Boston

$89+ Cheap flights from Louisville to Boston (SDF - BOS)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOS
Aug 19 — Aug 261
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Cheapflights Tip: The best prices from Louisville Intl to Boston Logan Intl are usually found in November or February, booked 88 days in advance, depart on a Saturday or Friday and return on a Saturday

Cheap flight deals from Louisville to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$237
(American Airlines)

One-way from

$89
(Mytrip)

Popular in

October

Cheapest in

November

Average price

$342

Good round-trip deal

$289 or less

Good one-way deal

$222 or less
From Louisville Intl to Boston Logan Intl
One-way flight from Louisville Intl to Boston Logan Intl
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Louisville Intl to Boston Logan Intl.
Price to beat on a one-way flight from Louisville Intl to Boston Logan Intl.

Find flight deals from Louisville to Boston

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

This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:42 pmSDF - BOS
1 stop9h 11mAmerican Airlines
Fri 9/125:00 amBOS - SDF
1 stop9h 07mAmerican Airlines
Deal found 8/13$237
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:23 amSDF - BOS
2 stops24h 42mSpirit Airlines
Sat 9/206:00 amBOS - SDF
2 stops16h 04mSpirit Airlines
Deal found 8/14$239
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:58 pmSDF - BOS
1 stop16h 28mSpirit Airlines
Fri 10/242:53 pmBOS - SDF
1 stop7h 54mSpirit Airlines
Deal found 8/14$241
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:15 amSDF - BOS
2 stops8h 10mSouthwest
Thu 9/47:30 amBOS - SDF
1 stop5h 00mSouthwest
Deal found 8/14$242
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:49 amSDF - BOS
1 stop5h 55mSpirit Airlines
Sun 10/192:53 pmBOS - SDF
1 stop7h 54mSpirit Airlines
Deal found 8/13$243
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:23 amSDF - BOS
1 stop26h 50mSpirit Airlines
Tue 10/143:00 pmBOS - SDF
1 stop29h 26mSpirit Airlines
Deal found 8/12$244
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:23 amSDF - BOS
1 stop26h 50mSpirit Airlines
Mon 10/66:11 amBOS - SDF
1 stop11h 52mSpirit Airlines
Deal found 8/14$245
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:35 pmSDF - BOS
1 stop4h 00mAmerican Airlines
Tue 10/710:00 amBOS - SDF
Nonstop2h 47mAmerican Airlines
Deal found 8/14$246
This KAYAK deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:14 amSDF - BOS
2 stops12h 56mSpirit Airlines
Sat 9/133:00 pmBOS - SDF
1 stop7h 04mSpirit Airlines
Deal found 8/14$248
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/272:42 pmSDF - BOS
1 stop9h 11mAmerican Airlines
Thu 10/25:50 amBOS - SDF
1 stop5h 48mAmerican Airlines
Deal found 8/12$249
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:36 pmSDF - BOS
1 stop19h 12mMultiple Airlines
Sat 9/203:00 pmBOS - SDF
2 stops18h 19mMultiple Airlines
Deal found 8/14$250

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Boston 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Louisville to Boston that are best for you.

Fly from

Louisville

Fly to

Boston

Route

Depart

Return

Price

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Wed 9/3

2:42 pm-11:53 pm

1 stop9h 11m

Boston Logan Intl

Fri 9/12

5:00 am-2:07 pm

1 stop9h 07m

$237

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Thu 9/4

10:14 am-1:48 pm

1 stop27h 34m

Boston Logan Intl

Thu 9/11

2:53 pm-9:19 am

1 stop18h 26m

$239

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Fri 9/19

10:14 am-11:13 am

2 stops24h 59m

Boston Logan Intl

Sat 9/20

3:00 pm-10:04 pm

1 stop7h 04m

$241

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Sat 10/25

3:10 pm-10:15 pm

1 stop7h 05m

Boston Logan Intl

Wed 10/29

7:50 am-5:30 pm

2 stops9h 40m

$242

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Tue 10/14

3:50 pm-9:10 pm

1 stop5h 20m

Boston Logan Intl

Tue 10/21

5:00 am-4:20 pm

1 stop11h 20m

$242

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Tue 9/9

11:50 am-5:20 pm

1 stop5h 30m

Boston Logan Intl

Tue 9/16

10:50 am-6:25 pm

2 stops7h 35m

$242

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Mon 10/6

5:30 pm-11:55 pm

1 stop6h 25m

Boston Logan Intl

Tue 10/7

9:10 am-5:30 pm

2 stops8h 20m

$242

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Wed 9/3

7:15 am-3:25 pm

2 stops8h 10m

Boston Logan Intl

Thu 9/4

7:30 am-12:30 pm

1 stop5h 00m

$242

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Fri 10/3

8:23 am-11:13 am

1 stop26h 50m

Boston Logan Intl

Mon 10/6

6:11 am-6:03 pm

1 stop11h 52m

$245

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Wed 9/24

1:44 pm-4:10 pm

Nonstop2h 26m

Boston Logan Intl

Sat 9/27

10:31 am-1:03 pm

Nonstop2h 32m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 results
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Best time to book a flight from Louisville to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Louisville 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 Louisville to Boston

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

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

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Louisville to Boston (average of $218). Flying from Louisville to Boston in July is currently the most expensive (average of $311). 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 SDF to BOS?

Find hourly flight availability from Louisville to Boston. 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.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 66% on flights from Louisville to Boston by exploring options for tickets in the evening.

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

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

Travelers seeking maximum savings on their Louisville to Boston flight should consider departing on Monday 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 Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Louisville to Boston, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.
8.0
Very good

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Boston. 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 Louisville to Boston?

    You will need to book a flight from Louisville Intl to Boston Logan Intl if you want to fly from Louisville to Boston. At least 5 different airlines have flights from Louisville Intl (SDF) to Logan Intl (BOS) on a regular basis. There are 3 flights to Boston from the Louisville airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SDF to BOS to be around 2h 20m.

  • How popular is this Louisville to Boston flight route?

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

    According to our current data, Spirit Airlines ($171), Southwest ($216), and Delta ($249) offers the cheapest pricing from Louisville to Boston. You may be able to fly from Louisville to Boston for 51% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Louisville to Boston?

    No one likes to see their flight delayed. When booking a flight from Louisville to Boston consider choosing Delta (82%), Republic Airways (75%) or American Airlines (53%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Louisville to Boston?

    On average you can expect to pay $330 for a flight from Louisville to Boston. The cheapest flight overall is $130 while the most popular route, (Louisville Intl - Boston Logan Intl) is currently priced at $197.

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

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

  • How can I find direct flights from Louisville to Boston?

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

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

    Yes. Cheapflights offers flight deals from Louisville to Boston 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 Louisville to Boston?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Boston (average of $218). Flying from Louisville to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Watertown
Hampton Beach
Waltham
Seabrook
Lowell
Lincoln
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Swansea
Saugus
Burlington
Braintree

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Louisville to Boston

Discover the top 5 airlines that operate flights from Louisville to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$171Average$216FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$216Average$382FlexibilityNo cancel feeOn-time63%
DeltaCheapest$249Average$364FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$249Average$357FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$445FlexibilityNo cancel feeOn-time69%

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