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

Air Canada, KLM, and WestJet 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 $600.

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

Philadelphia (PHL) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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 42% 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 32m.

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

Washington, D.C. (IAD) has the shortest average layover time for this route: 4h 01m.

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 May 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.

$794 Cheap Flights from Louisville to Lisbon in 2026

Q: 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 $1,354 to $921. The lowest price recently found on this route was $857.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

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.

6:30 am - 9:20 am

SDF

LIS

45h 50m

2 stops

11:25 am - 10:09 pm

LIS

SDF

39h 44m

2 stops

$857Air Canada

Sat, Oct 17 - Sat, Oct 24

10:09 am - 9:05 am

SDF

LIS

17h 56m

1 stop

11:05 am - 5:51 pm

LIS

SDF

11h 46m

1 stop

$953American Airlines

Sat, Oct 17 - Sat, Oct 24

3:31 pm - 9:05 am

SDF

LIS

12h 34m

2 stops

11:05 am - 5:51 pm

LIS

SDF

11h 46m

1 stop

$958American Airlines

Sat, Oct 17 - Sat, Oct 24

11:13 am - 8:20 am

SDF

LIS

16h 07m

1 stop

11:25 am - 10:57 pm

LIS

SDF

40h 32m

2 stops

$968United Airlines

Tue, Sep 1 - Sat, Sep 12

10:15 am - 9:20 am

SDF

LIS

18h 05m

2 stops

11:25 am - 10:57 pm

LIS

SDF

40h 32m

2 stops

$972United Airlines

Tue, Sep 1 - Sat, Sep 12

1:00 pm - 8:50 am

SDF

LIS

14h 50m

2 stops

5:35 am - 10:50 pm

LIS

SDF

22h 15m

2 stops

$989Delta

Tue, Sep 1 - Sat, Sep 12

11:17 am - 8:50 am

SDF

LIS

16h 33m

2 stops

5:00 am - 5:41 pm

LIS

SDF

17h 41m

2 stops

$992Delta

Fri, Aug 28 - Wed, Sep 9

10:15 am - 9:20 am

SDF

LIS

18h 05m

3 stops

11:25 am - 10:57 pm

LIS

SDF

16h 32m

2 stops

$995Multiple Airlines

Tue, Sep 1 - Sat, Sep 12

7:31 am - 9:05 am

SDF

LIS

20h 34m

1 stop

11:05 am - 10:34 pm

LIS

SDF

16h 29m

1 stop

$998American Airlines

Fri, Aug 28 - Wed, Sep 9

10:05 am - 9:20 am

SDF

LIS

18h 15m

2 stops

10:25 am - 10:57 pm

LIS

SDF

17h 32m

1 stop

$1,002United Airlines

Fri, Aug 28 - Wed, Sep 9

Iberia flights from Louisville to Lisbon

Our best Iberia deals on Louisville to Lisbon flight tickets

Iberia

Sep 10

SDF7:07 pmLouisville Intl

23h 18m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Sep 14

LIS8:45 pmLisbon Humberto Delgado

31h 13m

2 stops

SDF10:58 pmLouisville Intl

$1,010

Iberia

Sep 10

SDF7:07 pmLouisville Intl

23h 18m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Sep 14

LIS8:45 pmLisbon Humberto Delgado

31h 13m

2 stops

SDF10:58 pmLouisville Intl

$1,035

Iberia

Sep 10

SDF7:07 pmLouisville Intl

23h 18m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Sep 14

LIS8:45 pmLisbon Humberto Delgado

31h 13m

2 stops

SDF10:58 pmLouisville Intl

$1,040

KLM flights from Louisville to Lisbon

Our best KLM deals on Louisville to Lisbon flight tickets

KLM

May 19

SDF1:15 pmLouisville Intl

16h 30m

1 stop

LIS10:45 amLisbon Humberto Delgado

May 28

LIS11:55 amLisbon Humberto Delgado

17h 30m

2 stops

SDF12:25 amLouisville Intl

$1,122

KLM

Jun 30

SDF12:46 pmLouisville Intl

16h 59m

1 stop

LIS10:45 amLisbon Humberto Delgado

Jul 7

LIS5:00 amLisbon Humberto Delgado

17h 49m

2 stops

SDF5:49 pmLouisville Intl

$1,184

KLM

May 24

SDF12:45 pmLouisville Intl

17h 00m

1 stop

LIS10:45 amLisbon Humberto Delgado

Jun 10

LIS5:00 amLisbon Humberto Delgado

16h 46m

2 stops

SDF4:46 pmLouisville Intl

$1,226

