$121+ Cheap flights from Louisville to Boston (SDF - BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOS
Nov 15 — Nov 221
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Louisville to Boston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Louisville Intl to Boston Logan Intl are usually found in January or December, booked 32 days in advance, depart on a Thursday or Saturday and return on a Wednesday
Cheap flight deals from Louisville to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from Louisville to BostonExplore the most affordable flight options available from Louisville to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2026.
Explore the most affordable flight options available from Louisville to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2026.
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:55 am -
1 stop8h 56m
Mon 12/149:26 am -
1 stop8h 28m
Deal found 10/12![American Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
1 stop8h 12m
Mon 11/169:23 am -
1 stop8h 20m
Deal found 10/12![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:12 pm -
2 stops16h 59m
Thu 12/1010:29 am -
1 stop25h 19m
Deal found 10/15![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:53 pm -
1 stop17h 18m
Thu 12/1010:29 am -
1 stop25h 19m
Deal found 10/15![Allegiant Air logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:54 pm -
1 stop12h 35m
Sat 11/219:25 am -
1 stop6h 01m
Deal found 10/16![Multiple Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:41 am -
2 stops11h 25m
Sat 1/96:55 am -
1 stop6h 54m
Deal found 10/12![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:40 am -
1 stop4h 00m
Tue 11/105:10 am -
1 stop7h 05m
Deal found 10/14![Southwest logo]()
$377
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:55 am -
1 stop8h 54m
Sat 12/54:10 pm -
Nonstop2h 53m
Deal found 10/12![American Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:05 pm -
2 stops7h 40m
Wed 11/185:30 am -
2 stops8h 50m
Deal found 10/14![Southwest logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:34 pm -
1 stop13h 37m
Sat 10/319:02 am -
2 stops24h 26m
Deal found 10/16![Allegiant Air logo]()
$389
This Southwest deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:35 pm -
1 stop6h 10m
Mon 11/95:35 am -
1 stop6h 55m
Deal found 10/12![Southwest logo]()
$391
Best flights from Louisville to BostonDiscover carefully curated flight deals from Louisville to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2026.
Discover carefully curated flight deals from Louisville to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2026.
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:10 pm -
1 stop6h 45m
Thu 11/191:10 pm -
2 stops7h 30m
Deal found 10/13![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:30 pm -
Nonstop2h 31m
Sun 11/2910:30 am -
Nonstop2h 50m
Deal found 10/13![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:10 am -
3 stops16h 49m
Mon 12/147:33 pm -
1 stop19h 18m
Deal found 10/13![United Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
1 stop6h 45m
Mon 11/95:10 pm -
1 stop7h 15m
Deal found 10/15![Southwest logo]()
$425
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:50 am -
2 stops8h 20m
Sun 11/225:10 am -
2 stops9h 55m
Deal found 10/14![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:50 am -
1 stop4h 40m
Sat 11/72:15 pm -
1 stop4h 55m
Deal found 10/16![Delta logo]()
$547
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:45 pm -
2 stops8h 05m
Thu 11/511:45 am -
2 stops9h 20m
Deal found 10/13![Southwest logo]()
$522
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:35 pm -
1 stop6h 50m
Wed 11/43:30 pm -
1 stop6h 45m
Deal found 10/16![Southwest logo]()
$547
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:45 pm -
2 stops8h 10m
Sun 11/85:35 am -
1 stop6h 55m
Deal found 10/16![Southwest logo]()
$554
Last-minute flights from Louisville to BostonDiscover last-minute flight deals from Louisville to Boston. Data last updated October 16, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Boston. Data last updated October 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:34 pm -
1 stop13h 37m
Sat 10/319:02 am -
2 stops24h 26m
Deal found 10/16![Allegiant Air logo]()
$389
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:40 am -
1 stop4h 00m
Tue 11/105:10 am -
1 stop7h 05m
Deal found 10/14![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:35 pm -
1 stop6h 10m
Mon 11/95:35 am -
1 stop6h 55m
Deal found 10/12![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:40 am -
1 stop4h 00m
Sat 11/711:35 am -
1 stop10h 50m
Deal found 10/14![Southwest logo]()
$396
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 am -
1 stop8h 12m
Mon 11/169:23 am -
1 stop8h 20m
Deal found 10/12![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:30 am -
1 stop10h 10m
Wed 11/1812:39 pm -
1 stop8h 48m
Deal found 10/14![American Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:05 pm -
2 stops7h 40m
Wed 11/185:30 am -
2 stops8h 50m
Deal found 10/14![Southwest logo]()
$387
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
1 stop8h 12m
Mon 11/169:23 am -
1 stop8h 20m
Deal found 10/12![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:54 pm -
1 stop12h 35m
Sat 11/219:25 am -
1 stop6h 01m
Deal found 10/16![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:54 pm -
1 stop12h 35m
Fri 11/2011:06 am -
2 stops28h 20m
Deal found 10/14![Multiple Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:01 am -
1 stop8h 42m
Sun 11/152:00 pm -
Nonstop2h 49m
Deal found 10/11![American Airlines logo]()
$398
