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$93+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$239
(American Airlines)

One-way from

$93
(Expedia)

Popular in

April

Cheapest in

November

Average price

$343

Good round-trip deal

$275 or less

Good one-way deal

$180 or less
From Louisville Intl to Boston Logan Intl
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One-way flight from Louisville Intl to Boston Logan Intl
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Highest demand for flights based on searches. 2% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Louisville Intl to Boston Logan Intl.
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Price to beat on a one-way flight from Louisville Intl to Boston Logan Intl.
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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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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 11/86:00 amSDF - BOS
1 stop9h 30mAmerican Airlines
Wed 11/127:00 amBOS - SDF
Nonstop2h 59mAmerican Airlines
Deal found 9/16$239
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 10/38:23 amSDF - BOS
1 stop15h 34mSpirit Airlines
Wed 10/86:16 amBOS - SDF
1 stop10h 20mSpirit Airlines
Deal found 9/16$241
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/66:43 pmSDF - BOS
1 stop16h 43mMultiple Airlines
Wed 10/86:17 amBOS - SDF
2 stops11h 38mMultiple Airlines
Deal found 9/15$242
This KAYAK deal was found by Cheapflights users on 9/15. 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.
Mon 10/272:57 pmSDF - BOS
2 stops20h 19mSpirit Airlines
Wed 10/296:16 amBOS - SDF
1 stop10h 20mSpirit Airlines
Deal found 9/15$243
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/155:31 pmSDF - BOS
1 stop17h 55mSpirit Airlines
Wed 10/223:00 pmBOS - SDF
2 stops31h 47mSpirit Airlines
Deal found 9/15$244
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/1011:47 amSDF - BOS
1 stop23h 39mSpirit Airlines
Tue 10/143:00 pmBOS - SDF
2 stops26h 55mSpirit Airlines
Deal found 9/15$246
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 12/511:21 amSDF - BOS
1 stop23h 03mMultiple Airlines
Mon 12/88:48 amBOS - SDF
2 stops14h 57mMultiple Airlines
Deal found 9/15$248
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/104:18 pmSDF - BOS
1 stop6h 02mAmerican Airlines
Sat 11/157:35 amBOS - SDF
1 stop9h 15mAmerican Airlines
Deal found 9/15$249
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 10/38:23 amSDF - BOS
1 stop26h 50mSpirit Airlines
Tue 10/73:00 pmBOS - SDF
2 stops26h 55mSpirit Airlines
Deal found 9/16$251
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/710:55 amSDF - BOS
1 stop13h 45mMultiple Airlines
Fri 11/145:45 amBOS - SDF
2 stops14h 37mMultiple Airlines
Deal found 9/16$252
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/110:14 amSDF - BOS
2 stops37h 43mSpirit Airlines
Wed 10/86:16 amBOS - SDF
1 stop10h 20mSpirit Airlines
Deal found 9/15$253
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 10/1711:47 amSDF - BOS
1 stop23h 39mSpirit Airlines
Sun 10/196:16 amBOS - SDF
1 stop28h 36mSpirit Airlines
Deal found 9/16$255

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 September 17, 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 10/8

5:31 pm-7:16 pm

2 stops25h 45m

Boston Logan Intl

Wed 10/15

6:16 am-4:36 pm

1 stop10h 20m

$241

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Wed 11/19

6:44 am-3:03 pm

1 stop8h 19m

Boston Logan Intl

Fri 11/28

10:40 am-1:30 pm

Nonstop2h 50m

$255

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Mon 10/27

4:25 pm-6:59 pm

Nonstop2h 34m

Boston Logan Intl

Tue 10/28

1:05 pm-3:45 pm

Nonstop2h 40m

$266

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Mon 10/20

1:20 pm-3:43 pm

Nonstop2h 23m

Boston Logan Intl

Wed 10/22

10:00 am-12:47 pm

Nonstop2h 47m

$266

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Sat 11/8

12:50 pm-3:20 pm

Nonstop2h 30m

Boston Logan Intl

Wed 11/12

12:30 pm-3:25 pm

Nonstop2h 55m

$275

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Sat 10/25

1:20 pm-3:43 pm

Nonstop2h 23m

Boston Logan Intl

Mon 10/27

10:00 am-12:47 pm

Nonstop2h 47m

$275

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Mon 10/27

2:50 pm-11:55 pm

2 stops9h 05m

Boston Logan Intl

Tue 10/28

7:50 am-1:00 pm

1 stop5h 10m

$291

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Sat 11/22

12:00 pm-2:28 pm

Nonstop2h 28m

Boston Logan Intl

Fri 11/28

12:30 pm-3:25 pm

Nonstop2h 55m

$304

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Sat 11/22

5:35 pm-12:20 am

1 stop6h 45m

Boston Logan Intl

Fri 11/28

5:35 am-12:20 pm

1 stop6h 45m

$311

LouisvilleBoston

SDF - BOS

SDFBOS

Louisville Intl

Fri 1/30

5:35 am-5:10 pm

2 stops11h 35m

Boston Logan Intl

Wed 2/4

3:20 pm-10:10 pm

2 stops6h 50m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
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2
3

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 September 12, 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 September 17, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 63% 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 September 14, 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 September 17, 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.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 4 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?

    This flight path from Louisville Intl to Boston Logan Intl was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Louisville to Boston?

    Airlines like Spirit Airlines, American Airlines, and Delta fly from Louisville to Boston in about 2h 34m. The time it takes to get you to your destination can typically vary by up to 23h 11m. There are 827 mi between Louisville and Boston. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Spirit Airlines ($171), Southwest ($216), and Delta ($232) 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 Republic Airways (87%), Delta (85%) or American Airlines (74%) 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 $290 for a flight from Louisville to Boston. The cheapest flight overall is $98 while the most popular route, (Louisville Intl - Boston Logan Intl) is currently priced at $174.

  • 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
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Old Orchard Beach
Brockton
Waltham

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$171Average$216FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$216Average$397FlexibilityNo cancel feeOn-time63%
DeltaCheapest$232Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$253Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$445FlexibilityNo cancel feeOn-time69%

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