🇺🇸 SEA
Seattle
1316 mi
ONT 🇺🇸
Ontario

Seattle to Ontario Flights

Seattle–Tacoma International Airport Ontario International Airport 4 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The Seattle to Ontario route connects Seattle–Tacoma International Airport (SEA) in US with Ontario International Airport (ONT) in US. This medium-haul flight covers approximately 1316 miles (2118 km) with a typical flight time of 2h 10m. This route is served by 4 airlines: SkyWest, Alaska Airlines, Frontier and others. AirportRoutes has tracked 12 unique flight numbers on this route.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search SEA → ONT flights

Opens a live price search — just pick your dates

Departure Airport

Seattle–Tacoma International Airport

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

Destination Airport

Ontario International Airport

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

4

Operators

12

Tracked Flights

1316

Miles

2h 10m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
SkyWest SKW OO
Alaska Airlines ASA AS
Frontier FFT F9
Volaris VOI Y4

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 9 11%
Tuesday 10 12%
Wednesday 6 8%
Thursday 13 16%
Friday 17 21%
Saturday 14 18%
Sunday 11 14%

Pattern Analysis

12 Tracked Flights:
Data Points: 80
API observations used to build this analysis
Weekdays: 55 flights
Weekend: 25 flights
Business Route More active on weekdays

All Flight Routes

4 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
B737 21:17 9:17 PM (Representative)
M T W T F S S
Aug 17, 2026 Active
Frontier
FFT / F9
A21N 11:51 11:51 AM (Representative)
M T W T F S S
Aug 17, 2026 Active
SkyWest
SKW / OO
B39M 20:33 8:33 PM (Representative)
M T W T F S S
Aug 17, 2026 Active
Volaris
VOI / Y4
A321 10:51 10:51 AM (Representative)
M T W T F S S
Aug 17, 2026 Active
Total Routes: 4
Active Routes: 4
Unique Airlines: 4
Aircraft Types: 4

Spotted Departure Times

Departure Time Operator ICAO IATA
10:51 10:51 AM Volaris VOI Y4
11:51 11:51 AM Frontier FFT F9
20:33 8:33 PM SkyWest SKW OO
21:17 9:17 PM Alaska Airlines ASA AS

Time Information

Times are shown in the departure airport's local timezone (KSEA - America/Los_Angeles).

Total Departure Times: 4
Time Range:
10:51 - 21:17
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.