Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

ONT → SEA

1,540 km avg 1h 22m 1 airline

Departure

ONT KONT VFR

Ontario International Airport

Ontario, US

Local time
19:51 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
944 ft
Coordinates
34.0560, -117.6010

cloud Weather

Wind
240° / 12 kt
Visibility
10 SM
Ceiling
FEW 8,000 ft
Temp / Dew
19°C / 8°C
Altimeter
30.00 inHg

Obs: 2026-04-15T01:53:00.000Z

Raw METAR / TAF 
METAR KONT 150153Z 24012KT 10SM FEW080 19/08 A3000 RMK AO2 SLP153 T01940083 $

TAF KONT 142320Z 1500/1606 25011KT P6SM FEW090 FM150500 VRB04KT P6SM FEW015 FM152100 25010KT P6SM SCT250 FM160500 VRB04KT P6SM BKN250

flight Live Traffic

flight_takeoff 48 Departures
flight_land 72 Arrivals

Arrival

SEA KSEA MVFR

Seattle–Tacoma International Airport

Seattle, US

Local time
19:51 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
190° / 20G27 kt
Visibility
5 SM
Ceiling
BKN 1,600 ft, OVC 2,200 ft
Temp / Dew
8°C / 6°C
Altimeter
29.81 inHg
Wx
-RA BR

Obs: 2026-04-15T01:53:00.000Z

Raw METAR / TAF 
METAR KSEA 150153Z 19020G27KT 5SM -RA BR BKN016 OVC022 08/06 A2981 RMK AO2 PK WND 19028/0141 SLP102 P0008 T00780056

TAF KSEA 142337Z 1500/1606 18015G26KT 6SM -RA FEW015 BKN025 OVC030 FM150400 18010G20KT P6SM VCSH SCT025 OVC035 FM150900 15009KT P6SM BKN040 FM151500 21007KT P6SM VCSH SCT025 BKN035 FM151900 22010G18KT P6SM -SHRA SCT030 BKN040 FM152300 23009KT P6SM -RA SCT025 BKN035

flight Live Traffic

flight_takeoff 232 Departures
flight_land 234 Arrivals
Flights tracked
2
Avg duration
1h 22m
Distance
1,540 km

Live traffic

ONT → SEA. Live aircraft currently filed on this route.

Airlines 1

Airline Flights shown
Alaska Airlines 1

Other connections

More destinations from ONT

More origins to SEA

Recent flights last 2

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-04-13 ASA654 A9E8CE Apr 13, 17:45 UTCApr 13, 20:00 UTC2h 15m -
2026-04-13 ASA1087 A5FF93 Apr 13, 00:25 UTCApr 13, 00:55 UTC30m -

ONT → SEA frequently asked

How long is the flight from ONT to SEA?
Average flight time on the ONT–SEA route is 1h 22m, covering approximately 1,540 km (956 mi).
What is the distance from ONT to SEA?
The great-circle distance from ONT to SEA is approximately 1,540 km (956 miles).
Which airlines fly from ONT to SEA?
1 airline operates this route in our records: Alaska Airlines.
How many flights per week from ONT to SEA?
We've observed ~2 flights per day on this route across our tracking data (2 total flights recorded).
Can I track ONT–SEA flights live?
Yes. The live tracker map above shows aircraft currently flying this route, filtered by departure and arrival airport.