What is the cheapest airline that flies from Louisville Intl to Lisbon Humberto Delgado?

American Airlines, United Airlines, and Aer Lingus are the most popular carriers operating from Louisville Intl to Lisbon Humberto Delgado

Which layover airport offers the lowest fares from Louisville to Lisbon?

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $908.

Which airport is the most popular layover for flights between Louisville and Lisbon?

Philadelphia (PHL) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Louisville to Lisbon?

Newark (EWR) has the shortest average layover time for this route: 4h 18m.

What airlines fly to Lisbon?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Lisbon from Louisville according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 5 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Louisville to Lisbon?

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 13h 06m.

When did momondo last update prices for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport?

As of October 2026, there are 3 operators available to choose from for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport.

How old do you have to be to fly from Louisville Intl Airport to Lisbon Humberto Delgado Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$331 Cheap Flights from Louisville to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Lisbon

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 10m2 stops Chicago O'Hare Intl Newark

5:00 am - 5:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 20m2 stops Frankfurt am Main Chicago O'Hare Intl

$706Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

5:00 am - 5:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 20m2 stops Frankfurt am Main Chicago O'Hare Intl

$706Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

1:59 pm - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

13h 11m2 stops Chicago O'Hare Intl Newark

5:00 am - 6:47 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 47m2 stops Frankfurt am Main Chicago O'Hare Intl

$713United Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

5:00 am - 6:47 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 47m2 stops Frankfurt am Main Chicago O'Hare Intl

$713United Airlines

Sun, Dec 6 - Tue, Dec 22

10:25 am - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 40m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

5:00 am - 10:39 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

22h 39m2 stops Frankfurt am Main Chicago O'Hare Intl

$713Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

12:20 pm - 7:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

12h 00m1 stop Washington, D.C. Dulles Intl

$719United Airlines

Sun, Dec 6 - Tue, Dec 22

10:15 am - 11:25 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 10m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:00 am - 9:41 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

21h 41m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$780Delta

Sun, Feb 28 - Sat, Mar 6

7:00 am - 9:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

21h 05m1 stop Philadelphia

11:05 am - 11:13 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 08m1 stop Philadelphia

$787American Airlines

Tue, Feb 9 - Sun, Feb 14

7:45 am - 9:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Philadelphia

11:05 am - 11:13 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 08m1 stop Philadelphia

$788American Airlines

Sun, Feb 28 - Sat, Mar 6

1:30 pm - 9:00 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 30m1 stop Boston Logan Intl

