SDF - BOS

$128 Find Cheap Flights from Louisville to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Boston departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Boston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$267
Typical prices: $457-$348
Multiple Airlines
Thu 5/28Sat 5/30
SDF - BOS • 2 stops
Cheapest non-stop
$345
Typical prices: $494-$342
Delta
Tue 6/30Sat 7/4
SDF - BOS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta offers free Wi-Fi for SkyMiles members.
American's Main Cabin Extra includes early boarding.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $345 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and Delta. Average duration is 2h 30m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $191 (round-trip)
Shortest trip • 4h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Louisville to Boston (SDF-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Boston

Thu, May 28 - Sat, May 30
Multiple Airlines Logo
6:55 pm - 11:06 am
SDF
-
BOS
16h 11m
2 stops
Multiple Airlines Logo
10:46 am - 5:37 pm
BOS
-
SDF
6h 51m
1 stop
$267Multiple Airlines
Thu, May 28 - Sat, May 30
Multiple Airlines Logo
2:27 pm - 11:06 am
SDF
-
BOS
20h 39m
1 stop
Multiple Airlines Logo
10:46 am - 5:37 pm
BOS
-
SDF
6h 51m
1 stop
$274Multiple Airlines
Thu, May 28 - Sat, May 30
Multiple Airlines Logo
2:27 pm - 11:06 am
SDF
-
BOS
20h 39m
1 stop
Multiple Airlines Logo
10:46 am - 5:37 pm
BOS
-
SDF
6h 51m
1 stop
$281Multiple Airlines
Thu, Jul 30 - Thu, Aug 6
Multiple Airlines Logo
9:35 pm - 11:47 am
SDF
-
BOS
14h 12m
1 stop
Multiple Airlines Logo
6:00 am - 8:20 pm
BOS
-
SDF
38h 20m
2 stops
$323Multiple Airlines
Thu, Jul 9 - Tue, Jul 14
Multiple Airlines Logo
9:35 pm - 11:47 am
SDF
-
BOS
14h 12m
1 stop
Multiple Airlines Logo
9:14 am - 11:26 am
BOS
-
SDF
26h 12m
2 stops
$328Multiple Airlines
Thu, May 28 - Tue, Jun 2
Multiple Airlines Logo
2:27 pm - 11:06 am
SDF
-
BOS
20h 39m
1 stop
Multiple Airlines Logo
9:12 am - 11:30 am
BOS
-
SDF
26h 18m
2 stops
$336Multiple Airlines
Thu, Jul 16 - Tue, Jul 21
Multiple Airlines Logo
9:35 pm - 11:47 am
SDF
-
BOS
14h 12m
1 stop
Multiple Airlines Logo
6:00 am - 11:26 am
BOS
-
SDF
29h 26m
2 stops
$343Multiple Airlines
Tue, Jun 30 - Sat, Jul 4
Delta Logo
12:46 pm - 3:21 pm
SDF
-
BOS
2h 35mnonstop
Delta Logo
1:59 pm - 4:48 pm
BOS
-
SDF
2h 49mnonstop
$345Delta
Tue, Jun 16 - Tue, Jun 23
American Airlines Logo
2:32 pm - 11:52 pm
SDF
-
BOS
9h 20m
1 stop
American Airlines Logo
6:00 am - 2:02 pm
BOS
-
SDF
8h 02m
1 stop
$353American Airlines
Mon, Jun 29 - Sat, Jul 4
Multiple Airlines Logo
9:10 pm - 1:27 am
SDF
-
BOS
28h 17m
2 stops
Multiple Airlines Logo
10:59 am - 4:54 pm
BOS
-
SDF
5h 55m
1 stop
$354Multiple Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Boston flights

Get data-powered insights and trends into flights from Louisville to Boston to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Louisville to Boston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to Boston departing in May.

What’s the cheapest day of the week to fly from Louisville to Boston?

The average price of all round-trip flights from Louisville to Boston clicked on KAYAK for each day over the last 12 months.

When flying from Louisville to Boston, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Louisville, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Boston is September, where tickets cost $315 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $502 and $453 respectively.

Can I save money by flying with a layover from Louisville to Boston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $485 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Boston, you should book around 5 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to Boston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways and Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonFebruary
Cheapest flight$128
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Louisville to Boston

When to book flights from Louisville to Boston

Are your dates flexible? Find out the best times to travel from Louisville to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Boston

  • Which is the quickest way to Louisville International Airport from downtown?

    When you’re running late for your flight out of Louisville International Airport, taking a taxi is the quickest option you have, they will pick you up at any location in the city and drop you off outside the airport terminal in less than twenty minutes. Public transport, which is the cheaper option, takes close to forty minutes from downtown.

  • Are there any upsides to booking a business class ticket for such as short flight?

    Business travelers should consider booking with American Airlines for the flight from Louisville to Boston. Their business class options offer a wide range of benefits including more legroom, a better selection of in-flight meals, priority boarding, and power outlets to charge your devices allowing you to work, even during your flights.

  • Can I book a ticket for my child to fly alone?

