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$446+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — OPO
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 17, 2025.

Round-trip from

$717
(American Airlines)

One-way from

$446
(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. 19% potential increase in price ($255 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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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 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/16. 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.
Sat 5/3110:20 amBNA - OPO
2 stops14h 25mMultiple Airlines
Sat 6/71:30 pmOPO - BNA
1 stop33h 45mMultiple Airlines
Deal found 4/16$733
This United deal was found by Cheapflights users on 4/17. 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.
Sun 11/211:20 amLEX - OPO
2 stops19h 20mMultiple Airlines
Sat 11/84:30 pmOPO - LEX
2 stops36h 11mMultiple Airlines
Deal found 4/17$736
This United Airlines deal was found by Cheapflights users on 4/16. 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 9/235:41 pmCVG - OPO
1 stop11h 04mUnited Airlines
Tue 9/3012:50 pmOPO - CVG
2 stops29h 19mUnited Airlines
Deal found 4/16$779
This United deal was found by Cheapflights users on 4/16. 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.
Sat 9/207:36 pmCVG - OPO
2 stops30h 19mMultiple Airlines
Tue 9/3012:50 pmOPO - CVG
2 stops30h 29mMultiple Airlines
Deal found 4/16$784
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:05 amCVG - OPO
2 stops22h 55mScandinavian Airlines
Wed 10/2211:50 amOPO - CVG
2 stops41h 05mScandinavian Airlines
Deal found 4/17$787
This Delta deal was found by Cheapflights users on 4/16. 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.
Mon 4/286:10 pmBNA - OPO
2 stops15h 20mDelta
Mon 5/126:30 amOPO - BNA
2 stops20h 43mDelta
Deal found 4/16$789
This Air Canada deal was found by Cheapflights users on 4/17. 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.
Sun 9/214:30 pmCVG - OPO
2 stops36h 05mAir Canada
Thu 10/96:00 amOPO - CVG
2 stops43h 12mAir Canada
Deal found 4/17$797
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 5/511:10 amCVG - OPO
2 stops15h 25mAmerican Airlines
Wed 5/148:15 amOPO - CVG
2 stops17h 52mAmerican Airlines
Deal found 4/17$817
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:30 pmCVG - OPO
1 stop16h 00mKLM
Wed 10/226:15 amOPO - CVG
2 stops18h 21mKLM
Deal found 4/17$824
This SWISS deal was found by Cheapflights users on 4/17. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/212:06 pmCVG - OPO
2 stops23h 09mSWISS
Mon 10/612:50 pmOPO - CVG
2 stops33h 00mSWISS
Deal found 4/17$826
This Delta deal was found by Cheapflights users on 4/17. 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.
Sun 9/213:30 pmCVG - OPO
2 stops19h 00mDelta
Wed 10/84:20 pmOPO - CVG
1 stop27h 55mDelta
Deal found 4/17$837
This Lufthansa deal was found by Cheapflights users on 4/17. 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.
Sat 9/205:50 pmLEX - OPO
2 stops35h 30mLufthansa
Mon 10/66:15 amOPO - LEX
2 stops46h 42mLufthansa
Deal found 4/17$846

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 17, 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

Sat 5/17

8:25 am-3:30 pm

2 stops25h 05m

Porto

Wed 5/28

6:05 pm-6:44 am

1 stop18h 39m

$808

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 5/3

4:30 pm-12:00 pm

2 stops38h 30m

Porto

Fri 5/16

6:00 am-11:37 pm

2 stops22h 37m

$812

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Sat 9/20

5:50 pm-6:55 am

2 stops32h 05m

Porto

Tue 10/7

6:15 am-8:48 pm

2 stops19h 33m

$814

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 5/5

11:10 am-7:35 am

2 stops15h 25m

Porto

Wed 5/14

8:15 am-9:07 pm

2 stops17h 52m

$817

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Sat 9/20

5:50 pm-10:20 am

2 stops35h 30m

Porto

Mon 10/6

6:15 am-11:57 pm

2 stops46h 42m

$846

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Sat 9/20

5:50 pm-9:45 am

2 stops34h 55m

Porto

Thu 10/9

6:00 am-5:15 pm

2 stops40h 15m

$848

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 5/3

9:00 am-9:45 am

2 stops19h 45m

Porto

Fri 5/16

12:35 pm-11:37 pm

1 stop16h 02m

$857

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Sun 9/21

6:29 pm-10:15 pm

2 stops22h 46m

Porto

Tue 10/7

6:15 am-9:36 pm

2 stops20h 21m

$924

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 5/1

2:10 pm-6:30 pm

2 stops23h 20m

Porto

Sun 5/11

8:40 am-8:38 pm

2 stops16h 58m

$946

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Fri 9/19

7:45 pm-6:10 pm

2 stops17h 25m

Porto

Tue 10/7

6:15 am-9:36 pm

2 stops20h 21m

$1,039

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 23 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 April 17, 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 17, 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
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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.
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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 $604. Scandinavian Airlines flights start at $606 while deals on British Airways start at $815 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$677Average$1,148FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,015Average$1,418FlexibilityNo cancel feeOn-time69%

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