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Cheap flights from Louisville to Portland from $160

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 2/15. 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.
United Airlines Logo
6:00 am - 10:49 am
SDF
-
PWM
4h 49m
1 stop
United Airlines Logo
4:23 pm - 10:13 pm
PWM
-
SDF
5h 50m
1 stop
$260United Airlines
Tue, Mar 24 - Wed, Mar 25
Delta Logo
10:46 am - 3:57 pm
SDF
-
PWM
5h 11m
1 stop
Delta Logo
5:21 am - 12:11 pm
PWM
-
SDF
6h 50m
1 stop
$265Delta
Wed, Apr 29 - Sun, May 3
Delta Logo
10:46 am - 3:57 pm
SDF
-
PWM
5h 11m
1 stop
Delta Logo
5:21 am - 2:30 pm
PWM
-
SDF
9h 09m
2 stops
$270Delta
Wed, Apr 29 - Tue, May 5
United Airlines Logo
9:00 am - 6:25 pm
SDF
-
PWM
9h 25m
2 stops
United Airlines Logo
4:23 pm - 10:13 pm
PWM
-
SDF
5h 50m
1 stop
$293United Airlines
Tue, Mar 24 - Wed, Mar 25
Delta Logo
6:04 am - 3:57 pm
SDF
-
PWM
9h 53m
2 stops
Delta Logo
4:42 pm - 9:18 pm
PWM
-
SDF
4h 36m
1 stop
$297Delta
Wed, Apr 29 - Mon, May 4
Delta Logo
6:04 am - 3:57 pm
SDF
-
PWM
9h 53m
2 stops
Delta Logo
5:21 am - 2:30 pm
PWM
-
SDF
9h 09m
2 stops
$302Delta
Wed, Apr 29 - Tue, May 5
American Airlines Logo
4:50 pm - 11:55 pm
SDF
-
PWM
7h 05m
1 stop
American Airlines Logo
5:51 pm - 11:43 pm
PWM
-
SDF
5h 52m
1 stop
$318American Airlines
Fri, Apr 3 - Mon, Apr 13
American Airlines Logo
6:00 am - 10:25 am
SDF
-
PWM
4h 25m
1 stop
American Airlines Logo
5:40 pm - 11:16 pm
PWM
-
SDF
5h 36m
1 stop
$319American Airlines
Tue, Feb 24 - Tue, Feb 24
Delta Logo
6:04 am - 3:57 pm
SDF
-
PWM
9h 53m
2 stops
Delta Logo
4:42 pm - 11:59 pm
PWM
-
SDF
7h 17m
2 stops
$329Delta
Wed, Apr 29 - Mon, May 4
Delta Logo
7:50 am - 11:57 am
SDF
-
PWM
4h 07m
1 stop
Delta Logo
6:02 am - 10:40 am
PWM
-
SDF
4h 38m
1 stop
$336Delta
Fri, May 15 - Sun, May 17

Delta flights from Louisville to Portland, Maine

Our best Delta deals on Louisville to Portland, Maine flight tickets
Delta
Apr 29
SDF10:46 amLouisville Intl
5h 11m
1 stop
PWM3:57 pmPortland
May 3
PWM5:21 amPortland
6h 50m
1 stop
SDF12:11 pmLouisville Intl
$265
Delta
Apr 29
SDF10:46 amLouisville Intl
5h 11m
1 stop
PWM3:57 pmPortland
May 5
PWM5:21 amPortland
9h 09m
2 stops
SDF2:30 pmLouisville Intl
$270
Delta
Apr 29
SDF6:04 amLouisville Intl
9h 53m
2 stops
PWM3:57 pmPortland
May 4
PWM4:42 pmPortland
4h 36m
1 stop
SDF9:18 pmLouisville Intl
$297

United Airlines flights from Louisville to Portland, Maine

Our best United Airlines deals on Louisville to Portland, Maine flight tickets
United Airlines
Mar 24
SDF6:00 amLouisville Intl
4h 49m
1 stop
PWM10:49 amPortland
Mar 25
PWM4:23 pmPortland
5h 50m
1 stop
SDF10:13 pmLouisville Intl
$260
United Airlines
Mar 24
SDF9:00 amLouisville Intl
9h 25m
2 stops
PWM6:25 pmPortland
Mar 25
PWM4:23 pmPortland
5h 50m
1 stop
SDF10:13 pmLouisville Intl
$293
United Airlines
Mar 28
SDF1:58 pmLouisville Intl
7h 06m
1 stop
PWM9:04 pmPortland
Mar 29
PWM6:04 amPortland
7h 13m
1 stop
SDF1:17 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 February 6, 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

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 3/24

6:00 am-10:49 am

1 stop4h 49m

Portland

Wed 3/25

4:23 pm-10:13 pm

1 stop5h 50m

$260

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

10:46 am-3:57 pm

1 stop5h 11m

Portland

Sun 5/3

5:21 am-12:11 pm

1 stop6h 50m

$265

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

10:46 am-3:57 pm

1 stop5h 11m

Portland

Tue 5/5

5:21 am-2:30 pm

2 stops9h 09m

$270

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 3/24

9:00 am-6:25 pm

2 stops9h 25m

Portland

Wed 3/25

4:23 pm-10:13 pm

1 stop5h 50m

$293

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

6:04 am-3:57 pm

2 stops9h 53m

Portland

Mon 5/4

4:42 pm-9:18 pm

1 stop4h 36m

$297

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

6:04 am-3:57 pm

2 stops9h 53m

Portland

Tue 5/5

5:21 am-2:30 pm

2 stops9h 09m

$302

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Fri 4/3

4:50 pm-11:55 pm

1 stop7h 05m

Portland

Mon 4/13

5:51 pm-11:43 pm

1 stop5h 52m

$318

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Tue 2/24

6:00 am-10:25 am

1 stop4h 25m

Portland

Tue 2/24

5:40 pm-11:16 pm

1 stop5h 36m

$319

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 4/29

6:04 am-3:57 pm

2 stops9h 53m

Portland

Mon 5/4

4:42 pm-11:59 pm

2 stops7h 17m

$329

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Fri 5/15

7:50 am-11:57 am

1 stop4h 07m

Portland

Sun 5/17

6:02 am-10:40 am

1 stop4h 38m

$336

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 cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Louisville is in January. Flight prices, which tend to average around $283, 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 January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $331.

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

You could potentially save up to 10% 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 02m

Direct flights

None
The fastest flight from Louisville to Portland, Maine takes 4h 02m
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 4h 02m.

  • 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 $236Free CancellationRating
7.2
11,248 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,162 reviews
Search Delta flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,280 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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