Portugal

$298+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
May 4 — May 111
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Cheap 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 4, 2026.

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.
Sat 11/285:45 am
TYS
-
LIS
1 stop23h 30m
United Airlines
Wed 12/911:20 am
LIS
-
TYS
2 stops51h 40m
United Airlines
Deal found 4/1$711
This Iberia deal was found by Cheapflights users on 3/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:35 pm
BNA
-
LIS
1 stop20h 35m
Multiple Airlines
Wed 5/66:35 am
LIS
-
BNA
2 stops17h 17m
Multiple Airlines
Deal found 3/30$712
This United Airlines deal was found by Cheapflights users on 3/30. 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 10/138:30 am
BNA
-
LIS
1 stop20h 00m
United Airlines
Fri 11/135:00 am
LIS
-
BNA
2 stops20h 50m
United Airlines
Deal found 3/30$713
This United Airlines deal was found by Cheapflights users on 4/2. 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 11/295:45 am
TYS
-
LIS
1 stop23h 30m
United Airlines
Sun 12/65:00 am
LIS
-
TYS
2 stops34h 00m
United Airlines
Deal found 4/2$714
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.
Fri 11/66:22 pm
BNA
-
LIS
1 stop9h 53m
United Airlines
Fri 11/275:00 am
LIS
-
BNA
2 stops20h 15m
United Airlines
Deal found 4/1$714
This United Airlines deal was found by Cheapflights users on 4/2. 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 11/27:45 pm
CVG
-
LIS
1 stop9h 30m
United Airlines
Sun 11/85:00 am
LIS
-
CVG
2 stops44h 17m
United Airlines
Deal found 4/2$714
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:45 am
BNA
-
LIS
1 stop15h 15m
Delta
Sun 11/155:00 am
LIS
-
BNA
2 stops20h 40m
Delta
Deal found 3/31$716
This oojo deal was found by Cheapflights users on 4/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:59 pm
TYS
-
LIS
2 stops16h 11m
British Airways
Sun 11/2211:05 am
LIS
-
TYS
1 stop14h 59m
British Airways
Deal found 4/2$717
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 12/25:50 pm
LEX
-
LIS
2 stops34h 30m
United Airlines
Sun 12/65:00 am
LIS
-
LEX
2 stops40h 55m
United Airlines
Deal found 4/1$717
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 12/311:00 am
TRI
-
LIS
2 stops18h 15m
United Airlines
Mon 12/75:00 am
LIS
-
TRI
2 stops24h 14m
United Airlines
Deal found 3/30$719
This Delta deal was found by Cheapflights users on 4/2. 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.
Sat 11/1412:00 pm
TYS
-
LIS
2 stops16h 00m
Delta
Sun 11/225:00 am
LIS
-
TYS
2 stops23h 02m
Delta
Deal found 4/2$720
This Delta deal was found by Cheapflights users on 3/30. 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.
Mon 4/275:30 pm
BNA
-
LIS
2 stops18h 20m
Delta
Wed 5/65:00 am
LIS
-
BNA
2 stops20h 51m
Delta
Deal found 3/30$720

Find 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 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$712
(Iberia)

One-way from

$298
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$1,091
Provider with most accurate pricing for Louisville Intl-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Louisville Intl-Lisbon Humberto Delgado flights.
From Kentucky to Portugal
One-way flight from Kentucky to Portugal
Highest demand for flights based on searches. 13% potential increase in price ($135 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 4, 2026.
Use the filters below to find and compare flights from Kentucky to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 4/27

5:30 pm-5:50 pm

2 stops18h 20m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-7:51 pm

2 stops20h 51m

$720

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 4/27

11:00 am-10:45 am

1 stop17h 45m

Lisbon Humberto Delgado

Wed 5/6

10:00 am-8:17 pm

1 stop16h 17m

$727

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 5/4

7:11 am-8:00 am

1 stop18h 49m

Lisbon Humberto Delgado

Tue 5/19

12:45 pm-11:11 pm

2 stops16h 26m

$761

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 5/4

7:11 am-8:00 am

1 stop18h 49m

Lisbon Humberto Delgado

Tue 5/19

5:00 am-6:43 pm

2 stops19h 43m

$762

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 5/2

6:08 pm-6:45 pm

2 stops19h 37m

Lisbon Humberto Delgado

Fri 5/15

5:00 am-9:19 pm

2 stops21h 19m

$769

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Wed 4/15

5:54 pm-6:45 pm

2 stops19h 51m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-8:06 pm

2 stops20h 06m

$773

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 4/29

4:55 pm-2:35 pm

2 stops16h 40m

Lisbon Humberto Delgado

Sun 5/10

5:00 am-7:10 pm

2 stops19h 10m

$794

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Tue 5/12

5:10 pm-5:50 pm

2 stops18h 40m

Lisbon Humberto Delgado

Thu 5/21

5:00 am-4:43 pm

2 stops17h 43m

$811
Quickest round-trip

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Wed 9/23

3:45 pm-9:20 am

1 stop11h 35m

Lisbon Humberto Delgado

Wed 9/30

12:20 pm-6:10 pm

1 stop11h 50m

$817

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Tue 7/28

10:05 am-10:30 am

1 stop19h 25m

Lisbon Humberto Delgado

Fri 8/21

12:20 pm-9:15 am

2 stops25h 55m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $472). Flying from Kentucky to Portugal 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.

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.
  • How long is the flight from Kentucky to Portugal?

    There are many flights that can get you from Kentucky to Portugal in 17h 45m. Fly via Delta, KLM, or United Airlines to get the fastest option. The distance between Kentucky and Portugal is about 4120 mi. This flight may include one or multiple stops.

  • 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 $472). Flying from Kentucky to Portugal 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

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 2 airlines flying from Kentucky to Portugal

Discover the top 2 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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$555Average$883FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$603Average$870FlexibilityNo cancel feeOn-time71%

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