Google flights has the functionality where it will show you a map with the cheapest fares available for a period of time - so, e.g., you can ask it to show cheapest flights to Europe for a one week trip in the next 6 months, and it will show you a map with the prices to various different cities.

The problem (at least for me) is that I don't want to fly TAP, and TAP seems to almost always have the cheapest fare by hundreds of dollars. So I end up with a map of the cheapest fares offered by TAP.

I see that it is possible to choose to search by alliance (STAR, etc.), but no way to exclude a particular airline. Any word arounds to get rid of TAP from the results?