Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to Portland from $127

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
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.
United Airlines Logo
6:00 am - 10:02 amSDF  Louisville Intl-PWM Portland
4h 02m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:00 am - 1:15 pmPWM  Portland-SDF Louisville Intl
7h 15m1 stop Chicago O'Hare Intl
$255United Airlines
Tue, Oct 20 - Sat, Oct 24
American Airlines Logo
6:16 pm - 10:44 pmSDF  Louisville Intl-PWM Portland
4h 28m1 stop Washington, D.C. Reagan-National
American Airlines Logo
6:00 am - 1:26 pmPWM  Portland-SDF Louisville Intl
7h 26m1 stop Washington, D.C. Reagan-National
$255American Airlines
Sat, Oct 10 - Sat, Oct 17
American Airlines Logo
5:19 pm - 11:43 pmSDF  Louisville Intl-PWM Portland
6h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 1:26 pmPWM  Portland-SDF Louisville Intl
7h 26m1 stop Washington, D.C. Reagan-National
$255American Airlines
Wed, Oct 14 - Sat, Oct 17
United Airlines Logo
6:15 am - 2:38 pmSDF  Louisville Intl-PWM Portland
8h 23m2 stops Newark Washington, D.C. Dulles Intl
United Airlines Logo
8:03 am - 12:39 pmPWM  Portland-SDF Louisville Intl
4h 36m1 stop Newark
$260United Airlines
Tue, Oct 20 - Sat, Oct 24
Southwest Logo
8:35 am - 5:20 pmSDF  Louisville Intl-PWM Portland
8h 45m2 stops Chicago Midway Nashville Intl
Southwest Logo
5:35 am - 2:55 pmPWM  Portland-SDF Louisville Intl
9h 20m2 stops Baltimore/Washington Nashville Intl
$265Southwest
Tue, Oct 20 - Sat, Oct 24
Breeze Airways Logo
8:28 pm - 9:19 pmSDF  Louisville Intl-PWM Portland
24h 51m1 stop Charleston
Breeze Airways Logo
3:05 pm - 9:45 amPWM  Portland-SDF Louisville Intl
18h 40m1 stop Pittsburgh
$265Breeze Airways
Mon, Aug 31 - Thu, Sep 10
Delta Logo
5:59 pm - 11:30 pmSDF  Louisville Intl-PWM Portland
5h 31m1 stop New York LaGuardia
Delta Logo
6:30 am - 1:43 pmPWM  Portland-SDF Louisville Intl
7h 13m1 stop New York LaGuardia
$268Delta
Mon, Aug 31 - Wed, Sep 9
Delta Logo
11:45 am - 4:50 pmSDF  Louisville Intl-PWM Portland
5h 05m1 stop New York LaGuardia
Delta Logo
6:30 am - 11:05 amPWM  Portland-SDF Louisville Intl
4h 35m1 stop New York LaGuardia
$268Delta
Thu, Sep 3 - Wed, Sep 9
Southwest Logo
5:40 am - 9:50 amSDF  Louisville Intl-PWM Portland
4h 10m1 stop Baltimore/Washington
Southwest Logo
5:10 pm - 12:20 amPWM  Portland-SDF Louisville Intl
7h 10m1 stop Baltimore/Washington
$270Southwest
Thu, Nov 19 - Mon, Nov 23
Breeze Airways Logo
8:28 pm - 9:19 pmSDF  Louisville Intl-PWM Portland
24h 51m1 stop Charleston
Breeze Airways Logo
5:01 pm - 10:32 amPWM  Portland-SDF Louisville Intl
17h 31m2 stops Raleigh-Durham Tampa
$293Breeze Airways
Mon, Aug 31 - Sat, Sep 5

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from Louisville to Portland, Maine