11:15 am - 8:59 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

14h 44m2 stops Boston Logan Intl New York LaGuardia

$829Delta

Mon, Nov 9 - Wed, Nov 18

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Louisville to Lisbon

Our best United Airlines deals on Louisville to Lisbon flight tickets

United Airlines

Dec 6

SDF1:59 pmLouisville Intl

13h 11m

2 stops

LIS8:10 amLisbon Humberto Delgado

Dec 22

LIS5:00 amLisbon Humberto Delgado

18h 47m

2 stops

SDF6:47 pmLouisville Intl

$713

United Airlines

Dec 6

SDF2:25 pmLouisville Intl

14h 40m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 22

LIS12:20 pmLisbon Humberto Delgado

12h 00m

1 stop

SDF7:20 pmLouisville Intl

$719

United Airlines

Dec 6

SDF2:25 pmLouisville Intl

14h 40m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 22

LIS12:20 pmLisbon Humberto Delgado

12h 00m

1 stop

SDF7:20 pmLouisville Intl

$731

Air Canada flights from Louisville to Lisbon

Our best Air Canada deals on Louisville to Lisbon flight tickets

Air Canada

Feb 28

SDF7:00 amLouisville Intl

18h 55m

2 stops

LIS6:55 amLisbon Humberto Delgado

Mar 7

LIS10:40 amLisbon Humberto Delgado

38h 21m

2 stops

SDF8:01 pmLouisville Intl

$770

Air Canada

Feb 28

SDF9:00 amLouisville Intl

16h 55m

3 stops

LIS6:55 amLisbon Humberto Delgado

Mar 7

LIS10:40 amLisbon Humberto Delgado

18h 15m

3 stops

SDF11:55 pmLouisville Intl

$806

Air Canada

Nov 10

SDF2:10 pmLouisville Intl

35h 45m

2 stops

LIS6:55 amLisbon Humberto Delgado

Nov 19

LIS8:55 amLisbon Humberto Delgado

38h 37m

2 stops

SDF6:32 pmLouisville Intl

$808

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

9:00 am-8:10 am

2 stops18h 10m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-5:20 pm

2 stops17h 20m

$706

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-5:20 pm

2 stops17h 20m

$706

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

1:59 pm-8:10 am

2 stops13h 11m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-6:47 pm

2 stops18h 47m

$713

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-6:47 pm

2 stops18h 47m

$713

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

10:25 am-10:05 am

2 stops18h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-10:39 pm

2 stops22h 39m

$713

Quickest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

12:20 pm-7:20 pm

1 stop12h 00m

$719

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 2/28

10:15 am-11:25 am

2 stops20h 10m

Lisbon Humberto Delgado

Sat 3/6

5:00 am-9:41 pm

2 stops21h 41m

$780

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Tue 2/9

7:00 am-9:05 am

1 stop21h 05m

Lisbon Humberto Delgado

Sun 2/14

11:05 am-11:13 pm

1 stop17h 08m

$787

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 2/28

7:45 am-9:05 am

1 stop20h 20m

Lisbon Humberto Delgado

Sat 3/6

11:05 am-11:13 pm

1 stop17h 08m

$788

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Mon 11/9

1:30 pm-9:00 am

1 stop14h 30m

Lisbon Humberto Delgado

Wed 11/18

11:15 am-8:59 pm

2 stops14h 44m

$829

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Lisbon

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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Louisville and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $952 to $1,317.
The lowest price recently found on this route was $706.

What is the cheapest month to fly to Lisbon?

In general, April is the cheapest month to fly from Louisville to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $651. If you are unable to visit Lisbon during the month of April, then departing from Louisville during the month January is also very affordable. Most momondo users find prices during this month for around $659.

Can stopping save me money on Louisville to Lisbon flights?

You could potentially save up to 19% on your flight if you consider stops on a Louisville to Lisbon flight.

When to book flights from Louisville to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Lisbon (SDF to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Lisbon

Best Price Found	$331
Fastest flight time	18h 00m
Direct flights	None

The best one-way flight to Lisbon from Louisville in the past 72 hours is $331. The best round-trip flight deal from Louisville to Lisbon found on momondo in the last 72 hours is $706.

The fastest flight from Louisville to Lisbon takes 18h 00m

There are no direct flights from Louisville to Lisbon. There are no popular flight routes from Louisville to Lisbon.

Search flight deals

Frequently asked questions about flying from Louisville to Lisbon

How far is Louisville Intl to Lisbon Humberto Delgado by plane?
The straight-line distance from Louisville Intl to Lisbon Humberto Delgado is 4008.7 mi. Flights usually cover this in 18h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport?
As of October 2026, there are 3 operators available to choose from for flights from Louisville Intl Airport to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Louisville Intl Airport to Lisbon Humberto Delgado Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Lisbon?
momondo data reveals that the most frequently booked airline on the route from Louisville to Lisbon is United Airlines, representing 59% of all bookings. The subsequent popular airlines are American Airlines at 23% and Delta at 18%.

Best airlines flying from Louisville to Lisbon

Compare and see reviews for airlines that fly from Louisville to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $556	Free Cancellation	Rating 7.0 12,186 reviews	Search American Airlines flights
Delta	PriceFrom $587	Free Cancellation	Rating 7.8 8,661 reviews	Search Delta flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.3 10,404 reviews	Search United Airlines flights

Sintra

Setúbal

Figueira da Foz

Nazaré

Evora

Estoril

Fátima

Óbidos

Ericeira

Sesimbra

Batalha

Leiria

Sines

Caldas da Rainha

Comporta

Oeiras

Costa da Caparica

Tomar

Torres Vedras

Beja

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Lisbon?

It is quick and easy to find Louisville to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

Can I find flights from Louisville to Lisbon with flexible booking policies on momondo?

All flight searches from Louisville to Lisbon on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Lisbon?

Once you have performed a search for Louisville to Lisbon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to Lisbon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Louisville to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Lisbon 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

Sat 11/21

Sat 11/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Nearby airports

Airlines

Cabin classes

Other Portugal destinations

Other flights from Louisville

Complete your trip

Feeling lucky

Airports servicing Portugal

Cheap flights from Louisville to Lisbon from $331

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 Lisbon 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.

Find the cheapest flights from Louisville to Lisbon

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Louisville to Lisbon

Our best United Airlines deals on Louisville to Lisbon flight tickets

Air Canada flights from Louisville to Lisbon

Our best Air Canada deals on Louisville to Lisbon flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to Lisbon that are best for you.

See travel insights to Lisbon from

How to get the cheapest flight ticket from Louisville to Lisbon

What is the typical price of a round-trip flight between Louisville and Lisbon?

What is the cheapest month to fly to Lisbon?

Can stopping save me money on Louisville to Lisbon flights?

What is the cheapest airline that flies from Louisville Intl to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Louisville and Lisbon?

Which layover airport offers the lowest fares from Louisville to Lisbon?

Which layover airport has the shortest travel time from Louisville to Lisbon?

Which layover airport has the shortest connection time from Louisville to Lisbon?

When to book flights from Louisville to Lisbon

Cheap Louisville to Lisbon (SDF to LIS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Lisbon

Best airlines flying from Louisville to Lisbon

Compare and see reviews for airlines that fly from Louisville to Lisbon with momondo

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Lisbon

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Louisville

According to popular flight searches on momondo this year

Complete your trip to Lisbon

Explore popular destinations other users love

According to popular flight searches on momondo this year