$99 Cheap Flights from Louisville (SDF) to Boston (BOS)

View $99 flight on Thu, Aug 7, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Logan International Airport (BOS)

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Cheap Flights from Louisville to Boston (SDF-BOS)

Prices were available within the past 7 days and start at $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Aug 11 - Mon, Aug 18
SDF
Louisville
BOS
Boston
$197 Roundtrip, just found
$197
Roundtrip
just found
Select American Airlines flight, departing Mon, Aug 11 from Louisville to Boston, returning Mon, Aug 18, priced at $197 just found
Delta
Mon, Aug 11 - Mon, Aug 18
SDF
Louisville
BOS
Boston
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Mon, Aug 11 from Louisville to Boston, returning Mon, Aug 18, priced at $197 just found
Delta
Tue, Sep 9 - Tue, Sep 16
SDF
Louisville
BOS
Boston
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Sep 9 from Louisville to Boston, returning Tue, Sep 16, priced at $199 found 4 hours ago
Southwest Airlines
Tue, Sep 9 - Tue, Sep 16
SDF
Louisville
BOS
Boston
$207 Roundtrip, found 4 hours ago
$207
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Louisville to Boston, returning Tue, Sep 16, priced at $207 found 4 hours ago
Southwest Airlines
Mon, Aug 11 - Mon, Aug 18
SDF
Louisville
BOS
Boston
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Aug 11 from Louisville to Boston, returning Mon, Aug 18, priced at $208 just found
United
Mon, Aug 11 - Mon, Aug 18
SDF
Louisville
BOS
Boston
$209 Roundtrip, just found
$209
Roundtrip
just found
Select United flight, departing Mon, Aug 11 from Louisville to Boston, returning Mon, Aug 18, priced at $209 just found
American Airlines
Tue, Aug 12 - Tue, Aug 19
SDF
Louisville
BOS
Boston
$210 Roundtrip, just found
$210
Roundtrip
just found
Select American Airlines flight, departing Tue, Aug 12 from Louisville to Boston, returning Tue, Aug 19, priced at $210 just found
Spirit Airlines
Fri, Sep 5 - Tue, Sep 9
SDF
Louisville
BOS
Boston
$211 Roundtrip, found 1 hour ago
$211
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, Sep 5 from Louisville to Boston, returning Tue, Sep 9, priced at $211 found 1 hour ago
Southwest Airlines
Tue, Sep 9 - Tue, Sep 16
SDF
Louisville
BOS
Boston
$213 Roundtrip, found 4 hours ago
$213
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Louisville to Boston, returning Tue, Sep 16, priced at $213 found 4 hours ago
United
Tue, Sep 9 - Tue, Sep 16
SDF
Louisville
BOS
Boston
$214 Roundtrip, found 4 hours ago
$214
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Sep 9 from Louisville to Boston, returning Tue, Sep 16, priced at $214 found 4 hours ago

Find the cheapest month to fly from Louisville (SDF) to Boston (BOS)

September is typically the cheapest month to fly

From $143 - $342 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $385
BOS
Logan Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $385
Flights from Louisville (SDF) to Boston (BOS)
Origin airport
Louisville Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$197
Distance
826 mi
Average flight time
2 hours 33 mins

Louisville to Boston Flights

The cheapest times to fly from Louisville to Boston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Boston are during the month of August. You can find some of the cheapest flights from Louisville to Boston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Boston

Sunday is one of the best days to book for cheap flights from Louisville to Boston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Louisville to Boston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Boston in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Boston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Boston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS) cost?
Cheap round-trip fares from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS) start at $229. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving SDF on July 15 2025 and touching down at BOS. The price was last updated on June 26 2025 and has not changed since.
What is the cheapest month to fly from SDF to BOS?
The cheapest flights from SDF to BOS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
When flying out of Louisville Intl. Airport (SDF), you can jump on a nonstop flight to Logan Intl. Airport (BOS) with American Airlines.
What is the cheapest airline that flies from SDF to BOS?
At the moment, the cheapest airline offering one-way flights from SDF to BOS is American Airlines. You can book a seat on this route from $204. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SDF on July 1 2025. Prices were last updated on June 26 2025 and have not changed since.
How many flights per day from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
On average, there's only 1 nonstop flight leaving from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS) each day. If this doesn't work for you, consider flights with layovers. Just customize your search results on Expedia to include one or more stops to find the next best option.
What are the most popular departure times for flights from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
More passengers fly between SDF and BOS at 4 PM than at any other time. Looking to skip the crowds? Pick a flight outside the busiest times and you're likely to save on your fare as well.
What day of the week has the most flights from SDF to BOS?
Friday offers the most flights from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS). Consider jetting off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
Take the earliest flight at around 2:21PM UTC-5, heading out of Louisville Intl. Airport (SDF). You'll be flying for around 2h 22m, coming in to land at Logan Intl. Airport (BOS) at approximately 4:43PM UTC-5.
How long does it take to fly from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
Flights from SDF to BOS have an average travel time of 2 hours and 23 minutes. The total distance between these two airports is 830 mi.
What is the best time to fly from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
To touch down at Logan Intl. Airport (BOS) on time, book a flight that takes off from Louisville Intl. Airport (SDF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Boston from Louisville Intl. Airport (SDF)?
Check out your flight options from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS). This is the only airport in Boston you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS) last-minute?
Holding off until just before your trip to book a ticket from SDF to BOS often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a SDF to BOS flight and hotel package?
You'll generally save money by booking a SDF to BOS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Logan Intl. Airport (BOS)?
Generally, it's possible to reschedule or cancel your SDF to BOS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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