One-way flights from Louisville to BostonSearch for one-way flight options from Louisville to Boston. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
Search for one-way flight options from Louisville to Boston. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:48 pm -
1 stop16h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Allegiant Air logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/76:48 pm -
1 stop16h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Allegiant Air logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/147:07 pm -
1 stop15h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Allegiant Air logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:54 pm -
1 stop12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Allegiant Air logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:09 pm -
2 stops36h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:53 pm -
3 stops40h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:54 pm -
1 stop12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Allegiant Air logo]()
$169
Find flight deals from Louisville to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (American Airlines) |
One-way from | $121 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $433 |
Good round-trip deal | $483 or less |
Good one-way deal | $348 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 16, 2026.
Use the filters below to find and compare flights from Louisville to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Wed 1/6
3:35 pm-9:40 pm
1 stop6h 05m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$189
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Mon 11/16
3:50 pm-10:15 pm
1 stop6h 25m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Wed 12/23
2:10 pm-10:55 pm
2 stops8h 45m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$218
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Wed 4/14
2:30 pm-8:35 pm
1 stop6h 05m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Sat 1/16
3:24 pm-8:43 am
2 stops17h 19m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$262
Quickest round-trip
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Tue 11/3
3:10 pm-7:00 pm
1 stop3h 50m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Tue 11/10
7:50 am-5:11 pm
2 stops9h 21m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$297
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Sat 11/28
6:30 am-11:45 am
1 stop5h 15m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$306
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Thu 11/12
5:10 pm-11:55 pm
1 stop6h 45m
Boston Logan Intl
Thu 11/19
1:10 pm-8:40 pm
2 stops7h 30m
$382
LouisvilleBoston
SDF Louisville Intl - BOS Boston Logan Intl
SDFBOS
Louisville Intl
Thu 11/5
5:10 pm-11:55 pm
1 stop6h 45m
Boston Logan Intl
Mon 11/9
5:10 pm-12:25 am
1 stop7h 15m
$425
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Louisville to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Boston in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Louisville to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Louisville with our price prediction graph.
SDF-BOS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Louisville to Boston
How far ahead should I book a flight from Louisville to Boston?
Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Louisville to Boston?
Currently, January is the cheapest month in which you can book a flight from Louisville to Boston (average of $365). Flying from Louisville to Boston in April is currently the most expensive (average of $502). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SDF to BOS?
Find hourly flight availability from Louisville to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 71% on flights from Louisville to Boston by exploring options for tickets in the morning.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated October 16, 2026.
Read through reviews of airlines operating flights from Louisville to Boston, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Entertainment
7.4
Food
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Comfort
8.0
Entertainment
7.4
Food
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Comfort
8.0
Entertainment
7.4
Food
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Comfort
8.0
Entertainment
7.4
Food
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Comfort
8.0
Entertainment
7.4
Food
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Louisville to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Londonderry
York Beach
Revere
Fitchburg
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Boston flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Louisville
Popular flights
Alternative routes for Louisville to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 16, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Boston by cabin class
Find flights from Louisville to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Boston flights
Browse other Louisville and Boston flight options. Last updated on October 16, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on October 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Louisville to Boston
Discover the top 4 airlines that operate flights from Louisville to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$414 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$303 | Average$446 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$304 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$345 | Average$438 | FlexibilityNo cancel fee | On-time69% |