$152 Find Cheap Flights from Boston to Louisville - Compare and Save

The most affordable option is usually taking the subway and bus operated by the Massachusetts Bay Transportation Authority (MBTA). The Blue Line subway connects downtown Boston to the airport, and you can transfer to the free Silver Line SL1 bus at the Airport Station. The cost of an MBTA subway or bus fare is typically lower than other modes of transportation.

For travelers on a tight budget, a connecting flight from Boston to Louisville may be less expensive than a direct ticket. Many airlines, including American Airlines, Delta Air Lines, Southwest Airlines, and United Airlines, offer connecting flights on this route. These airlines' respective layover cities are Dallas, Detroit, Nashville, or Chicago.

Pets are allowed on board a variety of carriers when flying from Boston to Louisville, including American, Delta Air Lines, Southwest Airlines, and United Airlines. It is advisable to buy your ticket as soon as you can, though, as each aircraft only accepts a certain number of animals. Your pet should not weigh more than 20 lbs overall in the carrier. The pet carrier will also be regarded as a carry-on item. These airlines allow just a single animal per traveler, except in certain circumstances.

For flights leaving from Boston to Louisville, a number of carriers, including Delta Air Lines, Southwest Airlines, and United Airlines, have loosened their baggage restrictions. These airlines stand out for not charging customers for carry-on bags up to 22 lbs. In addition, they provide discounted pricing for checked bags weighing under fifty pounds.

Among airlines operating Boston to Louisville flights:

• American Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Boston and Louisville. The airlines offering nonstop flights on this route include:

• Delta
• American Airlines

Flights from Boston to Louisville usually depart from Boston Logan Intl (BOS) and arrive at Louisville Intl (SDF).

Here are some options for this route, based on selected ticket types and cabin classes:

• American Airlines: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in First Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Boston to Louisville:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $218 round-trip via Fort Lauderdale (FLL), compared to $449 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Embraer 175 family is used most often on this route, operated mainly by American Airlines and Delta. Other aircraft seen on the route include Airbus A220-300 variants.

One-stop flights from Boston to Louisville most commonly connect through:

• Baltimore/Washington (BWI) - 38% of one-stop connections
• Chicago O'Hare Intl (ORD) - 12% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 7% of one-stop connections
• Raleigh-Durham (RDU) - 7% of one-stop connections

Baltimore/Washington (BWI) handles the largest share of one-stop connections on this route.

On the Boston to Louisville route, being flexible with your departure day can save you up to 22%. Saturday is the cheapest day at $419 round-trip on average, while Monday is the most expensive at $531: a $112 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Boston to Louisville flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Louisville are Louisville Waterfront Park and Masonic Widows and Orphans Home. These are among the most viewed places in Louisville on KAYAK.

These are the earliest and latest flight times available from Boston to Louisville:

• Earliest: departs at 9:25 am and lands at 12:09 pm
• Latest: departs at 4:00 pm and lands at 6:44 pm.

The flight takes about 2h 44m.

Last-minute fares on this route - booked within 2 weeks of departure - run 15% above the route average of $455. Book 25 weeks before departure for the lowest fares.

A nonstop flight from Boston to Louisville takes 2h 44m, covering 827 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $275 to $1,030. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Boston to Louisville are currently lower than usual. Average one-way flight prices are about $244, which is 17% below the typical average for this route.

Flying via Washington, D.C. Reagan-National (DCA) gives the shortest average 1-stop total travel time at 4h 08m, compared with 4h 27m via Detroit Metropolitan Wayne County (DTW) and 4h 48m via Charlotte Douglas (CLT).

Louisville Intl Airport (SDF) hosts 5 major car rental companies, with daily rates starting from around $32 for economy cars. Top options include:
• Hertz
• Dollar
• Alamo
• Thrifty
• Budget

Round-trip flights from Boston to Louisville range from $380 to $556, with an average of $455 over the past 12 months. Anything below $380 counts as a good deal.

Two airlines offer in-flight Wi-Fi on Boston to Louisville flights:

• • American Airlines
• • Delta