List of Airlines at (STR) airport

Terminal 1

AirBaltic (Tel +371 6700 6006)
Air Serbia (Tel +49 692 0756)
Avanti Air (Tel +49 273 644 430)
Eurowings
Lübeck Air (Tel +49 451 3171 9000)
Turkish Airlines (Tel +49 698 679 9849)
Twin Jet (Tel +33 442 901 214)

Terminal 2

Austrian Airlines (Tel +49 695 060 0598)
Lufthansa (Tel +49 698 679 9799)
Swiss International Air Lines (Tel +49 698 679 8000)
Vueling

Terminal 3

Aegean Airlines (Tel +49 692 380 560)
Aeroitalia Air France (Tel +49 692 999 3772)
Blue Islands (Tel +44 123 458 9200)
British Airways (Tel +49 421 557 5758)
Condor
Delta Air Lines (Tel +49 692 999 3771)
Enter Air
European Air Charter (Tel +49 308 848 7819)
Freebird Airlines (Tel +90 242 349 5747)
ITA Airways
KLM (Tel +49 692 999 3770)
LOT Polish Airlines (Tel +49 691 5325 3324)
Pegasus Airlines
Scandinavian Airlines (Tel +49 698 679 9676)
Smartwings (Tel +420 220 116 686)
Sundair (Tel +49 305 367 6791)
TUI fly (Tel +49 511 2200 4321)

Terminal 4

Air Cairo (Tel +49 699 023 4000)
Corendon Airlines (Tel +49 211 9543 9061 / 546 922 307)
GP Aviation (Tel +49 211 635 5862 5945)
SunExpress (Tel +49 699 023 4000)
Trade Air (Tel +49 892 1536 2890)

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.)

Booking.com