$167+ Cheap flights from Portland to Louisville (PDX - 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SDF
Aug 23 — Aug 301
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 July 24, 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 July 24, 2026.
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/296:27 am
PDX
- SDF
1 stop9h 01m
American Airlines
Tue 9/17:03 am
SDF
- PDX
1 stop8h 45m
American Airlines
Deal found 7/24![American Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 8/292:27 pm
PDX
- SDF
1 stop6h 32m
United Airlines
Tue 9/11:50 pm
SDF
- PDX
2 stops10h 15m
United Airlines
Deal found 7/24![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 7/22. 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 8/2911:30 pm
PDX
- SDF
2 stops10h 20m
Southwest
Tue 9/14:00 pm
SDF
- PDX
2 stops9h 20m
Southwest
Deal found 7/22![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 7/20. 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 9/38:00 am
PDX
- SDF
2 stops12h 05m
Southwest
Mon 9/78:30 am
SDF
- PDX
1 stop9h 30m
Southwest
Deal found 7/20![Southwest logo]()
$344
This American Airlines deal was found by Cheapflights users on 7/24. 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 9/1611:08 pm
PDX
- SDF
1 stop7h 35m
American Airlines
Sat 9/196:00 am
SDF
- PDX
1 stop7h 59m
American Airlines
Deal found 7/24![American Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 7/23. 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 8/1810:45 pm
PDX
- SDF
1 stop10h 55m
Southwest
Thu 8/273:20 pm
SDF
- PDX
2 stops11h 20m
Southwest
Deal found 7/23![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/20. 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 9/168:25 am
PDX
- SDF
1 stop8h 44m
United Airlines
Sat 9/197:10 am
SDF
- PDX
1 stop7h 18m
United Airlines
Deal found 7/20![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 10/222:27 pm
PDX
- SDF
1 stop6h 32m
United Airlines
Sat 10/241:50 pm
SDF
- PDX
2 stops10h 20m
United Airlines
Deal found 7/20![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 7/20. 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 9/2111:30 pm
PDX
- SDF
2 stops9h 40m
Southwest
Thu 9/243:20 pm
SDF
- PDX
2 stops10h 45m
Southwest
Deal found 7/20![Southwest logo]()
$369
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 July 24, 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 July 24, 2026.
This Southwest deal was found by Cheapflights users on 7/23. 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 9/1411:30 pm
PDX
- SDF
2 stops9h 40m
Southwest
Sat 9/1912:05 pm
SDF
- PDX
2 stops11h 15m
Southwest
Deal found 7/23![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 7/23. 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 9/812:25 am
PDX
- SDF
1 stop8h 29m
Delta
Sun 9/136:00 am
SDF
- PDX
1 stop7h 38m
Delta
Deal found 7/23![Delta logo]()
$400
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 9/1711:02 pm
PDX
- SDF
1 stop7h 55m
United Airlines
Sun 9/205:15 am
SDF
- PDX
1 stop7h 14m
United Airlines
Deal found 7/19![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 7/24. 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 8/2911:30 pm
PDX
- SDF
2 stops10h 20m
Southwest
Tue 9/14:00 pm
SDF
- PDX
2 stops9h 20m
Southwest
Deal found 7/24![Southwest logo]()
$356
This Southwest deal was found by Cheapflights users on 7/21. 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 9/2111:30 pm
PDX
- SDF
2 stops9h 40m
Southwest
Thu 9/243:20 pm
SDF
- PDX
2 stops10h 45m
Southwest
Deal found 7/21![Southwest logo]()
$356
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/258:17 am
PDX
- SDF
1 stop9h 19m
United Airlines
Sat 8/298:00 am
SDF
- PDX
1 stop8h 14m
United Airlines
Deal found 7/23![United Airlines logo]()
$433
This Southwest deal was found by Cheapflights users on 7/19. 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.
