No-frills carrier Wizz Air is moving its Edinburgh services to Budapest and Bucharest to Glasgow but declined to provide an explanation for the switch.
The routes will take off from Glasgow in November and replace the services from Edinburgh the same week.
There will be two flights per week for both destinations with single fares starting at £21.99.
Wizz Air is also withdrawing a route from Edinburgh to Gdansk in Poland, meaning the airline will no longer have any services from the Scottish capital.
The airline’s exit gives larger budget rival Ryanair a monopoly on the three routes from Edinburgh.
Marion Geoffroy, managing director of Wizz Air UK, said: “Budapest and Bucharest may sound similar in name, but they offer so many different, amazing activities for travellers wanting to explore more of what Europe has to offer.
“From incredible restaurants to the great outdoors, both locations have something for every kind of explorer.
“We look forward to operating these flights from November as part of our new winter schedule.”
Matt Hazelwood, chief commercial officer at AGS Airports, which owns Glasgow airport, said: “Wizz Air’s return to Glasgow is fantastic news, offering two sensational destinations in Central and Eastern Europe.
“From this winter, Scottish travellers can jet away to Budapest and Bucharest, both flown twice weekly. Whether it’s sipping local Furmint wine on a Danube city cruise through Budapest or exploring the world’s heaviest building in Bucharest, both destinations will offer our passengers the perfect city break this winter.”
An Edinburgh airport spokesperson said: “Although it is always disappointing to lose a valued airline partner, routes to Budapest, Bucharest and Gdansk continue to be well served by Ryanair.
“This ensures continuity of service for passengers travelling from Edinburgh to these fantastic cities.”