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$470+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — OPO
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Kentucky to Porto

Keep the following information in mind while searching for Kentucky to Porto flight deals. Data was last updated April 2, 2025.

Round-trip from

$726
(Air Canada)

One-way from

$470
(Kiwi.com)

Popular in

May

Cheapest in

December
From Kentucky to Porto
Search Deals
One-way flight from Kentucky to Porto
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals

Find 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 April 2, 2025.

This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:30 amBNA - OPO
2 stops24h 45mUnited Airlines
Thu 12/186:00 amOPO - BNA
2 stops41h 44mUnited Airlines
Deal found 4/1$659
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:15 pmCVG - OPO
1 stop11h 30mUnited Airlines
Wed 10/2212:35 pmOPO - CVG
1 stop12h 57mUnited Airlines
Deal found 4/1$700
This Air Canada deal was found by Cheapflights users on 4/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:30 pmCVG - OPO
2 stops25h 50mMultiple Airlines
Wed 5/146:15 amOPO - CVG
2 stops38h 32mMultiple Airlines
Deal found 4/1$726
This Lufthansa deal was found by Cheapflights users on 4/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:10 pmLEX - OPO
2 stops24h 10mLufthansa
Wed 5/146:15 amOPO - LEX
2 stops22h 31mLufthansa
Deal found 4/1$728
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:10 pmCVG - OPO
2 stops19h 25mDelta
Wed 5/76:20 amOPO - CVG
2 stops19h 23mDelta
Deal found 4/1$731
This Air Canada deal was found by Cheapflights users on 4/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:20 amBNA - OPO
2 stops26h 10mMultiple Airlines
Thu 5/226:00 amOPO - BNA
2 stops21h 04mMultiple Airlines
Deal found 4/1$766
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3011:54 amCVG - OPO
2 stops39h 31mAir France
Wed 5/74:20 pmOPO - CVG
1 stop27h 50mAir France
Deal found 4/1$787
This Gurufare deal was found by Cheapflights users on 4/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:41 pmCVG - OPO
2 stops33h 39mLufthansa
Sat 10/116:15 amOPO - CVG
2 stops22h 44mLufthansa
Deal found 4/1$810
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/264:10 pmBNA - OPO
2 stops41h 20mAir France
Sun 5/46:35 amOPO - BNA
2 stops22h 31mAir France
Deal found 4/1$849
This Booking.com deal was found by Cheapflights users on 4/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/287:00 amCVG - OPO
2 stops21h 35mAir Canada
Sun 8/1011:20 amOPO - CVG
2 stops52h 10mAir Canada
Deal found 4/1$856
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/292:32 pmCVG - OPO
2 stops16h 08mAmerican Airlines
Fri 8/88:15 amOPO - CVG
2 stops16h 14mAmerican Airlines
Deal found 3/31$860
This Lufthansa deal was found by Cheapflights users on 4/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/81:32 pmBNA - OPO
2 stops15h 43mLufthansa
Tue 4/226:00 amOPO - BNA
2 stops21h 25mLufthansa
Deal found 4/1$882

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 April 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 4/30

3:07 pm-10:00 pm

3 stops24h 53m

Porto

Wed 5/7

11:35 am-1:53 pm

2 stops32h 18m

$711

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 5/5

4:30 pm-11:20 pm

2 stops25h 50m

Porto

Wed 5/14

6:15 am-3:47 pm

2 stops38h 32m

$726

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Tue 5/6

6:10 pm-11:20 pm

2 stops24h 10m

Porto

Wed 5/14

6:15 am-11:46 pm

2 stops22h 31m

$728

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 4/30

7:10 pm-7:35 pm

2 stops19h 25m

Porto

Wed 5/7

6:20 am-8:43 pm

2 stops19h 23m

$731

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 4/30

11:54 am-8:25 am

2 stops39h 31m

Porto

Wed 5/7

4:20 pm-3:10 pm

1 stop27h 50m

$787

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 4/30

2:15 pm-3:30 pm

2 stops19h 15m

Porto

Wed 5/7

6:20 am-10:29 pm

2 stops22h 09m

$826

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 5/8

8:15 am-11:25 am

2 stops21h 10m

Porto

Wed 5/21

6:00 am-9:04 pm

2 stops21h 04m

$831

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 5/8

7:08 am-9:45 am

1 stop20h 37m

Porto

Wed 5/21

12:35 pm-4:49 pm

2 stops34h 14m

$855

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 5/20

7:45 pm-11:20 pm

2 stops22h 35m

Porto

Tue 5/27

6:15 am-11:53 pm

2 stops22h 38m

$873

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 4/8

1:32 pm-11:15 am

2 stops15h 43m

Porto

Tue 4/22

6:00 am-9:25 pm

2 stops21h 25m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 24 results
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2
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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 April 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kentucky to Porto as you normally would.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated April 2, 2025.
See what other customers who have flown with Delta, KLM and Air France from Kentucky to Porto have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,615 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,328 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Kentucky to Porto one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $552. Lufthansa flights start at $639 while deals on Air France start at $681 one-way.

  • 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.

  • What is the cheapest month to book a flight from Kentucky to Porto?

    Currently, January is the cheapest month in which you can book a flight from Kentucky to Porto (average of $523). Flying from Kentucky to Porto in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kentucky?

Book flights to Kentucky if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Alternative routes for Kentucky to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Kentucky to Porto

Discover the top 2 airlines that operate flights from Kentucky to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$677Average$1,148FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,015Average$1,352FlexibilityNo cancel feeOn-time69%

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