$165+ Cheap flights from Portland, ME to Louisville (PWM - 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SDF
May 16 — May 231
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Louisville 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.Cheap flight deals from Portland to Louisville
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Cheapest flights from Portland to LouisvilleExplore the most affordable flight options available from Portland to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 16, 2026.
Explore the most affordable flight options available from Portland to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 16, 2026.
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:02 am
PWM
- SDF
1 stop4h 38m
Delta
Tue 5/125:47 pm
SDF
- PWM
1 stop5h 25m
Delta
Deal found 4/13![Delta logo]()
$335
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/56:00 am
PWM
- SDF
1 stop7h 31m
Delta
Sat 5/97:50 am
SDF
- PWM
1 stop4h 05m
Delta
Deal found 4/13![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:39 pm
PWM
- SDF
2 stops8h 17m
United Airlines
Tue 5/195:50 am
SDF
- PWM
1 stop4h 28m
United Airlines
Deal found 4/14![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 5/53:39 pm
PWM
- SDF
2 stops8h 17m
United Airlines
Sat 5/99:10 am
SDF
- PWM
1 stop5h 04m
United Airlines
Deal found 4/13![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 4/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 am
PWM
- SDF
2 stops8h 55m
Southwest
Wed 6/104:20 pm
SDF
- PWM
2 stops6h 35m
Southwest
Deal found 4/11![Southwest logo]()
$345
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:01 pm
PWM
- SDF
1 stop6h 22m
American Airlines
Wed 5/206:00 am
SDF
- PWM
1 stop4h 07m
American Airlines
Deal found 4/13![American Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 4/13. 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 5/131:18 pm
PWM
- SDF
1 stop7h 40m
Delta
Sat 5/165:47 pm
SDF
- PWM
1 stop5h 22m
Delta
Deal found 4/13![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/94:49 pm
PWM
- SDF
1 stop4h 29m
Delta
Thu 5/145:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:00 am
PWM
- SDF
1 stop6h 08m
Delta
Mon 5/185:30 pm
SDF
- PWM
1 stop16h 53m
Delta
Deal found 4/13![Delta logo]()
$360
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/92:05 pm
PWM
- SDF
1 stop5h 45m
Delta
Mon 5/185:30 pm
SDF
- PWM
1 stop16h 53m
Delta
Deal found 4/13![Delta logo]()
$361
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:02 am
PWM
- SDF
1 stop4h 38m
Delta
Fri 5/155:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$371
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/912:50 pm
PWM
- SDF
1 stop4h 22m
Delta
Fri 5/155:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$372
Best flights from Portland to LouisvilleDiscover carefully curated flight deals from Portland to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2026.
Discover carefully curated flight deals from Portland to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2026.
This Southwest deal was found by Cheapflights users on 4/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 am
PWM
- SDF
1 stop6h 30m
Southwest
Wed 6/104:15 pm
SDF
- PWM
1 stop6h 40m
Southwest
Deal found 4/11![Southwest logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:15 am
PWM
- SDF
1 stop7h 37m
American Airlines
Fri 5/295:43 pm
SDF
- PWM
1 stop5h 04m
American Airlines
Deal found 4/13![American Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/134:50 pm
PWM
- SDF
1 stop5h 40m
United Airlines
Wed 5/205:50 am
SDF
- PWM
2 stops7h 37m
United Airlines
Deal found 4/13![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 4/13. 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.
Wed 5/273:55 pm
PWM
- SDF
1 stop7h 00m
Southwest
Fri 5/295:25 pm
SDF
- PWM
2 stops6h 00m
Southwest
Deal found 4/13![Southwest logo]()
$386
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:51 pm
PWM
- SDF
1 stop5h 39m
United Airlines
Wed 5/279:00 am
SDF
- PWM
1 stop5h 26m
United Airlines
Deal found 4/11![United Airlines logo]()
$415
Last-minute flights from Portland to LouisvilleDiscover last-minute flight deals from Portland to Louisville. Data last updated April 16, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Louisville. Data last updated April 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/56:00 am
PWM
- SDF
1 stop7h 31m
Delta
Sat 5/97:50 am
SDF
- PWM
1 stop4h 05m
Delta
Deal found 4/13![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 5/53:39 pm
PWM
- SDF
2 stops8h 17m
United Airlines
Sat 5/99:10 am
SDF
- PWM
1 stop5h 04m
United Airlines
Deal found 4/13![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/96:02 am
PWM
- SDF
1 stop7h 00m
Delta
Mon 5/115:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/92:05 pm
PWM
- SDF
1 stop5h 45m
Delta
Mon 5/185:30 pm
SDF
- PWM
1 stop16h 53m
Delta
Deal found 4/13![Delta logo]()
$361
This Delta deal was found by Cheapflights users on 4/13. 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.
Sat 5/912:50 pm
PWM
- SDF
1 stop4h 22m
Delta
Fri 5/155:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$372
This Delta deal was found by Cheapflights users on 4/13. 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.
