boston to Louisville?

Travelers seeking maximum savings on their Boston to Louisville flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Louisville

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boston to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,244 reviews

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

8.0

Very good

7,980 reviews

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,916 reviews

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Spirit Airlines

6.3

Okay

8,045 reviews

Southwest

8.0

Very good

4,244 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airports do I use to fly from Boston to Louisville?
You will need to book a flight from Boston Logan Intl to Louisville Intl if you want to fly from Boston to Louisville. At least 5 different airlines have flights from Logan Intl (BOS) to Louisville Intl (SDF) on a regular basis. There is 1 flight to Louisville from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to SDF to be around 2h 35m.
What are the cheapest airlines flying from Boston to Louisville round-trip?
Spirit Airlines, at $157, was found to be the cheapest airline from Boston to Louisville.Alternate airlines to your destination round-trip include Delta and American Airlines. Spirit Airlines is priced at 58% lower than the current average price of a flight leaving 3 months from now.
What are the most reliable airlines from Boston to Louisville?
The top 3 most reliable airlines when flying from Boston to Louisville are Air France (100%), Korean Air (100%) and Virgin Atlantic (100%).
What are the cheapest flights from Boston to Louisville?
Looking at all options, your cheapest flight can be booked for $130. While the most popular route (Boston Logan Intl - Louisville Intl) can be booked for $185 on average our data indicates $270 when flying from Boston to Louisville.
Can I find deals for flights from Boston to Louisville that include hotel bookings?
Yes. In addition to deals on Boston to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Louisville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Louisville.
Can I find deals for business class flights from Boston to Louisville?
Yes. Cheapflights offers flight deals from Boston to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boston to Louisville?
Currently, January is the cheapest month in which you can book a flight from Boston to Louisville (average of $299). Flying from Boston to Louisville in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Jeffersonville

Elizabethtown

Corydon

Bardstown

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Alternative routes for Boston to Louisville

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Other flights to Louisville

Top 5 airlines flying from Boston to Louisville

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$157	Average$227	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$232	Average$380	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$249	Average$379	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$258	Average$396	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$268	Average$419	FlexibilityNo cancel fee	On-time69%

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$79+ Cheap flights from Boston to Louisville (BOS - SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Louisville with Cheapflights

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Cheapflights Tip: The best prices from Boston Logan Intl to Louisville Intl are usually found in August or March, booked 83 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Boston to Louisville

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One-way from

Popular in

Cheapest in

Average price

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Good one-way deal

Find flight deals from Boston to Louisville

Cheapest flights from Boston to LouisvilleExplore the most affordable flight options available from Boston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Boston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Louisville that are best for you.

Best time to book a flight from Boston to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to Louisville

How far ahead should I book a flight from Boston to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Louisville. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Boston to Louisville?

What is the cheapest time of day to fly from BOS to SDF?

Find hourly flight availability from Boston to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

What is the cheapest day to fly from Boston to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Boston to Louisville. Price data was last updated on August 10, 2025.

Reviews of airlines servicing Louisville

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boston to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Boston to Louisville?

What are the cheapest airlines flying from Boston to Louisville round-trip?

What are the most reliable airlines from Boston to Louisville?

What are the cheapest flights from Boston to Louisville?

Can I find deals for flights from Boston to Louisville that include hotel bookings?

How can I find direct flights from Boston to Louisville?

Can I find deals for business class flights from Boston to Louisville?

What is the cheapest month to book a flight from Boston to Louisville?

Traveling to a place near Louisville?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Louisville

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Top 5 airlines flying from Boston to Louisville

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Cheapest flights from Boston to Louisville
Explore the most affordable flight options available from Boston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.