Starting in April 2017, passengers will be able to fly to Stockholm from Manchester, Birmingham and Luton. A service is also being introduced from Manchester and London Gatwick to Zagreb in Crotia and from Luton and Manchester to Porto in Portugal.
To support the new routes an additional aircraft will be based at Manchester airport.
As well as the three new destinations, Monarch has added frequencies to popular routes for summer 2017 including London Gatwick to Lisbon and Manchester to Barcelona, Lisbon and Rhodes.
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