Complex sentence: However, Finnair has used the A350 on very long flights, including 15 hours to Beijing, 18 hours to Shanghai, and 20 hours to Bangkok and may accelerate its retirement of Airbus A340 aircraft as a result.
Split into simpler sentences: However, Finnair has used the A350 on very long flights, including 15 hours to Beijing, 18 hours to Shanghai, and 20 hours to Bangkok. Finnair may accelerate its retirement of Airbus A340 aircraft as a result.