Fri 9/46:15 am
PDX
- SDF
2 stops11h 15m
Southwest
Mon 9/77:10 pm
SDF
- PDX
1 stop6h 55m
Southwest
Deal found 7/19![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 7/19. 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 8/1811:30 pm
PDX
- SDF
2 stops9h 40m
Southwest
Mon 8/242:15 pm
SDF
- PDX
1 stop9h 30m
Southwest
Deal found 7/19![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 7/19. 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 10/2810:45 am
PDX
- SDF
2 stops9h 10m
Southwest
Sun 11/18:45 am
SDF
- PDX
1 stop7h 00m
Southwest
Deal found 7/19![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 7/20. 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 9/38:00 am
PDX
- SDF
2 stops12h 05m
Southwest
Mon 9/73:20 pm
SDF
- PDX
2 stops10h 45m
Southwest
Deal found 7/20![Southwest logo]()
$421
This Southwest deal was found by Cheapflights users on 7/23. 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 9/156:45 am
PDX
- SDF
2 stops10h 55m
Southwest
Sun 9/207:25 pm
SDF
- PDX
1 stop7h 10m
Southwest
Deal found 7/23![Southwest logo]()
$434
Last-minute flights from Portland to LouisvilleDiscover last-minute flight deals from Portland to Louisville. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Louisville. Data last updated July 24, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/22. 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 8/1312:40 pm
PDX
- SDF
1 stop7h 25m
Southwest
Tue 8/181:15 pm
SDF
- PDX
2 stops11h 40m
Southwest
Deal found 7/22![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 7/23. 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 8/1810:45 pm
PDX
- SDF
1 stop10h 55m
Southwest
Thu 8/273:20 pm
SDF
- PDX
2 stops11h 20m
Southwest
Deal found 7/23![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/19. 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 8/185:00 am
PDX
- SDF
1 stop6h 29m
United Airlines
Mon 8/243:25 pm
SDF
- PDX
1 stop8h 40m
United Airlines
Deal found 7/19![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/215:18 am
PDX
- SDF
1 stop9h 05m
American Airlines
Wed 8/266:30 pm
SDF
- PDX
1 stop8h 29m
American Airlines
Deal found 7/21![American Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 7/21. 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.
Fri 8/217:55 pm
PDX
- SDF
2 stops11h 15m
Southwest
Wed 8/265:30 am
SDF
- PDX
1 stop8h 10m
Southwest
Deal found 7/21![Southwest logo]()
$405
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Mon 8/245:00 am
PDX
- SDF
1 stop6h 29m
United Airlines
Fri 8/285:45 pm
SDF
- PDX
1 stop8h 07m
United Airlines
Deal found 7/24![United Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/296:27 am
PDX
- SDF
1 stop9h 01m
American Airlines
Tue 9/17:03 am
SDF
- PDX
1 stop8h 45m
American Airlines
Deal found 7/24![American Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 8/292:27 pm
PDX
- SDF
1 stop6h 32m
United Airlines
Tue 9/11:50 pm
SDF
- PDX
2 stops10h 15m
United Airlines
Deal found 7/24![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 7/22. 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 8/2911:30 pm
PDX
- SDF
2 stops10h 20m
Southwest
Tue 9/14:00 pm
SDF
- PDX
2 stops9h 20m
Southwest
Deal found 7/22![Southwest logo]()
$343
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 July 24, 2026.
