easyJet · Viola

Yes

Cabin: yes

Yes, if you buy a large cabin bag. The instrument takes its place, within 30 × 117 × 38 cm.

You can buy it a seat on this airline.

At the airport, call it a violin. Few staff know what a viola is, and some picture a cello.

easyJet rules

With the free small bag allowance, an instrument up to 45 × 36 × 20 cm goes under the seat and replaces your small bag.
With a large cabin bag, an instrument up to 56 × 45 × 25 cm or 30 × 117 × 38 cm replaces the large bag. You keep a small bag as well.
Standard fares must buy the large cabin bag. Plus and Inclusive Plus customers get it free or discounted.
Bigger instruments need a purchased seat: 75 kg limit, window seat, no more than 30 cm above the seat back. The seat has no cabin bag allowance.
Anything else goes in the hold as a paid hold bag.

Before you leave for the airport

Measure the case and weigh it packed. Staff measure the case, never the instrument.
Check the fare. The cheapest fares often include only an under-seat bag.
Check who operates each leg. The operating airline's rule applies.
A seat for the instrument is booked by phone, often 48 hours or more ahead.
Photograph the instrument and case before you leave home.
Board as early as you can.