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 10/17

6:30 am-9:20 am

2 stops45h 50m

Lisbon Humberto Delgado

Sat 10/24

11:25 am-10:09 pm

2 stops39h 44m

$857

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 10/17

10:09 am-9:05 am

1 stop17h 56m

Lisbon Humberto Delgado

Sat 10/24

11:05 am-5:51 pm

1 stop11h 46m

$953

Quickest round-trip

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 10/17

3:31 pm-9:05 am

2 stops12h 34m

Lisbon Humberto Delgado

Sat 10/24

11:05 am-5:51 pm

1 stop11h 46m

$958

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 9/1

11:13 am-8:20 am

1 stop16h 07m

Lisbon Humberto Delgado

Sat 9/12

11:25 am-10:57 pm

2 stops40h 32m

$968

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 9/1

10:15 am-9:20 am

2 stops18h 05m

Lisbon Humberto Delgado

Sat 9/12

11:25 am-10:57 pm

2 stops40h 32m

$972

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 9/1

1:00 pm-8:50 am

2 stops14h 50m

Lisbon Humberto Delgado

Sat 9/12

5:35 am-10:50 pm

2 stops22h 15m

$989

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 8/28

11:17 am-8:50 am

2 stops16h 33m

Lisbon Humberto Delgado

Wed 9/9

5:00 am-5:41 pm

2 stops17h 41m

$992

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 9/1

10:15 am-9:20 am

3 stops18h 05m

Lisbon Humberto Delgado

Sat 9/12

11:25 am-10:57 pm

2 stops16h 32m

$995

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 8/28

7:31 am-9:05 am

1 stop20h 34m

Lisbon Humberto Delgado

Wed 9/9

11:05 am-10:34 pm

1 stop16h 29m

$998

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 8/28

10:05 am-9:20 am

2 stops18h 15m

Lisbon Humberto Delgado

Wed 9/9

10:25 am-10:57 pm

1 stop17h 32m

$1,002

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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?

What is the cheapest month to fly to Lisbon?

In general, December 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 $650. If you are unable to visit Lisbon during the month of December, then departing from Louisville during the month April is also very affordable. Most momondo users find prices during this month for around $651.

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

Fastest flight time	14h 50m
Direct flights	None

The fastest flight from Louisville to Lisbon takes 14h 50m

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 14h 50m, 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 May 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 58% of all bookings. The subsequent popular airlines are American Airlines at 31% and Delta at 12%.

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 $543	Free Cancellation	Rating 7.4 9,692 reviews	Search United Airlines flights
Delta	PriceFrom $587	Free Cancellation	Rating 7.9 8,457 reviews	Search Delta flights
American Airlines	PriceFrom $603	Free Cancellation	Rating 7.1 11,669 reviews	Search American Airlines flights

Sintra

Ericeira

Fátima

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Zambujeira do Mar

Óbidos

Batalha

Tomar

Comporta

Sines

Torres Vedras

Almada

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

Mon 6/8

Mon 6/15

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 $857

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 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Find the cheapest flights from Louisville to Lisbon

Cheap round-trip flights

Cheap one-way flights

Iberia flights from Louisville to Lisbon

Our best Iberia deals on Louisville to Lisbon flight tickets

KLM flights from Louisville to Lisbon

Our best KLM 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

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

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