There are two main ways to book Air China Inner Mongolia (CA) flights: directly on the official website, or via platforms like Trip.com after comparing fares. The same flight can differ noticeably in price between channels and dates, so a quick comparison usually pays off.
Watch the fare class when booking: economy fares in different booking classes carry different change/refund rules and mileage accrual. If plans may change, pick a flexible fare.
Timing-wise, avoid the week right before major holidays; 2-6 weeks ahead is the sweet spot for domestic fares — and early-morning or late-evening flights often run 10-30% below prime-time.
Trip.com settles in your local currency and supports international cards, Alipay and WeChat Pay; platform bookings also come with platform-side support for changes.