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Cheap flights from Portland to Louisville from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Louisville departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Portland to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
11:15 am - 10:30 pm
PDX
-
SDF
8h 15m
1 stop
Southwest Logo
10:45 am - 5:45 pm
SDF
-
PDX
10h 00m
1 stop
$327Southwest
Wed, May 20 - Sat, May 30
American Airlines Logo
11:56 am - 11:11 pm
PDX
-
SDF
8h 15m
1 stop
American Airlines Logo
7:45 pm - 12:50 am
SDF
-
PDX
8h 05m
1 stop
$329American Airlines
Tue, May 19 - Tue, May 26
American Airlines Logo
11:47 pm - 10:46 am
PDX
-
SDF
7h 59m
1 stop
American Airlines Logo
7:01 pm - 11:48 pm
SDF
-
PDX
7h 47m
1 stop
$333American Airlines
Mon, May 4 - Mon, May 11
Southwest Logo
5:15 am - 5:25 pm
PDX
-
SDF
9h 10m
2 stops
Southwest Logo
3:35 pm - 7:00 pm
SDF
-
PDX
6h 25m
1 stop
$338Southwest
Sat, Jun 6 - Mon, Jun 8
Southwest Logo
11:55 pm - 12:40 pm
PDX
-
SDF
9h 45m
2 stops
Southwest Logo
12:20 pm - 9:40 pm
SDF
-
PDX
12h 20m
1 stop
$344Southwest
Mon, May 4 - Mon, May 11
American Airlines Logo
11:40 pm - 10:15 am
PDX
-
SDF
7h 35m
1 stop
American Airlines Logo
5:41 pm - 10:50 pm
SDF
-
PDX
8h 09m
1 stop
$366American Airlines
Thu, May 14 - Mon, May 18
Southwest Logo
5:40 am - 3:05 pm
PDX
-
SDF
6h 25m
1 stop
Southwest Logo
1:35 pm - 9:00 pm
SDF
-
PDX
10h 25m
2 stops
$371Southwest
Tue, May 19 - Tue, May 26
American Airlines Logo
10:59 pm - 10:17 am
PDX
-
SDF
8h 18m
1 stop
American Airlines Logo
3:52 pm - 10:53 pm
SDF
-
PDX
10h 01m
1 stop
$375American Airlines
Thu, May 21 - Sat, May 30
Southwest Logo
8:50 am - 9:05 pm
PDX
-
SDF
9h 15m
2 stops
Southwest Logo
1:35 pm - 9:00 pm
SDF
-
PDX
10h 25m
2 stops
$376Southwest
Tue, May 19 - Tue, May 26
Southwest Logo
11:55 pm - 12:40 pm
PDX
-
SDF
9h 45m
2 stops
Southwest Logo
3:40 pm - 10:40 pm
SDF
-
PDX
10h 00m
2 stops
$388Southwest
Mon, May 4 - Mon, May 11

Southwest flights from Portland to Louisville

Our best Southwest deals on Portland to Louisville flight tickets
Southwest
May 20
PDX11:15 amPortland
8h 15m
1 stop
SDF10:30 pmLouisville Intl
May 30
SDF10:45 amLouisville Intl
10h 00m
1 stop
PDX5:45 pmPortland
$327
Southwest
Jun 6
PDX5:15 amPortland
9h 10m
2 stops
SDF5:25 pmLouisville Intl
Jun 8
SDF3:35 pmLouisville Intl
6h 25m
1 stop
PDX7:00 pmPortland
$338
Southwest
May 4
PDX11:55 pmPortland
9h 45m
2 stops
SDF12:40 pmLouisville Intl
May 11
SDF12:20 pmLouisville Intl
12h 20m
1 stop
PDX9:40 pmPortland
$344

Delta flights from Portland to Louisville

Our best Delta deals on Portland to Louisville flight tickets
Delta
May 28
PDX7:00 amPortland
9h 03m
1 stop
SDF7:03 pmLouisville Intl
May 31
SDF5:52 pmLouisville Intl
7h 10m
1 stop
PDX10:02 pmPortland
$395
Delta
May 28
PDX11:58 amPortland
8h 54m
1 stop
SDF11:52 pmLouisville Intl
May 31
SDF5:52 pmLouisville Intl
7h 10m
1 stop
PDX10:02 pmPortland
$405
Delta
Jun 9
PDX2:10 pmPortland
7h 22m
1 stop
SDF12:32 amLouisville Intl
Jun 14
SDF6:38 pmLouisville Intl
7h 53m
1 stop
PDX11:31 pmPortland
$409

momondo 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, momondo users made 832,500 searches. Data last updated April 9, 2026.
Use the filters below to find and compare flights from Portland to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 5/20

