List of Airlines at (HEL) airport

Aegean Airlines
AirBaltic
Air Canada
Air China
Air France
Air Serbia
Amapola
American Airlines
Austrian Airlines
Avion Express
Blue Air
Braathens Regional Airlines
British Airways
Brussels Airlines
Bulgaria Air
Cathay Pacific
China Southern Airlines
Corendon Airlines
Croatia Airlines
Czech Airlines
DAT
Delta Air Lines
EasyJet
Enter Air
ETF Airways
Eurowings
Finnair
Flydubai
Freebird Airlines
Iberia
Icelandair
Japan Airlines
Jettime
Juneyao Air
Karhu.aero
KLM
Lufthansa
Malaysia Airlines
Norra
Norwegian Air Shuttle
Novair
NyxAir
Pegasus Airlines
Qatar Airways
Ryanair
Scandinavian Airlines
Sichuan Airlines
Singapore Airlines
Smartwings
Sunclass Airlines
SunExpress
Swiss International Air Lines
TAP Air Portugal
Thai Airways
Tibet Airlines
TradeAir
Transaviabaltika
TUI Airways
Turkish Airlines
Ukraine International Airlines
United Airlines
Vueling

Many passengers do not know who to consult or make a claim to some doubts that arise before or after traveling, or any inconvenience that may occur. Listed below are topics that need to be consulted, coordinated or resolved directly with the airline.   Check in procedure   Documentation and visa required   Baggage weight limits, restricted and prohibited Items   Baggage and excess billing rates   Requirements for minors traveling alone or without parents   Special passengers needing prior coordination with the airline: people with disabilities, reduced mobility and pregnant women   Lost, delayed or damaged baggage reclaim   Possible flight's changes of date or cancellations   Confirmation of flight schedules (departures or arrivals)   Flight status report (for possible delays, cancellations, rescheduling)   In case your airline reschedules your flight, coordinate with the company for possible compensation, due to extra nights accomodation, food, flight connection lost, etc. Remember that it is always advisable to have a traveler's assistance insurance, in case the airline does not respond to any inconvenience that might happen (baggage lost or damaged, cancellation or flight delay, etc.)