SDF - BOS

$116 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 8/26. 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

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Everything you should know

Cheapest round-trip
$261
Typical prices: $319-$443
Multiple Airlines
Sun 8/9Sat 8/15
SDF - BOS • 1 stop
Cheapest non-stop
$303
Typical prices: $305-$442
Delta
Mon 8/10Sat 8/15
SDF - BOS • Non-stop
Top airlines
Cheapest • from $286 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with American Airlines and Delta. Average duration is 2h 30m
Direct flights
Direct flights
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Direct flights
Direct flights
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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 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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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

Sun, Aug 9 - Sat, Aug 15
Multiple Airlines Logo
9:24 pm - 9:09 am
SDF
-
BOS
11h 45m
1 stop
Multiple Airlines Logo
8:37 am - 8:06 pm
BOS
-
SDF
11h 29m
1 stop
$261Multiple Airlines
Sat, Aug 22 - Tue, Aug 25
Multiple Airlines Logo
8:46 pm - 11:50 am
SDF
-
BOS
15h 04m
1 stop
Multiple Airlines Logo
12:45 pm - 2:16 pm
BOS
-
SDF
25h 31m
2 stops
$262Multiple Airlines
Thu, Aug 13 - Sat, Aug 15
Multiple Airlines Logo
9:24 pm - 9:09 am
SDF
-
BOS
11h 45m
1 stop
Multiple Airlines Logo
8:37 am - 8:06 pm
BOS
-
SDF
11h 29m
1 stop
$272Multiple Airlines
Sun, Aug 9 - Wed, Aug 19
Multiple Airlines Logo
9:24 pm - 9:09 am
SDF
-
BOS
11h 45m
1 stop
Multiple Airlines Logo
12:45 pm - 4:29 pm
BOS
-
SDF
27h 44m
2 stops
$285Multiple Airlines
Fri, Oct 16 - Thu, Oct 29
Allegiant Air Logo
9:14 pm - 9:29 am
SDF
-
BOS
12h 15m
1 stop
Allegiant Air Logo
12:34 pm - 7:20 pm
BOS
-
SDF
30h 46m
1 stop
$286Allegiant Air
Sun, Aug 23 - Tue, Aug 25
Multiple Airlines Logo
5:19 pm - 9:09 am
SDF
-
BOS
15h 50m
1 stop
Multiple Airlines Logo
12:45 pm - 2:16 pm
BOS
-
SDF
25h 31m
2 stops
$291Multiple Airlines
Sat, Aug 22 - Wed, Aug 26
Multiple Airlines Logo
8:46 pm - 11:50 am
SDF
-
BOS
15h 04m
1 stop
Multiple Airlines Logo
12:45 pm - 10:32 am
BOS
-
SDF
21h 47m
2 stops
$295Multiple Airlines
Mon, Aug 10 - Sat, Aug 15
Multiple Airlines Logo
9:10 pm - 7:46 am
SDF
-
BOS
34h 36m
2 stops
Multiple Airlines Logo
8:37 am - 8:06 pm
BOS
-
SDF
11h 29m
1 stop
$296Multiple Airlines
Wed, Aug 26 - Wed, Sep 2
American Airlines Logo
3:21 pm - 11:59 pm
SDF
-
BOS
8h 38m
1 stop
American Airlines Logo
6:00 am - 2:51 pm
BOS
-
SDF
8h 51m
1 stop
$297American Airlines
Thu, Aug 6 - Tue, Aug 18
Multiple Airlines Logo
9:24 pm - 9:09 am
SDF
-
BOS
11h 45m
1 stop
Multiple Airlines Logo
12:45 pm - 2:16 pm
BOS
-
SDF
25h 31m
2 stops
$298Multiple 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 August.

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 $299 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $502 and $488 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.

No, with an average price for the route of $445, prices are generally cheapest when you fly direct.

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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 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$116
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 11% 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 $116 for a one-way ticket and $261 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?

    American Airlines, Delta, 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Louisville to Boston are Southwest and Delta. With an average price for the route of $379 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $399 and an overall rating of 7.8.

  • 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 $381 or less one-way and $540 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 4249 reviews
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
8.6Crew
Airline reviews

My experience will Southwest was good. I wish there was more entertainment and the boarding process was slow at time but other than that my experience was great definitely will be flying with SouthWest again.

8.0 ExcellentAnonymous, Jul 2026
PHL - BNA
Read more Southwest reviews

My experience will Southwest was good. I wish there was more entertainment and the boarding process was slow at time but other than that my experience was great definitely will be flying with SouthWest again.

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job! My family doesnt fly often but we felt safe 100%

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

The tray table was broken and the food was terrible.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Advertised fruit trays with cheese, but only snacks handed out!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Super friendly with lots of drink options an entertainment. Friendly crew.

I like flying first class, and United has a nice one

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

I was forced to check my carry-on backpack despite there being space - but it came out on the baggage carousel so fast it didn't even delay my pickup. Otherwise a good flight. Boarding began early (which was disadvantageous for me) but fine.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

Good even though flight was delayed, the crew was prompt and efficient.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

Ring in first class for an overnight flight, there was no blankets nor pillows for first class customers.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

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

Information on your arrival and departure airports