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Cheap flights from Portland to Louisville from $138

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 11/4. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:50 am - 10:31 pm
PDX
-
SDF
8h 41m
1 stop
United Airlines Logo
5:15 am - 9:29 am
SDF
-
PDX
7h 14m
1 stop
$275United Airlines
Sat, Aug 29 - Mon, Sep 7
United Airlines Logo
11:15 am - 11:59 pm
PDX
-
SDF
9h 44m
2 stops
United Airlines Logo
7:10 am - 11:28 am
SDF
-
PDX
7h 18m
1 stop
$280United Airlines
Sat, Aug 29 - Mon, Aug 31
Southwest Logo
11:30 pm - 10:25 am
PDX
-
SDF
7h 55m
1 stop
Southwest Logo
12:10 pm - 7:50 pm
SDF
-
PDX
10h 40m
2 stops
$290Southwest
Thu, Sep 24 - Tue, Sep 29
Delta Logo
12:35 am - 11:55 am
PDX
-
SDF
8h 20m
1 stop
Delta Logo
6:00 am - 10:27 am
SDF
-
PDX
7h 27m
1 stop
$293Delta
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
5:00 am - 11:05 pm
PDX
-
SDF
15h 05m
2 stops
Southwest Logo
2:55 pm - 6:25 pm
SDF
-
PDX
6h 30m
1 stop
$296Southwest
Mon, Aug 10 - Sat, Aug 15
Southwest Logo
11:30 pm - 11:20 am
PDX
-
SDF
8h 50m
1 stop
Southwest Logo
3:20 pm - 11:05 pm
SDF
-
PDX
10h 45m
2 stops
$299Southwest
Tue, Sep 22 - Thu, Sep 24
Southwest Logo
9:15 pm - 10:10 am
PDX
-
SDF
9h 55m
2 stops
Southwest Logo
7:10 pm - 11:35 pm
SDF
-
PDX
7h 25m
1 stop
$300Southwest
Thu, Oct 15 - Tue, Oct 20
Delta Logo
11:50 am - 11:56 pm
PDX
-
SDF
9h 06m
1 stop
Delta Logo
6:50 am - 1:38 pm
SDF
-
PDX
9h 48m
1 stop
$304Delta
Wed, Sep 2 - Sun, Sep 6
Southwest Logo
9:15 pm - 10:10 am
PDX
-
SDF
9h 55m
2 stops
Southwest Logo
7:10 am - 1:50 pm
SDF
-
PDX
9h 40m
2 stops
$305Southwest
Thu, Oct 15 - Tue, Oct 20
United Airlines Logo
2:27 pm - 11:59 pm
PDX
-
SDF
6h 32m
1 stop
United Airlines Logo
7:10 am - 1:14 pm
SDF
-
PDX
9h 04m
2 stops
$309United Airlines
Wed, Sep 2 - Sun, Sep 6

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Delta flights from Portland to Louisville

Our best Delta deals on Portland to Louisville flight tickets
Delta
Aug 4
PDX12:35 amPortland
8h 20m
1 stop
SDF11:55 amLouisville Intl
Aug 11
SDF6:00 amLouisville Intl
7h 27m
1 stop
PDX10:27 amPortland
$293
Delta
Sep 2
PDX11:50 amPortland
9h 06m
1 stop
SDF11:56 pmLouisville Intl
Sep 6
SDF6:50 amLouisville Intl
9h 48m
1 stop
PDX1:38 pmPortland
$304
Delta
Sep 8
PDX12:25 amPortland
8h 29m
1 stop
SDF11:54 amLouisville Intl
Sep 13
SDF6:00 amLouisville Intl
7h 38m
1 stop
PDX10:38 amPortland
$366

Southwest flights from Portland to Louisville

Our best Southwest deals on Portland to Louisville flight tickets
Southwest
Sep 24
PDX11:30 pmPortland
7h 55m
1 stop
SDF10:25 amLouisville Intl
Sep 29
SDF12:10 pmLouisville Intl
10h 40m
2 stops
PDX7:50 pmPortland
$290
Southwest
Aug 10
PDX5:00 amPortland
15h 05m
2 stops
SDF11:05 pmLouisville Intl
Aug 15
SDF2:55 pmLouisville Intl
6h 30m
1 stop
PDX6:25 pmPortland
$296
Southwest
Sep 22
PDX11:30 pmPortland
8h 50m
1 stop
SDF11:20 amLouisville Intl
Sep 24
SDF3:20 pmLouisville Intl
10h 45m
2 stops
PDX11:05 pmPortland
$299

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 July 10, 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

Sat 8/29

10:50 am-10:31 pm

1 stop8h 41m

Louisville Intl

Mon 9/7

5:15 am-9:29 am

1 stop7h 14m

$275

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Sat 8/29

11:15 am-11:59 pm

2 stops9h 44m

Louisville Intl

Mon 8/31

7:10 am-11:28 am

1 stop7h 18m

$280

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 9/24

11:30 pm-10:25 am

1 stop7h 55m

Louisville Intl

Tue 9/29

12:10 pm-7:50 pm

2 stops10h 40m

$290

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 8/4

12:35 am-11:55 am

1 stop8h 20m

Louisville Intl

Tue 8/11

6:00 am-10:27 am

1 stop7h 27m

$293

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 8/10

5:00 am-11:05 pm

2 stops15h 05m

Louisville Intl

Sat 8/15

2:55 pm-6:25 pm

1 stop6h 30m

$296

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 9/22

11:30 pm-11:20 am

1 stop8h 50m

Louisville Intl

Thu 9/24

3:20 pm-11:05 pm

2 stops10h 45m

$299

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 10/15

9:15 pm-10:10 am

2 stops9h 55m

Louisville Intl

Tue 10/20

7:10 pm-11:35 pm

1 stop7h 25m

$300

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 9/2

11:50 am-11:56 pm

1 stop9h 06m

Louisville Intl

Sun 9/6

6:50 am-1:38 pm

1 stop9h 48m

$304

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 10/15

9:15 pm-10:10 am

2 stops9h 55m

Louisville Intl

Tue 10/20

7:10 am-1:50 pm

2 stops9h 40m

$305
Quickest round-trip

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Wed 9/2

2:27 pm-11:59 pm

1 stop6h 32m

Louisville Intl

Sun 9/6

7:10 am-1:14 pm

2 stops9h 04m

$309

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 $354.

How far in advance should I book a flight from Portland 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 $470 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 $341 on momondo.

How have Portland to Louisville flight prices changed over time?

As of July 2026, prices for Portland to Louisville flights are approximately 38% 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 46m

Direct flights

None
The fastest flight from Portland to Louisville takes 6h 46m
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 46m 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 $260Free CancellationRating
7.9
4,248 reviews
Search Southwest flights
American AirlinesPriceFrom $280Free CancellationRating
7.1
11,799 reviews
Search American Airlines flights
DeltaPriceFrom $304Free CancellationRating
7.8
8,456 reviews
Search Delta flights
United AirlinesPriceFrom $320Free CancellationRating
7.4
9,966 reviews
Search United Airlines flights

Traveling to a place near Louisville?

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

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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