Ontario to Seattle Flights ONT → SEA

Ontario International Airport → Seattle–Tacoma International Airport

🇺🇸 Ontario, US → 🇺🇸 Seattle, US

The Ontario to Seattle route connects Ontario International Airport (ONT) in US with Seattle–Tacoma International Airport (SEA) in US. This short-haul flight covers approximately 958 miles (1542 km). This route is served by 3 airlines: SkyWest, Alaska Airlines, Frontier.

Departure Airport

Ontario International Airport

ICAO Code:
KONT
IATA Code:
ONT
City:
🇺🇸 Ontario
Country:
US
Elevation:
944 ft

Destination Airport

Seattle–Tacoma International Airport

ICAO Code:
KSEA
IATA Code:
SEA
City:
🇺🇸 Seattle
Country:
US
Elevation:
433 ft

3

Operators

3

Routes Tracked

958

Miles

-

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
SkyWest SKW OO
Alaska Airlines ASA AS
Frontier FFT F9

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 2 12%
Tuesday 1 6%
Wednesday 0 0%
Thursday 9 53%
Friday 1 6%
Saturday 0 0%
Sunday 4 24%

Pattern Analysis

Data Points: 17
API observations used to build this analysis
Weekdays: 13 flights
Weekend: 4 flights
Business Route More active on weekdays

All Flight Routes

3 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
- B739 -
M T W T F S S
Jul 27, 2025 Active
Frontier
FFT / F9
- A20N -
M T W T F S S
Jul 22, 2025 Active
SkyWest
SKW / OO
- E75L -
M T W T F S S
Jul 27, 2025 Active
Total Routes: 3
Active Routes: 3
Unique Airlines: 3
Aircraft Types: 3

Spotted Departure Times

No departure times available

Departure times will be populated as flight data is collected for this route.