Originally Posted by
Zorak
This is kinda weird:
1. Starting from a fresh search at
https://www.google.com/flights
2. Enter cities
3. Change the dates
4. On the search results screen, click the Airlines dropdown -- I am no longer able to filter by individual airlines
it only shows alliances (similar to the map search). However once I click on an alliance, then the checkboxes for the individual airlines appear for selection/exclusion.
So it's still possible, but now has an extra annoying step.
At first I thought it was another creeping removal of useful functionality, but then I noticed a subtle difference -- if I repeat the process but skip over step 3 and just accept the default dates, then the individual airline checkboxes appear from the get-go.
I think I discovered the solution to #4. If you search a specific route through the flights tab, apply the filters that you want such as specific airline, then change the destination to something broad, like "Europe", the explorer map will come up and all the filters you had just set will remain in place while you explore the map.
Not only does this allow you to set a specific airline, you can also set layover airports (the map won't reflect this but when you click on a city, the results in the left side panel will) and when you start exploring the map, you can change it to flexible date search.