This is a Chrome Extension I had made last year. I removed it from the Chrome store because it was a little buggy with some versions of Google Flights. But for the last couple of months, I didn't have any issues using it, so I recently published it again in the Chrome Store.

How it works

1) When you have selected your outbound and inbound on Google Flights (or only outbound if you're searching for a one-way itinerary) a popup will open in the top right corner.

2) If you click 'Search the Matrix', the ITA Matrix website will open in a new tab.

3) It will automatically fill in the following search settings:

- Departing airport

- Destination airport

- Outbound date

- Return date

- Cabin (travel class)

It has a couple of limitations and it can't find the exact flights you've selected. But it does save me some hassle filling in all the search settings, so I thought it might be worth sharing.

You can download the Chrome Extension in the Chrome Store.

If you have ideas on how this extension could be better for you, please do share!