Title: Cheap KLM fights from Porto to Heraklion - Expedia.ca ![](https://images.trvl-media.com/place/1444/0457b8d9-a39e-49c1-bbc3-e4c1f21c74aa.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap KLM fights from Porto (OPO) to Heraklion (HER) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Porto to Heraklion (OPO - HER) route information | Origin airport | Dr. Francisco de Sa Carneiro | | --- | --- | | Destination airport | Nikos Kazantzakis | | Distance | 2988 km | ## Frequently asked questions ### How much is a KLM flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Nikos Kazantzakis Airport (HER)? > Use the "Price (lowest to highest)" filter on Expedia to look for cheap KLM round-trip flights from OPO to HER. Affordable one-way fares are also on offer.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from OPO to HER with KLM? > Browse for one-way or round-trip flights to Heraklion in February or January. You could find cheaper fares with KLM during these off-peak months. ### Does KLM fly nonstop from Dr. Francisco de Sa Carneiro Airport (OPO) to Nikos Kazantzakis Airport (HER)? > Click on the "Nonstop" filter when looking for direct KLM flights from OPO to HER. It's also a great way to compare other airlines offering the same nonstop journey. ### What airports does KLM fly into in Heraklion? > KLM flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Heraklion touch down at Nikos Kazantzakis Airport (HER). This is the main gateway to this city. ### Can I change or cancel my KLM flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Nikos Kazantzakis Airport (HER)? > Depending on the type of fare you purchased, a fee generally applies if you modify or cancel your booking more than 24 hours after confirmation. To secure flexible plane tickets, select our "Changes included" and "No cancel fee" boxes while searching for flights. 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