Mon 5/116:02 am
PWM
- SDF
1 stop4h 38m
Delta
Mon 5/115:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$375
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:00 am
PWM
- SDF
1 stop6h 08m
Delta
Wed 5/136:10 am
SDF
- PWM
1 stop6h 28m
Delta
Deal found 4/13![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:39 pm
PWM
- SDF
2 stops8h 17m
United Airlines
Tue 5/195:50 am
SDF
- PWM
1 stop4h 28m
United Airlines
Deal found 4/14![United Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:00 am
PWM
- SDF
1 stop6h 08m
Delta
Mon 5/185:30 pm
SDF
- PWM
1 stop16h 53m
Delta
Deal found 4/13![Delta logo]()
$360
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 5/126:02 am
PWM
- SDF
1 stop4h 38m
Delta
Fri 5/155:30 pm
SDF
- PWM
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$371
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:01 pm
PWM
- SDF
1 stop6h 22m
American Airlines
Wed 5/206:00 am
SDF
- PWM
1 stop4h 07m
American Airlines
Deal found 4/13![American Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 4/13. 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 5/136:02 am
PWM
- SDF
1 stop4h 38m
Delta
Wed 5/206:10 am
SDF
- PWM
1 stop6h 28m
Delta
Deal found 4/13![Delta logo]()
$355
One-way flights from Portland to LouisvilleSearch for one-way flight options from Portland to Louisville. Find affordable one-way fares based on user searches. Data last updated April 16, 2026.
Search for one-way flight options from Portland to Louisville. Find affordable one-way fares based on user searches. Data last updated April 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Wed 9/166:31 pm
PWM
- SDF
1 stop25h 58m
Breeze Airways
Deal found 4/12![Breeze Airways logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Tue 5/123:16 pm
PWM
- SDF
2 stops17h 20m
Breeze Airways
Deal found 4/14![Breeze Airways logo]()
$166
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:50 pm
PWM
- SDF
1 stop5h 40m
United Airlines
Deal found 4/14![United Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:39 pm
PWM
- SDF
2 stops8h 20m
United Airlines
Deal found 4/11![United Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 5/146:01 pm
PWM
- SDF
1 stop6h 22m
American Airlines
Deal found 4/14![American Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Wed 9/166:31 pm
PWM
- SDF
2 stops22h 54m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$196
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:05 pm
PWM
- SDF
1 stop5h 11m
Delta
Deal found 4/15![Delta logo]()
$204
This Southwest deal was found by Cheapflights users on 4/15. 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.
Sat 8/15:35 am
PWM
- SDF
1 stop6h 35m
Southwest
Deal found 4/15![Southwest logo]()
$214
This Southwest deal was found by Cheapflights users on 4/13. 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.
Sun 7/265:30 am
PWM
- SDF
1 stop6h 55m
Southwest
Deal found 4/13![Southwest logo]()
$244
Find flight deals from Portland to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Louisville (SDF). 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 April 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $335 (Delta) |
One-way from | $165 (Kiwi.com) |
Popular in | August |
Cheapest in | May |
Average price | $469 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 April 16, 2026.
Use the filters below to find and compare flights from Portland to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Tue 6/2
6:10 am-12:40 pm
1 stop6h 30m
Louisville Intl
Wed 6/10
4:15 pm-10:55 pm
1 stop6h 40m
$335
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Wed 5/27
7:15 am-2:52 pm
1 stop7h 37m
Louisville Intl
Fri 5/29
5:43 pm-10:47 pm
1 stop5h 04m
$371
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Wed 5/13
4:50 pm-10:30 pm
1 stop5h 40m
Louisville Intl
Wed 5/20
5:50 am-1:27 pm
2 stops7h 37m
$379
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Wed 5/27
3:55 pm-10:55 pm
1 stop7h 00m
Louisville Intl
Fri 5/29
5:25 pm-11:25 pm
2 stops6h 00m
$386
Quickest round-trip
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Tue 5/26
4:51 pm-10:30 pm
1 stop5h 39m
Louisville Intl
Wed 5/27
9:00 am-2:26 pm
1 stop5h 26m
$415
Cheapest one-way
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Wed 9/16
6:31 pm-8:29 pm
1 stop25h 58m
$165
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Tue 5/5
1:18 pm-9:20 pm
1 stop8h 02m
$168
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Tue 5/12
4:50 pm-10:30 pm
1 stop5h 40m
$168
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Tue 5/5
3:39 pm-11:59 pm
2 stops8h 20m
$173
PortlandLouisville
PWM - SDF
PWMSDF
Portland
Thu 5/14
6:01 pm-12:23 am
1 stop6h 22m
$188
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Portland to Louisville
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 Portland to Louisville in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Louisville 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 Portland, Maine-Louisville 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 Portland to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Portland with our price prediction graph.
PWM-SDF
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 Portland to Louisville
What is the cheapest month to book a flight from Portland, Maine to Louisville?
Currently, May is the cheapest month in which you can book a flight from Portland, Maine to Louisville (average of $145). Flying from Portland, Maine to Louisville in March is currently the most expensive (average of $299). 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 Portland, Maine to Louisville?
Reviews of airlines servicing Louisville
Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated April 16, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Portland to Louisville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Portland to Louisville. 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 Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Corydon
Jeffersonville
Bardstown
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Alternative routes for Portland to Louisville
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Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Louisville by cabin class
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Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 16, 2026.
Portland and Louisville flights
Browse other Portland and Louisville flight options. Last updated on April 16, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on April 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Portland to Louisville
Discover the top 3 airlines that operate flights from Portland 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 April 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$374 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$406 | FlexibilityNo cancel fee | On-time69% |