The logo of Irish low-cost airline Ryanair | Andreas Arnold/AFP via Getty Images Ryanair to pivot business growth out of Brexit Britain Low-cost airlines worried about knock-on effect after UK’s departure from bloc.

No-frills airline Ryanair said Thursday it will redirect its expansion efforts outside the United Kingdom over the coming two years to avoid uncertainty around Brexit.

"Brexit will inevitably lead to a slowdown in growth in the U.K," said Ryanair's Finance Director Neil Sorahan, according to Reuters. "We haven't seen it yet, but we believe it will lead to a slowdown in growth in both the U.K. and the EU, as both parties have to deal with a completely new scenario."

Airlines like Ryanair and its competitor easyJet are worried that the U.K.’s departure from the EU will make it difficult for them to access European airports from Britain if there is no deal to keep the country inside the common aviation market.

Sorahan said the Ireland-based carrier would also decide whether or not to apply for a British air operating license in the next year, but that domestic flights within the U.K. account for only 2 percent of revenue.

Ryanair has already scaled back expansion plans. What had been earmarked as a 12 percent expansion in the U.K. this year is being rolled back to 5 percent, the airline said in November.

EasyJet is looking to set up a European base; if U.K. airlines want to keep guaranteed access to the aviation area post Brexit, they will need to prove they are majority EU-owned.