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

American Airlines, British Airways, and United Airlines are the most popular carriers operating from Kentucky to Portugal

What airlines fly to Portugal?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Portugal from Kentucky according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 3 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

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 14h 30m on average, while flying from Lexington to Lisbon is 16h 07m 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 October 2026, there are 3 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.

$321 Cheap Flights from Kentucky to Portugal in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kentucky to Portugal

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 10m2 stops Chicago O'Hare Intl Newark

5:00 am - 5:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 20m2 stops Frankfurt am Main Chicago O'Hare Intl

$706Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

5:00 am - 5:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 20m2 stops Frankfurt am Main Chicago O'Hare Intl

$706Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

1:59 pm - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

13h 11m2 stops Chicago O'Hare Intl Newark

5:00 am - 6:47 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 47m2 stops Frankfurt am Main Chicago O'Hare Intl

$713United Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

5:00 am - 6:47 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 47m2 stops Frankfurt am Main Chicago O'Hare Intl

$713United Airlines

Sun, Dec 6 - Tue, Dec 22

10:25 am - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 40m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

5:00 am - 10:39 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

22h 39m2 stops Frankfurt am Main Chicago O'Hare Intl

$713Multiple Airlines

Sun, Dec 6 - Tue, Dec 22

2:25 pm - 10:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Washington, D.C. Dulles Intl

12:20 pm - 7:20 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

12h 00m1 stop Washington, D.C. Dulles Intl

$719United Airlines

Sun, Dec 6 - Tue, Dec 22

10:15 am - 11:25 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 10m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:00 am - 9:41 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

21h 41m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$780Delta

Sun, Feb 28 - Sat, Mar 6

7:45 am - 9:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Philadelphia

11:05 am - 11:13 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 08m1 stop Philadelphia

$788American Airlines

Sun, Feb 28 - Sat, Mar 6

7:45 am - 9:05 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Philadelphia

11:05 am - 11:13 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

17h 08m1 stop Philadelphia

$788American Airlines

Sun, Feb 28 - Sun, Mar 7

1:30 pm - 9:00 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 30m1 stop Boston Logan Intl

11:15 am - 8:59 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

14h 44m2 stops Boston Logan Intl New York LaGuardia

$829Delta

Mon, Nov 9 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

10:16 am - 4:05 pmSDF Louisville Intl-LIS Lisbon Humberto Delgado

25h 49m2 stops Chicago O'Hare Intl Madrid Barajas

6:30 am - 9:36 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

20h 06m2 stops Madrid Barajas Chicago O'Hare Intl

$852Iberia

Fri, Oct 30 - Wed, Nov 4

1:45 pm - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

14h 25m1 stop Newark

5:00 am - 10:30 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

22h 30m2 stops Frankfurt am Main Chicago O'Hare Intl

$862United Airlines

Fri, Oct 30 - Wed, Nov 4

9:55 am - 8:10 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

18h 15m2 stops Washington, D.C. Dulles Intl Newark

5:00 am - 6:32 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 32m2 stops Frankfurt am Main Chicago O'Hare Intl

$866United Airlines

Fri, Oct 30 - Wed, Nov 4

2:11 pm - 10:20 amSDF Louisville Intl-LIS Lisbon Humberto Delgado

16h 09m1 stop Washington, D.C. Dulles Intl

10:15 am - 11:30 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

18h 15m1 stop Newark

$874United Airlines

Fri, Oct 30 - Wed, Nov 4

7:00 am - 3:20 pmSDF Louisville Intl-LIS Lisbon Humberto Delgado

28h 20m3 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl Toulouse Blagnac

9:45 am - 1:35 pmLIS Lisbon Humberto Delgado-SDF Louisville Intl

32h 50m3 stops Paris Orly Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,765Multiple Airlines

Fri, Oct 30 - Wed, Nov 4

1:04 pm - 11:25 amLEX Lexington Blue Grass-LIS Lisbon Humberto Delgado

18h 21m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:30 am - 11:58 pmLIS Lisbon Humberto Delgado-LEX Lexington Blue Grass

23h 28m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$2,433Delta

Tue, Oct 27 - Sun, Nov 8

5:30 am - 9:20 amLEX Lexington Blue Grass-LIS Lisbon Humberto Delgado

23h 50m2 stops Chicago O'Hare Intl Toronto Pearson Intl

8:35 am - 11:54 pmLIS Lisbon Humberto Delgado-LEX Lexington Blue Grass

20h 19m2 stops London Heathrow Chicago O'Hare Intl

$2,438United Airlines

Tue, Oct 27 - Sun, Nov 8

4:59 pm - 9:05 amLEX Lexington Blue Grass-LIS Lisbon Humberto Delgado

12h 06m1 stop Philadelphia

10:40 am - 6:43 pmLIS Lisbon Humberto Delgado-LEX Lexington Blue Grass

37h 03m2 stops London Heathrow Charlotte Douglas

$2,501British Airways

Tue, Oct 27 - Sun, Nov 8

4:59 pm - 2:50 pmLEX Lexington Blue Grass-LIS Lisbon Humberto Delgado

17h 51m2 stops Philadelphia London Heathrow

10:40 am - 6:43 pmLIS Lisbon Humberto Delgado-LEX Lexington Blue Grass

37h 03m2 stops London Heathrow Charlotte Douglas

$2,520British Airways

Tue, Oct 27 - Sun, Nov 8

3:54 pm - 7:20 pmLEX Lexington Blue Grass-LIS Lisbon Humberto Delgado

47h 26m3 stops Dallas/Fort Worth Hong Kong Intl London Heathrow

9:50 am - 10:36 pmLIS Lisbon Humberto Delgado-LEX Lexington Blue Grass

41h 46m3 stops London Heathrow Hong Kong Intl Dallas/Fort Worth

$42,252Multiple Airlines

Tue, Oct 27 - Sun, Nov 8

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United Airlines flights from Kentucky to Portugal

