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$128+ Cheap flights from Maine to Louisville (SDF)

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SDF
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Maine to Louisville

Cheapest flights from Maine to Louisville
Explore the most affordable flight options available from Maine to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Delta deal was found by Cheapflights users on 7/27. 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 9/95:17 am
BGR
-
SDF
1 stop5h 48m
Delta
Wed 9/235:59 pm
SDF
-
BGR
1 stop5h 21m
Delta
Deal found 7/27$237
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/35:46 pm
BGR
-
SDF
1 stop5h 13m
American Airlines
Sat 9/125:29 pm
SDF
-
BGR
1 stop4h 29m
American Airlines
Deal found 7/26$267
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 9/58:00 am
BOS
-
SDF
1 stop9h 55m
American Airlines
Tue 9/86:08 am
SDF
-
BOS
1 stop8h 34m
American Airlines
Deal found 7/30$277
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/153:49 pm
BOS
-
SDF
Nonstop2h 40m
American Airlines
Wed 8/266:11 am
SDF
-
BOS
1 stop8h 31m
American Airlines
Deal found 7/28$287
This American Airlines deal was found by Cheapflights users on 7/27. 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 9/101:17 pm
BOS
-
SDF
Nonstop2h 36m
American Airlines
Thu 9/174:51 pm
SDF
-
BOS
Nonstop2h 32m
American Airlines
Deal found 7/27$298
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sun 9/612:02 pm
BOS
-
SDF
1 stop9h 36m
American Airlines
Tue 9/83:21 pm
SDF
-
BOS
1 stop8h 38m
American Airlines
Deal found 7/27$305
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/172:03 pm
BOS
-
SDF
Nonstop2h 37m
American Airlines
Tue 8/187:31 am
SDF
-
BOS
1 stop6h 55m
American Airlines
Deal found 7/27$307
This United Airlines deal was found by Cheapflights users on 7/27. 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 9/96:14 am
BGR
-
SDF
2 stops8h 23m
United Airlines
Wed 9/236:15 am
SDF
-
BGR
1 stop4h 40m
United Airlines
Deal found 7/27$307
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Fri 9/118:25 am
BOS
-
SDF
1 stop8h 53m
American Airlines
Sat 9/1211:10 am
SDF
-
BOS
1 stop7h 36m
American Airlines
Deal found 7/26$310
This American Airlines deal was found by Cheapflights users on 7/26. 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 11/238:16 am
BOS
-
SDF
1 stop9h 34m
American Airlines
Tue 12/16:00 am
SDF
-
BOS
1 stop8h 48m
American Airlines
Deal found 7/26$313
This American Airlines deal was found by Cheapflights users on 7/25. 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 8/228:00 am
BOS
-
SDF
1 stop9h 55m
American Airlines
Mon 8/245:10 pm
SDF
-
BOS
Nonstop2h 31m
American Airlines
Deal found 7/25$320
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/12:38 pm
PWM
-
SDF
1 stop4h 37m
United Airlines
Wed 9/27:10 am
SDF
-
PWM
1 stop7h 24m
United Airlines
Deal found 7/28$320

Find flight deals from Maine to Louisville

Keep the following information in mind while searching for Maine to Louisville flight deals. Data was last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Delta)

One-way from

$128
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$459
Provider with most accurate pricing for Portland-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Louisville Intl flights.
Search Deals
From Maine to Louisville Intl
Search Deals
One-way flight from Maine to Louisville Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maine to Louisville 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 July 30, 2026.
Use the filters below to find and compare flights from Maine to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangorLouisville

