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Cheap flights from Louisville to Portland from $122

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 8/31. 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.
Breeze Airways Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Breeze Airways Logo
3:05 pm - 9:43 am
PWM
-
SDF
18h 38m
1 stop
$303Breeze Airways
Mon, Aug 31 - Thu, Sep 10
Breeze Airways Logo
8:28 pm - 3:59 pm
SDF
-
PWM
19h 31m
2 stops
Breeze Airways Logo
3:05 pm - 9:43 am
PWM
-
SDF
18h 38m
1 stop
$336Breeze Airways
Mon, Aug 31 - Thu, Sep 10
Breeze Airways Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Breeze Airways Logo
6:31 pm - 8:29 pm
PWM
-
SDF
25h 58m
1 stop
$347Breeze Airways
Mon, Aug 31 - Sat, Sep 12
Breeze Airways Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Breeze Airways Logo
3:53 pm - 8:41 am
PWM
-
SDF
16h 48m
2 stops
$351Breeze Airways
Mon, Aug 31 - Fri, Sep 11
Southwest Logo
5:30 am - 9:55 am
SDF
-
PWM
4h 25m
1 stop
Southwest Logo
5:45 am - 12:40 pm
PWM
-
SDF
6h 55m
1 stop
$355Southwest
Wed, Sep 2 - Wed, Sep 9
United Airlines Logo
6:00 am - 10:04 am
SDF
-
PWM
4h 04m
1 stop
United Airlines Logo
6:00 am - 2:37 pm
PWM
-
SDF
8h 37m
2 stops
$360United Airlines
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
5:30 am - 9:55 am
SDF
-
PWM
4h 25m
1 stop
Southwest Logo
7:25 am - 12:40 pm
PWM
-
SDF
5h 15m
1 stop
$365Southwest
Wed, Aug 26 - Sat, Aug 29
Breeze Airways Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Breeze Airways Logo
3:16 pm - 8:41 am
PWM
-
SDF
17h 25m
2 stops
$367Breeze Airways
Mon, Aug 31 - Tue, Sep 8
Southwest Logo
1:15 pm - 9:10 pm
SDF
-
PWM
7h 55m
2 stops
Southwest Logo
5:40 am - 12:40 pm
PWM
-
SDF
7h 00m
1 stop
$370Southwest
Wed, Aug 26 - Sat, Aug 29
American Airlines Logo
7:18 pm - 12:42 am
SDF
-
PWM
5h 24m
1 stop
American Airlines Logo
3:05 pm - 11:08 pm
PWM
-
SDF
8h 03m
1 stop
$372American Airlines
Thu, Jun 4 - Tue, Jun 9

Southwest flights from Louisville to Portland, Maine

Our best Southwest deals on Louisville to Portland, Maine flight tickets
Southwest
Sep 2
SDF5:30 amLouisville Intl
4h 25m
1 stop
PWM9:55 amPortland
Sep 9
PWM5:45 amPortland
6h 55m
1 stop
SDF12:40 pmLouisville Intl
$355
Southwest
Aug 26
SDF5:30 amLouisville Intl
4h 25m
1 stop
PWM9:55 amPortland
Aug 29
PWM7:25 amPortland
5h 15m
1 stop
SDF12:40 pmLouisville Intl
$365
Southwest
Aug 26
SDF1:15 pmLouisville Intl
7h 55m
2 stops
PWM9:10 pmPortland
Aug 29
PWM5:40 amPortland
7h 00m
1 stop
SDF12:40 pmLouisville Intl
$370

Delta flights from Louisville to Portland, Maine

Our best Delta deals on Louisville to Portland, Maine flight tickets
Delta
Sep 5
SDF3:24 pmLouisville Intl
7h 09m
1 stop
PWM10:33 pmPortland
Sep 10
PWM6:00 amPortland
5h 33m
1 stop
SDF11:33 amLouisville Intl
$375
Delta
Jul 3
SDF4:40 pmLouisville Intl
6h 25m
1 stop
PWM11:05 pmPortland
Jul 7
PWM6:00 amPortland
5h 51m
1 stop
SDF11:51 amLouisville Intl
$381
Delta
Aug 15
SDF1:19 pmLouisville Intl
8h 12m
1 stop
PWM9:31 pmPortland
Aug 21
PWM6:30 amPortland
6h 57m
1 stop
SDF1:27 pmLouisville Intl
$396

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 May 12, 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

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Thu 9/10

3:05 pm-9:43 am

1 stop18h 38m

$303

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-3:59 pm

2 stops19h 31m

Portland

Thu 9/10

3:05 pm-9:43 am

1 stop18h 38m

$336

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Sat 9/12

6:31 pm-8:29 pm

1 stop25h 58m

$347

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Fri 9/11

3:53 pm-8:41 am

2 stops16h 48m

$351

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 9/2

5:30 am-9:55 am

1 stop4h 25m

Portland

Wed 9/9

5:45 am-12:40 pm

1 stop6h 55m

$355

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 8/12

6:00 am-10:04 am

1 stop4h 04m

Portland

Wed 8/19

6:00 am-2:37 pm

2 stops8h 37m

$360
Quickest round-trip

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 8/26

5:30 am-9:55 am

1 stop4h 25m

Portland

Sat 8/29

7:25 am-12:40 pm

1 stop5h 15m

$365

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Tue 9/8

3:16 pm-8:41 am

2 stops17h 25m

$367

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 8/26

1:15 pm-9:10 pm

2 stops7h 55m

Portland

Sat 8/29

5:40 am-12:40 pm

1 stop7h 00m

$370

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 6/4

7:18 pm-12:42 am

1 stop5h 24m

Portland

Tue 6/9

3:05 pm-11:08 pm

1 stop8h 03m

$372

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

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

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Louisville is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $283.

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

You could potentially save up to 72% 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

4h 00m

Direct flights

None
The fastest flight from Louisville to Portland, Maine takes 4h 00m
There are no direct flights from Louisville to Portland, Maine. There are no popular flight routes from Louisville to Portland, Maine.
Search flight deals

Frequently asked questions about flying from Louisville to Portland, Maine

  • 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 4h 00m.

  • 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 $177Free CancellationRating
7.9
8,446 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.1
11,661 reviews
Search American Airlines flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,295 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
Bath
Oxford
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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