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$91+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SDF
трав. 6 — трав. 131
вт 5/6
вт 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Louisville Intl are usually found in August or January, 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 травень 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$271
(Mytrip)

One-way from

$91
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$546
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 Portland to Louisville Intl
Search Deals
One-way flight from Portland to Louisville Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($46 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 May 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 травень 1, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн 6/24:35 pmPDX - SDF
2 stops16h 28mMultiple Airlines
пт 6/612:07 pmSDF - PDX
2 stops27h 35mMultiple Airlines
Deal found 4/30$271
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ср 6/48:15 amPDX - SDF
1 stop8h 31mUnited Airlines
сб 6/76:00 pmSDF - PDX
1 stop7h 26mUnited Airlines
Deal found 4/29$314
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.
пт 8/112:59 amPDX - SDF
1 stop8h 09mAmerican Airlines
ср 8/610:54 amSDF - PDX
1 stop8h 53mAmerican Airlines
Deal found 4/30$316
This Sun Country Air 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
чт 7/311:59 pmPDX - SDF
1 stop14h 50mSun Country Air
пн 7/72:10 pmSDF - PDX
1 stop11h 36mSun Country Air
Deal found 4/30$345
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн 6/21:37 pmPDX - SDF
3 stops19h 26mSpirit Airlines
пт 6/62:07 pmSDF - PDX
3 stops29h 38mSpirit Airlines
Deal found 4/30$353
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.
чт 7/33:55 pmPDX - SDF
1 stop6h 50mSouthwest
пн 7/73:55 pmSDF - PDX
2 stops11h 10mSouthwest
Deal found 4/30$377
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.
пт 8/112:46 amPDX - SDF
1 stop8h 15mDelta
ср 8/612:42 pmSDF - PDX
2 stops11h 19mDelta
Deal found 4/30$444
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
чт 10/234:00 pmPDX - SDF
2 stops15h 31mAlaska Airlines
нд 10/2610:57 amSDF - PDX
2 stops15h 56mAlaska Airlines
Deal found 4/30$667

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 травень 1, 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

пн 6/2

4:35 pm-12:03 pm

2 stops16h 28m

Louisville Intl

пт 6/6

12:07 pm-12:42 pm

2 stops27h 35m

$271

PortlandLouisville

PDX - SDF

PDXSDF

Portland

ср 6/4

8:15 am-7:46 pm

1 stop8h 31m

Louisville Intl

сб 6/7

6:00 pm-10:26 pm

1 stop7h 26m

$314

PortlandLouisville

PDX - SDF

PDXSDF

Portland

пт 8/1

12:59 am-12:08 pm

1 stop8h 09m

Louisville Intl

ср 8/6

10:54 am-4:47 pm

1 stop8h 53m

$316

PortlandLouisville

PDX - SDF

PDXSDF

Portland

чт 7/3

11:59 pm-5:49 pm

1 stop14h 50m

Louisville Intl

пн 7/7

2:10 pm-10:46 pm

1 stop11h 36m

$345

PortlandLouisville

PDX - SDF

PDXSDF

Portland

пн 6/2

1:37 pm-12:03 pm

3 stops19h 26m

Louisville Intl

пт 6/6

2:07 pm-4:45 pm

3 stops29h 38m

$353

PortlandLouisville

PDX - SDF

PDXSDF

Portland

чт 7/3

3:55 pm-1:45 am

1 stop6h 50m

Louisville Intl

пн 7/7

3:55 pm-12:05 am

2 stops11h 10m

$377

PortlandLouisville

PDX - SDF

PDXSDF

Portland

пт 8/1

12:46 am-12:01 pm

1 stop8h 15m

Louisville Intl

ср 8/6

12:42 pm-9:01 pm

2 stops11h 19m

$444

PortlandLouisville

PDX - SDF

PDXSDF

Portland

чт 10/23

4:00 pm-10:31 am

2 stops15h 31m

Louisville Intl

нд 10/26

10:57 am-11:53 pm

2 stops15h 56m

$667

PortlandLouisville

PDX - SDF

PDXSDF

Portland

чт 5/29

5:40 pm-2:56 pm

2 stops18h 16m

$91

PortlandLouisville

PDX - SDF

PDXSDF

Portland

чт 5/29

10:41 am-2:56 pm

3 stops25h 15m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 16 results
1
2

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 eDreams the most. eDreams 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.
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 April 25, 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 травень 1, 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.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 травень 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Portland to Louisville to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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, United Airlines ($314), American Airlines ($316), and Sun Country Air ($345) offers the cheapest pricing from Portland to Louisville. You may be able to fly from Portland to Louisville for 37% 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 Spirit Airlines, with whom users have recently found tickets for as low as $91. However, be on the lookout for offers from United Airlines and Sun Country Air, 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
Jeffersonville
Corydon
Elizabethtown
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 травень 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$154Average$284FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$320Average$472FlexibilityNo cancel feeOn-time71%
DeltaCheapest$326Average$487FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$365Average$544FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$386Average$467FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$485Average$676FlexibilityNo cancel feeOn-time75%

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