SKYTEAM:

Air France:

Paris-Prague effective June 4 will increase from 3x/day to 4x/day.

Aeroflot (Via Rossiya):

St. Petersburg-Kazan effective May 1 will begin 5x/week service.

China Eastern:

Hangzhou-Jeju effective April 9 will begin 2x/week service.
Ningbo-Jeju effective April 13 will begin 2x/week service.

KLM:

Amsterdam-Washington DC (Dulles) effective from July 6 to September 16 will increase from 1x/day to 10x/WEEK.

ONEWORLD:

airberlin:

Berlin(Tegel)-Budapest effective May 6 will increase from 1x/day to 2x/day.

British Airways:

London City-Venice effective Sept 17 will begin 6x/week service.

Finnair:

Helsinki-Narita effective June 1 will increase from 1x/day to 10x/WEEK (the new flights will operate as charters).

Source: Airlineroute.net