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

United Airlines, Lufthansa, and Scandinavian Airlines are the most popular carriers operating from Kentucky to Porto

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

Prices for flights from Kentucky to Porto Airport refresh daily.

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

As of November 2025, there are 3 operators available to choose from for flights from Kentucky to Porto Airport.

How old do you have to be to fly from Kentucky to Porto Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$463 Cheap Flights from Kentucky to Porto in 2025/26

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0 bags

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Find the cheapest flights from Kentucky to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:56 pm - 3:15 pmLEX-OPO

21h 19m2 stops

4:15 pm - 8:14 pmOPO-LEX

31h 59m2 stops

$656Lufthansa

Find Deal

dom., mar. 8 - dom., mar. 15

1:56 pm - 9:30 amLEX-OPO

15h 34m2 stops

12:30 pm - 8:14 pmOPO-LEX

35h 44m2 stops

$657United Airlines

Find Deal

dom., mar. 8 - dom., mar. 15

7:10 am - 10:30 amLEX-OPO

22h 20m2 stops

11:15 am - 10:50 pmOPO-LEX

40h 35m2 stops

$692Delta

Find Deal

mié., dic. 3 - dom., dic. 7

12:52 pm - 3:25 pmTRI-OPO

21h 33m2 stops

11:15 am - 10:34 pmOPO-TRI

40h 19m2 stops

$698Delta

Find Deal

vie., dic. 5 - mar., dic. 9

10:12 am - 10:30 amTRI-OPO

19h 18m2 stops

11:15 am - 9:31 amOPO-TRI

27h 16m2 stops

$748KLM

Find Deal

vie., dic. 5 - mar., dic. 9

7:15 pm - 10:30 amCVG-OPO

34h 15m1 stop

4:10 pm - 5:09 pmOPO-CVG

29h 59m2 stops

$790KLM

Find Deal

jue., ene. 1 - jue., ene. 8

6:30 pm - 11:30 pmBNA-OPO

23h 00m2 stops

10:40 am - 9:13 amOPO-BNA

28h 33m2 stops

$826Multiple Airlines

Find Deal

mar., abr. 21 - mar., abr. 28

7:00 am - 10:25 amBNA-OPO

21h 25m2 stops

11:15 am - 11:00 pmOPO-BNA

17h 45m2 stops

$834Delta

Find Deal

jue., ene. 1 - jue., ene. 8

6:40 pm - 8:00 amBNA-OPO

31h 20m3 stops

7:05 am - 5:15 pmOPO-BNA

16h 10m2 stops

$872Multiple Airlines

Find Deal

mié., abr. 22 - dom., may. 3

8:13 pm - 10:10 amBNA-OPO

31h 57m1 stop

9:00 am - 7:15 pmOPO-BNA

16h 15m2 stops

$892TAP AIR PORTUGAL

Find Deal

mar., abr. 21 - mar., abr. 28

Delta flights from Kentucky to Porto

Our best Delta deals on Kentucky to Porto flight tickets

Delta

Dec 3

LEX10:33 amLexington Blue Grass

18h 57m

2 stops

OPO10:30 amPorto

Dec 7

OPO5:00 amPorto

16h 28m

2 stops

LEX4:28 pmLexington Blue Grass

$692

Find similar

Delta

Dec 5

TRI12:52 pmBlountville Tri Cities TN/VA

21h 33m

2 stops

OPO3:25 pmPorto

Dec 9

OPO11:15 amPorto

40h 19m

2 stops

TRI10:34 pmBlountville Tri Cities TN/VA

$698

Find similar

Delta

Jan 1

BNA7:00 amNashville Intl

21h 25m

2 stops

OPO10:25 amPorto

Jan 8

OPO11:15 amPorto

17h 45m

2 stops

BNA11:00 pmNashville Intl

$834

Find similar

KLM flights from Kentucky to Porto

Our best KLM deals on Kentucky to Porto flight tickets

KLM

Dec 5

TRI10:12 amBlountville Tri Cities TN/VA

19h 18m

2 stops

OPO10:30 amPorto

Dec 9

OPO11:15 amPorto

27h 16m

2 stops

TRI9:31 amBlountville Tri Cities TN/VA

$748

Find similar

KLM

Jan 1

CVG7:15 pmCincinnati Cinci./N. Kentucky

34h 15m

1 stop

OPO10:30 amPorto

Jan 8

OPO4:10 pmPorto

29h 59m

2 stops

CVG5:09 pmCincinnati Cinci./N. Kentucky

$790

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

dom. 3/8

1:56 pm-3:15 pm

2 stops21h 19m

Porto

dom. 3/15

4:15 pm-8:14 pm

2 stops31h 59m

$656

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

dom. 3/8

1:56 pm-9:30 am

2 stops15h 34m

Porto

dom. 3/15

12:30 pm-8:14 pm

2 stops35h 44m

$657

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

mié. 12/3

7:10 am-10:30 am

2 stops22h 20m

Porto

dom. 12/7

11:15 am-10:50 pm

2 stops40h 35m

$692

BlountvillePorto

TRI - OPO

TRIOPO

Blountville Tri Cities TN/VA

vie. 12/5

12:52 pm-3:25 pm

2 stops21h 33m

Porto

mar. 12/9

11:15 am-10:34 pm

2 stops40h 19m

$698

BlountvillePorto

TRI - OPO

TRIOPO

Blountville Tri Cities TN/VA

vie. 12/5

10:12 am-10:30 am

2 stops19h 18m

Porto

mar. 12/9

11:15 am-9:31 am

2 stops27h 16m

$748

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

jue. 1/1

7:15 pm-10:30 am

1 stop34h 15m

Porto

jue. 1/8

4:10 pm-5:09 pm

2 stops29h 59m

$790

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

mar. 4/21

6:30 pm-11:30 pm

2 stops23h 00m

Porto

mar. 4/28

10:40 am-9:13 am

2 stops28h 33m

$826

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

jue. 1/1

7:00 am-10:25 am

2 stops21h 25m

Porto

jue. 1/8

11:15 am-11:00 pm

2 stops17h 45m

$834

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

mié. 4/22

6:40 pm-8:00 am

3 stops31h 20m

Porto

dom. 5/3

7:05 am-5:15 pm

2 stops16h 10m

$872

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

mar. 4/21

8:13 pm-10:10 am

1 stop31h 57m

Porto

mar. 4/28

9:00 am-7:15 pm

2 stops16h 15m

$892

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kentucky to Porto

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

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

The cheapest day to depart on your flight to Porto is on a Thursday when prices can be found for as low as $1,000. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,567. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

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

In the evening is the cheapest time of day to fly from Kentucky to Porto when you can find flight prices for as low as $1,010. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,311 on average. Flights to Porto from Kentucky in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Kentucky to Porto flights?

You could potentially save up to 36% on your flight if you consider stops on a Kentucky to Porto flight.

Cheap Kentucky to Porto flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Kentucky to Porto Airport?
Prices for flights from Kentucky to Porto Airport refresh daily.
How many operators does momondo search for flights from Kentucky to Porto Airport?
As of November 2025, there are 3 operators available to choose from for flights from Kentucky to Porto Airport.
How old do you have to be to fly from Kentucky to Porto Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Vila Nova de Gaia

Coimbra

Aveiro

Matosinhos

Braga

Lamego

Guimarães

Esposende

Chaves

Espinho

Viseu

Ponte de Lima

Arcos de Valdevez

Pinhao

Curia

Penafiel

Mesao Frio

Mira

Baiao

Why use momondo?

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

Finding the right flight to Porto from Kentucky is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Kentucky to Porto flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Porto from Kentucky. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Kentucky to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.