HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$262+ Cheap flights from Kentucky to Porto (OPO)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — OPO
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kentucky to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kentucky to Porto

Cheapest flights from Kentucky to Porto
Explore the most affordable flight options available from Kentucky to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.

This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/212:30 pm
BNA
-
OPO
1 stop15h 00m
United Airlines
Wed 3/186:00 am
OPO
-
BNA
2 stops16h 23m
United Airlines
Deal found 1/31$477
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 3/104:58 pm
CVG
-
OPO
1 stop12h 32m
United Airlines
Tue 3/176:00 am
OPO
-
CVG
2 stops21h 46m
United Airlines
Deal found 2/1$488
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 4/2110:40 am
BNA
-
OPO
2 stops17h 05m
United Airlines
Thu 4/306:00 am
OPO
-
BNA
2 stops33h 39m
United Airlines
Deal found 2/2$491
This United Airlines deal was found by Cheapflights users on 2/2. 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 4/198:30 am
BNA
-
OPO
2 stops19h 15m
United Airlines
Thu 4/306:00 am
OPO
-
BNA
2 stops32h 53m
United Airlines
Deal found 2/2$493
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 3/108:35 am
CVG
-
OPO
2 stops20h 55m
United Airlines
Thu 3/196:00 am
OPO
-
CVG
2 stops21h 46m
United Airlines
Deal found 2/1$493
This KAYAK deal was found by Cheapflights users on 1/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:35 pm
BNA
-
OPO
2 stops22h 50m
Lufthansa
Tue 5/56:00 am
OPO
-
BNA
2 stops21h 52m
Lufthansa
Deal found 1/31$496
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 3/104:58 pm
CVG
-
OPO
1 stop12h 32m
United Airlines
Wed 3/1812:35 pm
OPO
-
CVG
1 stop13h 40m
United Airlines
Deal found 2/1$497
This KAYAK deal was found by Cheapflights users on 2/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:30 pm
BNA
-
OPO
2 stops34h 40m
Lufthansa
Wed 4/296:00 am
OPO
-
BNA
2 stops21h 59m
Lufthansa
Deal found 2/2$509
This KAYAK deal was found by Cheapflights users on 2/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:45 pm
CVG
-
OPO
2 stops22h 40m
Lufthansa
Thu 3/1912:30 pm
OPO
-
CVG
2 stops34h 19m
Lufthansa
Deal found 2/1$509
This KAYAK deal was found by Cheapflights users on 2/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:30 pm
BNA
-
OPO
2 stops34h 40m
Lufthansa
Fri 5/111:05 am
OPO
-
BNA
2 stops36h 29m
Lufthansa
Deal found 2/2$511
This KAYAK deal was found by Cheapflights users on 2/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:35 pm
BNA
-
OPO
2 stops22h 50m
Lufthansa
Mon 4/274:35 pm
OPO
-
BNA
2 stops35h 24m
Lufthansa
Deal found 2/2$517
This United Airlines deal was found by Cheapflights users on 2/1. 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 3/114:58 pm
CVG
-
OPO
2 stops18h 27m
United Airlines
Wed 3/1812:35 pm
OPO
-
CVG
1 stop13h 40m
United Airlines
Deal found 2/1$518

Find flight deals from Kentucky to Porto

Keep the following information in mind while searching for Kentucky to Porto flight deals. Data was last updated February 2, 2026.

Round-trip from

$477
(United Airlines)

One-way from

$262
(Iberia)
From Kentucky to Porto
Search Deals
One-way flight from Kentucky to Porto
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to Porto 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 February 2, 2026.
Use the filters below to find and compare flights from Kentucky to Porto that are best for you.

