It’s not known if the cancellations will affect an April 9 make-up date at the Roseland Ballroom in New York City, scheduled after a prior date was scrapped when two band members came down with the flu.

The aborted European dates span from April 1 – 18, but Coldplay is optimistic it can resume tour duties in the U.K. beginning April 23 in Aberdeen, Scotland.

The latest round of malaise isn’t stopping Coldplay from forging ahead with further tour plans, though. The power-pop quartet has firmed up another North American outing, launching May 24 at the Avalon in Boston.

They’ll follow that up two days later with an appearance at the annual WBCN River Rage radio festival at nearby Foxboro Stadium, then hit the road for 16 more club dates before heading back across the Atlantic for more European shows.

The North American trek includes a two-night stand at the Warfield in San Francisco and a closing gig June 27 at Radio City Music Hall in NYC.

Along for the ride will be spacey quintet Grandaddy. Though the band hails from lowly central California they seem to have touched a nerve with European audiences, charting with its 1997 indie release, Under the Western Freeway, and single “Summer Here Kids.”

Grandaddy is pushing its second full-length release, The Sophtware Slump, which has seen yet another single, “The Crystal Lake,” crack the U.K. Top 40. The group is primed for wider North American exposure, having recently opened with the equally enigmatic Elliott Smith last fall.