At Helsinki Airport, you can find the following lounges:
- SAS Lounge at gate 13
- Finnair Schengen Lounge at gate 22, 3rd floor
- Aspire Lounge by Swissport at gate 27, 3rd floor
- Finnair non-Schengen Lounge at gate 52
- Plaza Premium Lounge at gate 40
- Plaza Premium Lounge in arrivals hall (before security)
Please check the opening hours of the lounges from their web page from the links above.