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

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

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 offers the lowest fares from Louisville to Lisbon?

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

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.

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.

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.

$437 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

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Enter your travel dates to find the best prices.

2:20 pm - 11:30 pmSDF Louisville Intl-LIS Lisbon Humberto Delgado

29h 10m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

5:05 am - 11:55 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

23h 50m2 stops Frankfurt am Main Chicago O'Hare Intl

$710Lufthansa

Tue, Mar 23 - Thu, Apr 1

6:30 am - 6:55 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

5:05 am - 7:34 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

19h 29m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$755Multiple Airlines

Wed, Mar 17 - Sun, Mar 28

10:20 am - 9:20 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 00m2 stops Chicago O'Hare Intl Toronto Pearson Intl

5:00 am - 11:55 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

23h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$760Multiple Airlines

Tue, Feb 9 - Sun, Feb 14

8:45 am - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

19h 25m1 stop Newark

11:25 am - 5:30 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

35h 05m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$767United Airlines

Wed, Mar 17 - Sun, Mar 28

5:50 am - 6:55 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

21h 05m3 stops Washington, D.C. Dulles Intl Philadelphia Montreal Pierre Elliott Trudeau Intl

11:25 am - 5:30 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

35h 05m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$770United Airlines

Wed, Mar 17 - Sun, Mar 28

8:45 am - 9:20 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

19h 35m2 stops Newark Montreal Pierre Elliott Trudeau Intl

10:55 am - 11:15 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

41h 20m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$770United Airlines

Fri, Feb 12 - Fri, Feb 19

10:58 am - 9:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

17h 07m1 stop Philadelphia

6:30 am - 7:37 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 07m2 stops Madrid Barajas Charlotte Douglas

$781American Airlines

Fri, Feb 12 - Fri, Feb 19

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

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

14h 30m1 stop Boston Logan Intl

5:00 am - 10:53 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

22h 53m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,174Delta

Tue, Nov 17 - Sat, Nov 28

3:00 pm - 11:25 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

15h 25m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 10:53 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

22h 53m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,177Delta

Tue, Nov 17 - Sat, Nov 28

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United Airlines flights from Louisville to Lisbon

Our best United Airlines deals on Louisville to Lisbon flight tickets

United Airlines

Mar 17

SDF8:45 amLouisville Intl

19h 25m

1 stop

LIS8:10 amLisbon Humberto Delgado

Mar 28

LIS11:25 amLisbon Humberto Delgado

35h 05m

2 stops

SDF5:30 pmLouisville Intl

$767

United Airlines

Feb 28

SDF6:30 amLouisville Intl

20h 40m

1 stop

LIS8:10 amLisbon Humberto Delgado

Mar 7

LIS10:50 amLisbon Humberto Delgado

34h 40m

2 stops

SDF4:30 pmLouisville Intl

$772

United Airlines

Feb 28

SDF8:45 amLouisville Intl

18h 25m

1 stop

LIS8:10 amLisbon Humberto Delgado

Mar 7

LIS5:00 amLisbon Humberto Delgado

20h 14m

2 stops

SDF8:14 pmLouisville Intl

$774

Lufthansa flights from Louisville to Lisbon

Our best Lufthansa deals on Louisville to Lisbon flight tickets

Lufthansa

Mar 23

SDF2:20 pmLouisville Intl

29h 10m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Apr 1

LIS5:05 amLisbon Humberto Delgado

23h 50m

2 stops

SDF11:55 pmLouisville Intl

$710

Lufthansa

Mar 23

SDF2:20 pmLouisville Intl

15h 45m

1 stop

LIS10:05 amLisbon Humberto Delgado

Apr 1

LIS7:25 amLisbon Humberto Delgado

21h 30m

2 stops

SDF11:55 pmLouisville Intl

$936

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Tue 3/23

2:20 pm-11:30 pm

2 stops29h 10m

Lisbon Humberto Delgado

Thu 4/1

5:05 am-11:55 pm

2 stops23h 50m

$710

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Wed 3/17

6:30 am-6:55 am

2 stops20h 25m

Lisbon Humberto Delgado

Sun 3/28

5:05 am-7:34 pm

2 stops19h 29m

$755

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Tue 2/9

10:20 am-9:20 am

2 stops18h 00m

Lisbon Humberto Delgado

Sun 2/14

5:00 am-11:55 pm

2 stops23h 55m

$760

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Wed 3/17

8:45 am-8:10 am

1 stop19h 25m

Lisbon Humberto Delgado

Sun 3/28

11:25 am-5:30 pm

2 stops35h 05m

$767

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Wed 3/17

5:50 am-6:55 am

3 stops21h 05m

Lisbon Humberto Delgado

Sun 3/28

11:25 am-5:30 pm

2 stops35h 05m

$770

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Fri 2/12

8:45 am-9:20 am

2 stops19h 35m

Lisbon Humberto Delgado

Fri 2/19

10:55 am-11:15 pm

2 stops41h 20m

$770

Quickest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Fri 2/12

10:58 am-9:05 am

1 stop17h 07m

Lisbon Humberto Delgado

Fri 2/19

6:30 am-7:37 pm

2 stops18h 07m

$781

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

Tue 11/17

1:30 pm-9:00 am

1 stop14h 30m

Lisbon Humberto Delgado

Sat 11/28

5:00 am-10:53 pm

2 stops22h 53m

$1,174

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Tue 11/17

3:00 pm-11:25 am

2 stops15h 25m

Lisbon Humberto Delgado

Sat 11/28

5:00 am-10:53 pm

2 stops22h 53m

$1,177

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $710.

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	$437
Fastest flight time	13h 25m
Direct flights	None

The best one-way flight to Lisbon from Louisville in the past 72 hours is $437. The best round-trip flight deal from Louisville to Lisbon found on momondo in the last 72 hours is $710.

The fastest flight from Louisville to Lisbon takes 13h 25m

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 13h 25m, 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 12,181 reviews	Search American Airlines flights
Delta	PriceFrom $587	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.3 10,388 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

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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.

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Cheap flights from Louisville to Lisbon from $437

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 12/27. 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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United Airlines flights from Louisville to Lisbon

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Lufthansa flights from Louisville to Lisbon

Our best Lufthansa deals on Louisville to Lisbon flight tickets

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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

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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

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

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