United States
Ontario to Seattle by direct flight
Ontario International (ONT) and Seattle Tacoma International (SEA) are connected non-stop — 1,540 km apart, roughly 2 h 17 m in the air, served in both directions.
1,540
km, great-circle
2 h 17 m
estimated flight time
A ⇄ B
both directions
→ Open this route in the interactive map
The two airports
| Airport | City | Country | Direct destinations |
|---|---|---|---|
| ONT Ontario International | Ontario | United States | 14 |
| SEA Seattle Tacoma International | Seattle | United States | 90 |
More routes from Ontario
- ONT–MDWChicago2,740 km
- ONT–IAHHouston2,142 km
- ONT–GDLGuadalajara2,059 km
- ONT–DFWDallas-Fort Worth1,908 km
- ONT–PDXPortland1,351 km
- ONT–DENDenver1,316 km
- ONT–SLCSalt Lake City898 km
- ONT–SMFSacramento627 km
More routes from Seattle
- SEA–DXBDubai11,928 km
- SEA–TPETaipei9,757 km
- SEA–PVGShanghai9,188 km
- SEA–PEKBeijing8,679 km
- SEA–ICNSeoul8,373 km
- SEA–FRAFrankfurt8,197 km
- SEA–CDGParis8,049 km
- SEA–AMSAmsterdam7,840 km
Route network built from the open OpenFlights and OurAirports datasets. Flight time is a distance-based estimate; carriers and timetables change and are not shown here — verify schedules before booking.