ONTSEA
Ontario (Ontario International Airport) to Seattle (Seattle-Tacoma International Airport).
Plan this routeAt a glance
| Est. flight time | Distance | Frequency | Type |
|---|---|---|---|
| ~2h 34m Estimated from great-circle distance — no tracked flights yet. | 957 mi | 8-9/day | Domestic |
Airlines on this route
Airlines flying ONT to SEA
Scheduled service data shows 8-9/day from ONT to SEA across 4 airlines. Departure terminal data is available for 2.
- First departure
- 00:16
- Last departure
- 23:36
- Cadence
- ~every 2 hours
- Daily departures
- 19
| Airline | Daily frequency | Aircraft | Departures (local) |
|---|---|---|---|
| Alaska Airlines | 4-5/day | Boeing 737, Airbus A330 · Terminal 2 · Seat map | 06:0006:02 |
Aircraft on this route
Flying the other way?
SEA to ONT flights — 8-9/day on 4 airlines →Route FAQ
How long is the flight from ONT to SEA?
The ONT to SEA flight is typically scheduled at about 2h 34m.
How far is ONT from SEA?
ONT to SEA is about 957 miles by air.
Which airlines fly from ONT to SEA?
Alaska Airlines, Delta Air Lines, Frontier Airlines, ATI fly the ONT to SEA route in our route data.
What aircraft fly from ONT to SEA?
Aircraft observed or commonly scheduled on ONT to SEA include Airbus A320 family, Boeing 737, Airbus A330, Boeing 767, Embraer E-Jet.