$129+ Cheap flights from Louisville to Boston (SDF - BOS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOS
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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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
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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 September or November, booked 69 days in advance, depart on a Saturday or Thursday and return on a Saturday
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 June 8, 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 June 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 9/910:56 am
SDF
- BOS
1 stop23h 36m
Multiple Airlines
Sun 10/412:34 pm
BOS
- SDF
1 stop29h 57m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/262:56 pm
SDF
- BOS
2 stops19h 13m
Multiple Airlines
Wed 9/28:47 am
BOS
- SDF
1 stop5h 29m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/129:19 pm
SDF
- BOS
1 stop11h 50m
Multiple Airlines
Fri 7/178:41 am
BOS
- SDF
1 stop23h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/2610:58 am
SDF
- BOS
1 stop24h 49m
Multiple Airlines
Fri 7/318:41 am
BOS
- SDF
1 stop23h 55m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 6/7. 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 9/263:50 pm
SDF
- BOS
1 stop5h 50m
Southwest
Tue 9/292:45 pm
BOS
- SDF
1 stop6h 45m
Southwest
Deal found 6/7![Southwest logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 10/149:11 pm
SDF
- BOS
1 stop13h 21m
Multiple Airlines
Sun 10/1812:34 pm
BOS
- SDF
1 stop30h 11m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 6/8. 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 8/265:10 pm
SDF
- BOS
Nonstop2h 31m
American Airlines
Wed 9/22:03 pm
BOS
- SDF
Nonstop2h 37m
American Airlines
Deal found 6/8![American Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 9/910:56 am
SDF
- BOS
1 stop23h 36m
Multiple Airlines
Fri 10/211:01 am
BOS
- SDF
1 stop29h 23m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 9/2610:56 am
SDF
- BOS
1 stop23h 36m
Multiple Airlines
Fri 10/211:01 am
BOS
- SDF
1 stop29h 23m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 9/1910:56 am
SDF
- BOS
1 stop23h 36m
Multiple Airlines
Sat 9/2611:05 am
BOS
- SDF
1 stop30h 19m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$363
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 June 8, 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 June 8, 2026.
This Delta deal was found by Cheapflights users on 6/3. 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 11/41:00 pm
SDF
- BOS
Nonstop2h 30m
Delta
Sat 11/79:30 am
BOS
- SDF
Nonstop2h 48m
Delta
Deal found 6/3![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 7/214:15 pm
SDF
- BOS
2 stops7h 10m
Southwest
Tue 7/282:25 pm
BOS
- SDF
2 stops8h 10m
Southwest
Deal found 6/7![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 6/8. 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 8/262:09 pm
SDF
- BOS
1 stop6h 36m
Delta
Wed 9/212:00 pm
BOS
- SDF
1 stop4h 44m
Delta
Deal found 6/8![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 6/3. 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 7/224:15 pm
SDF
- BOS
2 stops7h 20m
Southwest
Wed 7/292:25 pm
BOS
- SDF
2 stops8h 10m
Southwest
Deal found 6/3![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 6/6. 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 10/101:00 pm
SDF
- BOS
Nonstop2h 30m
Delta
Tue 10/209:00 am
BOS
- SDF
1 stop7h 27m
Delta
Deal found 6/6![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 7/74:15 pm
SDF
- BOS
1 stop7h 10m
Southwest
Fri 7/107:50 pm
BOS
- SDF
1 stop4h 40m
Southwest
Deal found 6/7![Southwest logo]()
$414
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 10/15:59 pm
SDF
- BOS
1 stop5h 18m
Delta
Sat 10/109:30 am
BOS
- SDF
Nonstop2h 48m
Delta
Deal found 6/8![Delta logo]()
$404
This Southwest deal was found by Cheapflights users on 6/6. 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 10/125:15 pm
SDF
- BOS
1 stop4h 00m
Southwest
Tue 10/2012:50 pm
BOS
- SDF
1 stop7h 40m
Southwest
Deal found 6/6![Southwest logo]()
$414
This Delta deal was found by Cheapflights users on 6/3. 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.
Mon 7/276:00 am
SDF
- BOS
1 stop7h 21m
Delta
Tue 8/49:30 am
BOS
- SDF
Nonstop2h 42m
Delta
Deal found 6/3![Delta logo]()
$404
This Southwest deal was found by Cheapflights users on 6/3. 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.
