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Cheap flights from Louisville to Portland from $315

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Portland departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:25 am - 12:17 pmSDF-PWM
4h 52m1 stop
Delta Logo
6:00 am - 11:44 amPWM-SDF
5h 44m1 stop
$315Delta
Find Deal
Thu, Dec 25 - Tue, Jan 6
Delta Logo
7:25 am - 12:17 pmSDF-PWM
4h 52m1 stop
Delta Logo
5:45 am - 1:35 pmPWM-SDF
7h 50m1 stop
$360Delta
Find Deal
Thu, Dec 25 - Thu, Jan 1
American Airlines Logo
8:00 am - 1:22 pmSDF-PWM
5h 22m1 stop
American Airlines Logo
5:45 am - 10:34 amPWM-SDF
4h 49m1 stop
$369American Airlines
Find Deal
Wed, Dec 24 - Tue, Dec 30
American Airlines Logo
8:05 am - 6:59 pmSDF-PWM
10h 54m2 stops
American Airlines Logo
5:45 am - 10:34 amPWM-SDF
4h 49m1 stop
$385American Airlines
Find Deal
Wed, Dec 24 - Tue, Dec 30
Delta Logo
6:05 am - 11:00 amSDF-PWM
4h 55m1 stop
Delta Logo
6:00 am - 11:05 amPWM-SDF
5h 05m1 stop
$387Delta
Find Deal
Wed, Mar 25 - Thu, Mar 26
United Airlines Logo
9:05 am - 2:14 pmSDF-PWM
5h 09m1 stop
United Airlines Logo
9:00 am - 8:28 pmPWM-SDF
11h 28m2 stops
$390United Airlines
Find Deal
Thu, Dec 25 - Tue, Jan 6
Delta Logo
6:00 am - 4:15 pmSDF-PWM
10h 15m2 stops
Delta Logo
5:30 am - 1:50 pmPWM-SDF
8h 20m1 stop
$392Delta
Find Deal
Wed, Mar 25 - Thu, Mar 26
United Airlines Logo
2:00 pm - 11:22 pmSDF-PWM
9h 22m2 stops
United Airlines Logo
9:00 am - 8:28 pmPWM-SDF
11h 28m2 stops
$395United Airlines
Find Deal
Thu, Dec 25 - Tue, Jan 6
Multiple Airlines Logo
9:23 pm - 10:09 amSDF-PWM
12h 46m1 stop
Multiple Airlines Logo
11:21 am - 2:15 pmPWM-SDF
26h 54m1 stop
$426Multiple Airlines
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Mon, Dec 22 - Mon, Dec 29
Multiple Airlines Logo
9:14 am - 10:09 amSDF-PWM
24h 55m1 stop
Multiple Airlines Logo
11:21 am - 2:15 pmPWM-SDF
26h 54m1 stop
$472Multiple Airlines
Find Deal
Wed, Dec 24 - Mon, Dec 29

Delta flights from Louisville to Portland, Maine

Our best Delta deals on Louisville to Portland, Maine flight tickets
Delta
Dec 25
SDF7:25 amLouisville Intl
4h 52m
1 stop
PWM12:17 pmPortland
Jan 6
PWM6:00 amPortland
5h 44m
1 stop
SDF11:44 amLouisville Intl
$315
Find similar
Delta
Dec 25
SDF7:25 amLouisville Intl
4h 52m
1 stop
PWM12:17 pmPortland
Jan 1
PWM5:45 amPortland
7h 50m
1 stop
SDF1:35 pmLouisville Intl
$360
Find similar
Delta
Mar 25
SDF6:05 amLouisville Intl
4h 55m
1 stop
PWM11:00 amPortland
Mar 26
PWM6:00 amPortland
5h 05m
1 stop
SDF11:05 amLouisville Intl
$387
Find similar

American Airlines flights from Louisville to Portland, Maine

Our best American Airlines deals on Louisville to Portland, Maine flight tickets
American Airlines
Dec 24
SDF8:00 amLouisville Intl
5h 22m
1 stop
PWM1:22 pmPortland
Dec 30
PWM5:45 amPortland
4h 49m
1 stop
SDF10:34 amLouisville Intl
$369
Find similar
American Airlines
Dec 24
SDF8:05 amLouisville Intl
10h 54m
2 stops
PWM6:59 pmPortland
Dec 30
PWM5:45 amPortland
4h 49m
1 stop
SDF10:34 amLouisville Intl
$385
Find similar
American Airlines
Nov 21
SDF11:09 amLouisville Intl
12h 32m
1 stop
PWM11:41 pmPortland
Nov 23
PWM5:43 amPortland
15h 50m
1 stop
SDF9:33 pmLouisville Intl
$397
Find similar

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 November 4, 2025.
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

Thu 12/25

7:25 am-12:17 pm

1 stop4h 52m

Portland

Tue 1/6

6:00 am-11:44 am

1 stop5h 44m

$315

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 12/25

7:25 am-12:17 pm

1 stop4h 52m

Portland

Thu 1/1

5:45 am-1:35 pm

1 stop7h 50m

$360

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 12/24

8:00 am-1:22 pm

1 stop5h 22m

Portland

Tue 12/30

5:45 am-10:34 am

1 stop4h 49m

$369

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 12/24

8:05 am-6:59 pm

2 stops10h 54m

Portland

Tue 12/30

5:45 am-10:34 am

1 stop4h 49m

$385

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 3/25

6:05 am-11:00 am

1 stop4h 55m

Portland

Thu 3/26

6:00 am-11:05 am

1 stop5h 05m

$387

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 12/25

9:05 am-2:14 pm

1 stop5h 09m

Portland

Tue 1/6

9:00 am-8:28 pm

2 stops11h 28m

$390

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 3/25

6:00 am-4:15 pm

2 stops10h 15m

Portland

Thu 3/26

5:30 am-1:50 pm

1 stop8h 20m

$392

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Thu 12/25

2:00 pm-11:22 pm

2 stops9h 22m

Portland

Tue 1/6

9:00 am-8:28 pm

2 stops11h 28m

$395

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Mon 12/22

9:23 pm-10:09 am

1 stop12h 46m

Portland

Mon 12/29

11:21 am-2:15 pm

1 stop26h 54m

$426

LouisvillePortland

SDF - PWM

SDFPWM

Louisville Intl

Wed 12/24

9:14 am-10:09 am

1 stop24h 55m

Portland

Mon 12/29

11:21 am-2:15 pm

1 stop26h 54m

$472

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Louisville is on a Monday. momondo users have found tickets for Monday departures for as low as $377. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $455.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Louisville to Portland, Maine when you can find flight prices for as low as $332. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $441. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $425 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Louisville for as low as $306 on momondo.

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

You could potentially save up to 39% on your flight if you consider stops on a Louisville to Portland, Maine flight.

How have Louisville to Portland, Maine flight prices changed over time?

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

Direct flights

None
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 51m.

  • 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
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $270Free CancellationRating
7.9
8,003 reviews
Search Delta flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,239 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
Lewiston
Freeport
Brunswick
Bartlett
Auburn
Gorham
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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