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

United Airlines, Lufthansa, and American 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 January 2026, 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.

$258 Cheap Flights from Kentucky to Porto in 2026

1 adult

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.

6:25 pm - 9:30 am

BNA

OPO

33h 05m

2 stops

12:35 pm - 9:43 pm

OPO

BNA

38h 08m

2 stops

$437United Airlines

Mon, Feb 23 - Tue, Mar 10

7:30 am - 9:30 am

BNA

OPO

20h 00m

2 stops

12:35 pm - 9:32 am

OPO

BNA

26h 57m

2 stops

$450United Airlines

Tue, Feb 24 - Tue, Mar 3

6:51 pm - 9:30 am

CVG

OPO

9h 39m

1 stop

12:35 pm - 10:32 am

OPO

CVG

26h 57m

2 stops

$450United Airlines

Wed, Feb 25 - Wed, Mar 4

12:30 pm - 9:30 am

BNA

OPO

15h 00m

1 stop

12:35 pm - 10:32 pm

OPO

BNA

15h 57m

1 stop

$464Lufthansa

Tue, Feb 24 - Tue, Mar 3

2:20 pm - 10:30 am

CVG

OPO

16h 10m

2 stops

6:15 am - 3:15 pm

OPO

CVG

14h 00m

1 stop

$469Delta

Mon, Mar 23 - Tue, Mar 31

7:04 am - 7:05 pm

BNA

OPO

30h 01m

2 stops

8:20 am - 10:39 pm

OPO

BNA

20h 19m

2 stops

$470British Airways

Wed, Apr 15 - Tue, Apr 21

11:23 am - 7:40 am

BNA

OPO

14h 17m

2 stops

8:20 am - 10:39 pm

OPO

BNA

20h 19m

2 stops

$478Multiple Airlines

Tue, Apr 21 - Tue, Apr 28

2:20 pm - 10:30 am

CVG

OPO

16h 10m

2 stops

6:15 am - 10:37 pm

OPO

CVG

21h 22m

2 stops

$480Delta

Mon, Mar 23 - Tue, Mar 31

6:51 pm - 9:30 am

CVG

OPO

9h 39m

1 stop

12:35 pm - 9:59 pm

OPO

CVG

14h 24m

1 stop

$490Lufthansa

Wed, Feb 25 - Wed, Mar 4

7:45 pm - 10:25 pm

CVG

OPO

22h 40m

2 stops

8:40 am - 8:29 pm

OPO

CVG

16h 49m

2 stops

$509Multiple Airlines

Mon, Mar 23 - Tue, Mar 31

Air France flights from Kentucky to Porto

Our best Air France deals on Kentucky to Porto flight tickets

Air France

May 5

CVG6:25 pmCincinnati Cinci./N. Kentucky

22h 40m

1 stop

OPO10:05 pmPorto

May 13

OPO5:55 amPorto

14h 10m

1 stop

CVG3:05 pmCincinnati Cinci./N. Kentucky

$523

Air France

Apr 20

CVG6:25 pmCincinnati Cinci./N. Kentucky

16h 00m

1 stop

OPO3:25 pmPorto

May 2

OPO4:20 pmPorto

27h 47m

1 stop

CVG3:07 pmCincinnati Cinci./N. Kentucky

$528

Air France

May 5

CVG6:25 pmCincinnati Cinci./N. Kentucky

22h 40m

1 stop

OPO10:05 pmPorto

May 13

OPO5:55 amPorto

16h 19m

2 stops

CVG5:14 pmCincinnati Cinci./N. Kentucky

$533

Delta flights from Kentucky to Porto

Our best Delta deals on Kentucky to Porto flight tickets

Delta

Mar 23

CVG2:20 pmCincinnati Cinci./N. Kentucky

16h 10m

2 stops

OPO10:30 amPorto

Mar 31

OPO6:15 amPorto

14h 00m

1 stop

CVG3:15 pmCincinnati Cinci./N. Kentucky

$469

Delta

Mar 23

CVG2:20 pmCincinnati Cinci./N. Kentucky

16h 10m

2 stops

OPO10:30 amPorto

Mar 31

OPO6:15 amPorto

21h 22m

2 stops

CVG10:37 pmCincinnati Cinci./N. Kentucky

$480

Delta

Mar 23

CVG2:20 pmCincinnati Cinci./N. Kentucky

16h 10m

2 stops

OPO10:30 amPorto

Apr 1

OPO4:20 pmPorto

27h 55m

1 stop

CVG3:15 pmCincinnati Cinci./N. Kentucky

$482

Fly from

Fly to

Route

Depart

Return

Price

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 2/23

6:25 pm-9:30 am

2 stops33h 05m

Porto

Tue 3/10

12:35 pm-9:43 pm

2 stops38h 08m

$437

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 2/24

7:30 am-9:30 am

2 stops20h 00m

Porto

Tue 3/3

12:35 pm-9:32 am

2 stops26h 57m

$450

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 2/25

6:51 pm-9:30 am

1 stop9h 39m

Porto

Wed 3/4

12:35 pm-10:32 am

2 stops26h 57m

$450

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 2/24

12:30 pm-9:30 am

1 stop15h 00m

Porto

Tue 3/3

12:35 pm-10:32 pm

1 stop15h 57m

$464

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/23

2:20 pm-10:30 am

2 stops16h 10m

Porto

Tue 3/31

6:15 am-3:15 pm

1 stop14h 00m

$469

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 4/15

7:04 am-7:05 pm

2 stops30h 01m

Porto

Tue 4/21

8:20 am-10:39 pm

2 stops20h 19m

$470

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 4/21

11:23 am-7:40 am

2 stops14h 17m

Porto

Tue 4/28

8:20 am-10:39 pm

2 stops20h 19m

$478

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/23

2:20 pm-10:30 am

2 stops16h 10m

Porto

Tue 3/31

6:15 am-10:37 pm

2 stops21h 22m

$480

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 2/25

6:51 pm-9:30 am

1 stop9h 39m

Porto

Wed 3/4

12:35 pm-9:59 pm

1 stop14h 24m

$490

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/23

7:45 pm-10:25 pm

2 stops22h 40m

Porto

Tue 3/31

8:40 am-8:29 pm

2 stops16h 49m

$509

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 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

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

Fastest flight time	9h 39m
Direct flights	None

The fastest flight from Kentucky to Porto takes 9h 39m

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 January 2026, 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

Braga

Matosinhos

Aveiro

Esposende

Lamego

Guimarães

Chaves

Espinho

Viseu

Pinhao

Arcos de Valdevez

Ponte de Lima

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.