What airlines fly to Lisbon?

United Airlines, British Airways and American Airlines 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 44% 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 connection time from Louisville to Lisbon?

Newark (EWR) has the shortest average layover time for this route: 3h 29m.

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

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 12m.

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

Washington, D.C. (IAD) was the most common stop: 56% 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 $937.

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 December 2025, there are 2 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.

$493 Cheap Flights from Louisville to Lisbon in 2025/26

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5:35 am - 9:20 am

SDF

LIS

22h 45m2 stops

11:20 am - 7:43 pm

LIS

SDF

37h 23m2 stops

$493United Airlines

Thu, Jan 15 - Mon, Jan 19

6:35 am - 8:00 am

SDF

LIS

21h 25m2 stops

5:00 am - 9:00 pm

LIS

SDF

20h 00m2 stops

$501Delta

Fri, Mar 20 - Thu, Mar 26

1:30 pm - 2:50 pm

SDF

LIS

20h 20m2 stops

10:40 am - 9:25 pm

LIS

SDF

38h 45m2 stops

$507British Airways

Fri, Feb 27 - Sun, Mar 8

2:05 pm - 8:10 am

SDF

LIS

13h 05m2 stops

10:15 am - 7:31 pm

LIS

SDF

14h 16m1 stop

$510United Airlines

Fri, Jan 23 - Tue, Jan 27

11:10 am - 9:20 am

SDF

LIS

17h 10m3 stops

11:20 am - 10:30 pm

LIS

SDF

16h 10m2 stops

$522Multiple Airlines

Thu, Jan 15 - Mon, Jan 19

7:45 am - 8:55 am

SDF

LIS

21h 10m2 stops

11:25 am - 9:28 am

LIS

SDF

26h 03m2 stops

$576Delta

Thu, Mar 19 - Tue, Mar 24

6:35 am - 8:00 am

SDF

LIS

21h 25m2 stops

5:30 am - 11:57 pm

LIS

SDF

22h 27m2 stops

$582Delta

Fri, Mar 20 - Mon, Mar 23

6:35 am - 8:00 am

SDF

LIS

21h 25m2 stops

10:00 am - 9:28 am

LIS

SDF

27h 28m2 stops

$585Delta

Fri, Mar 20 - Mon, Mar 23

8:15 am - 8:00 am

SDF

LIS

19h 45m2 stops

10:40 am - 1:16 pm

LIS

SDF

30h 36m1 stop

$592Delta

Fri, Mar 20 - Thu, Mar 26

5:33 am - 9:00 am

SDF

LIS

22h 27m2 stops

5:00 am - 10:51 pm

LIS

SDF

21h 51m2 stops

$601Delta

Fri, Mar 6 - Thu, Mar 12

United Airlines flights from Louisville to Lisbon

Our best United Airlines deals on Louisville to Lisbon flight tickets

United Airlines

Jan 15

SDF5:35 amLouisville Intl

22h 45m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 19

LIS11:20 amLisbon Humberto Delgado

37h 23m

2 stops

SDF7:43 pmLouisville Intl

$493

Find similar

United Airlines

Jan 23

SDF2:05 pmLouisville Intl

13h 05m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 27

LIS10:15 amLisbon Humberto Delgado

14h 16m

1 stop

SDF7:31 pmLouisville Intl

$510

Find similar

United Airlines

Mar 19

SDF9:55 amLouisville Intl

20h 20m

1 stop

LIS10:15 amLisbon Humberto Delgado

Mar 25

LIS5:00 amLisbon Humberto Delgado

21h 13m

2 stops

SDF10:13 pmLouisville Intl

$947

Find similar

American Airlines flights from Louisville to Lisbon

Our best American Airlines deals on Louisville to Lisbon flight tickets

American Airlines

Jan 15

SDF10:35 amLouisville Intl

16h 05m

2 stops

LIS7:40 amLisbon Humberto Delgado

Jan 19

LIS11:05 amLisbon Humberto Delgado

15h 11m

1 stop

SDF9:16 pmLouisville Intl

$667

Find similar

American Airlines

Mar 6

SDF3:49 pmLouisville Intl

12h 01m

1 stop

LIS8:50 amLisbon Humberto Delgado

Mar 12

LIS10:55 amLisbon Humberto Delgado

14h 17m

1 stop

SDF9:12 pmLouisville Intl

$750

Find similar

American Airlines

Jan 15

SDF7:00 amLouisville Intl

21h 05m

1 stop

LIS9:05 amLisbon Humberto Delgado

Jan 19

LIS11:05 amLisbon Humberto Delgado

15h 11m

1 stop

SDF9:16 pmLouisville Intl

$806

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Thu 1/15

5:35 am-9:20 am

2 stops22h 45m

Lisbon Humberto Delgado

Mon 1/19

11:20 am-7:43 pm

2 stops37h 23m

$493

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 3/20

6:35 am-8:00 am

2 stops21h 25m

Lisbon Humberto Delgado

Thu 3/26

5:00 am-9:00 pm

2 stops20h 00m

$501

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 2/27

1:30 pm-2:50 pm

2 stops20h 20m

Lisbon Humberto Delgado

Sun 3/8

10:40 am-9:25 pm

2 stops38h 45m

$507

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 1/23

2:05 pm-8:10 am

2 stops13h 05m

Lisbon Humberto Delgado

Tue 1/27

10:15 am-7:31 pm

1 stop14h 16m

$510

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Thu 1/15

11:10 am-9:20 am

3 stops17h 10m

Lisbon Humberto Delgado

Mon 1/19

11:20 am-10:30 pm

2 stops16h 10m

$522

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Thu 3/19

7:45 am-8:55 am

2 stops21h 10m

Lisbon Humberto Delgado

Tue 3/24

11:25 am-9:28 am

2 stops26h 03m

$576

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 3/20

6:35 am-8:00 am

2 stops21h 25m

