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$360+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — OPO
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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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 December 2, 2025.

This Travelocity deal was found by Cheapflights users on 11/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:28 amBNA - OPO
2 stops14h 12mIberia
Fri 1/168:20 amOPO - BNA
2 stops19h 18mIberia
Deal found 11/30$460
This American Airlines deal was found by Cheapflights users on 11/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:50 pmBNA - OPO
2 stops17h 10mAmerican Airlines
Tue 12/238:20 amOPO - BNA
2 stops21h 33mAmerican Airlines
Deal found 11/30$634
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:25 pmBNA - OPO
2 stops15h 40mMultiple Airlines
Fri 1/162:20 pmOPO - BNA
3 stops30h 45mMultiple Airlines
Deal found 11/30$921
This oojo deal was found by Cheapflights users on 11/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amBNA - OPO
2 stops22h 00mTAP AIR PORTUGAL
Mon 12/88:00 pmOPO - BNA
2 stops43h 01mTAP AIR PORTUGAL
Deal found 11/30$1,166
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:30 pmBNA - OPO
3 stops35h 30mMultiple Airlines
Mon 12/812:30 pmOPO - BNA
3 stops36h 00mMultiple Airlines
Deal found 11/30$1,181
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:30 pmBNA - OPO
2 stops23h 55mMultiple Airlines
Thu 12/46:25 amOPO - BNA
2 stops18h 05mMultiple Airlines
Deal found 11/30$1,319

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 December 2, 2025.

Round-trip from

$460
(Expedia)

One-way from

$360
(Kiwi.com)
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 December 2, 2025.
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

Wed 1/14

12:00 pm-7:40 am

2 stops13h 40m

Porto

Wed 1/21

8:20 am-11:19 pm

2 stops20h 59m

$460

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 1/14

9:30 am-7:40 am

2 stops17h 10m

Porto

Wed 1/21

8:40 pm-8:16 pm

2 stops28h 36m

$460

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 1/18

2:26 pm-8:00 pm

2 stops24h 34m

Porto

Wed 1/28

8:20 am-9:50 pm

2 stops18h 30m

$460

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 1/25

2:54 pm-12:05 pm

2 stops16h 11m

Porto

Mon 2/9

12:05 pm-8:46 pm

2 stops37h 41m

$462

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 1/25

8:50 pm-4:40 pm

1 stop14h 50m

Porto

Mon 2/9

8:40 pm-8:01 pm

2 stops28h 21m

$473

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 1/18

7:40 am-10:30 am

2 stops21h 50m

Porto

Wed 1/28

5:00 am-10:35 pm

2 stops22h 35m

$479

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Fri 2/6

2:25 pm-12:05 pm

2 stops15h 40m

Porto

Tue 2/10

6:00 am-9:42 pm

2 stops21h 42m

$483

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Fri 2/6

1:52 pm-4:00 pm

2 stops20h 08m

Porto

Tue 2/10

8:20 am-11:19 pm

2 stops20h 59m

$485

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 1/15

1:52 pm-11:45 am

2 stops15h 53m

Porto

Thu 1/22

12:25 pm-11:19 pm

2 stops16h 54m

$485

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Fri 2/6

10:37 am-10:30 am

2 stops18h 53m

Porto

Tue 2/10

11:25 am-9:41 pm

2 stops15h 16m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 36 results
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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

What is the cheapest time of day to fly from KY to OPO?

Find hourly flight availability from Kentucky to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 2, 2025.

It’s typically best to fly out from Kentucky to Porto in the evening. Doing so could potentially save you 30% on the flight price compared to flying at noon, which is usually more expensive.

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 13h 40m. Fly via Iberia, British Airways, or Delta 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 Nashville Intl - Porto, Cincinnati Cinci./N. Kentucky - 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
Aveiro
Arcos de Valdevez
Coimbra
Vila Nova de Gaia

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