The Finnish airline Finnair is to temporarily suspend its flights from Helsinki to Tartu in Estonia, due to ongoing disruptions to GPS satellite navigation. Tartu is the second largest city in the Baltic EU and NATO country, which borders Russia. The daily service to its airport will be suspended until May 31st so that a solution can be found that does not require a GPS signal on landing, the airline announced on Monday. Two Finnair flights had to be diverted at the end of last week after GPS interference had prevented them from approaching Tartu. Estonia has recently observed an increase in t…