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$790+ Cheap flights from Kailua-Kona (KOA) to Porto (OPO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — OPO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Kailua-Kona to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$790
(Air France)
From Kona Intl to Porto
Search Deals

Find flight deals from Kailua-Kona to Porto

Cheapest flights from Kailua-Kona to Porto
Explore the most affordable flight options available from Kailua-Kona to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Air France deal was found by Cheapflights users on 9/10. 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 10/159:30 pmKOA - OPO
2 stops31h 00mAir France
Mon 11/311:25 amOPO - KOA
2 stops42h 28mAir France
Deal found 9/10$790
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/151:05 pmKOA - OPO
3 stops33h 40mUnited Airlines
Mon 11/312:35 pmOPO - KOA
2 stops34h 25mUnited Airlines
Deal found 9/10$935
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/317:55 pmKOA - OPO
2 stops27h 35mUnited Airlines
Tue 11/412:35 pmOPO - KOA
2 stops34h 25mUnited Airlines
Deal found 9/10$1,617

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona 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 September 11, 2025.
Use the filters below to find and compare flights from Kailua-Kona to Porto that are best for you.

Fly from

Kailua-Kona

Fly to

Porto

Route

Depart

Return

Price

Kailua-KonaPorto

KOA - OPO

KOAOPO

Kona Intl

Wed 10/15

9:30 pm-3:30 pm

2 stops31h 00m

Porto

Mon 11/3

11:25 am-7:53 pm

2 stops42h 28m

$790

Kailua-KonaPorto

KOA - OPO

KOAOPO

Kona Intl

Wed 10/15

1:05 pm-9:45 am

3 stops33h 40m

Porto

Mon 11/3

12:35 pm-1:00 pm

2 stops34h 25m

$935

Kailua-KonaPorto

KOA - OPO

KOAOPO

Kona Intl

Fri 10/31

7:55 pm-9:30 am

2 stops27h 35m

Porto

Tue 11/4

12:35 pm-1:00 pm

2 stops34h 25m

$1,617

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Kailua-Kona to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Kailua-Kona 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.

Related info for your journey

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

  • How long is the flight from Kailua-Kona to Porto?

    Departing from Kailua-Kona to Porto will take you 31h. Airlines will cover a distance of 7727 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Kailua-Kona to Porto that include hotel bookings?

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

  • How can I find direct flights from Kailua-Kona to Porto?

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

  • Can I find deals for business class flights from Kailua-Kona to Porto?

    Yes. Cheapflights offers flight deals from Kailua-Kona 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 Kailua-Kona to Porto?

    Currently, January is the cheapest month in which you can book a flight from Kailua-Kona to Porto (average of $523). Flying from Kailua-Kona to Porto in June is currently the most expensive (average of $1,027). 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 Porto?

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

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