BGR - SDF

BGRSDF

Bangor

Wed 9/9

5:17 am-11:05 am

1 stop5h 48m

Louisville Intl

Wed 9/23

5:59 pm-11:20 pm

1 stop5h 21m

$237

BangorLouisville

BGR - SDF

BGRSDF

Bangor

Tue 8/11

6:14 am-12:22 pm

1 stop6h 08m

Louisville Intl

Sat 8/15

7:10 am-2:23 pm

1 stop7h 13m

$321

BangorLouisville

BGR - SDF

BGRSDF

Bangor

Wed 8/12

5:20 am-11:05 am

1 stop5h 45m

Louisville Intl

Sat 8/15

8:05 am-1:19 pm

1 stop5h 14m

$321

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Thu 8/20

6:30 am-1:27 pm

1 stop6h 57m

Louisville Intl

Wed 8/26

10:34 am-4:01 pm

1 stop5h 27m

$325

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Sat 9/5

8:10 am-4:15 pm

2 stops8h 05m

Louisville Intl

Tue 9/8

5:00 pm-9:30 pm

1 stop4h 30m

$326

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Fri 9/11

12:40 pm-8:35 pm

2 stops7h 55m

Louisville Intl

Fri 9/18

3:20 pm-10:25 pm

1 stop7h 05m

$329

BostonLouisville

BOS - SDF

BOSSDF

Boston Logan Intl

Thu 10/22

9:05 am-5:00 pm

2 stops7h 55m

Louisville Intl

Sat 10/24

7:05 am-1:50 pm

2 stops6h 45m

$331

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Thu 8/20

5:55 am-10:00 am

1 stop4h 05m

Louisville Intl

Wed 8/26

7:05 am-5:15 pm

2 stops10h 10m

$356

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 8/25

5:45 am-3:15 pm

2 stops9h 30m

Louisville Intl

Sat 8/29

6:45 am-3:00 pm

2 stops8h 15m

$362

BangorLouisville

BGR - SDF

BGRSDF

Bangor

Thu 9/3

6:14 am-2:37 pm

2 stops8h 23m

Louisville Intl

Sat 9/12

9:00 am-6:26 pm

2 stops9h 26m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 54 resultsSorted by cheapest first
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Best time to book a flight from Maine to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Maine with our price prediction graph.
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 Maine to Louisville

What is the cheapest month to book a flight from Maine to Louisville?

Currently, January is the cheapest month in which you can book a flight from Maine to Louisville (average of $278). Flying from Maine to Louisville in July is currently the most expensive (average of $519). 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.

How much does it cost to fly round-trip from Maine to Louisville?

Airfare is below average for this route at the moment.
Maine to Louisville flights typically cost between $426 and $738 in September.
The cheapest round-trip price found within the last 5 days was $320 on United Airlines (Sep 1-Sep 2).

Related info for your journey

Find useful and relevant information for your journey from Maine to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from Maine?

    Louisville Intl (SDF) is the airport you will fly into if you book a flight from Maine to Louisville. It is only a 5.3 mi journey from Louisville Intl (SDF) to Louisville’s city center.

  • How long is the flight from Maine to Louisville?

    Airlines like United Airlines, Delta, and Southwest fly from Maine to Louisville in about 6h 57m. The time it takes to get you to your destination can typically vary by up to 1h 26m. The distance between Maine and Louisville is about 887 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Maine to Louisville?

    The most popular route from Maine to Louisville is Boston Logan Intl - Louisville Intl. You may also consider Portland - Louisville Intl or Bangor - Louisville Intl.

  • Can I find deals for flights from Maine to Louisville that include hotel bookings?

    Yes. In addition to deals on Maine to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maine to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to Louisville.

  • Can I find deals for business class flights from Maine to Louisville?

    Yes. Cheapflights offers flight deals from Maine to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Maine to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Maine to Louisville (average of $278). Flying from Maine to Louisville in July is currently the most expensive (average of $519). 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.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maine to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Maine to Louisville

Discover the top 4 airlines that operate flights from Maine to Louisville. 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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$397FlexibilityNo cancel feeOn-time71%
DeltaCheapest$267Average$416FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$288Average$469FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$306Average$467FlexibilityNo cancel feeOn-time69%

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