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Cheap flights from Louisville to Portland from $159

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 7/21. 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 Louisville to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Breeze Airways Logo
10:56 am - 4:24 pm
SDF
-
PWM
5h 28m
1 stop
Breeze Airways Logo
3:05 pm - 9:45 am
PWM
-
SDF
18h 40m
1 stop
$268Breeze Airways
Sat, Sep 26 - Thu, Oct 1
Breeze Airways Logo
10:56 am - 4:24 pm
SDF
-
PWM
5h 28m
1 stop
Breeze Airways Logo
3:05 pm - 9:45 am
PWM
-
SDF
18h 40m
1 stop
$271Breeze Airways
Wed, Sep 23 - Thu, Oct 1
Delta Logo
5:55 pm - 11:30 pm
SDF
-
PWM
5h 35m
1 stop
Delta Logo
1:12 pm - 8:59 pm
PWM
-
SDF
7h 47m
1 stop
$317Delta
Tue, Jul 21 - Wed, Jul 29
United Airlines Logo
7:10 am - 2:38 pm
SDF
-
PWM
7h 28m
2 stops
United Airlines Logo
5:15 am - 10:18 am
PWM
-
SDF
5h 03m
1 stop
$322United Airlines
Sat, Sep 12 - Wed, Sep 23
Multiple Airlines Logo
9:09 pm - 11:24 pm
SDF
-
PWM
26h 15m
2 stops
Multiple Airlines Logo
3:05 pm - 9:45 am
PWM
-
SDF
18h 40m
1 stop
$328Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Delta Logo
5:59 pm - 11:17 pm
SDF
-
PWM
5h 18m
1 stop
Delta Logo
12:55 pm - 5:19 pm
PWM
-
SDF
4h 24m
1 stop
$336Delta
Tue, Sep 22 - Thu, Oct 1
Multiple Airlines Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Multiple Airlines Logo
7:00 am - 10:38 am
PWM
-
SDF
27h 38m
2 stops
$345Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Breeze Airways Logo
8:28 pm - 9:19 pm
SDF
-
PWM
24h 51m
1 stop
Breeze Airways Logo
7:00 am - 8:48 pm
PWM
-
SDF
37h 48m
2 stops
$351Breeze Airways
Mon, Aug 17 - Sun, Aug 23
United Airlines Logo
6:00 am - 10:04 am
SDF
-
PWM
4h 04m
1 stop
United Airlines Logo
5:15 am - 10:18 am
PWM
-
SDF
5h 03m
1 stop
$352United Airlines
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
11:44 am - 7:27 pm
SDF
-
PWM
7h 43m
2 stops
United Airlines Logo
9:55 am - 2:37 pm
PWM
-
SDF
4h 42m
1 stop
$353United Airlines
Tue, Jul 21 - Wed, Jul 29

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Breeze Airways flights from Louisville to Portland, Maine

Our best Breeze Airways deals on Louisville to Portland, Maine flight tickets
Breeze Airways
Sep 26
SDF10:56 amLouisville Intl
5h 28m
1 stop
PWM4:24 pmPortland
Oct 1
PWM3:05 pmPortland
18h 40m
1 stop
SDF9:45 amLouisville Intl
$268
Breeze Airways
Sep 23
SDF10:56 amLouisville Intl
5h 28m
1 stop
PWM4:24 pmPortland
Oct 1
PWM3:05 pmPortland
18h 40m
1 stop
SDF9:45 amLouisville Intl
$271
Breeze Airways
Aug 17
SDF8:28 pmLouisville Intl
24h 51m
1 stop
PWM9:19 pmPortland
Aug 23
PWM7:00 amPortland
37h 48m
2 stops
SDF8:48 pmLouisville Intl
$351

United Airlines flights from Louisville to Portland, Maine

Our best United Airlines deals on Louisville to Portland, Maine flight tickets
United Airlines
Sep 12
SDF7:10 amLouisville Intl
7h 28m
2 stops
PWM2:38 pmPortland
Sep 23
PWM5:15 amPortland
5h 03m
1 stop
SDF10:18 amLouisville Intl
$322
United Airlines
Aug 20
SDF6:00 amLouisville Intl
4h 04m
1 stop
PWM10:04 amPortland
Aug 24
PWM5:15 amPortland
5h 03m
1 stop
SDF10:18 amLouisville Intl
$352
United Airlines
Jul 21
SDF11:44 amLouisville Intl
7h 43m
2 stops
PWM7:27 pmPortland
Jul 29
PWM9:55 amPortland
4h 42m
1 stop
SDF2:37 pmLouisville Intl
$353

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 June 28, 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

Sat 9/26

10:56 am-4:24 pm

1 stop5h 28m

Portland

Thu 10/1

3:05 pm-9:45 am

1 stop18h 40m

$268

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 9/23

10:56 am-4:24 pm

1 stop5h 28m

Portland

Thu 10/1

3:05 pm-9:45 am

1 stop18h 40m

$271

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 7/21

5:55 pm-11:30 pm

1 stop5h 35m

Portland

Wed 7/29

1:12 pm-8:59 pm

1 stop7h 47m

$317

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Sat 9/12

7:10 am-2:38 pm

2 stops7h 28m

Portland

Wed 9/23

5:15 am-10:18 am

1 stop5h 03m

$322

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 9/24

9:09 pm-11:24 pm

2 stops26h 15m

Portland

Thu 10/1

3:05 pm-9:45 am

1 stop18h 40m

$328

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 9/22

5:59 pm-11:17 pm

1 stop5h 18m

Portland

Thu 10/1

12:55 pm-5:19 pm

1 stop4h 24m

$336

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 7/20

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Wed 7/29

7:00 am-10:38 am

2 stops27h 38m

$345

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 8/17

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Sun 8/23

7:00 am-8:48 pm

2 stops37h 48m

$351
Quickest round-trip

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 8/20

6:00 am-10:04 am

1 stop4h 04m

Portland

Mon 8/24

5:15 am-10:18 am

1 stop5h 03m

$352

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 7/21

11:44 am-7:27 pm

2 stops7h 43m

Portland

Wed 7/29

9:55 am-2:37 pm

1 stop4h 42m

$353

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 44% 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 04m

Direct flights

None
The fastest flight from Louisville to Portland, Maine takes 4h 04m
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 04m.

  • 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
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,776 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.8
8,455 reviews
Search Delta flights
SouthwestPriceFrom $286Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
9,899 reviews
Search United Airlines 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
Lewiston
Brunswick
Freeport
Conway
Bartlett
Gorham
Auburn
Windham
Intervale
Bath
Oxford
Falmouth
Georgetown
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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