Tue 7/74:15 pm
SDF
- BOS
2 stops6h 30m
Southwest
Sun 7/1210:05 pm
BOS
- SDF
1 stop12h 00m
Southwest
Deal found 6/3![Southwest logo]()
$425
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 9/86:26 pm
SDF
- BOS
1 stop5h 06m
Delta
Sun 10/45:45 am
BOS
- SDF
1 stop4h 09m
Delta
Deal found 6/3![Delta logo]()
$414
Last-minute flights from Louisville to BostonDiscover last-minute flight deals from Louisville to Boston. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Boston. Data last updated June 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Tue 6/3010:11 am
SDF
- BOS
1 stop8h 33m
American Airlines
Tue 7/71:59 pm
BOS
- SDF
Nonstop2h 41m
American Airlines
Deal found 6/4![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/3. 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 7/15:26 pm
SDF
- BOS
1 stop6h 28m
Delta
Wed 7/156:00 am
BOS
- SDF
1 stop5h 02m
Delta
Deal found 6/3![Delta logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/112:16 pm
SDF
- BOS
2 stops13h 11m
Multiple Airlines
Sat 7/410:59 am
BOS
- SDF
1 stop5h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 6/4. 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 7/45:30 pm
SDF
- BOS
Nonstop2h 38m
Delta
Tue 7/79:26 am
BOS
- SDF
Nonstop2h 43m
Delta
Deal found 6/4![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 6/7. 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 7/45:30 pm
SDF
- BOS
Nonstop2h 38m
Delta
Wed 7/85:55 pm
BOS
- SDF
1 stop6h 31m
Delta
Deal found 6/7![Delta logo]()
$365
This Southwest deal was found by Cheapflights users on 6/7. 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 7/48:50 am
SDF
- BOS
1 stop6h 55m
Southwest
Tue 7/75:50 am
BOS
- SDF
2 stops9h 45m
Southwest
Deal found 6/7![Southwest logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/129:19 pm
SDF
- BOS
1 stop11h 50m
Multiple Airlines
Fri 7/178:41 am
BOS
- SDF
1 stop23h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/2610:58 am
SDF
- BOS
1 stop24h 49m
Multiple Airlines
Fri 7/318:41 am
BOS
- SDF
1 stop23h 55m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/2610:58 am
SDF
- BOS
1 stop24h 49m
Allegiant Air
Sat 8/110:59 am
BOS
- SDF
1 stop6h 02m
Allegiant Air
Deal found 6/4![Allegiant Air logo]()
$386
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 June 8, 2026.
Search for one-way flight options from Louisville to Boston. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 8/19:03 pm
SDF
- BOS
1 stop12h 06m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 8/69:24 pm
SDF
- BOS
2 stops35h 41m
Allegiant Air
Deal found 6/7![Allegiant Air logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 9/66:55 pm
SDF
- BOS
2 stops16h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/306:55 pm
SDF
- BOS
2 stops16h 10m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/199:19 pm
SDF
- BOS
1 stop11h 50m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/2610:58 am
SDF
- BOS
1 stop24h 49m
Allegiant Air
Deal found 6/3![Allegiant Air logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 7/309:35 pm
SDF
- BOS
1 stop14h 12m
Allegiant Air
Deal found 6/6![Allegiant Air logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/278:24 pm
SDF
- BOS
2 stops36h 50m
Allegiant Air
Deal found 6/3![Allegiant Air logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 7/96:55 pm
SDF
- BOS
2 stops16h 09m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/3111:19 am
SDF
- BOS
2 stops20h 33m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$175
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 June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $295 (Kiwi.com) |
One-way from | $129 (Kiwi.com) |
Popular in | April |
Cheapest in | September |
Average price | $431 |
Good round-trip deal | $553 or less |
Good one-way deal | $383 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 2,558,603 searches. Data last updated June 8, 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
Quickest round-trip
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 11/4
1:00 pm-3:30 pm
Nonstop2h 30m
Boston Logan Intl
Sat 11/7
9:30 am-12:18 pm
Nonstop2h 48m
$355
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 8/26
2:09 pm-8:45 pm
1 stop6h 36m
Boston Logan Intl
Wed 9/2
12:00 pm-4:44 pm
1 stop4h 44m
$375
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Sat 10/10
1:00 pm-3:30 pm
Nonstop2h 30m
Boston Logan Intl
Tue 10/20
9:00 am-4:27 pm
1 stop7h 27m
$375
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Tue 7/21
4:15 pm-11:25 pm
2 stops7h 10m
Boston Logan Intl
Tue 7/28
2:25 pm-10:35 pm
2 stops8h 10m
$385
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 7/22
4:15 pm-11:35 pm
2 stops7h 20m
Boston Logan Intl
Wed 7/29
2:25 pm-10:35 pm
2 stops8h 10m
$385
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Thu 10/1
5:59 pm-11:17 pm
1 stop5h 18m
Boston Logan Intl
Sat 10/10
9:30 am-12:18 pm
Nonstop2h 48m
$404
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Mon 7/27
6:00 am-1:21 pm
1 stop7h 21m
Boston Logan Intl
Tue 8/4
9:30 am-12:12 pm
Nonstop2h 42m
$404
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Tue 7/7
4:15 pm-11:25 pm
1 stop7h 10m
Boston Logan Intl
Fri 7/10
7:50 pm-12:30 am
1 stop4h 40m
$414
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Mon 10/12
5:15 pm-9:15 pm
1 stop4h 00m
Boston Logan Intl
Tue 10/20
12:50 pm-8:30 pm
1 stop7h 40m
$414
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Tue 9/8
6:26 pm-11:32 pm
1 stop5h 06m
Boston Logan Intl
Sun 10/4
5:45 am-9:54 am
1 stop4h 09m
$414
Showing 1-10 of 23 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 June.
| 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
Prices
Airlines
How far ahead should I book a flight from Louisville to Boston?
Booking 74 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, September is the cheapest month in which you can book a flight from Louisville to Boston (average of $312). 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 June 8, 2026.
When flying from Louisville to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 June 8, 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.
Food
7.0
Overall
7.9
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
7.9
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
7.9
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
7.9
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
7.9
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
Cambridge
Concord
Hampton Beach
Brockton
Watertown
Seekonk
Cranston
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Swansea
Old Orchard Beach
Lowell
Smithfield
Braintree
Sandwich
Browse thousands of different options on Cheapflights for your next trip
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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 June 8, 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 June 8, 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 June 8, 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 2,558,603 searches. Data last updated June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$216 | Average$383 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$217 | Average$391 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$261 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$294 | Average$437 | FlexibilityNo cancel fee | On-time69% |