Rait Remmel, spokesperson for Lux Express, one of the main operators plying its trade between Estonia and Latvia, said: "The possibility to travel by bus directly to Riga Airport and directly back home from there after a trip makes the journey much more comfortable and less stressful for a person starting their trip from Tartu or Valga than doing so via Tallinn or by private car."
Lux says it will be operating between Rīga and Tartu from next Monday, adding that an initiative permitting cyclists to take their bikes on board without extra charge had proved popular and would be continued, though restricted to no more than five bicycles per bus journey.
The Tartu-Rīga route stops at Valga and Riga bus station, terminating at Riga airport.
The company is also restoring its services from Tallinn to Rīga and Rīga to Vilnius, linking all three Baltic capitals.
Covid-19 rates in Estonia, Latvia and Lithuania have fallen steadily over recent weeks.
The opening up of public transport again is likely to be particularly welcome at Rīga International Airport, which serves large numbers of Estonian and Lithuanian customers as well as the domestic Latvian market.