Flights operate between Ontario (ONT) and SeaTac (SEA).
1 airline operates this route with 4-9 flights daily flights.
Average flight time is 2h 40m - 3h 07m.
Route distance is 962 miles (1548 km).
Route Distance
962 miles (1548 km)
Average Duration
2h 40m - 3h 07m
Airlines Operating This Route
Alaska Airlines
Flight Frequency
Daily Flights
4-9 flights
Weekly Flights
52
Typical Departure Time Ranges
Earliest Departure
06:00
Latest Departure
19:21
Route Intelligence Dashboard
Overall Connectivity Score
70
GoodRoute Diversity
1
Direct Routes
Alaska Airlines serves 1 destination from ONT
Weekly Frequency
28
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| ONT → SeaTac (SEA) (SEA) | 28/week | 2h 40m - 3h 07m | 962 km | Moderate |
Flight Schedule & Filters
Alaska Airlines flights from Ontario (ONT) to SeaTac (SEA)
Alaska Airlines operates scheduled nonstop flights between Ontario (ONT) and SeaTac (SEA). Alaska Airlines operates 4-9 flights daily flights on this route.• Flight Duration: 2h 40m - 3h 07m (average flight time)• Distance: 962 miles (1548 km) (air miles between airports)• Daily Flights: 4-9 flights (scheduled departures per day)
Ontario (ONT)
US
SeaTac (SEA)
US
FLIGHT TIME
2h 40m - 3h 07m
FLIGHT DISTANCE
962 miles (1548 km)
2h 53m - 2h 54m
06:00
19:21
962 miles (1548 km)
April
1 (Show)
52
Alaska Airlines Terminal Information & Contact
Departure Terminal - Ontario (ONT)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, Ontario, US
Arrival Terminal - SeaTac (SEA)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, Seattle, US
Alaska Airlines Flight Schedule from Ontario (ONT) to SeaTac (SEA)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS607 |  Alaska Airlines | 06:00 | 08:54:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
AS654 | Alaska Airlines | 10:49 | 13:42:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
AS665 | Alaska Airlines | 16:48 | 19:41:00 | Boeing 737MAX 9 Passenger |
AS594 | Alaska Airlines | 19:21 | 22:14:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
Alaska Airlines Monthly Flight Calendar
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Alaska Airlines Terminal Information
Departure Terminal at Ontario (ONT):
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Arrival Terminal at SeaTac (SEA):
• Terminal : Alaska Airlines operates from this terminal
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Alaska Airlines Contact Information and Customer Services
Alaska Airlines Address
P.O. Box 68900
Seattle, WA 98168, USA
Customer Service Phone
+1 800 654 5669Official Website
alaskaair.com/Frequently Asked Questions
How many Alaska Airlines flights operate from Ontario (ONT) to Seattle (SEA)?
Alaska Airlines operates 4 flights from Ontario (ONT) to Seattle (SEA).
What city does Seattle (SEA) airport serve?
Seattle (SEA) airport serves SeaTac, US.
How long is the Alaska Airlines flight from Ontario (ONT) to Seattle (SEA)?
The flight duration is approximately 2h 40m - 3h 07m.
What is the distance from Ontario (ONT) to Seattle (SEA)?
The distance is 962 miles (1548 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737-900 (winglets) Passenger/BBJ3, Boeing 737MAX 9 Passenger on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Delta Air Lines, Frontier Airlines.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 06:00 and the latest departs at 19:21.
View all Alaska Airlines flights to Ontario (ONT) →
Popular Alaska Airlines routes from Ontario include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.