Three B737s left MAN for TFS this afternoon within 30 minutes. RYR & TOM took just under 4 hrs whereas EXS took 4.5 hours. The RYR & TOM went the direct route over Devon and Northwest Spain whilst the EXS went over Ireland and into oceanic airspace south to Madeira. Is avoiding French & Spanish ATC fees really worth the saving compared to an extra 30mins fuel. Jet2 seem to use this route more than most especially from Northern airports within the UK