Ontario to Bangkok flight path: ONT to BKK

Sit on the Right side of the plane for the best views on flights from Ontario to Bangkok. Both takeoff and landing favor the right side with mountain, coastal, and urban river-delta views, while the long transpacific cruise over open ocean offers little differentiation between sides and caps the overall scenic potential for a flight of this length.

During takeoff from Ontario International (ONT), sit on the Right side for the best views. Departing ONT to the west, the flight typically curves northwest along the coast toward the transpacific track, putting the San Gabriel Mountains and then the Santa Barbara coastline and Channel Islands on the right side of the aircraft. The left side mostly shows the flatter Orange County basin fading into haze. Notable sights include: San Gabriel Mountains, Santa Barbara coastline, Channel Islands, Los Angeles basin.

When landing at Suvarnabhumi Airport (BKK), sit on the Right side for the best views. On the typical dry-season approach to runway 19, the aircraft descends from the north and banks south over central Thailand's rice paddies before lining up for landing, putting Bangkok's dense skyline and the winding Chao Phraya River on the right side of the cabin. The left side shows mostly flat agricultural plains with fewer distinct landmarks. Notable sights include: Chao Phraya River, Bangkok skyline, Gulf of Thailand horizon, patchwork rice paddies.

The flight from Ontario International (ONT) to Suvarnabhumi Airport (BKK) takes about 16 hours 45 minutes. The shortest flight path between them is 8,286 miles (13,335 km); winds and air traffic control usually add a few percent.

Vast open Pacific Ocean for the majority of the cruise, with the flight path passing well south of the Aleutian chain and north of Hawaii before descending toward Southeast Asia near the Philippine Sea and South China Sea.