Lisbon Humberto Delgado

Mon 3/23

5:30 am-11:57 pm

2 stops22h 27m

$582

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 3/20

6:35 am-8:00 am

2 stops21h 25m

Lisbon Humberto Delgado

Mon 3/23

10:00 am-9:28 am

2 stops27h 28m

$585

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 3/20

8:15 am-8:00 am

2 stops19h 45m

Lisbon Humberto Delgado

Thu 3/26

10:40 am-1:16 pm

1 stop30h 36m

$592

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 3/6

5:33 am-9:00 am

2 stops22h 27m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-10:51 pm

2 stops21h 51m

$601

Flights are sorted by cheapest round-trip flights first.

Sorted 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 cheapest month to fly to Lisbon?

In general, January 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 $618. If you are unable to visit Lisbon during the month of January, then departing from Louisville during the month December is also very affordable. Most momondo users find prices during this month for around $673.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $958. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Lisbon for around $1,157.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the evening when flights can be purchased for as low as $775. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,237 on average. Flights to Lisbon from Louisville at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Louisville to Lisbon flights?

You could potentially save up to 52% 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

Fastest flight time	17h 20m
Direct flights	None

The fastest flight from Louisville to Lisbon takes 17h 20m

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

Search flight deals

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 12h 01m, 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 December 2025, there are 2 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 61% of all bookings. The subsequent popular airline is American Airlines at 39%.

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
United Airlines	PriceFrom $596	Free Cancellation	Rating 7.4 9,089 reviews		Search United Airlines flights
American Airlines	PriceFrom $616	Free Cancellation	Rating 7.2 11,045 reviews		Search American Airlines flights

Sintra

Ericeira

Fátima

Nazaré

Oeiras

Setúbal

Peniche

Estoril

Leiria

Sesimbra

Tomar

Almada

Evora

Figueira da Foz

Zambujeira do Mar

Batalha

Comporta

Torres Vedras

Sines

Óbidos

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

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Cheap flights from Louisville to Lisbon from $493

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 Lisbon departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Louisville to Lisbon

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United Airlines flights from Louisville to Lisbon

Our best United Airlines deals on Louisville to Lisbon flight tickets

American Airlines flights from Louisville to Lisbon

Our best American Airlines deals on Louisville to Lisbon flight tickets

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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

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $958. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Lisbon for around $1,157.

What is the cheapest time of day to depart on your flight to Lisbon?

Can stopping save me money on Louisville to Lisbon flights?

You could potentially save up to 52% on your flight if you consider stops on a Louisville to Lisbon flight.

What airlines fly to Lisbon?

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

Washington, D.C. (IAD) was the most common stop: 56% 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 $937.

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

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 12m.

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

Newark (EWR) has the shortest average layover time for this route: 3h 29m.

When to book flights from Louisville to Lisbon

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

Fastest flight time

Direct flights

How far is Louisville Intl to Lisbon Humberto Delgado by plane?

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

How many operators does momondo search 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?

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

What is the most popular airline 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?

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

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

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

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

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