$163 Cheap United flights Portland (PDX) to Louisville (SDF)

View $163 flight on Thu, Sep 4, 2025Opens in a new window

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$163 Cheap United flights Portland (PDX) to Louisville (SDF)

Prices were available within the past 7 days and start at $163 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 28 - Fri, Oct 31
PDX
Portland
SDF
Louisville
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 28 from Portland to Louisville, returning Fri, Oct 31, priced at $288 found 3 days ago
United
Wed, Oct 15 - Mon, Oct 20
PDX
Portland
SDF
Louisville
$316 Roundtrip, found 9 hours ago
$316
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Oct 15 from Portland to Louisville, returning Mon, Oct 20, priced at $316 found 9 hours ago
United
Wed, Sep 3 - Wed, Sep 10
PDX
Portland
SDF
Louisville
$325 Roundtrip, found 2 hours ago
$325
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Sep 3 from Portland to Louisville, returning Wed, Sep 10, priced at $325 found 2 hours ago
United
Wed, Oct 15 - Mon, Oct 20
PDX
Portland
SDF
Louisville
$326 Roundtrip, found 9 hours ago
$326
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Oct 15 from Portland to Louisville, returning Mon, Oct 20, priced at $326 found 9 hours ago
United
Wed, Oct 29 - Sat, Nov 1
PDX
Portland
SDF
Louisville
$330 Roundtrip, found 3 hours ago
$330
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Oct 29 from Portland to Louisville, returning Sat, Nov 1, priced at $330 found 3 hours ago
United
Thu, Sep 11 - Sat, Sep 13
PDX
Portland
SDF
Louisville
$336 Roundtrip, found 5 hours ago
$336
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Sep 11 from Portland to Louisville, returning Sat, Sep 13, priced at $336 found 5 hours ago
Flights from Portland (PDX) to Louisville (SDF)
Origin airport
Portland Intl.
Destination airport
Louisville Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
1944 mi

Frequently asked questions

How much is a United Airlines flight from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF)?
Make use of the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines return flights from $288 from PDX to SDF. Affordable one-way options from $163 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PDX to SDF with United Airlines?
January is one of the least expensive months to jet away to Louisville with United Airlines. You could also find great prices on one-way and round-trip tickets in December.
What is the cheapest time to book flights from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF) with United Airlines?
To find cheap United Airlines fares from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall cost. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF)?
Enter your dates, press search and select "Nonstop" on Expedia to browse any direct flights from PDX to SDF with United Airlines or another airline.
What is the earliest United Airlines flight from PDX to SDF?
Find United Airlines's earliest flights from PDX to SDF by using our "Early Morning" and "Morning" filters. Not only will you arrive sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Louisville?
United Airlines flights from Portland Intl. Airport (PDX) to Louisville touch down at Louisville Intl. Airport (SDF). This is the main gateway here.
Why fly with United Airlines from PDX to SDF?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to jet off from PDX to SDF with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF)?
Changes are usually free within 24 hours of booking, but your airline may add a charge after that. For more details about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to make changes without extra charges, apply the "Changes included" and "No cancel fee" filters when planning your next trip.

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