$719 Cheap Flights from Porto (OPO) to Kailua-Kona (KOA)

View $719 flight on Sun, Mar 1, 2026Opens in a new window

Popular airlines from Porto Airport (OPO) to Kona Intl. Airport (KOA)

Cheap Flights from Porto to Kailua-Kona (OPO-KOA)

Prices were available within the past 7 days and start at $719 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Porto (OPO) to Kailua-Kona (KOA)
Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Kona Intl.
Distance
7733 mi

Porto to Kailua-Kona Flights

The cheapest times to fly from Porto to Kailua-Kona

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Porto to Kailua-Kona are during the month of . You can find some of the cheapest flights from Porto to Kailua-Kona with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Porto to Kailua-Kona: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Porto to Kailua-Kona

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Porto to Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from $719 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Porto to Kailua-Kona flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Porto to Kailua-Kona airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA) cost?
Snag a cheap one-way flight from $719 or cheap return flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA)?
is the least expensive month to fly from OPO to KOA. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from OPO to KOA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA)?
Nonstop flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from OPO to KOA?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA)?
To avoid possible delays on the Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA) last-minute?
Booking your flight from OPO to KOA shortly before your getaway is typically more expensive. But if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book an OPO to KOA flight and hotel package?
Opting for an OPO to KOA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of stays and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Kona Intl. Airport (KOA)?
In most instances, you're able to reschedule or cancel your OPO to KOA flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.