    Yes, multiple airlines will allow your child to fly alone from Louisville to Boston. However, depending on their age, you might incur additional charges for the unaccompanied minors' service. Both Delta and American Airlines make it mandatory for children under the age of 14 to pay for the unaccompanied minors service so that they can guarantee the safety of your child during the trip. If your child is aged 15-17, you can still pay for the service - although it is only optional.

  • How do I access Downtown Boston from Boston Logan International Airport?

    You can either take a taxi, or use the subway or bus to get to Downtown Boston after landing at Boston Logan. The taxi is the quickest and most convenient, as it only takes ten minutes, but it is also the most expensive option. Both the subway and bus take about ten minutes and are significantly cheaper, with the subway costing a fraction of the taxi prices and the bus costs nothing. If you opt for the subway, you’ll need to take a Massport shuttle bus from the terminal to the airport station, and then take Blue Line - which leads directly to downtown. For the bus, you can take the Silver Line 1 - which stops at every terminal.

  • What is the cheapest flight from Louisville to Boston?

    In the last 3 days, the lowest price for a flight from Louisville to Boston was $128 for a one-way ticket and $267 for a round-trip.

  • Do I need a passport to fly between Louisville and Boston?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Boston?

    Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the Louisville to Boston flight route.

  • Which aircraft models fly most regularly from Louisville to Boston?

    The Embraer 175 is the aircraft model that flies most regularly on the Louisville to Boston flight route.

  • Which airline alliances offer flights from Louisville to Boston?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Louisville and Boston, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Boston?

    There are nonstop flights from Louisville to Boston on a daily basis.

  • Which is the best airline for flights from Louisville to Boston, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Louisville to Boston are Delta and Southwest. With an average price for the route of $383 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $383 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Louisville to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Louisville with another airline. Booking your flights between Louisville and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $338 or less one-way and $466 or less round-trip.
  • Delta and American Airlines are the only airlines offering a direct connection from Louisville SDF) to Boston (BOS). Other airlines, like Spirit and United Airlines, require a transfer either in Orlando in the case of Spirit, or Washington when using United Airlines.
  • Spirit, Delta, and American Airlines all provide on-board Wi-Fi to their passengers. However, both Spirit and American Airlines will charge you an additional fee to access the Wi-Fi, while Delta provides it for free.
  • If you’re looking for a way to make your trip more sustainable, American Airlines is a good option to fly with. They were leading all North American airlines in the use of sustainable aviation fuel at the start of the decade and have committed to purchasing over a hundred million gallons more for use in their flights.
  • Spirit Airlines requires passengers to pay an added fee for extra legroom in economy class. With Delta’s Comfort+ option, you can get extra legroom in economy class for free.
  • American Airlines has a baggage allowance of one checked bag and one carry-on bag for economy travelers. Other airlines offer an allowance of only a carry-on bag with any checked bags incurring a charge.

Prefer to fly direct from Louisville to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Boston Logan Intl.
Find which airlines fly direct from Louisville Intl Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Boston Logan Intl

Monday

American Airlines,Delta

American Airlines,Delta

Tuesday

American Airlines,Delta

American Airlines,Delta

Wednesday

American Airlines,Delta

American Airlines,Delta

Thursday

American Airlines,Delta

American Airlines,Delta

Friday

American Airlines,Delta

American Airlines,Delta

Saturday

American Airlines,Delta

American Airlines,Delta

Sunday

American Airlines,Delta

American Airlines,Delta

See more direct flights

Direct returns

Boston Logan Intl to Louisville Intl

Monday

American Airlines,Delta

American Airlines,Delta

Tuesday

American Airlines,Delta

American Airlines,Delta

Wednesday

American Airlines,Delta

American Airlines,Delta

Thursday

American Airlines,Delta

American Airlines,Delta

Friday

American Airlines,Delta

American Airlines,Delta

Saturday

American Airlines,Delta

American Airlines,Delta

Sunday

American Airlines,Delta

American Airlines,Delta

See more direct flights

Reviews of the top 5 airlines serving from Louisville to Boston

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4287 reviews
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
7.0Food
Airline reviews

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

4.0 OkayAnonymous, May 2026
MSY - HOU
Read more Southwest reviews

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

It would have been better IF IT HAD NOT BEEN CANCELED!!!!

There was no flight. Spirit went bankrupt Right before my departure and kayak did not refund me any money. I would like my refund kayak. How can I get it? Please let me know. Thank you

Flights were canceled due to airline shutting down and haven’t received a reimbursement. Had to book last minute new flights which were expensive

My flight was canceled the morning of the flight. I had to rebook a flight with a different airline that cost me $900 out of my pocket

Had a flight change had to get a credit.will I get my money back.

Shut down without prior notice End up with spending lots of extra $$$

There was a crack in my window seal. And Spirit is now closed forever.

The company went out of business and now I'm stuck in Ft. Lauderdale. Would not recommend.

Spirit changed flight times by 12 hours with coming and going so I refunded tickets and drove

The airline cancel mi flight, lost a lot of money!!!

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

Information on your arrival and departure airports