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$380+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$720
(Expedia)

One-way from

$380
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$937
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. 20% potential increase in price ($268 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 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 2, 2025.

This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:50 amBNA - LIS
1 stop15h 25mMultiple Airlines
Tue 12/1611:10 amLIS - BNA
1 stop11h 38mMultiple Airlines
Deal found 4/1$607
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/1$625
This United deal was found by Cheapflights users on 4/1. 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 11/97:30 amLEX - LIS
2 stops35h 00mUnited Airlines
Sun 11/2311:00 amLIS - LEX
2 stops38h 23mUnited Airlines
Deal found 4/1$646
This United deal was found by Cheapflights users on 4/1. 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.
Thu 12/118:30 amBNA - OPO
2 stops24h 45mUnited Airlines
Thu 12/186:00 amOPO - BNA
2 stops41h 44mUnited Airlines
Deal found 4/1$659
This Gurufare deal was found by Cheapflights users on 4/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:09 pmLEX - LIS
1 stop11h 46mBritish Airways
Sun 11/2311:05 amLIS - LEX
1 stop11h 30mBritish Airways
Deal found 4/1$665
This Gurufare deal was found by Cheapflights users on 3/31. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:17 pmSDF - LIS
2 stops17h 28mBritish Airways
Sun 11/238:45 pmLIS - SDF
2 stops27h 13mBritish Airways
Deal found 3/31$676
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:30 amSDF - LIS
2 stops21h 50mMultiple Airlines
Fri 11/75:00 amLIS - SDF
2 stops22h 09mMultiple Airlines
Deal found 4/1$678
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Sat 11/810:25 amBNA - LIS
2 stops16h 55mAir Canada
Sat 11/1511:00 amLIS - BNA
2 stops28h 29mAir Canada
Deal found 4/1$690
This United deal was found by Cheapflights users on 4/1. 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.
Tue 10/75:15 pmCVG - OPO
1 stop11h 30mUnited Airlines
Wed 10/2212:35 pmOPO - CVG
1 stop12h 57mUnited Airlines
Deal found 4/1$700
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:35 pmCVG - LIS
1 stop12h 20mBritish Airways
Sun 11/167:05 amLIS - CVG
1 stop16h 45mBritish Airways
Deal found 4/1$706
This United deal was found by Cheapflights users on 4/1. 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.
Sat 11/88:30 amBNA - LIS
2 stops18h 50mUnited Airlines
Sat 11/1511:00 amLIS - BNA
3 stops33h 11mUnited Airlines
Deal found 4/1$717
This Expedia deal was found by Cheapflights users on 4/1. 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.
Tue 5/610:08 amBNA - LIS
2 stops31h 17mIberia
Tue 11/1812:30 pmLIS - BNA
2 stops17h 29mIberia
Deal found 4/1$720

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 2, 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

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 4/30

3:07 pm-10:00 pm

3 stops24h 53m

Porto

Wed 5/7

11:35 am-1:53 pm

2 stops32h 18m

$711

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Tue 5/6

10:08 am-11:25 pm

2 stops31h 17m

Lisbon Humberto Delgado

Tue 11/18

12:30 pm-11:59 pm

2 stops17h 29m

$720

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Tue 5/6

7:16 pm-11:00 pm

2 stops21h 44m

Lisbon Humberto Delgado

Tue 11/18

7:05 am-4:35 pm

1 stop15h 30m

$721

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 5/5

4:30 pm-11:20 pm

2 stops25h 50m

Porto

Wed 5/14

6:15 am-3:47 pm

2 stops38h 32m

$726

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Tue 5/6

6:10 pm-11:20 pm

2 stops24h 10m

Porto

Wed 5/14

6:15 am-11:46 pm

2 stops22h 31m

$728

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 4/30

7:10 pm-7:35 pm

2 stops19h 25m

Porto

Wed 5/7

6:20 am-8:43 pm

2 stops19h 23m

$731

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 5/12

10:20 am-10:50 am

1 stop19h 30m

Lisbon Humberto Delgado

Tue 5/20

8:05 pm-3:33 pm

2 stops48h 28m

$741

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Thu 5/8

6:00 am-5:40 am

1 stop17h 40m

Lisbon Humberto Delgado

Mon 5/12

9:05 pm-6:44 am

2 stops39h 39m

$748

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Tue 8/5

1:30 pm-9:20 am

1 stop14h 50m

Lisbon Humberto Delgado

Tue 8/19

11:25 am-11:35 am

2 stops29h 10m

$784

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 4/30

11:54 am-8:25 am

2 stops39h 31m

Porto

Wed 5/7

4:20 pm-3:10 pm

1 stop27h 50m

$787

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 58 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 2, 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 2, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and SWISS 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
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
1,572 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
8,615 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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 Scandinavian Airlines. According to our data, you can fly for as low as $544. Users have also found prices from $552 and $569 on United Airlines and Air Canada, 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$574Average$1,045FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$577Average$701FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$618Average$1,192FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$1,148FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$859Average$1,776FlexibilityNo cancel feeOn-time76%

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