SDF - BOS

$129 Find Cheap Flights from Louisville to Boston - Compare and Save

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 8/1. 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
$245
Typical prices: $414-$267
Southwest
Wed 9/2Tue 9/8
SDF - BOS • 1 stop
Cheapest non-stop
$355
Typical prices: $411-$293
American Airlines
Wed 8/26Wed 9/2
SDF - BOS • Non-stop
Top airlines
Cheapest • from $245 (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 33m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $259 (round-trip)
Shortest trip • 4h 15m (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 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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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

Wed, Sep 2 - Tue, Sep 8
Southwest Logo
5:30 am - 12:40 pm
SDF
-
BOS
7h 10m
1 stop
Southwest Logo
4:55 pm - 9:30 pm
BOS
-
SDF
4h 35m
1 stop
$245Southwest
Wed, Sep 2 - Tue, Sep 8
Southwest Logo
5:30 am - 12:40 pm
SDF
-
BOS
7h 10m
1 stop
Southwest Logo
5:25 am - 3:15 pm
BOS
-
SDF
9h 50m
2 stops
$251Southwest
Wed, Sep 2 - Tue, Sep 8
Southwest Logo
7:05 am - 4:00 pm
SDF
-
BOS
8h 55m
2 stops
Southwest Logo
5:35 am - 3:15 pm
BOS
-
SDF
9h 40m
2 stops
$256Southwest
Tue, Sep 29 - Sat, Oct 3
Southwest Logo
5:30 am - 9:30 am
SDF
-
BOS
4h 00m
1 stop
Southwest Logo
5:35 am - 12:20 pm
BOS
-
SDF
6h 45m
1 stop
$270Southwest
Tue, Sep 29 - Sat, Oct 3
Southwest Logo
7:05 am - 4:00 pm
SDF
-
BOS
8h 55m
2 stops
Southwest Logo
5:35 am - 12:20 pm
BOS
-
SDF
6h 45m
1 stop
$275Southwest
Fri, Oct 9 - Sun, Oct 18
Allegiant Air Logo
9:14 pm - 9:29 am
SDF
-
BOS
12h 15m
1 stop
Allegiant Air Logo
12:34 pm - 6:45 pm
BOS
-
SDF
30h 11m
1 stop
$297Allegiant Air
Sat, Sep 12 - Sat, Sep 19
Southwest Logo
6:45 am - 3:50 pm
SDF
-
BOS
9h 05m
2 stops
Southwest Logo
5:50 am - 12:40 pm
BOS
-
SDF
6h 50m
1 stop
$299Southwest
Tue, Oct 20 - Mon, Oct 26
Southwest Logo
6:40 am - 1:35 pm
SDF
-
BOS
6h 55m
1 stop
Southwest Logo
8:20 am - 3:00 pm
BOS
-
SDF
6h 40m
2 stops
$304Southwest
Tue, Oct 20 - Mon, Oct 26
Southwest Logo
2:20 pm - 10:25 pm
SDF
-
BOS
8h 05m
2 stops
Southwest Logo
5:35 am - 3:00 pm
BOS
-
SDF
9h 25m
2 stops
$309Southwest
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
4:00 pm - 10:10 pm
SDF
-
BOS
6h 10m
1 stop
Southwest Logo
2:45 pm - 9:30 pm
BOS
-
SDF
6h 45m
1 stop
$310Southwest
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 September.

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 $312 (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 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 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$129
Most popular time to fly and prices are also 10% 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 5 days, the lowest price for a flight from Louisville to Boston was $129 for a one-way ticket and $245 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 $392 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 $382 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 $383 or less one-way and $578 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 4 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 4237 reviews
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
7.0Food
Airline reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

10.0 ExcellentAnonymous, Jun 2026
OKC - LAS
Read more Southwest reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

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.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Arrived early, comfortable seats (Comfort+). Mediocre food, poor wifi (intermittent).

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight back to Dallas was delayed, which has happened to me several times with American Airlines. There was no announcement, no update sent out, no compensation offered for the inconvenience.

It wa sort of on time; the cab was left with some trash

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

Boarding was smooth and seamless and the flight was without incident.

Very hard to beat a British Airways international flight…the crews are always so amazing! One flight attendant that really stood out was Emma…she was very personable and accommodating with any request we had!!

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

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

Information on your arrival and departure airports