EasyJet's Starlink deal is a potential edge over Ryanair, Europe's dominant budget airline. Horacio Villalobos#Corbis/Getty Images

Elon Musk's Starlink has won its latest customer, a budget airline that could put pressure on one of the WiFi service's biggest critics.

EasyJet announced on Monday that the high-speed WiFi service would be deployed on its airplanes from the first half of next year. The British airline, which carries 100 million passengers a year, hopes to have Starlink installed across its 300-strong fleet by early 2028.

The deal means two of Europe's three biggest budget airlines have committed to Starlink.

Wizz Air, a Hungarian carrier that flies about 70 million passengers a year, signed up in June.

That leaves Ryanair, the continent's largest airline and the world's third-largest, as the only one of Europe's biggest budget carriers without the service.

Its CEO, Michael O'Leary , is well-known for being outspoken and took aim at Starlink earlier this year, leading to a spat with…