Beijing (PEK) to Bangkok (BKK): 2,061 miles (3,317 km) great-circle, about 4h 35m nonstop by our estimate. Cheapest fare observed: $288 round-trip on Air China, with 1 stop, departing June 2, 2026.
$288 round-trip, Air China CA1139, departing 2026-06-02 at 17:45, returning 2026-06-13. The recorded itinerary left on a Tuesday, returning on a Saturday 11 nights later; the fare was observed 38 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $288, it ranked 5th of the 30 round-trip fares we recorded from PEK (median $408). That is 14.0 cents per great-circle mile (round-trip price over one-way distance), below the PEK median of 26.1 cents across 30 round-trip routes.
Routes from PEK of similar length: Ho Chi Minh City (2,111 mi) at $311 and Nha Trang (1,992 mi) at $323.
Air China had the cheapest fare on 11 of 30 PEK routes. It is the 13th longest of the 30 routes we track from PEK.
Of 59 departure airports with a fare to Bangkok, Beijing (PEK) ranked 14th at $288. Lowest: $73 from Phuket (HKT); highest: $1428 from Mexico City (MEX); 14 nonstop. Cheapest-fare airlines (routes): Air India (5), Etihad (5), Thai Vietjet Air (4), Air China (3), Scoot (3) and Thai AirAsia (3), plus 31 more.
The reverse, Bangkok (BKK) to Beijing (BJS), was $264 round-trip on Xiamen Airlines, 1 stop, departing April 29, 2026. Bangkok to Beijing flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Shanghai, Asia/Bangkok; flight time is our estimate.