Cheap flights from Reykjavik Keflavik to Porto

Compare Reykjavik Keflavik to Porto flight deals

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Flight deals from Reykjavik Keflavik to Porto

Looking for a cheap last-minute deal or the best round-trip flight from Reykjavik Keflavik to Porto? Find the lowest prices on one-way and round-trip tickets right here.
Map with a flight path from Reykjavik Keflavik to Porto. A plane icon is halfway along the route with a label that says "1+ stops."
1+ stops

Your route at a glance

Cheapest deal$217
Cheapest monthMarch
Most popular airlineLufthansa

Find the cheapest month to fly from Reykjavik Keflavik to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to Porto flights are currently cheapest in March.

Reykjavik Keflavik to Porto: Alternative routes

Compare routes from Reykjavik Keflavik to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Finding cheap flights from Reykjavik Keflavik to Porto: Frequently asked questions

The best price we found for a round-trip flight from Reykjavik Keflavik to Porto is $217. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Reykjavik Keflavik to Porto. But we found flights with one or more stops from $217.
There are no flights flying from Reykjavik Keflavik to Porto, as of December 2025.
The cheapest month to fly from Reykjavik Keflavik to Porto is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Porto Airport on Tuesday, March 10, 2026.
No airlines currently offer direct flights between Reykjavik Keflavik Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, easyJet offers the cheapest flight tickets to Porto.

Flying from Keflavik International Airport (KEF) to Porto Airport (OPO): what you need to know

  • Around 4 hours 10 minutes is how long you'll be traveling on a direct flight from Keflavik International Airport to Porto Airport.

  • Reykjavik and Porto share the same timezone, UTC+0.

  • Your KEF to OPO flight won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • During popular months like July, it's best to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're traveling during peak periods in general.

  • Fly Play is your gateway to exploring Porto (and perhaps some other great corners of Portugal!). Browse the direct flights from Keflavik International Airport to Porto Airport offered by this popular carrier.

  • The airline that tops the list for bookings on this route is Fly Play.

  • Consider adding a stopover when booking your ticket from Keflavik International Airport to Porto Airport. Just uncheck 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Check out these options between KEF and OPO:

    • Menara Airport

    • Charles de Gaulle Airport

    • Stansted Airport

How to find the cheapest flights from Keflavik International Airport (KEF) to Porto Airport (OPO)

  • The lowest price we've seen for a one-way Keflavik International Airport to Porto Airport flight is $77. A return ticket right now is $217. Depending on the availability and when you book, these fares may change.

  • Score cheap tickets from KEF to OPO by booking at least nine months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • The cheapest month for flights from Keflavik International Airport to Porto Airport is August. Use the 'Whole month' tool to see the lowest airfares if you have flexible travel dates.

  • Landing cheap flights from KEF to OPO is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when a new discounted fare appears.

  • Lock in the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Keflavik International Airport to Porto Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Keflavik International Airport (KEF)

  • Of the flights that depart from Keflavik International Airport, 66.96% arrive on time at their destination.

  • Central Reykjavik to Keflavik International Airport is around 48 kilometers. Depending on traffic, it'll take about 50 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Planning to take public transport? Expect a journey time of around 1 hour 15 minutes.

  • Need a handy hotel near KEF? If you're catching an early flight from Keflavik International Airport to Porto Airport, these accommodation options will have you sleeping moments from your check-in counter:

Arriving at Porto Airport (OPO)

  • The last thing you want is a long journey to your hotel if you're getting in late on a Keflavik International Airport to Porto Airport flight. Check in to one of these accommodation options near OPO instead:

  • Grab a Porto Airport rental car and discover Porto and beyond with your own set of wheels. Klass Wagen, Goldcar and Drive & Go are leading providers to choose from here.

  • To lock in the lowest price, book your ride from Porto Airport around three weeks before you travel.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto has a drive time of about 20 minutes. It's approximately 16 kilometers away.

  • Traveling by public transport takes roughly 50 minutes.

When to fly to Porto Airport (OPO)

  • August is the most popular month for flights from Keflavik International Airport to Porto Airport. To steer clear of the crowds, visit Porto in January.

  • Lock in your flight from Keflavik International Airport to Porto Airport for August if you'd like to explore Porto during its warmest month. You can expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • January has average temperatures of between 3ºC (37ºF) and 14ºC (57ºF). Look for cheap tickets from KEF to OPO sometime then if you like traveling in cooler conditions.

Explore more of Portugal

  • You've seen Porto, now it's time to discover other parts of Portugal. Journey around 274 kilometers south to Lisbon to tick off its popular sights. From Torre de Belem Garden to Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle, there's plenty to keep you on the go.

  • Amadora is another well-known destination in Portugal and is around 274 kilometers south of Porto. No trip is complete without dropping by Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.