| 15.01.1998 | Last session of aviation commission of Ministry of Internal Affairs |
| 21.01.1998 | Meeting of management staff between AS Tallinna Lennujaam (Tallinn Airport) and Lennuliiklusteeninduse AS (EANS) on further co-operation between the reorganised companies. |
| 26.01.1998 | Transition of ATS (ACC, APP, TWR) into the new building |
| 30.01.1998 | Meeting of representatives of aviation companies and airports on the implementation of flight safety internal control |
| 02 - 06.02.1998 | ATM 2000+ seminar in Luxembourg |
| 17 - 18.03.1998 | Tenth European Flight Safety Seminar EASS"98 in Amsterdam |
| 19.03.1998 | Ad hoc Working Group meeting of Ministry of Transport and Communications on the development of Estonian aviation |
| 23.03 - 02.04.1998 | Third AIS/MAP meeting in Montreal in the ICAO Head Quarters |
| 20.04.1998 | Meeting of Estonia, Latvia, Lithuania, Sweden, Finland and Russia on the route network improvement in the Baltic Region |
| 16.04.1998 | 5-th anniversary of Tartu Aviation College in the Museum of History of Tartu University |
| 04.05.1998 | Meeting of EIB (Mr.Joun Hakala), EANS and Tallinn Airport representatives on familiarisation with investment programmes |
| 06.05.1998 | Meeting of representatives of Estonian Institute of Meteorology and Hydrology, EANS and Tallinn Airport on aviation meteorology |
| 03-04.06.1998 | Training seminar for EANS management staff in Lohusalu (in co-operation with INVICTA) |
| 17 - 18.06.1998 | Discussions of Meteo and AFTN matters in ECAA and Ministry of Transport and Communications |
| 17.06.1998 | Visit of EIB vice-president to EANS |
| 19.06.1998 | President of ICAO Council approved new FIR boundaries of the Baltic States |
| 30.06.1998 | Meeting on civil-military co-operation (Sture Ericsson, Teo Krüüner, Jaan Tamm) |
| 30.06.1998 | Meeting of representatives of EANS and smaller airports on future investments and aviation communication systems |
| 01 - 02.07.1998 | Keeleinspektsioon korraldas eesti keele testid Lennuliiklus-teeninduse Aktsiaseltsi töötajatele |
| 05 - 07.07.1998 | Visit of ICAO President Dr. Assad Kotaite and ICAO Regional Director Europe and North-Atlantic Mr. Christian Eigl to Estonia |
| 31.08 - 01.09.1998 | Visit of King of Norway to Estonia (representatives of the Government and business circles paid a visit to EANS) |
| 01.09.1998 | Estonian language phraseology was put into practice in addition to the existing English phraseology |
| 07.09.1998 | In accordance with the order of the Minister of Transport and Communications a working group was established for elaboration of air navigation charges, tariffs and rates |
| 07 - 12.09.1998 | LVA seminar in London on the aviation problems in Eastern Europe combined with aviation exhibition Farnborough"98 |
| 24 - 29.09.1998 | Visit of EANS specialists to Georgian enterprise "Sakraeronavigatsia" |
| 06.11.1998 | Handover of the old en-route radar from EANS to the Airforce |
| 06.11.1998 | All international regular communication cables of EANS were replaced by fibre optics |
| 30.11 - 02.12.1998 | A meeting in Pärnu between EANS and Swedavia on creating a common business plan for consultancy activities |
| 03.12.1998 | Introduction of the revised Tallinn FIR boundaries |
| 03 - 04.12.1998 | Seminar in Pühajärve for Estonian aviation management staff |
| 07.12.1998 | Visit of IATA representatives on Y2k and regional traffic forecast problems |
| 16.12.1998 | Archiving of the documentation related to closing state agency Lennuliiklusteeninduse Keskus was completed |
| 20.12.1998 | Mati Sõrmus (born 17.04.1950) passed away |
| 24.12.1998 | Signing of agreement with SYSECA for the acquisition of a new AIS system |