Loganair has stepped in to help passengers affected by the collapse of Eastern Airways, the regional airline, which is appointing an administrator.

Humberside-based Eastern, connecting destinations such as Aberdeen, Newquay, Teesside and Gatwick, has cancelled all flights. Aircraft have been returned to leasing companies.

For passengers and staff on routes to and from Aberdeen on Tuesday and Wednesday, 28-29 October, train operators will provide free travel on production of a boarding pass, flight confirmation or Eastern Airways employee ID.

The CAA said: “LNER, ScotRail, TransPennine Express and Northern Railway will offer free standard class travel.”

Eastern Airways operated only four scheduled services, three of which were to and from Aberdeen, serving the North Sea oil energy industry. It provided links for offshore and onshore workers to Teesside and Humberside.

The connection between Aberdeen and Wick in far north Scotland was supported by the Scottish government as a “Public Service Obligation” (PSO) route. Its other route was between London Gatwick and Newquay – another PSO connection.

Travellers will be anxiously waiting to hear if any of these routes get taken up by other carriers, but Humberside, Teesside, Wick and Newquay will be particularly exposed.

A Loganair spokesperson said it was “stepping in to support passengers in any way we can,” adding:  “As part of our commitment to keeping the islands connected, we’re introducing a special rescue fare on our Aberdeen/Kirkwall and Aberdeen/Sumburgh routes to assist affected Eastern Airways customers in reaching their destinations with minimal disruption.

“We are also here to support affected Eastern Airways team members in any way we can.  You can reach out to the Loganair.

“As part of the wider aviation community, we stand in solidarity with our colleagues, customers, and partners affected, and we extend our empathy and support.”

Eastern Airways was launched in 1997 with a single route between Humberside and Aberdeen to serve the oil industry. It later served routes between Newcastle and London City and between London City and the Isle of Man.

It has been used to carry Premier League football teams.

The airline is likely to join a list of failed regional carriers after BMI Regional and Flybe.