Our best Southwest deals on Louisville to Portland, Maine flight tickets
Southwest
Nov 19
SDF5:40 amLouisville Intl
4h 10m
1 stop
PWM9:50 amPortland
Nov 23
PWM5:10 pmPortland
7h 10m
1 stop
SDF12:20 amLouisville Intl
$270
Southwest
Nov 19
SDF5:40 amLouisville Intl
4h 10m
1 stop
PWM9:50 amPortland
Nov 23
PWM11:10 amPortland
9h 50m
2 stops
SDF9:00 pmLouisville Intl
$276
Southwest
Sep 5
SDF3:50 pmLouisville Intl
5h 15m
1 stop
PWM9:05 pmPortland
Sep 9
PWM5:45 amPortland
10h 35m
2 stops
SDF4:20 pmLouisville Intl
$322

Breeze Airways flights from Louisville to Portland, Maine

Our best Breeze Airways deals on Louisville to Portland, Maine flight tickets
Breeze Airways
Aug 31
SDF8:28 pmLouisville Intl
24h 51m
1 stop
PWM9:19 pmPortland
Sep 10
PWM3:05 pmPortland
18h 40m
1 stop
SDF9:45 amLouisville Intl
$265
Breeze Airways
Aug 31
SDF8:28 pmLouisville Intl
24h 51m
1 stop
PWM9:19 pmPortland
Sep 5
PWM5:01 pmPortland
17h 31m
2 stops
SDF10:32 amLouisville Intl
$293
Breeze Airways
Aug 31
SDF8:28 pmLouisville Intl
19h 31m
2 stops
PWM3:59 pmPortland
Sep 10
PWM3:05 pmPortland
18h 40m
1 stop
SDF9:45 amLouisville Intl
$296

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 August 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 Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Tue 10/20

6:00 am-10:02 am

1 stop4h 02m

Portland

Sat 10/24

6:00 am-1:15 pm

1 stop7h 15m

$255

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Sat 10/10

6:16 pm-10:44 pm

1 stop4h 28m

Portland

Sat 10/17

6:00 am-1:26 pm

1 stop7h 26m

$255

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Wed 10/14

5:19 pm-11:43 pm

1 stop6h 24m

Portland

Sat 10/17

6:00 am-1:26 pm

1 stop7h 26m

$255

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Tue 10/20

6:15 am-2:38 pm

2 stops8h 23m

Portland

Sat 10/24

8:03 am-12:39 pm

1 stop4h 36m

$260

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Tue 10/20

8:35 am-5:20 pm

2 stops8h 45m

Portland

Sat 10/24

5:35 am-2:55 pm

2 stops9h 20m

$265

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Thu 9/10

3:05 pm-9:45 am

1 stop18h 40m

$265

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Mon 8/31

5:59 pm-11:30 pm

1 stop5h 31m

Portland

Wed 9/9

6:30 am-1:43 pm

1 stop7h 13m

$268
Quickest round-trip

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Thu 9/3

11:45 am-4:50 pm

1 stop5h 05m

Portland

Wed 9/9

6:30 am-11:05 am

1 stop4h 35m

$268

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Thu 11/19

5:40 am-9:50 am

1 stop4h 10m

Portland

Mon 11/23

5:10 pm-12:20 am

1 stop7h 10m

$270

LouisvillePortland

SDF Louisville Intl - PWM Portland

SDFPWM

Louisville Intl

Mon 8/31

8:28 pm-9:19 pm

1 stop24h 51m

Portland

Sat 9/5

5:01 pm-10:32 am

2 stops17h 31m

$293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Prices are currently low for flights on this route.

Typical prices usually range from $406 to $524.
The lowest price recently found on this route was $255.

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 6% 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

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

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 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 $272Free CancellationRating
7.1
11,911 reviews
Search American Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,218 reviews
Search Southwest flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
DeltaPriceFrom $335Free CancellationRating
7.8
8,505 reviews
Search Delta 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
Gorham
Auburn
Bartlett
Conway
Windham
Bath
Intervale
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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 9/11
Fri 9/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States