The air travel chaos has cost Scandinavian airline SAS 91 million dollar – and the Icelandic volcano is sending up a new plume of ash.

• Icelandic volcano emits more ash
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Scandinavian airline SAS’ traffic was “significantly affected” by the volcanic air travel chaos, it said in a traffic report Friday. The number of passengers dived by almost one third in April and earnings are expected to be negative.

The airline estimates the negative impact from the ash cloud on earnings up to May 7 to be between 650 and 700 million kronor (84 – 91 million dollar).

“The traffic development in April was significantly affected by the closure of major parts of the European airspace during almost one week in April due to the volcanic ashes”, the airline wrote in a statement.

Worryingly, meteorologists said Friday that the Icelandic volcano has sent up a new plume of ash and is set to emit another cloud of debris after surging back to life.

"The eruption has changed back to an explosive eruption, lava has stopped flowing and most of the magma gets scattered due to explosions in the crater," the Icelandic Met Office and Institute of Earth Science said.

The airline's yield -- a measure of the average ticket price -- dived 10 percent in March and change in yield is expected to be negative in April.

“The effect from the volcanic ashes has affected bookings also for May and June, but it is too early to assess the effects on traffic. Bookings are now almost back to normal levels”, the airline said.

"In addition to the damage inflicted to our passengers, the aviation industry lost more than 25 billion Swedish kronor (2.5 billion euros, 3.3 billion dollars)," SAS chief executive Mats Jansson stressed in the statement.