Cheap flights from Boston to Louisville from $138
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Louisville departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Find the cheapest flights from Boston to Louisville
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Delta flights from Boston to Louisville
Our best Delta deals on Boston to Louisville flight tickets
American Airlines flights from Boston to Louisville
Our best American Airlines deals on Boston to Louisville flight tickets
momondo Fare Finder
Use the filters below to find and compare flights from Boston to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Tue 12/1
5:35 pm-10:15 pm
1 stop4h 40m
Louisville Intl
Thu 12/3
7:20 am-1:40 pm
1 stop6h 20m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Tue 11/10
5:35 pm-10:15 pm
1 stop4h 40m
Louisville Intl
Thu 11/12
5:40 am-9:40 am
1 stop4h 00m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Wed 12/2
8:20 am-5:54 pm
1 stop9h 34m
Louisville Intl
Sat 12/5
11:14 am-8:50 pm
1 stop9h 36m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Wed 11/18
9:23 am-5:43 pm
1 stop8h 20m
Louisville Intl
Sat 11/21
5:20 pm-7:38 pm
Nonstop2h 18m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Fri 10/30
12:39 pm-10:11 am
2 stops21h 32m
Louisville Intl
Sun 11/1
7:42 pm-12:09 pm
1 stop16h 27m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Sat 11/21
11:45 am-2:35 pm
Nonstop2h 50m
Louisville Intl
Tue 12/1
1:30 pm-3:51 pm
Nonstop2h 21m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Wed 12/2
9:55 am-12:49 pm
Nonstop2h 54m
Louisville Intl
Sat 12/5
1:45 pm-4:06 pm
Nonstop2h 21m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Thu 12/17
12:49 pm-9:06 am
1 stop20h 17m
Louisville Intl
Thu 12/24
10:08 am-10:10 am
1 stop24h 02m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Sun 11/22
12:10 pm-5:37 pm
1 stop5h 27m
Louisville Intl
Tue 12/1
9:00 am-1:54 pm
1 stop4h 54m
BostonLouisville
BOS Boston Logan Intl - SDF Louisville Intl
BOSSDF
Boston Logan Intl
Sat 11/21
5:57 pm-11:30 pm
1 stop5h 33m
Louisville Intl
Sun 11/29
5:10 am-10:18 am
1 stop5h 08m
See travel insights to Louisville from
How to get the cheapest flight ticket from Boston to Louisville
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Boston and Louisville?
Prices are currently low for flights on this route.
Typical prices usually range from $443 to $707.The lowest price recently found on this route was $299.
What is the cheapest month to fly to Louisville?
If you are unable to visit Louisville during the month of December, then departing from Boston during the month February is also very affordable. Most momondo users find prices during this month for around $397.
What is the cheapest day to depart on your flight to Louisville?
On average, the least expensive day to fly to Louisville from Boston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $443. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Boston to Louisville on a Monday will generally be more expensive and average around $547. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Louisville?
Our data shows that the cheapest Boston to Louisville flights are usually those with departure times in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $355. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $495 per ticket.
What is the cheapest Boston Logan Intl to Louisville Intl flight route?
Fly from Boston Logan Intl to Louisville Intl for the best Boston Logan Intl - Louisville Intl flight prices
How far in advance should I book a flight from Boston to Louisville?
You are more likely to see cheaper flights to Louisville from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Boston for as low as $375 on momondo.
What cabin class options are available on Boston to Louisville flights?
There are 4 cabin classes available to choose from on Boston to Louisville flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Boston to Louisville flights?
No. A direct flight is the cheapest option for a flight between Boston to Louisville.
How have Boston to Louisville flight prices changed over time?
As of October 2026, prices for Boston to Louisville flights are approximately 23% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Boston Logan Intl to Louisville Intl?
Southwest is the most popular carrier operating from Boston Logan Intl to Louisville Intl
What airlines fly to Louisville?
American Airlines, Delta and Southwest are the top three most popular airlines that fly to Louisville from Boston according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 7 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.
How many flights depart from Boston to Louisville on average per day?
The number of flights available between Boston and Louisville is 1 per day as of October 2026. The most frequent departure time is 9:00AM, with 57% of daily flights leaving at noon.
How many flights depart from Boston to Louisville on average per week?
The number of flights available between Boston and Louisville is 13 per week as of October 2026. The most frequent departure day is Wed, with 23% of weekly flights leaving on this day.
When to book flights from Boston to Louisville
Cheap Boston to Louisville (BOS to SDF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to Louisville
Frequently asked questions about flying from Boston to Louisville
How far is Boston Logan Intl to Louisville Intl by plane?
The straight-line distance from Boston Logan Intl to Louisville Intl is 822.9 mi. 2h 42m is a normal flight duration for this route.
When did momondo last update prices for flights from Boston Logan Intl Airport to Louisville Intl Airport?
Prices for flights from Boston Logan Intl Airport to Louisville Intl Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Louisville Intl Airport?
As of October 2026, there are 5 operators available to choose from for flights from Boston Logan Intl Airport to Louisville Intl Airport.
How old do you have to be to fly from Boston Logan Intl Airport to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to Louisville?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to Louisville is Embraer 175 (93.04% of total bookings). The next most popular plane models are Airbus A220-300 (1.58%), Boeing 737 MAX 8 (0.95%), and Airbus A319 (0.63%).
What is the most popular airline from Boston to Louisville?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Boston to Louisville is American Airlines (52% of total bookings). The next most popular airlines are Delta (39%), Southwest (6%), and United Airlines (2%).
Best airlines flying from Boston to Louisville
Compare and see reviews for airlines that fly from Boston to Louisville with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $268 | Free Cancellation | Rating 7.1 3,045 reviews | |||
| PriceFrom $304 | Free Cancellation | Rating 7.8 8,633 reviews | |||
| PriceFrom $319 | Free Cancellation | Rating 7.0 12,134 reviews | |||
| PriceFrom $342 | Free Cancellation | Rating 7.9 4,219 reviews | |||
| PriceFrom $376 | Free Cancellation | Rating 7.4 10,308 reviews |
Delta Flights From Boston to Louisville
Across 5 Delta flights from Boston to Louisville this week, the average price was $496, with the best Delta deals starting from $304 round-trip. 8,633 users have rated Delta on momondo, with an average score of 7.8/10.
American Airlines Flights From Boston to Louisville
American Airlines (7.0/10 from 12,134 reviews) operates around 3 flights from Boston to Louisville in any given week. The average American Airlines airfare for this route is around $467, with deals from around $319 rare but found on momondo. Referenced prices are for round-trip Boston to Louisville flight searches in the last 72 hours.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Boston to Louisville?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Louisville for you.
Can I find flights from Boston to Louisville with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Boston to Louisville flights to just show those with flexible booking policies.
How can momondo help me find flights from Boston to Louisville?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisville from Boston.
I’m not ready to book a flight from Boston to Louisville right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Boston to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.