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$111+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SDF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$245
(FlightHub)

One-way from

$111
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$466
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 ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. 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.
Thu 9/112:35 pmPDX - SDF
1 stop23h 15mSpirit Airlines
Mon 9/155:55 pmSDF - PDX
1 stop22h 35mSpirit Airlines
Deal found 6/10$245
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/79:30 pmPDX - SDF
1 stop8h 20mDelta
Wed 8/137:34 pmSDF - PDX
1 stop6h 57mDelta
Deal found 6/12$255
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:40 amPDX - SDF
2 stops9h 50mSouthwest
Tue 10/216:25 amSDF - PDX
1 stop6h 40mSouthwest
Deal found 6/10$298
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Thu 6/2611:59 pmPDX - SDF
1 stop6h 14mMultiple Airlines
Mon 6/304:17 pmSDF - PDX
2 stops22h 00mMultiple Airlines
Deal found 6/10$316
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 10/218:01 amPDX - SDF
1 stop8h 41mAmerican Airlines
Fri 10/246:54 pmSDF - PDX
1 stop7h 10mAmerican Airlines
Deal found 6/9$324
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1711:55 pmPDX - SDF
1 stop10h 11mSun Country Air
Mon 7/2111:52 amSDF - PDX
1 stop13h 54mSun Country Air
Deal found 6/9$325
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/711:59 pmPDX - SDF
1 stop6h 58mUnited Airlines
Mon 8/116:08 pmSDF - PDX
1 stop7h 21mUnited Airlines
Deal found 6/11$345
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:00 amPDX - SDF
2 stops13h 10mAlaska Airlines
Sat 8/92:18 pmSDF - PDX
1 stop7h 29mAlaska Airlines
Deal found 6/12$477

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 June 12, 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

Thu 9/11

2:35 pm-4:50 pm

1 stop23h 15m

Louisville Intl

Sun 9/14

3:43 pm-1:30 pm

1 stop24h 47m

$245

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 8/7

9:30 pm-8:50 am

1 stop8h 20m

Louisville Intl

Wed 8/13

7:34 pm-11:31 pm

1 stop6h 57m

$255

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 10/15

10:30 am-12:30 am

1 stop11h 00m

Louisville Intl

Tue 10/21

6:55 pm-10:50 pm

1 stop6h 55m

$298

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 6/26

11:59 pm-9:13 am

1 stop6h 14m

Louisville Intl

Mon 6/30

4:17 pm-11:17 am

2 stops22h 00m

$316

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 10/21

8:01 am-7:42 pm

1 stop8h 41m

Louisville Intl

Fri 10/24

6:54 pm-11:04 pm

1 stop7h 10m

$324

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 7/17

11:55 pm-1:06 pm

1 stop10h 11m

Louisville Intl

Mon 7/21

11:52 am-10:46 pm

1 stop13h 54m

$325

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 8/7

11:59 pm-9:57 am

1 stop6h 58m

Louisville Intl

Tue 8/12

2:10 pm-6:45 pm

1 stop7h 35m

$345

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 8/5

7:00 am-11:10 pm

2 stops13h 10m

Louisville Intl

Sat 8/9

2:18 pm-6:47 pm

1 stop7h 29m

$477

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 7/9

10:23 am-3:36 pm

2 stops26h 13m

$111

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 10/21

12:40 am-12:03 pm

1 stop8h 23m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 16 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 9, 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 June 12, 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 June 12, 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
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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, Spirit Airlines ($245), Delta ($255), and Southwest ($298) offers the cheapest pricing from Portland to Louisville. You may be able to fly from Portland to Louisville for 49% 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 $111. However, be on the lookout for offers from Delta and United 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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Alternative routes for Portland to Louisville

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$202Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$300Average$459FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$323Average$454FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$516FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$369Average$458FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$485Average$676FlexibilityNo cancel feeOn-time75%

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