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$331+ Cheap flights from Kentucky to Portugal

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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Kentucky to Portugal

Keep the following information in mind while searching for Kentucky to Portugal flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$717
(American Airlines)

One-way from

$331
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,086
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 Kentucky to Portugal
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One-way flight from Kentucky to Portugal
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Highest demand for flights based on searches. 19% potential increase in price ($248 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Kentucky to Portugal

Cheapest flights from Kentucky to Portugal
Explore the most affordable flight options available from Kentucky to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This United deal was found by Cheapflights users on 4/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:00 amCVG - LIS
1 stop23h 15mMultiple Airlines
Thu 11/2011:00 amLIS - CVG
2 stops33h 57mMultiple Airlines
Deal found 4/16$628
This United Airlines deal was found by Cheapflights users on 4/15. 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 11/124:00 pmCVG - LIS
1 stop11h 10mUnited Airlines
Sun 11/165:00 amLIS - CVG
2 stops15h 57mUnited Airlines
Deal found 4/15$633
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 11/98:35 pmCVG - LIS
1 stop16h 10mAmerican Airlines
Thu 11/2010:55 amLIS - CVG
1 stop17h 08mAmerican Airlines
Deal found 4/16$642
This United Airlines deal was found by Cheapflights users on 4/17. 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 11/107:30 amLEX - LIS
2 stops21h 45mUnited Airlines
Thu 11/2010:15 amLIS - LEX
2 stops18h 26mUnited Airlines
Deal found 4/17$648
This British Airways deal was found by Cheapflights users on 4/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:09 pmLEX - LIS
2 stops20h 56mBritish Airways
Thu 11/2010:55 amLIS - LEX
1 stop11h 40mBritish Airways
Deal found 4/17$657
This KAYAK deal was found by Cheapflights users on 4/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2410:00 amBNA - LIS
1 stop16h 10mLufthansa
Mon 12/112:30 pmLIS - BNA
2 stops35h 35mLufthansa
Deal found 4/16$662
This United Airlines deal was found by Cheapflights users on 4/16. 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 11/1111:21 amSDF - LIS
2 stops16h 59mUnited Airlines
Sun 11/2311:00 amLIS - SDF
2 stops32h 47mUnited Airlines
Deal found 4/16$677
This Justfly.com deal was found by Cheapflights users on 4/16. 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.
Fri 10/317:30 amSDF - LIS
2 stops21h 50mAir Canada
Fri 11/711:00 amLIS - SDF
2 stops34h 49mAir Canada
Deal found 4/16$684
This KAYAK deal was found by Cheapflights users on 4/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:35 pmCVG - LIS
1 stop33h 35mBritish Airways
Sun 11/1610:45 amLIS - CVG
1 stop13h 05mBritish Airways
Deal found 4/15$688
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3110:20 amBNA - OPO
2 stops14h 25mMultiple Airlines
Sat 6/71:30 pmOPO - BNA
1 stop33h 45mMultiple Airlines
Deal found 4/16$733
This United deal was found by Cheapflights users on 4/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:20 amLEX - OPO
2 stops19h 20mMultiple Airlines
Sat 11/84:30 pmOPO - LEX
2 stops36h 11mMultiple Airlines
Deal found 4/17$736
This British Airways deal was found by Cheapflights users on 4/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:45 pmBNA - LIS
1 stop18h 10mBritish Airways
Mon 12/16:35 pmLIS - BNA
1 stop28h 00mBritish Airways
Deal found 4/16$745

Cheapflights Fare Finder

Customize your flight search to find flights from Kentucky 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 April 17, 2025.
Use the filters below to find and compare flights from Kentucky to Portugal that are best for you.

Fly from

Kentucky

Fly to

Portugal

Route

Depart

Return

Price

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 8/12

11:10 am-9:20 am

2 stops17h 10m

Lisbon Humberto Delgado

Tue 8/26

11:25 am-1:17 pm

2 stops30h 52m

$791

LexingtonLisbon

LEX - LIS

LEXLIS

Lexington Blue Grass

Tue 8/5

7:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Tue 8/19

11:25 am-4:55 pm

2 stops34h 30m

$791

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Tue 5/13

9:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Tue 5/20

11:25 am-1:14 pm

2 stops30h 49m

$793

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Tue 5/13

10:21 am-9:20 am

2 stops17h 59m

Lisbon Humberto Delgado

Thu 5/22

11:25 am-8:19 pm

1 stop13h 54m

$804

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 5/17

8:25 am-3:30 pm

2 stops25h 05m

Porto

Wed 5/28

6:05 pm-6:44 am

1 stop18h 39m

$808

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Sun 7/13

5:25 pm-1:55 pm

1 stop15h 30m

Lisbon Humberto Delgado

Sun 7/20

6:00 am-12:50 pm

2 stops35h 50m

$811

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 8/12

6:11 pm-9:05 am

1 stop9h 54m

Lisbon Humberto Delgado

Tue 8/26

6:35 am-6:24 pm

2 stops16h 49m

$812

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 5/3

4:30 pm-12:00 pm

2 stops38h 30m

Porto

Fri 5/16

6:00 am-11:37 pm

2 stops22h 37m

$812

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Sat 9/20

5:50 pm-6:55 am

2 stops32h 05m

Porto

Tue 10/7

6:15 am-8:48 pm

2 stops19h 33m

$814

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 5/5

11:10 am-7:35 am

2 stops15h 25m

Porto

Wed 5/14

8:15 am-9:07 pm

2 stops17h 52m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 49 results
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Best time to book a flight from Kentucky to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Kentucky to Portugal (average of $612). Flying from Kentucky to Portugal in June is currently the most expensive (average of $1,203). 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 KY to PT?

Find hourly flight availability from Kentucky 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kentucky 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 April 17, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air France from Kentucky to Portugal 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
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines to fly from Kentucky to Portugal one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $550. Users have also found prices from $577 and $606 on Air Canada and Scandinavian Airlines, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Kentucky to Portugal (average of $612). Flying from Kentucky to Portugal in June is currently the most expensive (average of $1,203). 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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Alternative routes for Kentucky to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Kentucky to Portugal

Discover the top 5 airlines that operate flights from Kentucky 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$701FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$590Average$1,039FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$618Average$1,219FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$1,069FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$859Average$1,776FlexibilityNo cancel feeOn-time76%

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