$130+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOS
Jun 3 — Jun 101
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
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 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 May 4, 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 May 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 6/110:33 am
SDF
- BOS
1 stop13h 21m
Multiple Airlines
Thu 6/46:00 am
BOS
- SDF
2 stops29h 21m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/288:15 am
SDF
- BOS
1 stop7h 41m
American Airlines
Wed 6/32:00 pm
BOS
- SDF
Nonstop2h 37m
American Airlines
Deal found 4/30![American Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/318:59 pm
SDF
- BOS
1 stop13h 38m
Multiple Airlines
Wed 6/38:44 am
BOS
- SDF
2 stops30h 52m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/308:06 pm
SDF
- BOS
2 stops35h 43m
Multiple Airlines
Sat 6/65:45 am
BOS
- SDF
1 stop29h 36m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/19:10 pm
SDF
- BOS
1 stop26h 44m
Multiple Airlines
Sat 8/110:59 am
BOS
- SDF
1 stop6h 02m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 5/1. 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 5/1![Delta logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 9/216:20 pm
SDF
- BOS
1 stop30h 02m
Spirit Airlines
Thu 10/16:00 am
BOS
- SDF
1 stop11h 25m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 4/30. 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 6/94:15 pm
SDF
- BOS
2 stops7h 15m
Southwest
Sat 6/135:20 am
BOS
- SDF
1 stop4h 40m
Southwest
Deal found 4/30![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 4/30. 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 7/812:49 pm
SDF
- BOS
Nonstop2h 36m
Delta
Fri 7/179:26 am
BOS
- SDF
Nonstop2h 43m
Delta
Deal found 4/30![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 5/4. 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.
Wed 8/262:09 pm
SDF
- BOS
1 stop5h 32m
Delta
Wed 9/29:30 am
BOS
- SDF
Nonstop2h 40m
Delta
Deal found 5/4![Delta logo]()
$365
This Southwest deal was found by Cheapflights users on 5/3. 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.
Thu 5/285:25 pm
SDF
- BOS
2 stops6h 30m
Southwest
Wed 6/32:25 pm
BOS
- SDF
2 stops8h 30m
Southwest
Deal found 5/3![Southwest logo]()
$366
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 May 4, 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 May 4, 2026.
This Southwest deal was found by Cheapflights users on 5/2. 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 6/105:25 pm
SDF
- BOS
1 stop6h 05m
Southwest
Tue 6/165:25 am
BOS
- SDF
1 stop7h 00m
Southwest
Deal found 5/2![Southwest logo]()
$355
This Delta deal was found by Cheapflights users on 5/3. 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 8/262:34 pm
SDF
- BOS
1 stop5h 28m
Delta
Wed 9/29:30 am
BOS
- SDF
Nonstop2h 40m
Delta
Deal found 5/3![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 7/32:13 pm
SDF
- BOS
1 stop9h 14m
Delta
Fri 7/109:26 am
BOS
- SDF
Nonstop2h 43m
Delta
Deal found 4/29![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 4/29. 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 6/83:00 pm
SDF
- BOS
2 stops8h 25m
Southwest
Thu 6/117:55 am
BOS
- SDF
2 stops9h 00m
Southwest
Deal found 4/29![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 5/3. 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 9/236:05 am
SDF
- BOS
1 stop6h 19m
Delta
Sun 9/279:30 am
BOS
- SDF
Nonstop2h 40m
Delta
Deal found 5/3![Delta logo]()
$404
This Southwest deal was found by Cheapflights users on 5/3. 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 9/237:05 am
SDF
- BOS
2 stops7h 35m
Southwest
Sun 9/275:55 am
BOS
- SDF
2 stops8h 15m
Southwest
Deal found 5/3![Southwest logo]()
$415
This Delta deal was found by Cheapflights users on 4/30. 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 10/15:00 pm
SDF
- BOS
1 stop6h 22m
Delta
Sat 10/35:30 am
BOS
- SDF
1 stop4h 21m
Delta
Deal found 4/30![Delta logo]()
$413
This Southwest deal was found by Cheapflights users on 4/29. 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 5/194:40 pm
SDF
- BOS
1 stop5h 50m
Southwest
Thu 5/211:20 pm
BOS
- SDF
2 stops8h 25m
Southwest
Deal found 4/29![Southwest logo]()
$421
This Delta deal was found by Cheapflights users on 4/29. 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
Mon 7/134:00 pm
BOS
- SDF
1 stop4h 59m
Delta
Deal found 4/29![Delta logo]()
$413
This Southwest deal was found by Cheapflights users on 5/3. 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.
Sun 5/315:50 am
SDF
- BOS
1 stop4h 05m
Southwest
Wed 6/36:20 am
BOS
- SDF
1 stop6h 20m
Southwest
Deal found 5/3![Southwest logo]()
$422
This Southwest deal was found by Cheapflights users on 5/3. 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.
Mon 6/293:00 pm
SDF
- BOS
2 stops8h 25m
Southwest
Wed 7/85:25 am
BOS
- SDF
2 stops6h 40m
Southwest
Deal found 5/3![Southwest logo]()
$424
Last-minute flights from Louisville to BostonDiscover last-minute flight deals from Louisville to Boston. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Boston. Data last updated May 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/275:43 pm
SDF
- BOS
1 stop6h 57m
American Airlines
Wed 6/36:00 am
BOS
- SDF
1 stop8h 02m
American Airlines
Deal found 5/1![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/288:15 am
SDF
- BOS
1 stop7h 41m
American Airlines
Wed 6/32:00 pm
BOS
- SDF
Nonstop2h 37m
American Airlines
Deal found 4/30![American Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 5/3. 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.