11:15 am-10:30 pm

1 stop8h 15m

Louisville Intl

Sat 5/30

10:45 am-5:45 pm

1 stop10h 00m

$327

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 5/19

11:56 am-11:11 pm

1 stop8h 15m

Louisville Intl

Tue 5/26

7:45 pm-12:50 am

1 stop8h 05m

$329

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 5/4

11:47 pm-10:46 am

1 stop7h 59m

Louisville Intl

Mon 5/11

7:01 pm-11:48 pm

1 stop7h 47m

$333
Quickest round-trip

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Sat 6/6

5:15 am-5:25 pm

2 stops9h 10m

Louisville Intl

Mon 6/8

3:35 pm-7:00 pm

1 stop6h 25m

$338

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 5/4

11:55 pm-12:40 pm

2 stops9h 45m

Louisville Intl

Mon 5/11

12:20 pm-9:40 pm

1 stop12h 20m

$344

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 5/14

11:40 pm-10:15 am

1 stop7h 35m

Louisville Intl

Mon 5/18

5:41 pm-10:50 pm

1 stop8h 09m

$366

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 5/19

5:40 am-3:05 pm

1 stop6h 25m

Louisville Intl

Tue 5/26

1:35 pm-9:00 pm

2 stops10h 25m

$371

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 5/21

10:59 pm-10:17 am

1 stop8h 18m

Louisville Intl

Sat 5/30

3:52 pm-10:53 pm

1 stop10h 01m

$375

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 5/19

8:50 am-9:05 pm

2 stops9h 15m

Louisville Intl

Tue 5/26

1:35 pm-9:00 pm

2 stops10h 25m

$376

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 5/4

11:55 pm-12:40 pm

2 stops9h 45m

Louisville Intl

Mon 5/11

3:40 pm-10:40 pm

2 stops10h 00m

$388

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Louisville from

How to get the cheapest flight ticket from Portland to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of October, then departing from Portland during the month September is also very affordable. Most momondo users find prices during this month for around $347.

How far in advance should I book a flight to Louisville?

You are more likely to see cheaper flights to Louisville from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $458 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Portland for as low as $385 on momondo.

How have Portland to Louisville flight prices changed over time?

As of April 2026, prices for Portland to Louisville flights are approximately 109% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Louisville (PDX to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Louisville

Fastest flight time

6h 30m

Direct flights

None
The fastest flight from Portland to Louisville takes 6h 30m
There are no direct flights from Portland to Louisville. There are no popular flight routes from Portland to Louisville.
Search flight deals

Frequently asked questions about flying from Portland to Louisville

  • How far is Portland to Louisville Intl by plane?

    The distance between Portland and Louisville Intl is about 1944.5 mi. 6h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Louisville Intl Airport?

    Prices for flights from Portland Airport to Louisville Intl Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Portland Airport to Louisville Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland to Louisville?

Best airlines flying from Portland to Louisville

Compare and see reviews for airlines that fly from Portland to Louisville with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $262Free CancellationRating
8.0
4,338 reviews
Search Southwest flights
American AirlinesPriceFrom $280Free CancellationRating
7.1
11,560 reviews
Search American Airlines flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,554 reviews
Search United Airlines flights
DeltaPriceFrom $300Free CancellationRating
7.9
8,392 reviews
Search Delta flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Jeffersonville
Bardstown
New Albany
Shepherdsville
Corydon
Brandenburg
Elizabeth
Charlestown
Springfield
Georgetown

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Louisville?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Louisville. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Louisville with flexible booking policies on momondo?

Flights from Portland to Louisville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Louisville?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisville from Portland.

I’m not ready to book a flight from Portland to Louisville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Louisville, momondo offers a useful price alert feature which will track prices for flights to Louisville from Portland and alert you when they change.

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