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$80+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SDF
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Louisville Intl are usually found in August or April, booked 51 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap 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 11, 2025.

Round-trip from

$159
(Southwest)

One-way from

$80
(Southwest)

Popular in

March

Cheapest in

August

Average price

$468
From Portland to Louisville Intl
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One-way flight from Portland to Louisville Intl
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Highest demand for flights based on searches. 10% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Louisville

Cheapest flights from Portland to Louisville
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 11, 2025.

This Southwest deal was found by Cheapflights users on 7/9. 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 10/226:00 amPDX - SDF
1 stop8h 30mSouthwest
Sat 10/254:50 pmSDF - PDX
1 stop7h 50mSouthwest
Deal found 7/9$159
This Delta deal was found by Cheapflights users on 7/9. 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 9/1910:50 pmPDX - SDF
1 stop7h 56mDelta
Sat 9/203:40 pmSDF - PDX
1 stop7h 00mDelta
Deal found 7/9$185
This American Airlines deal was found by Cheapflights users on 7/9. 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 8/77:40 amPDX - SDF
1 stop9h 19mAmerican Airlines
Wed 8/132:45 pmSDF - PDX
1 stop11h 35mAmerican Airlines
Deal found 7/9$197
This FlightHub deal was found by Cheapflights users on 7/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:59 pmPDX - SDF
1 stop22h 11mSpirit Airlines
Mon 9/2210:05 pmSDF - PDX
1 stop16h 07mSpirit Airlines
Deal found 7/10$230
This United Airlines deal was found by Cheapflights users on 7/9. 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 8/2110:55 amPDX - SDF
1 stop8h 35mUnited Airlines
Thu 8/287:00 amSDF - PDX
1 stop7h 49mUnited Airlines
Deal found 7/9$233
This Mytrip deal was found by Cheapflights users on 7/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/44:37 pmPDX - SDF
2 stops23h 31mMultiple Airlines
Fri 8/86:26 pmSDF - PDX
2 stops22h 49mMultiple Airlines
Deal found 7/10$285

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 11, 2025.
Use the filters below to find and compare flights from Portland to Louisville that are best for you.

Fly from

Portland

Fly to

Louisville

Route

Depart

Return

Price

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 10/22

6:00 am-5:30 pm

1 stop8h 30m

Louisville Intl

Sat 10/25

4:50 pm-9:40 pm

1 stop7h 50m

$159

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Fri 9/19

10:50 pm-9:46 am

1 stop7h 56m

Louisville Intl

Sat 9/20

3:40 pm-7:40 pm

1 stop7h 00m

$185

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 8/7

7:40 am-7:59 pm

1 stop9h 19m

Louisville Intl

Wed 8/13

2:45 pm-11:20 pm

1 stop11h 35m

$197

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 9/17

7:59 pm-9:10 pm

1 stop22h 11m

Louisville Intl

Mon 9/22

10:05 pm-11:12 am

1 stop16h 07m

$230

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 8/21

10:55 am-10:30 pm

1 stop8h 35m

Louisville Intl

Thu 8/28

7:00 am-11:49 am

1 stop7h 49m

$233

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 8/4

4:37 pm-7:08 pm

2 stops23h 31m

Louisville Intl

Fri 8/8

6:26 pm-2:15 pm

2 stops22h 49m

$285

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 8/26

7:20 am-5:15 pm

1 stop6h 55m

$80

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 8/4

12:40 am-12:01 pm

1 stop8h 21m

$89

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 7/29

3:10 pm-3:36 pm

2 stops21h 26m

$94

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 8/13

5:34 am-4:21 pm

1 stop7h 47m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 13 results
1
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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.
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

How far ahead should I book a flight from Portland to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Louisville. Price data was last updated on June 27, 2025.

The best time to book flights from Portland to Louisville is 51 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, January is the cheapest month in which you can book a flight from Portland to Louisville (average of $299). Flying from Portland to Louisville in April is currently the most expensive (average of $369). 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 PDX to SDF?

Find hourly flight availability from Portland to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2025.

It’s typically best to fly out from Portland to Louisville in the afternoon. Doing so could potentially save you 55% on the flight price compared to flying in the morning, which is usually more expensive.

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 11, 2025.
Read through reviews of airlines operating flights from Portland to Louisville, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,951 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,846 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Allegiant Air
7.2
Good
704 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • What are the cheapest airlines flying from Portland to Louisville round-trip?

    According to our current data, Southwest ($159), Delta ($185), and American Airlines ($197) offers the cheapest pricing from Portland to Louisville. You may be able to fly from Portland to Louisville for 67% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Portland to Louisville one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $80. However, be on the lookout for offers from Delta and Spirit Airlines, as they are both options that can get you from Portland to Louisville for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Portland to Louisville (average of $299). Flying from Portland to Louisville in April is currently the most expensive (average of $369). 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 Portland?

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

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Top 6 airlines flying from Portland to Louisville

Discover the top 6 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$202Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$300Average$455FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$307Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$520FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$361Average$457FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$492Average$676FlexibilityNo cancel feeOn-time75%

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