Search for one-way flight options from Portland to Louisville. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:05 am
PDX
- SDF
1 stop6h 25m
Southwest
Deal found 7/24![Southwest logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/24. 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 11/45:00 am
PDX
- SDF
2 stops8h 57m
United Airlines
Deal found 7/24![United Airlines logo]()
$172
This Southwest deal was found by Cheapflights users on 7/23. 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 8/175:00 am
PDX
- SDF
2 stops15h 05m
Southwest
Deal found 7/23![Southwest logo]()
$178
This Delta deal was found by Cheapflights users on 7/20. 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 11/46:00 am
PDX
- SDF
1 stop9h 09m
Delta
Deal found 7/20![Delta logo]()
$180
This Southwest deal was found by Cheapflights users on 7/20. 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 8/316:15 am
PDX
- SDF
2 stops11h 15m
Southwest
Deal found 7/20![Southwest logo]()
$185
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Mon 8/172:27 pm
PDX
- SDF
1 stop6h 32m
United Airlines
Deal found 7/23![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 7/21. 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 8/135:00 am
PDX
- SDF
2 stops15h 05m
Southwest
Deal found 7/21![Southwest logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/312:20 pm
PDX
- SDF
3 stops52h 46m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 9/25:56 pm
PDX
- SDF
3 stops40h 59m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:49 pm
PDX
- SDF
2 stops41h 51m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$232
Find flight deals from Portland to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 July 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $333 (United Airlines) |
One-way from | $167 (Southwest) |
Popular in | December |
Cheapest in | October |
Average price | $496 |
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 July 24, 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
PDX - SDF
PDXSDF
Portland
Mon 9/14
11:30 pm-12:10 pm
2 stops9h 40m
Louisville Intl
Sat 9/19
12:05 pm-8:20 pm
2 stops11h 15m
$343
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Sat 8/29
11:30 pm-12:50 pm
2 stops10h 20m
Louisville Intl
Tue 9/1
4:00 pm-10:20 pm
2 stops9h 20m
$356
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Mon 9/21
11:30 pm-12:10 pm
2 stops9h 40m
Louisville Intl
Thu 9/24
3:20 pm-11:05 pm
2 stops10h 45m
$356
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Tue 9/8
12:25 am-11:54 am
1 stop8h 29m
Louisville Intl
Sun 9/13
6:00 am-10:38 am
1 stop7h 38m
$400
Quickest round-trip
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Thu 9/17
11:02 pm-9:57 am
1 stop7h 55m
Louisville Intl
Sun 9/20
5:15 am-9:29 am
1 stop7h 14m
$408
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Fri 9/4
6:15 am-8:30 pm
2 stops11h 15m
Louisville Intl
Mon 9/7
7:10 pm-11:05 pm
1 stop6h 55m
$413
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Tue 8/18
11:30 pm-12:10 pm
2 stops9h 40m
Louisville Intl
Mon 8/24
2:15 pm-8:45 pm
1 stop9h 30m
$413
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Wed 10/28
10:45 am-10:55 pm
2 stops9h 10m
Louisville Intl
Sun 11/1
8:45 am-12:45 pm
1 stop7h 00m
$413
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Thu 9/3
8:00 am-11:05 pm
2 stops12h 05m
Louisville Intl
Mon 9/7
3:20 pm-11:05 pm
2 stops10h 45m
$421
PortlandLouisville
PDX - SDF
PDXSDF
Portland
Tue 8/25
8:17 am-8:36 pm
1 stop9h 19m
Louisville Intl
Sat 8/29
8:00 am-1:14 pm
1 stop8h 14m
$433
Showing 1-10 of 21 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 July.
| 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-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-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-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.
PDX-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
Prices
More
How far ahead should I book a flight from Portland to Louisville?
The best time to book flights from Portland to Louisville is 21 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Portland to Louisville?
Currently, October is the cheapest month in which you can book a flight from Portland to Louisville (average of $341). Flying from Portland to Louisville in December is currently the most expensive (average of $586). 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 to Louisville?
Airfare is below average for this route at the moment.
Portland to Louisville flights typically cost between $414 and $684 in August.The cheapest round-trip price found within the last 5 days was $333 on American Airlines (Aug 29-Sep 1).
What’s the top layover airport for flights from Portland to Louisville?
Share of 1-stop round-trip flights from Portland to Louisville chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (MDW) – chosen by Cheapflights users on 60% of 1-stop itineraries from Portland to Louisville on Cheapflights.
What’s the cheapest layover airport for flights from Portland to Louisville?
Average round-trip fare for 1-stop flights from Portland to Louisville, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $416.
What’s the fastest layover option from Portland to Louisville?
Shortest average travel time for 1-stop one-way flights from Portland to Louisville, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 55m.
Which airport typically offers the quickest layover for flights from Portland to Louisville?
Average layover duration for 1-stop one-way flights from Portland to Louisville, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 39m.
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 July 24, 2026.
Read through reviews of airlines operating flights from Portland to Louisville, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Louisville flight routes
Other flight options
Other flights from Portland
Popular flights
Alternative routes for Portland to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
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
Find flights from Portland to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 July 24, 2026.
Portland and Louisville flights
Browse other Portland and Louisville flight options. Last updated on July 24, 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 July 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Portland to Louisville
Discover the top 4 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 July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$457 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$479 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$320 | Average$476 | FlexibilityNo cancel fee | On-time69% |