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Lisbon

$570+ Cheap flights from Louisville (SDF) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
May 8 — May 151
Fri 5/8
Fri 5/15
1 adult, Economy
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Cheap flight deals from Louisville to Lisbon

Cheapest flights from Louisville to Lisbon
Explore the most affordable flight options available from Louisville to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 8, 2026.

This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:30 pm
SDF
-
LIS
1 stop15h 00m
United Airlines
Tue 4/1411:25 am
LIS
-
SDF
2 stops30h 46m
United Airlines
Deal found 4/5$756
This Air Canada deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:30 am
SDF
-
LIS
2 stops21h 50m
Air Canada
Sun 11/811:20 am
LIS
-
SDF
2 stops36h 49m
Air Canada
Deal found 4/8$760
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:00 am
SDF
-
LIS
1 stop19h 30m
United Airlines
Fri 11/135:00 am
LIS
-
SDF
2 stops24h 05m
United Airlines
Deal found 4/8$764
This Air Canada deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:13 am
SDF
-
LIS
2 stops41h 07m
Air Canada
Sun 11/811:20 am
LIS
-
SDF
2 stops36h 49m
Air Canada
Deal found 4/8$765
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:20 pm
SDF
-
LIS
1 stop14h 55m
United Airlines
Thu 11/1211:55 am
LIS
-
SDF
1 stop12h 39m
United Airlines
Deal found 4/5$766
This Air Canada deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 pm
SDF
-
LIS
2 stops36h 00m
Air Canada
Tue 11/101:00 pm
LIS
-
SDF
2 stops39h 15m
Air Canada
Deal found 4/8$775
This American Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:31 am
SDF
-
LIS
1 stop20h 34m
American Airlines
Tue 4/1411:05 am
LIS
-
SDF
1 stop16h 26m
American Airlines
Deal found 4/5$776
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:00 am
SDF
-
LIS
1 stop19h 30m
United Airlines
Tue 11/1011:55 am
LIS
-
SDF
1 stop12h 39m
United Airlines
Deal found 4/8$777
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 am
SDF
-
LIS
2 stops19h 40m
Delta
Mon 11/95:30 am
LIS
-
SDF
2 stops21h 11m
Delta
Deal found 4/8$778
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:13 am
SDF
-
LIS
2 stops17h 07m
United Airlines
Wed 11/1111:55 am
LIS
-
SDF
1 stop12h 39m
United Airlines
Deal found 4/8$780

Find flight deals from Louisville to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$838
(Delta)

One-way from

$570
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$651
Provider with most accurate pricing for Louisville Intl-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Lisbon Humberto Delgado flights.
Search Deals
From Louisville Intl to Lisbon Humberto Delgado
Search Deals
One-way flight from Louisville Intl to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($208 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Lisbon 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, Cheapflights users made 2,558,603 searches. Data last updated April 8, 2026.
Use the filters below to find and compare flights from Louisville to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 5/2

2:04 pm-2:55 pm

2 stops19h 51m

Lisbon Humberto Delgado

Fri 5/15

11:55 am-12:25 am

2 stops17h 30m

$838

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 5/2

2:04 pm-10:55 am

2 stops15h 51m

Lisbon Humberto Delgado

Fri 5/15

5:00 am-5:01 pm

2 stops17h 01m

$843
Quickest round-trip

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 5/2

1:18 pm-9:05 am

1 stop14h 47m

Lisbon Humberto Delgado

Fri 5/15

11:05 am-10:31 pm

1 stop16h 26m

$952

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 5/2

5:40 am-9:20 am

2 stops22h 40m

Lisbon Humberto Delgado

Fri 5/15

10:25 am-7:22 pm

1 stop13h 57m

$952

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Thu 9/10

9:00 am-10:30 am

2 stops20h 30m

Lisbon Humberto Delgado

Mon 9/14

11:25 am-7:19 pm

2 stops36h 54m

$1,065

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 7/31

9:00 am-9:20 am

2 stops19h 20m

Lisbon Humberto Delgado

Thu 8/6

11:25 am-7:02 pm

2 stops36h 37m

$1,069
Cheapest one-way

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 5/17

9:14 pm-6:55 pm

3 stops40h 41m

$570

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 5/24

10:33 am-9:35 am

3 stops42h 02m

$624
Quickest one-way

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 5/17

7:59 pm-6:45 pm

2 stops17h 46m

$667

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 5/24

10:39 am-9:45 pm

2 stops30h 06m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Lisbon in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Lisbon

What is the cheapest month to book a flight from Louisville to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Louisville to Lisbon (average of $472). Flying from Louisville to Lisbon in June is currently the most expensive (average of $1,023). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Louisville to Lisbon?

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated April 8, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Louisville to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,551 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,551 reviews
United Airlines
7.4
Good
9,551 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,548 reviews
United Airlines
7.4
Good
9,551 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Louisville to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Louisville to Lisbon?

    Delta, KLM, and American Airlines can get you from Louisville to Lisbon in just under 14h 47m. Your travel time can differ by up to 5h 04m. Louisville and Lisbon are separated by a distance of 4008 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Louisville to Lisbon round-trip?

    According to our current data, United Airlines ($543), and American Airlines ($603) offers the cheapest pricing from Louisville to Lisbon. Users have found that United Airlines is 36% cheaper than the other options available to this destination.

  • Can I find deals for flights from Louisville to Lisbon that include hotel bookings?

    Yes. In addition to deals on Louisville to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Lisbon.

  • Can I find deals for business class flights from Louisville to Lisbon?

    Yes. Cheapflights offers flight deals from Louisville to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Lisbon (average of $472). Flying from Louisville to Lisbon in June is currently the most expensive (average of $1,023). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Lisbon flights
Nashville to Lisbon flights
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Nashville to Porto flights
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Lexington to Porto flights

Top 2 airlines flying from Louisville to Lisbon

Discover the top 2 airlines that operate flights from Louisville to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$543Average$871FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$603Average$870FlexibilityNo cancel feeOn-time71%

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