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Portugal

$651+ Cheap flights from Louisville (SDF) to Portugal

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Louisville to Portugal

Keep the following information in mind while searching for Louisville to Portugal flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(United Airlines)

Popular in

May

Cheapest in

January

Average price

$714
Provider with most accurate pricing for Louisville Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Lisbon Humberto Delgado flights.
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From Louisville Intl to Portugal
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Highest demand for flights based on searches. 14% potential increase in price ($172 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Louisville to Portugal

Cheapest flights from Louisville to Portugal
Explore the most affordable flight options available from Louisville to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Justfly.com deal was found by Cheapflights users on 2/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:35 amSDF - LIS
2 stops18h 45mAir Canada
Sun 11/2311:00 amLIS - SDF
2 stops34h 49mAir Canada
Deal found 2/19$651
This United Airlines deal was found by Cheapflights users on 2/19. 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 11/129:35 amSDF - LIS
1 stop19h 40mUnited Airlines
Sun 11/2311:00 amLIS - SDF
2 stops34h 49mUnited Airlines
Deal found 2/19$654
This Air Canada deal was found by Cheapflights users on 2/19. 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 11/1211:10 amSDF - LIS
3 stops17h 10mMultiple Airlines
Sun 11/2311:00 amLIS - SDF
2 stops27h 42mMultiple Airlines
Deal found 2/19$688
This American Airlines deal was found by Cheapflights users on 2/19. 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 8/127:56 amSDF - LIS
1 stop20h 09mAmerican Airlines
Tue 8/2611:05 amLIS - SDF
1 stop14h 43mAmerican Airlines
Deal found 2/19$828
This Expedia deal was found by Cheapflights users on 2/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:43 pmSDF - LIS
2 stops21h 42mIberia
Wed 9/246:35 amLIS - SDF
2 stops21h 10mIberia
Deal found 2/19$963
This Orbitz deal was found by Cheapflights users on 2/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:43 pmSDF - LIS
2 stops21h 27mBritish Airways
Wed 9/248:45 pmLIS - SDF
2 stops31h 00mBritish Airways
Deal found 2/18$979
This AranGrant deal was found by Cheapflights users on 2/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/152:44 pmSDF - LIS
2 stops20h 11mLufthansa
Fri 4/2512:20 pmLIS - SDF
1 stop12h 27mLufthansa
Deal found 2/19$1,765

Find flights from Louisville to Portugal within your budget

Customize your flight search to find flights from Louisville to Portugal 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 February 20, 2025.

Fly from

Louisville

Fly to

Portugal

Route

Depart

Return

Price

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Fri 4/18

6:00 am-11:25 am

2 stops24h 25m

Lisbon Humberto Delgado

Fri 4/25

11:25 am-7:47 pm

2 stops37h 22m

$853

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Mon 5/12

8:58 pm-9:20 am

2 stops31h 22m

Lisbon Humberto Delgado

Thu 5/29

6:40 am-8:11 am

2 stops30h 31m

$943

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Wed 5/21

11:00 am-11:10 am

2 stops19h 10m

Lisbon Humberto Delgado

Mon 6/2

11:25 am-2:41 pm

2 stops32h 16m

$1,038

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Mon 5/5

7:25 am-9:05 am

1 stop20h 40m

Lisbon Humberto Delgado

Mon 5/12

11:05 am-5:55 pm

1 stop11h 50m

$1,160

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 4/15

2:44 pm-3:55 pm

2 stops20h 11m

Lisbon Humberto Delgado

Fri 4/25

12:20 pm-7:47 pm

1 stop12h 27m

$1,765

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Best time to book a flight from Louisville to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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.

Travel insights for flights from Louisville to Portugal

Get recent, data-driven insights about flights from Louisville to Portugal including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Louisville to Portugal (average of $612). Flying from Louisville to Portugal in June is currently the most expensive (average of $1,234). 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.

What is the cheapest time of day to fly from SDF to PT?

Find hourly flight availability from Louisville to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Portugal as you normally would.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated February 20, 2025.
United Airlines
7.4
Good
8,765 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines
7.4
Good
8,765 reviews
United Airlines
7.4
Good
8,765 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,765 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Air Canada
7.0
Good
8,748 reviews
United Airlines
7.4
Good
8,765 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Lufthansa
6.7
Okay
6,986 reviews
United Airlines
7.4
Good
8,765 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

  • What airport do you fly from for flights from Louisville to Portugal?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Portugal. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Portugal 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 Portugal?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Portugal (average of $612). Flying from Louisville to Portugal in June is currently the most expensive (average of $1,234). 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

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Top 4 airlines flying from Louisville to Portugal

Discover the top 4 airlines that operate flights from Louisville to Portugal. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$574Average$1,112FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$618Average$1,176FlexibilityNo cancel feeOn-time69%
DeltaCheapest$637Average$1,058FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$859Average$1,449FlexibilityNo cancel feeOn-time76%
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