$111 Cheap Flights from Porto (OPO) to Reykjavik (KEF)

View $111 flight on Fri, Mar 20, 2026Opens in a new window

Popular airlines from Porto Airport (OPO) to Reykjavik–Keflavik Intl. Airport (KEF)

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Cheap Flights from Porto to Reykjavik (OPO-KEF)

Prices were available within the past 7 days and start at $111 for one-way flights and $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sun, Jan 18 - Fri, Jan 23
OPO
Porto
KEF
Reykjavik
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sun, Jan 18 from Porto to Reykjavik, returning Fri, Jan 23, priced at $239 found 1 day ago
Lufthansa
Thu, Jan 22 - Sun, Jan 25
OPO
Porto
KEF
Reykjavik
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Jan 22 from Porto to Reykjavik, returning Sun, Jan 25, priced at $259 found 1 day ago
Lufthansa
Sat, Dec 13 - Sat, Jan 10
OPO
Porto
KEF
Reykjavik
$267 Roundtrip, just found
$267
Roundtrip
just found
Select Lufthansa flight, departing Sat, Dec 13 from Porto to Reykjavik, returning Sat, Jan 10, priced at $267 just found
Lufthansa
Sat, Dec 13 - Sat, Jan 10
OPO
Porto
KEF
Reykjavik
$269 Roundtrip, just found
$269
Roundtrip
just found
Select Lufthansa flight, departing Sat, Dec 13 from Porto to Reykjavik, returning Sat, Jan 10, priced at $269 just found
Lufthansa
Wed, Jan 21 - Sun, Jan 25
OPO
Porto
KEF
Reykjavik
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Jan 21 from Porto to Reykjavik, returning Sun, Jan 25, priced at $278 found 1 day ago
Lufthansa
Wed, Jan 21 - Sun, Jan 25
OPO
Porto
KEF
Reykjavik
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Jan 21 from Porto to Reykjavik, returning Sun, Jan 25, priced at $280 found 1 day ago
KLM
Tue, Feb 17 - Wed, Feb 25
OPO
Porto
KEF
Reykjavik
$367 Roundtrip, found 22 hours ago
$367
Roundtrip
found 22 hours ago
Select KLM flight, departing Tue, Feb 17 from Porto to Reykjavik, returning Wed, Feb 25, priced at $367 found 22 hours ago
Scandinavian Airlines
Fri, Mar 20 - Sat, Mar 28
OPO
Porto
KEF
Reykjavik
$381 Roundtrip, found 3 hours ago
$381
Roundtrip
found 3 hours ago
Select Scandinavian Airlines flight, departing Fri, Mar 20 from Porto to Reykjavik, returning Sat, Mar 28, priced at $381 found 3 hours ago
Swiss International Air Lines
Fri, Mar 20 - Sat, Mar 28
OPO
Porto
KEF
Reykjavik
$394 Roundtrip, found 3 hours ago
$394
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Fri, Mar 20 from Porto to Reykjavik, returning Sat, Mar 28, priced at $394 found 3 hours ago
TAP Portugal
Thu, Jan 22 - Sun, Jan 25
OPO
Porto
KEF
Reykjavik
$547 Roundtrip, found 1 day ago
$547
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Thu, Jan 22 from Porto to Reykjavik, returning Sun, Jan 25, priced at $547 found 1 day ago

Alternative airports near Reykjavik

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Keflavik Intl. KEF. Cheapest option available. Average driving time to city center is 45 minutes. Flights from $638
KEF
Keflavik Intl.
Cheapest
Average driving time to city center45 min
Flights from $638

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF) cost?
Secure a cheap one-way flight from $111 or cheap return flight from $239 from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF) 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 Keflavik Intl. Airport (KEF)?
Planning your trip for January can help you save, as it's the cheapest month for flights between OPO and KEF. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF)?
To find the cheapest airline that'll fly you from OPO to KEF, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF)?
There are no daily direct flights departing from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from OPO to KEF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from OPO to KEF?
Consider booking with Fly Play if you'd like to fly straight from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF) without any holdups. This carrier has the best track record for punctuality, with an on-time score of 88%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF)?
Select a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 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 Keflavik Intl. Airport (KEF) last-minute?
Waiting until just before your trip to book your flight from OPO to KEF generally means paying more. While you might find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of landing a bargain.
Is it cheaper to book an OPO to KEF flight and hotel package?
You'll generally save money by securing an OPO to KEF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Keflavik Intl. Airport (KEF)?
You can usually reschedule or cancel your OPO to KEF flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Keflavik Intl.
Airlines serving
Finnair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Roundtrip price
$239
Distance
1669 mi

Book with confidence

Porto to Reykjavik Flights

The cheapest times to fly from Porto to Reykjavik

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 Reykjavik are during the month of January. You can find some of the cheapest flights from Porto to Reykjavik with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Reykjavik

Sunday is one of the best days to book for cheap flights from Porto to Reykjavik: 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 Reykjavik

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 Reykjavik in 2025. You can also book with separate airlines for your outbound and return journeys, from $111 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 Reykjavik 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 Reykjavik 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.

 

Porto to Reykjavik Flights

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*Available to One Key members.