Thu 5/285:25 pm
SDF
- BOS
2 stops6h 30m
Southwest
Wed 6/32:25 pm
BOS
- SDF
2 stops8h 30m
Southwest
Deal found 5/3![Southwest logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/308:06 pm
SDF
- BOS
2 stops35h 43m
Multiple Airlines
Sat 6/65:45 am
BOS
- SDF
1 stop29h 36m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/318:59 pm
SDF
- BOS
1 stop13h 38m
Multiple Airlines
Wed 6/38:44 am
BOS
- SDF
2 stops30h 52m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 6/110:33 am
SDF
- BOS
1 stop13h 21m
Multiple Airlines
Thu 6/46:00 am
BOS
- SDF
2 stops29h 21m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/19:10 pm
SDF
- BOS
1 stop26h 44m
Multiple Airlines
Sat 8/110:59 am
BOS
- SDF
1 stop6h 02m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 4/29. 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 6/33:45 pm
SDF
- BOS
1 stop6h 55m
Southwest
Wed 6/101:25 pm
BOS
- SDF
1 stop7h 00m
Southwest
Deal found 4/29![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 4/29. 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 6/43:35 pm
SDF
- BOS
1 stop7h 25m
Southwest
Wed 7/15:25 am
BOS
- SDF
2 stops6h 40m
Southwest
Deal found 4/29![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 4/30. 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 6/94:15 pm
SDF
- BOS
2 stops7h 15m
Southwest
Sat 6/135:20 am
BOS
- SDF
1 stop4h 40m
Southwest
Deal found 4/30![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 5/1. 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 6/105:26 pm
SDF
- BOS
1 stop6h 28m
Delta
Tue 6/169:28 am
BOS
- SDF
Nonstop2h 38m
Delta
Deal found 5/1![Delta logo]()
$365
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 May 4, 2026.
Search for one-way flight options from Louisville to Boston. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 10/257:42 pm
SDF
- BOS
1 stop16h 27m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/286:55 pm
SDF
- BOS
2 stops16h 11m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 6/2412:20 pm
SDF
- BOS
1 stop11h 38m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 5/1. 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
SDF
- BOS
1 stop13h 37m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 7/278:48 pm
SDF
- BOS
1 stop27h 10m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Thu 5/212:27 pm
SDF
- BOS
1 stop20h 39m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/278:06 pm
SDF
- BOS
2 stops35h 43m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 10/267:08 pm
SDF
- BOS
1 stop29h 14m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/217:43 pm
SDF
- BOS
1 stop14h 58m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$166
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 May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $343 (Kiwi.com) |
One-way from | $130 (Kiwi.com) |
Popular in | April |
Cheapest in | September |
Average price | $380 |
Good round-trip deal | $504 or less |
Good one-way deal | $338 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 May 4, 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 - BOS
SDFBOS
Louisville Intl
Wed 6/10
5:25 pm-11:30 pm
1 stop6h 05m
Boston Logan Intl
Tue 6/16
5:25 am-12:25 pm
1 stop7h 00m
$355
Quickest round-trip
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 8/26
2:34 pm-8:02 pm
1 stop5h 28m
Boston Logan Intl
Wed 9/2
9:30 am-12:10 pm
Nonstop2h 40m
$365
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Fri 7/3
2:13 pm-11:27 pm
1 stop9h 14m
Boston Logan Intl
Fri 7/10
9:26 am-12:09 pm
Nonstop2h 43m
$389
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Mon 6/8
3:00 pm-11:25 pm
2 stops8h 25m
Boston Logan Intl
Thu 6/11
7:55 am-4:55 pm
2 stops9h 00m
$404
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 9/23
6:05 am-12:24 pm
1 stop6h 19m
Boston Logan Intl
Sun 9/27
9:30 am-12:10 pm
Nonstop2h 40m
$404
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Thu 10/1
5:00 pm-11:22 pm
1 stop6h 22m
Boston Logan Intl
Sat 10/3
5:30 am-9:51 am
1 stop4h 21m
$413
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 7/1
5:26 pm-11:54 pm
1 stop6h 28m
Boston Logan Intl
Mon 7/13
4:00 pm-8:59 pm
1 stop4h 59m
$413
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Wed 9/23
7:05 am-2:40 pm
2 stops7h 35m
Boston Logan Intl
Sun 9/27
5:55 am-2:10 pm
2 stops8h 15m
$415
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Tue 5/19
4:40 pm-10:30 pm
1 stop5h 50m
Boston Logan Intl
Thu 5/21
1:20 pm-9:45 pm
2 stops8h 25m
$421
LouisvilleBoston
SDF - BOS
SDFBOS
Louisville Intl
Sun 5/31
5:50 am-9:55 am
1 stop4h 05m
Boston Logan Intl
Wed 6/3
6:20 am-12:40 pm
1 stop6h 20m
$422
Showing 1-10 of 21 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 May.
| 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 68 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 $317). Flying from Louisville to Boston in April is currently the most expensive (average of $495). 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 May 4, 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 May 4, 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.
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 locationsMedford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
Seabrook
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Waltham
Lowell
Braintree
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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 May 4, 2026.
Complete your trip
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Louisville and Boston flights
Browse other Louisville and Boston flight options. Last updated on May 4, 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 May 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Louisville to Boston
Discover the top 5 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 May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$191 | Average$216 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$216 | Average$383 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$217 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$261 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$294 | Average$437 | FlexibilityNo cancel fee | On-time69% |