Fly from

Kentucky

Fly to

Porto

Route

Depart

Return

Price

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 3/2

1:30 pm-9:30 am

2 stops14h 00m

Porto

Wed 3/18

6:00 am-10:59 pm

2 stops21h 59m

$477

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/10

4:58 pm-9:30 am

1 stop12h 32m

Porto

Tue 3/17

6:00 am-11:46 pm

2 stops21h 46m

$488

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/10

4:58 pm-9:30 am

1 stop12h 32m

Porto

Wed 3/18

6:00 am-6:49 pm

2 stops16h 49m

$488

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/10

4:58 pm-9:30 am

1 stop12h 32m

Porto

Thu 3/19

6:00 am-8:13 pm

2 stops18h 13m

$488

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 4/21

10:40 am-9:45 am

2 stops17h 05m

Porto

Thu 4/30

6:00 am-9:39 am

2 stops33h 39m

$491

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 4/19

8:30 am-9:45 am

2 stops19h 15m

Porto

Thu 4/30

6:00 am-8:53 am

2 stops32h 53m

$493

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 4/20

8:30 am-9:45 am

2 stops19h 15m

Porto

Fri 5/1

6:00 am-9:52 pm

2 stops21h 52m

$493

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 4/21

10:00 am-9:45 am

2 stops17h 45m

Porto

Wed 4/29

6:00 am-6:56 pm

2 stops18h 56m

$493

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 3/11

7:45 pm-10:25 pm

2 stops22h 40m

Porto

Thu 3/19

12:30 pm-6:49 pm

2 stops34h 19m

$509

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 3/19

6:00 am-2:45 pm

2 stops28h 45m

Porto

Thu 3/26

6:00 am-11:53 pm

2 stops21h 53m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 46 results
1
2
3
...
5

Best time to book a flight from Kentucky to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Kentucky to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Kentucky?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Kentucky to Porto.

  • How long is the flight from Kentucky to Porto?

    There are many flights that can get you from Kentucky to Porto in 14h. Fly via United Airlines or Lufthansa to get the fastest option. The distance between Kentucky and Porto is about 4074 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Kentucky to Porto?

    Most travelers choose Cincinnati Cinci./N. Kentucky - Porto, Nashville Intl - Porto or Lexington Blue Grass - Porto when deciding on the best route from Kentucky to Porto.

  • Can I find deals for flights from Kentucky to Porto that include hotel bookings?

    Yes. In addition to deals on Kentucky to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kentucky to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to Porto.

  • Can I find deals for business class flights from Kentucky to Porto?

    Yes. Cheapflights offers flight deals from Kentucky to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kentucky to Porto

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
Dulles Intl to Lisbon flights
LaGuardia to Lisbon flights
Newark to Porto flights
O'Hare Intl to Lisbon flights
San Francisco to Lisbon flights
John F Kennedy Intl to Porto flights
Boston to Ponta Delgada flights
Miami to Lisbon flights
Baltimore to Lisbon flights
Reagan-National to Lisbon flights
Dallas/Fort Worth to Lisbon flights
Los Angeles to Lisbon flights
Boston to Porto flights
Philadelphia to Lisbon flights
LaGuardia to Porto flights
Newark to Ponta Delgada flights
Seattle to Lisbon flights
Atlanta to Lisbon flights
Denver to Lisbon flights
John F Kennedy Intl to Ponta Delgada flights
Love Field to Lisbon flights
Minneapolis to Lisbon flights
Sky Harbor Intl to Lisbon flights
Midway to Lisbon flights
Dulles Intl to Porto flights
Santa Ana to Lisbon flights
Charlotte to Lisbon flights
Reagan-National to Porto flights
Ontario to Lisbon flights
Hobby to Lisbon flights
Raleigh to Lisbon flights
Orlando to Lisbon flights
Fort Lauderdale to Lisbon flights
San Jose to Lisbon flights
Portland to Lisbon flights
Baltimore to Porto flights
LaGuardia to Ponta Delgada flights
Austin to Lisbon flights
Detroit to Lisbon flights
John F Kennedy Intl to Funchal flights
Newark to Funchal flights
Cleveland to Lisbon flights
O'Hare Intl to Porto flights
Tampa to Lisbon flights
Seattle to Porto flights
San Francisco to Porto flights
Newark to Faro flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights