China Airlines typically offers Business and Economy cabins (with First or Premium Economy on some widebody/long-haul routes). Cabins differ notably in seating, catering, baggage allowance and mileage accrual.
For short routes economy is usually the best value; on overnight or long-haul flights Business meaningfully improves rest. Watch for upgrade offers with miles or cash around check-in time.
Product-wise: Founded in 1959, China Airlines is Taiwan’s most established carrier and a SkyTeam member, flying a global network from Taoyuan across Asia, North America, Europe and Oceania, with a top-tier cargo arm. Its A350/777 fleet includes famous special liveries.
On loyalty: Dynasty Flyer members accrue miles by cabin, and elite tiers add seat, baggage and lounge benefits — worth joining if you fly China Airlines often.