What is the cheapest airline that flies from Kentucky to Portugal?

British Airways, Scandinavian Airlines, and Air Canada are the most popular carriers operating from Kentucky to Portugal

How long is the flight from Kentucky to Portugal?

Average flight duration from Kentucky to Portugal depends on which airport you fly into and out of. Flying from Louisville to Lisbon is 13h 20m on average, while flying from Lexington to Lisbon is 16h 40m on average. Lisbon is the most popular airport in Portugal.

When did momondo last update prices for flights from Kentucky to Portugal?

Prices for flights from Kentucky to Portugal are updated daily.

How many operators does momondo search for flights from Kentucky to Portugal?

As of December 2025, there are 9 operators available to choose from for flights from Kentucky to Portugal.

How old do you have to be to fly from Kentucky to Portugal?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to Portugal.

What documentation or ID do you need to fly to Portugal?

The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$355 Cheap Flights from Kentucky to Portugal in 2025/26

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Find the cheapest flights from Kentucky to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:09 pm - 8:10 am

BNA

LIS

13h 01m1 stop

6:10 am - 7:33 pm

LIS

BNA

19h 23m2 stops

$424Lufthansa

Fri, Jan 30 - Fri, Feb 6

1:50 pm - 8:10 am

SDF

LIS

13h 20m1 stop

5:00 am - 8:28 pm

LIS

SDF

20h 28m2 stops

$427Lufthansa

Sat, Jan 24 - Sat, Jan 31

3:45 pm - 9:20 am

BNA

LIS

11h 35m1 stop

10:15 am - 5:46 pm

LIS

BNA

13h 31m1 stop

$453Multiple Airlines

Mon, Jan 19 - Wed, Jan 28

6:00 am - 9:20 am

BNA

LIS

21h 20m2 stops

6:10 am - 9:42 pm

LIS

BNA

21h 32m2 stops

$459Multiple Airlines

Mon, Jan 19 - Wed, Jan 28

1:09 pm - 8:10 am

BNA

LIS

13h 01m1 stop

11:20 am - 7:33 pm

LIS

BNA

38h 13m2 stops

$486United Airlines

Fri, Jan 30 - Tue, Feb 3

8:30 am - 9:20 am

BNA

LIS

18h 50m2 stops

5:00 am - 7:04 pm

LIS

BNA

20h 04m2 stops

$488United Airlines

Thu, Jan 15 - Mon, Jan 19

12:07 pm - 10:30 am

CVG

OPO

17h 23m2 stops

5:00 am - 7:56 pm

OPO

CVG

19h 56m2 stops

$492KLM

Sun, Jan 18 - Wed, Jan 28

6:50 am - 9:20 am

CVG

LIS

21h 30m2 stops

11:20 am - 3:30 pm

LIS

CVG

33h 10m2 stops

$493Air Canada

Thu, Jan 22 - Mon, Jan 26

8:29 am - 9:20 am

SDF

LIS

19h 51m2 stops

11:20 am - 7:31 pm

LIS

SDF

37h 11m2 stops

$493Air Canada

Thu, Jan 15 - Mon, Jan 19

2:00 pm - 10:30 am

BNA

OPO

15h 30m2 stops

5:00 am - 8:35 pm

OPO

BNA

20h 35m2 stops

$498KLM

Thu, Mar 19 - Tue, Mar 24

United Airlines flights from Kentucky to Portugal

Our best United Airlines deals on Kentucky to Portugal flight tickets

United Airlines

Jan 30

BNA1:09 pmNashville Intl

13h 01m

1 stop

LIS8:10 amLisbon Humberto Delgado

Feb 3

LIS11:20 amLisbon Humberto Delgado

38h 13m

2 stops

BNA7:33 pmNashville Intl

$486

Find similar

United Airlines

Jan 30

CVG11:15 amCincinnati Cinci./N. Kentucky

15h 55m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 3

LIS11:20 amLisbon Humberto Delgado

38h 26m

3 stops

CVG8:46 pmCincinnati Cinci./N. Kentucky

$491

Find similar

United Airlines

Jan 7

TYS11:40 amKnoxville McGhee Tyson

40h 40m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 16

LIS11:20 amLisbon Humberto Delgado

37h 07m

2 stops

TYS7:27 pmKnoxville McGhee Tyson

$493

Find similar

Lufthansa flights from Kentucky to Portugal

Our best Lufthansa deals on Kentucky to Portugal flight tickets

Lufthansa

Jan 24

SDF1:50 pmLouisville Intl

13h 20m

1 stop

LIS8:10 amLisbon Humberto Delgado

Jan 31

LIS5:00 amLisbon Humberto Delgado

20h 28m

2 stops

SDF8:28 pmLouisville Intl

$427

Find similar

Lufthansa

Jan 8

SDF1:50 pmLouisville Intl

13h 20m

1 stop

LIS8:10 amLisbon Humberto Delgado

Jan 21

LIS10:15 amLisbon Humberto Delgado

14h 16m

1 stop

SDF7:31 pmLouisville Intl

$456

Find similar

Lufthansa

Jan 29

CVG11:26 amCincinnati Cinci./N. Kentucky

15h 44m

1 stop

LIS8:10 amLisbon Humberto Delgado

Feb 2

LIS8:20 amLisbon Humberto Delgado

18h 10m

2 stops

CVG9:30 pmCincinnati Cinci./N. Kentucky

$484

Find similar

Fly from

Fly to

Route

Depart

Return

Price

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Fri 1/30

1:09 pm-8:10 am

1 stop13h 01m

Lisbon Humberto Delgado

Fri 2/6

