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Cheap flights from Louisville to Portland from $204

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Portland departing on 6/22. 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
0 bags

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Find the cheapest flights from Louisville to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 10:07 am
SDF
-
PWM
4h 07m
1 stop
American Airlines Logo
5:02 pm - 9:28 pm
PWM
-
SDF
4h 26m
1 stop
$335American Airlines
Wed, Apr 29 - Tue, May 5
American Airlines Logo
6:00 am - 10:07 am
SDF
-
PWM
4h 07m
1 stop
American Airlines Logo
5:02 pm - 9:28 pm
PWM
-
SDF
4h 26m
1 stop
$337American Airlines
Wed, Apr 29 - Tue, May 5
Breeze Airways Logo
8:06 pm - 10:39 pm
SDF
-
PWM
26h 33m
2 stops
Breeze Airways Logo
6:38 pm - 10:32 am
PWM
-
SDF
15h 54m
1 stop
$396Breeze Airways
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
6:00 am - 1:25 pm
SDF
-
PWM
7h 25m
1 stop
United Airlines Logo
4:28 pm - 10:30 pm
PWM
-
SDF
6h 02m
1 stop
$406United Airlines
Tue, Apr 7 - Tue, Apr 14
Delta Logo
12:53 pm - 6:01 pm
SDF
-
PWM
5h 08m
1 stop
Delta Logo
6:50 pm - 11:59 pm
PWM
-
SDF
5h 09m
1 stop
$407Delta
Fri, Jul 31 - Mon, Aug 3
Southwest Logo
11:50 am - 9:00 pm
SDF
-
PWM
9h 10m
2 stops
Southwest Logo
5:30 am - 12:25 pm
PWM
-
SDF
6h 55m
1 stop
$412Southwest
Sat, Jul 18 - Tue, Jul 21
United Airlines Logo
2:00 pm - 9:19 pm
SDF
-
PWM
7h 19m
1 stop
United Airlines Logo
4:50 pm - 11:56 pm
PWM
-
SDF
7h 06m
1 stop
$416United Airlines
Wed, May 6 - Sat, May 9
Southwest Logo
11:50 am - 9:00 pm
SDF
-
PWM
9h 10m
2 stops
Southwest Logo
5:30 am - 12:05 pm
PWM
-
SDF
6h 35m
2 stops
$417Southwest
Sat, Jul 18 - Tue, Jul 21
United Airlines Logo
3:36 pm - 9:19 pm
SDF
-
PWM
5h 43m
1 stop
United Airlines Logo
11:08 am - 10:30 pm
PWM
-
SDF
11h 22m
2 stops
$421United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
11:11 am - 7:04 pm
SDF
-
PWM
7h 53m
2 stops
United Airlines Logo
3:39 pm - 11:56 pm
PWM
-
SDF
8h 17m
2 stops
$426United Airlines
Wed, May 6 - Sat, May 9

American Airlines flights from Louisville to Portland, Maine

Our best American Airlines deals on Louisville to Portland, Maine flight tickets
American Airlines
Apr 29
SDF6:00 amLouisville Intl
4h 07m
1 stop
PWM10:07 amPortland
May 5
PWM5:02 pmPortland
4h 26m
1 stop
SDF9:28 pmLouisville Intl
$335
American Airlines
Jun 20
SDF10:47 amLouisville Intl
8h 02m
1 stop
PWM6:49 pmPortland
Jun 29
PWM5:57 pmPortland
6h 31m
1 stop
SDF12:28 amLouisville Intl
$427
American Airlines
Jul 23
SDF3:39 pmLouisville Intl
6h 57m
1 stop
PWM10:36 pmPortland
Jul 27
PWM6:00 pmPortland
6h 34m
1 stop
SDF12:34 amLouisville Intl
$437

