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Lisbon

$738+ Cheap flights from Louisville (SDF) to Lisbon (LIS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 11/42:11 pm
SDF
-
LIS
1 stop15h 09m
United Airlines
Tue 11/175:00 am
LIS
-
SDF
2 stops18h 32m
United Airlines
Deal found 7/27$738
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 11/410:37 am
SDF
-
LIS
2 stops15h 18m
United Airlines
Thu 11/125:00 am
LIS
-
SDF
2 stops18h 32m
United Airlines
Deal found 7/27$742
This United Airlines deal was found by Cheapflights users on 7/27. 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 11/101:45 pm
SDF
-
LIS
2 stops15h 20m
United Airlines
Tue 11/175:00 am
LIS
-
SDF
2 stops17h 41m
United Airlines
Deal found 7/27$743
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 12/66:30 am
SDF
-
LIS
1 stop20h 40m
United Airlines
Wed 12/911:20 am
LIS
-
SDF
2 stops39h 49m
United Airlines
Deal found 7/29$750
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 11/49:55 am
SDF
-
LIS
1 stop19h 25m
United Airlines
Wed 11/1110:15 am
LIS
-
SDF
1 stop15h 24m
United Airlines
Deal found 7/27$751
This Delta deal was found by Cheapflights users on 7/27. 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.
Wed 11/41:59 pm
SDF
-
LIS
2 stops14h 01m
Delta
Fri 11/1310:00 am
LIS
-
SDF
2 stops16h 13m
Delta
Deal found 7/27$755
This Air France deal was found by Cheapflights users on 7/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:59 pm
SDF
-
LIS
2 stops16h 11m
Multiple Airlines
Fri 11/135:00 am
LIS
-
SDF
2 stops17h 17m
Multiple Airlines
Deal found 7/27$763

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$738
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$984
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
Highest demand for flights based on searches. 22% potential increase in price ($267 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 1, 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

Tue 11/10

6:10 am-8:10 am

1 stop21h 00m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-6:32 pm

2 stops18h 32m

$738

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 12/6

1:00 pm-8:10 am

1 stop14h 10m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-10:09 pm

2 stops22h 09m

$752

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sun 12/6

12:20 pm-9:20 am

2 stops16h 00m

Lisbon Humberto Delgado

Wed 12/9

11:20 am-8:14 pm

2 stops37h 54m

$758
Quickest round-trip

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 11/17

1:30 pm-9:00 am

1 stop14h 30m

Lisbon Humberto Delgado

Sat 11/28

9:40 am-9:13 pm

2 stops16h 33m

$825

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Sorted by cheapest first

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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 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, December is the cheapest month in which you can book a flight from Louisville to Lisbon (average of $596). Flying from Louisville to Lisbon in June is currently the most expensive (average of $1,334). 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?

Airfare is below average for this route at the moment.

Louisville to Lisbon flights typically cost between $924 and $1,124 in November.
The cheapest round-trip price found within the last 5 days was $738 on United Airlines (Nov 4-Nov 17).

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 August 1, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican 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.
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,497 reviews
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,062 reviews
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,845 reviews
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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?

    United Airlines can get you from Louisville to Lisbon in just under 21h. Your travel time can differ by up to . Louisville and Lisbon are separated by a distance of 4008 mi.

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

    According to our current data, United Airlines ($543), Delta ($587), and American Airlines ($606) offers the cheapest pricing from Louisville to Lisbon. Users have found that United Airlines is 42% 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, December is the cheapest month in which you can book a flight from Louisville to Lisbon (average of $596). Flying from Louisville to Lisbon in June is currently the most expensive (average of $1,334). 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
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.
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Top 3 airlines flying from Louisville to Lisbon

Discover the top 3 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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$543Average$958FlexibilityNo cancel feeOn-time69%
DeltaCheapest$587Average$1,187FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$606Average$984FlexibilityNo cancel feeOn-time71%

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