About FlyGRN

FlyGRN is a flight search engine that automatically offsets (part of) the CO2 emissions of your flight for free. We pay the CO2 offsets with the fee we receive for each sold ticket.
FlyGRN receives a fee for each sold flight ticket. A part of that fee goes to the income of FlyGRN, but we don't keep it all ourselves :). With another part of that fee we're able to offset (part of) your flight's CO2 emissions.

FlyGRN works just like a regular flight ticket search engine. You go to our homepage. There you'll chooce an origin and destination airport and a departure date (and a return date if you chose a return flight). You can also enter the seat class, amount of persons you're traveling with and whether you'd like a direct flight. At the flight search result page you can compare flights on price, travel time, airline and amount of carbon offset.

When you'll book with one of our partners, we receive a fee. A part of that fees goes to FlyGRN, the rest goes to the carbon offset of your flight.

Nee, not at all. In most cases we have similar prices as other flight ticket sites. In some cases we're even cheaper, since we're comparing multiple ticket sites.

About Carbon Offsetting

Unfortunately the aviation industry is excluded from the Paris Climate Agreement. Currently aviation account for two percent of the global CO2 emissions.

The amount of air travel passengers is expected to double in the next twenty year. Air travel technologies aren't keeping up with that growth. Therefore, it's expected that emissions in aviation will increase.

Also your flight contributes to greenhouse gas emissions. But there's a way to compensate for these emissions, namely by carbon offsetting.

While we also hope that electric planes and biofuel technologies will develop soon, it's expected that this will take a few years to decades. To reach climate goals, we should act now. And you can act now by reducing your emissions and offsetting the rest via FlyGRN!

About Carbon Offsetting

Carbon offsetting works (Guardian) with a certain carbon offset scheme that allows individuals and companies to invest in environmental projects around the world in order to balance out their own carbon footprints.

FlyGRN offsets carbon with VCS Certification

To making sure that the carbon is really offset, several certification standards were developed to ensure that carbon is really offset correctly. FlyGRN uses the Verified Carbon Standard (VCS / VERRA)

Sure! This is an example of a carbon offsetting certificate that users receive after booking: example certificate
In order to do that, we created emission factors per (passenger)kilometre that are based on the ones created by the British government. You can read more about it on our blog.
That's defintely a possibility. Send us an email to info [at] flygrn [dot] com. We'd love to help you with offsetting the carbon impact of your business.

Artist Alfio Bonanno and architect Christophe Cornubert created a demonstration of the volume of a metric tonne of CO2 (1.1 short tons), the amount an average person produces in a month. It was made up of a giant four-sided video projector and was floating on the lake in front of Copenhagen's Tycho Brahe Planetarium during the Convention on Climate Change. Thanks to Treehugger.

That's certainly possible. We didn't create a calculator for this yet, but this calculator is a great start. When you've calculated your emissions you can directly offset this amount via the 'direct offset module' under the carbon calculator on this page.

When reading about carbon offsetting you might read about carbon neutral air travel and climate neutral air travel. Although these concepts might look similar, they are different.

As one might know, a plane emits carbon. Emitting carbon at higher altitudes is expected to have higher carbon emissions, than when emitting on the ground. Since planes fly on higher altitudes, higher emissions factors need to be taken into consideration.

The exact factor is not certain yet, but the most renowned organizations, like the British government (DEFRA) and Dutch Milieucentraal.nl are advicing to take a multiplication factor of 1.9 into account.

That's why FlyGRN uses a factor of 1.9, to at least include some extra effects of carbon emissions at higher altitudes into account.

You can read more about it in the following article.


A carbon footprint is the amount of greenhouse gases that is produced by a certain human activity. Although the term is called a carbon footprint, it could also imply other greenhouse gases like methane. In this case, the methane would be converted to CO2-equivalents (methane is 25 times more potent per kilogram than CO2).

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