United Airlines flights from Louisville to Portland, Maine

Our best United Airlines deals on Louisville to Portland, Maine flight tickets
United Airlines
Apr 7
SDF6:00 amLouisville Intl
7h 25m
1 stop
PWM1:25 pmPortland
Apr 14
PWM4:28 pmPortland
6h 02m
1 stop
SDF10:30 pmLouisville Intl
$406
United Airlines
May 6
SDF2:00 pmLouisville Intl
7h 19m
1 stop
PWM9:19 pmPortland
May 9
PWM4:50 pmPortland
7h 06m
1 stop
SDF11:56 pmLouisville Intl
$416
United Airlines
May 6
SDF3:36 pmLouisville Intl
5h 43m
1 stop
PWM9:19 pmPortland
May 9
PWM11:08 amPortland
11h 22m
2 stops
SDF10:30 pmLouisville Intl
$421

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Portland, Maine 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 March 23, 2026.
Use the filters below to find and compare flights from Louisville to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

6:00 am-10:07 am

1 stop4h 07m

Portland

Tue 5/5

5:02 pm-9:28 pm

1 stop4h 26m

$335

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

6:00 am-10:07 am

1 stop4h 07m

Portland

Tue 5/5

5:02 pm-9:28 pm

1 stop4h 26m

$337

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Sat 8/22

8:06 pm-10:39 pm

2 stops26h 33m

Portland

Sat 8/29

6:38 pm-10:32 am

1 stop15h 54m

$396

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 4/7

6:00 am-1:25 pm

1 stop7h 25m

Portland

Tue 4/14

4:28 pm-10:30 pm

1 stop6h 02m

$406

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Fri 7/31

12:53 pm-6:01 pm

1 stop5h 08m

Portland

Mon 8/3

6:50 pm-11:59 pm

1 stop5h 09m

$407

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Sat 7/18

11:50 am-9:00 pm

2 stops9h 10m

Portland

Tue 7/21

5:30 am-12:25 pm

1 stop6h 55m

$412

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 5/6

2:00 pm-9:19 pm

1 stop7h 19m

Portland

Sat 5/9

4:50 pm-11:56 pm

1 stop7h 06m

$416

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Sat 7/18

11:50 am-9:00 pm

2 stops9h 10m

Portland

Tue 7/21

5:30 am-12:05 pm

2 stops6h 35m

$417

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 5/6

3:36 pm-9:19 pm

1 stop5h 43m

Portland

Sat 5/9

11:08 am-10:30 pm

2 stops11h 22m

$421

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 5/6

11:11 am-7:04 pm

2 stops7h 53m

Portland

Sat 5/9

3:39 pm-11:56 pm

2 stops8h 17m

$426

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 Portland from

How to get the cheapest flight ticket from Louisville to Portland, Maine

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

Can stopping save me money on Louisville to Portland, Maine flights?

You could potentially save up to 69% on your flight if you consider stops on a Louisville to Portland, Maine flight.

When to book flights from Louisville to Portland, Maine

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

Cheap Louisville to Portland, Maine (SDF to PWM) flight deals and tips

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

Fastest flight time

5h 16m

Direct flights

None
The fastest flight from Louisville to Portland, Maine takes 5h 16m
There are no direct flights from Louisville to Portland, Maine. There are no popular flight routes from Louisville to Portland, Maine.
Search flight deals

  • How far is Louisville Intl to Portland by plane?

    A flight from Louisville Intl to Portland will travel around 888.5 mi. In terms of flight time, this usually takes a little over 5h 16m.

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

    Prices for flights from Louisville Intl Airport to Portland Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Portland Airport.

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

    The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Louisville to Portland, Maine

Compare and see reviews for airlines that fly from Louisville to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $183Free CancellationRating
7.9
8,319 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,461 reviews
Search United Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,324 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Oxford
Bath
Georgetown
Falmouth
Tamworth

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisville to Portland. momondo saves you time and could save you money on your trip.

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

Flights from Louisville to Portland 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 Louisville to Portland?

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 Portland from Louisville.

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

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

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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