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$416+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — OPO
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
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 June 26, 2025.

Round-trip from

$644
(United Airlines)

One-way from

$416
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$1,522
From Kentucky to Porto
Search Deals
One-way flight from Kentucky to Porto
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Highest demand for flights based on searches. 23% potential increase in price ($330 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 26, 2025.

This United Airlines deal was found by Cheapflights users on 6/24. 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.
Fri 11/147:05 amLEX - OPO
2 stops21h 25mUnited Airlines
Tue 11/186:00 amOPO - LEX
2 stops19h 54mUnited Airlines
Deal found 6/24$644
This American Airlines deal was found by Cheapflights users on 6/26. 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.
Fri 10/3112:24 pmCVG - OPO
2 stops15h 16mAmerican Airlines
Wed 11/58:20 amOPO - CVG
2 stops17h 10mAmerican Airlines
Deal found 6/26$658
This Ovago deal was found by Cheapflights users on 6/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:35 pmCVG - OPO
1 stop16h 40mBritish Airways
Wed 11/512:25 pmOPO - CVG
2 stops32h 12mBritish Airways
Deal found 6/26$678
This Delta deal was found by Cheapflights users on 6/25. 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.
Fri 11/146:05 amTRI - OPO
2 stops23h 45mDelta
Tue 11/1811:45 amOPO - TRI
2 stops35h 26mDelta
Deal found 6/25$688
This United Airlines deal was found by Cheapflights users on 6/26. 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 8/183:30 pmBNA - OPO
1 stop12h 05mUnited Airlines
Tue 8/2612:50 pmOPO - BNA
2 stops31h 37mUnited Airlines
Deal found 6/26$725
This Mytrip deal was found by Cheapflights users on 6/25. 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 8/1611:23 amBNA - OPO
2 stops21h 37mMultiple Airlines
Tue 8/2610:00 pmOPO - BNA
3 stops31h 20mMultiple Airlines
Deal found 6/25$727
This Expedia deal was found by Cheapflights users on 6/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/178:15 amBNA - OPO
2 stops43h 20mAir Canada
Wed 8/276:00 amOPO - BNA
2 stops21h 03mAir Canada
Deal found 6/26$735
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/241:30 pmCVG - OPO
1 stop14h 50mUnited Airlines
Wed 10/16:00 amOPO - CVG
2 stops43h 12mUnited Airlines
Deal found 6/25$741
This Air Canada deal was found by Cheapflights users on 6/26. 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.
Wed 9/242:06 pmCVG - OPO
2 stops14h 14mAir Canada
Wed 10/16:00 amOPO - CVG
2 stops43h 12mAir Canada
Deal found 6/26$746
This Iberia deal was found by Cheapflights users on 6/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1110:01 amBNA - OPO
2 stops19h 39mIberia
Mon 8/188:35 pmOPO - BNA
2 stops26h 31mIberia
Deal found 6/26$818
This Gurufare deal was found by Cheapflights users on 6/25. 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 9/206:12 pmCVG - OPO
2 stops35h 08mLufthansa
Sat 10/1111:05 amOPO - CVG
2 stops41h 54mLufthansa
Deal found 6/25$871
This Air France deal was found by Cheapflights users on 6/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/236:20 pmCVG - OPO
1 stop16h 10mAir France
Wed 8/69:20 amOPO - CVG
2 stops18h 05mAir France
Deal found 6/25$946

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 June 26, 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

LexingtonPorto

LEX - OPO

LEXOPO

Lexington Blue Grass

Fri 11/14

7:05 am-9:30 am

2 stops21h 25m

Porto

Tue 11/18

6:00 am-8:54 pm

2 stops19h 54m

$644

BlountvillePorto

TRI - OPO

TRIOPO

Blountville Tri Cities TN/VA

Fri 11/14

6:05 am-10:50 am

2 stops23h 45m

Porto

Tue 11/18

11:45 am-6:11 pm

2 stops35h 26m

$688

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 8/18

3:30 pm-9:35 am

1 stop12h 05m

Porto

Tue 8/26

12:50 pm-2:27 pm

2 stops31h 37m

$725

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 8/16

11:23 am-3:00 pm

2 stops21h 37m

Porto

Tue 8/26

10:00 pm-11:20 pm

3 stops31h 20m

$727

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 8/17

8:15 am-9:35 am

2 stops43h 20m

Porto

Wed 8/27

6:00 am-9:03 pm

2 stops21h 03m

$735

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

1:30 pm-9:20 am

1 stop14h 50m

Porto

Wed 10/1

6:00 am-8:12 pm

2 stops43h 12m

$741

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

2:06 pm-9:20 am

2 stops14h 14m

Porto

Wed 10/1

6:00 am-8:12 pm

2 stops43h 12m

$746

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 8/11

10:01 am-11:40 am

2 stops19h 39m

Porto

Mon 8/18

8:35 pm-5:06 pm

2 stops26h 31m

$818

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 9/20

6:12 pm-10:20 am

2 stops35h 08m

Porto

Sat 10/11

11:05 am-11:59 pm

2 stops41h 54m

$871

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 7/23

6:20 pm-3:30 pm

1 stop16h 10m

Porto

Wed 8/6

9:20 am-10:25 pm

2 stops18h 05m

$946

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

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 June 26, 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.

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 June 26, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Kentucky to Porto to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,470 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,649 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,838 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 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.

  • 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 $1,038). 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

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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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$677Average$1,156FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,122Average$1,418FlexibilityNo cancel feeOn-time69%

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