6:10 am-7:33 pm

2 stops19h 23m

$424

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Sat 1/24

1:50 pm-8:10 am

1 stop13h 20m

Lisbon Humberto Delgado

Sat 1/31

5:00 am-8:28 pm

2 stops20h 28m

$427

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 1/19

3:45 pm-9:20 am

1 stop11h 35m

Lisbon Humberto Delgado

Wed 1/28

10:15 am-5:46 pm

1 stop13h 31m

$453

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Mon 1/19

6:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Wed 1/28

6:10 am-9:42 pm

2 stops21h 32m

$459

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Fri 1/30

1:09 pm-8:10 am

1 stop13h 01m

Lisbon Humberto Delgado

Tue 2/3

11:20 am-7:33 pm

2 stops38h 13m

$486

NashvilleLisbon

BNA - LIS

BNALIS

Nashville Intl

Thu 1/15

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Mon 1/19

5:00 am-7:04 pm

2 stops20h 04m

$488

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 1/18

12:07 pm-10:30 am

2 stops17h 23m

Porto

Wed 1/28

5:00 am-7:56 pm

2 stops19h 56m

$492

CincinnatiLisbon

CVG - LIS

CVGLIS

Cincinnati Cinci./N. Kentucky

Thu 1/22

6:50 am-9:20 am

2 stops21h 30m

Lisbon Humberto Delgado

Mon 1/26

11:20 am-3:30 pm

2 stops33h 10m

$493

LouisvilleLisbon

SDF - LIS

SDFLIS

Louisville Intl

Thu 1/15

8:29 am-9:20 am

2 stops19h 51m

Lisbon Humberto Delgado

Mon 1/19

11:20 am-7:31 pm

2 stops37h 11m

$493

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 3/19

2:00 pm-10:30 am

2 stops15h 30m

Porto

Tue 3/24

5:00 am-8:35 pm

2 stops20h 35m

$498

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kentucky to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Kentucky is in January. Flight prices, which tend to average around $618, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Kentucky during December instead. Flights to Portugal in December, while not as cheap as those in January, still average around $673.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from Kentucky. The lowest ticket price found for a Wednesday departure recently was $958. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Thursday, with ticket prices averaging around $1,157.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Kentucky to Portugal during this time can be as low as $775. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,237 per ticket.

Can stopping save me money on Kentucky to Portugal flights?

You could potentially save up to 52% on your flight if you consider stops on a Kentucky to Portugal flight.

Cheap Kentucky to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kentucky to Portugal

Fastest flight time	9h 35m
Direct flights	None

The fastest flight from Kentucky to Portugal takes 9h 35m

There are no direct flights from Kentucky to Portugal. There are no popular flight routes from Kentucky to Portugal.

Search flight deals

When did momondo last update prices for flights from Kentucky to Portugal?
Prices for flights from Kentucky to Portugal are updated daily.
How many operators does momondo search for flights from Kentucky to Portugal?
As of December 2025, there are 9 operators available to choose from for flights from Kentucky to Portugal.
How old do you have to be to fly from Kentucky to Portugal?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to Portugal.
What documentation or ID do you need to fly to Portugal?
The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Kentucky to Portugal

Compare and see reviews for airlines that fly from Kentucky to Portugal with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $596	Free Cancellation	Rating 7.4 9,095 reviews		Search United Airlines flights
American Airlines	PriceFrom $604	Free Cancellation	Rating 7.2 11,050 reviews		Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kentucky to Portugal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kentucky to Portugal. momondo saves you time and could save you money on your trip.

Can I find flights from Kentucky to Portugal with flexible booking policies on momondo?

Yes. All flights to Portugal from Kentucky on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kentucky to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kentucky to Portugal.

I’m not ready to book a flight from Kentucky to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from Kentucky are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.