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$137+ Cheap flights from Louisville to Portland (SDF - PDX)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — PDX
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheap flight deals from Louisville to Portland

Cheapest flights from Louisville to Portland
Explore the most affordable flight options available from Louisville to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.

This United Airlines deal was found by Cheapflights users on 3/24. 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 4/205:48 pm
SDF
-
PDX
1 stop7h 46m
United Airlines
Tue 5/511:55 pm
PDX
-
SDF
1 stop6h 30m
United Airlines
Deal found 3/24$300
This American Airlines deal was found by Cheapflights users on 3/24. 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 5/137:01 pm
SDF
-
PDX
1 stop7h 55m
American Airlines
Wed 5/201:23 pm
PDX
-
SDF
1 stop8h 00m
American Airlines
Deal found 3/24$303
This Southwest deal was found by Cheapflights users on 3/24. 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.
Mon 4/278:10 pm
SDF
-
PDX
1 stop7h 00m
Southwest
Mon 5/411:55 pm
PDX
-
SDF
1 stop6h 55m
Southwest
Deal found 3/24$327
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 5/15:41 pm
SDF
-
PDX
1 stop9h 13m
American Airlines
Tue 5/56:00 am
PDX
-
SDF
1 stop7h 47m
American Airlines
Deal found 3/24$328
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:45 pm
SDF
-
PDX
1 stop8h 05m
American Airlines
Mon 6/110:59 pm
PDX
-
SDF
1 stop8h 18m
American Airlines
Deal found 3/20$333
This American Airlines deal was found by Cheapflights users on 3/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:41 pm
SDF
-
PDX
1 stop8h 09m
American Airlines
Fri 5/1511:47 pm
PDX
-
SDF
1 stop7h 59m
American Airlines
Deal found 3/23$355
This Southwest deal was found by Cheapflights users on 3/20. 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 6/18:10 pm
SDF
-
PDX
1 stop7h 00m
Southwest
Thu 6/411:50 am
PDX
-
SDF
1 stop7h 05m
Southwest
Deal found 3/20$373
This United Airlines deal was found by Cheapflights users on 3/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:20 am
SDF
-
PDX
1 stop7h 24m
United Airlines
Wed 4/2211:59 pm
PDX
-
SDF
1 stop6h 11m
United Airlines
Deal found 3/22$387
This Southwest deal was found by Cheapflights users on 3/22. 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 4/181:45 pm
SDF
-
PDX
1 stop8h 00m
Southwest
Wed 4/226:30 am
PDX
-
SDF
2 stops11h 05m
Southwest
Deal found 3/22$392

Find flight deals from Louisville to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Portland (PDX). 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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$300
(United Airlines)

One-way from

$137
(Southwest)

Popular in

November

Cheapest in

February

Average price

$486
Provider with most accurate pricing for Louisville Intl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Portland flights.
Search Deals
From Louisville Intl to Portland
Search Deals
One-way flight from Louisville Intl to Portland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Portland 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 March 24, 2026.
Use the filters below to find and compare flights from Louisville to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 5/19

9:10 am-3:13 pm

1 stop9h 03m

Portland

Sun 5/24

11:30 pm-10:23 am

1 stop7h 53m

$389

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 4/27

8:10 pm-12:10 am

1 stop7h 00m

Portland

Mon 5/4

11:55 pm-12:40 pm

2 stops9h 45m

$397

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 5/19

7:15 pm-11:10 pm

1 stop6h 55m

Portland

Sun 5/24

12:00 pm-12:35 am

2 stops9h 35m

$400

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Wed 5/13

3:30 pm-10:59 pm

1 stop10h 29m

Portland

Sat 5/16

2:41 pm-11:56 pm

1 stop6h 15m

$400

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 4/14

2:20 pm-9:59 pm

1 stop10h 39m

Portland

Wed 4/15

11:59 pm-9:10 am

1 stop6h 11m

$421

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 5/28

5:20 am-9:39 am

1 stop7h 19m

Portland

Sat 5/30

11:05 am-11:59 pm

2 stops9h 54m

$432
Quickest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Wed 4/22

7:15 pm-11:10 pm

1 stop6h 55m

Portland

Wed 4/29

11:15 am-10:30 pm

1 stop8h 15m

$442

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 8/24

9:00 am-4:35 pm

2 stops10h 35m

Portland

Tue 8/25

11:30 pm-12:40 pm

2 stops10h 10m

$449
Cheapest one-way
Quickest one-way

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 4/30

8:10 pm-12:10 am

1 stop7h 00m

$178

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Fri 5/1

3:40 pm-10:40 pm

2 stops10h 00m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville to Portland

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 Louisville to Portland in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Louisville-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Portland 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 Louisville-Portland 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 Louisville to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Louisville 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 Louisville to Portland

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Portland. Price data was last updated on March 13, 2026.

The best time to book flights from Louisville to Portland is 40 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 Louisville to Portland?

Currently, August is the cheapest month in which you can book a flight from Louisville to Portland (average of $96). Flying from Louisville to Portland in January is currently the most expensive (average of $257). 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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated March 24, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Louisville to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,329 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,320 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,469 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,492 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Louisville to Portland?

    United Airlines and Southwest can get you from Louisville to Portland in just under 7h. Your travel time can differ by up to 2h 03m. Louisville and Portland are separated by a distance of 1944 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Delta ($149), United Airlines ($253), and American Airlines ($296) offers the cheapest pricing from Louisville to Portland. Delta is currently priced 66% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $142. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Louisville to Portland for a low price.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to Portland (average of $96). Flying from Louisville to Portland in January is currently the most expensive (average of $257). 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
Beaverton
Seaside
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Pacific City

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.

Top 4 airlines flying from Louisville to Portland

Discover the top 4 airlines that operate flights from Louisville to Portland. 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$434FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$253Average$493FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$296Average$440FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$298Average$444FlexibilityNo cancel feeOn-time63%

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