Our best United Airlines deals on Kentucky to Portugal flight tickets

United Airlines

Dec 6

SDF2:25 pmLouisville Intl

14h 40m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 22

LIS5:00 amLisbon Humberto Delgado

18h 47m

2 stops

SDF6:47 pmLouisville Intl

$713

United Airlines

Dec 6

SDF2:25 pmLouisville Intl

14h 40m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 22

LIS12:20 pmLisbon Humberto Delgado

12h 00m

1 stop

SDF7:20 pmLouisville Intl

$719

United Airlines

Dec 6

SDF2:25 pmLouisville Intl

14h 40m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 22

LIS12:20 pmLisbon Humberto Delgado

12h 00m

1 stop

SDF7:20 pmLouisville Intl

$731

Lufthansa flights from Kentucky to Portugal

Our best Lufthansa deals on Kentucky to Portugal flight tickets

Lufthansa

Mar 2

LEX6:09 pmLexington Blue Grass

24h 21m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Mar 10

LIS5:00 amLisbon Humberto Delgado

23h 52m

2 stops

LEX11:52 pmLexington Blue Grass

$720

Lufthansa

Mar 2

LEX6:09 pmLexington Blue Grass

24h 21m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Mar 10

LIS6:00 amLisbon Humberto Delgado

22h 52m

2 stops

LEX11:52 pmLexington Blue Grass

$721

Lufthansa

Mar 2

LEX6:09 pmLexington Blue Grass

24h 21m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Mar 10

LIS6:00 amLisbon Humberto Delgado

22h 52m

2 stops

LEX11:52 pmLexington Blue Grass

$722

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

9:00 am-8:10 am

2 stops18h 10m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-5:20 pm

2 stops17h 20m

$706

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-5:20 pm

2 stops17h 20m

$706

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

1:59 pm-8:10 am

2 stops13h 11m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-6:47 pm

2 stops18h 47m

$713

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-6:47 pm

2 stops18h 47m

$713

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

10:25 am-10:05 am

2 stops18h 40m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-10:39 pm

2 stops22h 39m

$713

Quickest round-trip

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 12/6

2:25 pm-10:05 am

1 stop14h 40m

Lisbon Humberto Delgado

Tue 12/22

12:20 pm-7:20 pm

1 stop12h 00m

$719

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 2/28

10:15 am-11:25 am

2 stops20h 10m

Lisbon Humberto Delgado

Sat 3/6

5:00 am-9:41 pm

2 stops21h 41m

$780

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 2/28

7:45 am-9:05 am

1 stop20h 20m

Lisbon Humberto Delgado

Sat 3/6

11:05 am-11:13 pm

1 stop17h 08m

$788

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Sun 2/28

7:45 am-9:05 am

1 stop20h 20m

Lisbon Humberto Delgado

Sun 3/7

11:05 am-11:13 pm

1 stop17h 08m

$788

LouisvilleLisbon

SDF Louisville Intl - LIS Lisbon Humberto Delgado

SDFLIS

Louisville Intl

Mon 11/9

1:30 pm-9:00 am

1 stop14h 30m

Lisbon Humberto Delgado

Wed 11/18

11:15 am-8:59 pm

2 stops14h 44m

$829

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 $554, 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 $704.

Can stopping save me money on Kentucky to Portugal flights?

You could potentially save up to 30% 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

Best Price Found	$321
Fastest flight time	11h 00m
Direct flights	None

The best one-way flight to Portugal from Kentucky in the past 72 hours is $321. The best round-trip flight deal from Kentucky to Portugal found on momondo in the last 72 hours is $706.

The fastest flight from Kentucky to Portugal takes 11h 00m

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

Search flight deals

Frequently asked questions about flying from Kentucky to 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 October 2026, there are 3 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
American Airlines	PriceFrom $556	Free Cancellation	Rating 7.0 12,192 reviews	Search American Airlines flights
Delta	PriceFrom $587	Free Cancellation	Rating 7.8 8,678 reviews	Search Delta flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.3 10,432 reviews	Search United 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.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $451

Flights to Portofrom $400

Flights to Funchalfrom $405

Flights to Farofrom $569

Flights to Ponta Delgadafrom $549

Flights to Lajesfrom $546

Flights to Hortafrom $561

Flights to Pico Islandfrom $788

Flights to Porto Santofrom $945

Flights to Velasfrom $583

Cheap flights from Kentucky to Portugal from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to Portugal departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Kentucky to Portugal

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Cheap last minute flights

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United Airlines flights from Kentucky to Portugal

Our best United Airlines deals on Kentucky to Portugal flight tickets

Lufthansa flights from Kentucky to Portugal

Our best Lufthansa deals on Kentucky to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Kentucky to Portugal

What is the cheapest month to fly to Portugal?

Can stopping save me money on Kentucky to Portugal flights?

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

What airlines fly to Portugal?

How long is the flight from Kentucky to Portugal?

Cheap Kentucky to Portugal flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Kentucky to Portugal

Best airlines flying from Kentucky to Portugal

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

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Kentucky flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year