Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

SEA → ONT

670 km avg 3h 6m 3 airlines

Departure

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
05:37 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
110° / 5 kt
Visibility
10 SM
Ceiling
FEW 1,200 ft, SCT 5,000 ft, SCT 25,000 ft
Temp / Dew
8°C / 7°C
Altimeter
30.21 inHg

Obs: 2026-05-30T11:53:00.000Z

Raw METAR / TAF 
METAR KSEA 301153Z 11005KT 10SM FEW012 SCT050 SCT250 08/07 A3021 RMK AO2 SLP236 60011 70026 T00830067 10111 20083 51007 $

TAF KSEA 301120Z 3012/3118 09006KT P6SM FEW015 OVC050 FM301500 14005KT P6SM BKN030 OVC040 FM301900 28006KT P6SM BKN070 FM302200 31008KT P6SM SCT070 BKN250 FM310200 02009KT P6SM BKN250 FM310800 03007KT P6SM BKN250

flight Live Traffic

flight_takeoff 226 Departures
flight_land 255 Arrivals

Arrival

ONT KONT VFR

Ontario International Airport

Ontario, US

Local time
05:37 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
944 ft
Coordinates
34.0560, -117.6010

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
13°C / 10°C
Altimeter
30.01 inHg

Obs: 2026-05-30T11:53:00.000Z

Raw METAR / TAF 
METAR KONT 301153Z 00000KT 10SM CLR 13/10 A3001 RMK AO2 SLP155 T01330100 10156 20128 55002 $

TAF KONT 301122Z 3012/3118 25005KT P6SM SKC FM302100 25011G18KT P6SM SKC FM310400 VRB04KT P6SM SKC

flight Live Traffic

flight_takeoff 46 Departures
flight_land 33 Arrivals
Flights tracked
222 showing last 50
Avg duration
3h 6m
Distance
670 km

Live traffic

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

Airlines 3

Airline Flights shown
Alaska Airlines 34
Delta Air Lines 9
Frontier Airlines 7

Other connections

More destinations from SEA

More origins to ONT

Recent flights last 50

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-05-30 ASA120 AA9136 May 30, 10:45 UTCMay 30, 11:30 UTC45m -
2026-05-30 ASA1118 A5FBDC May 30, 01:05 UTCMay 30, 01:30 UTC25m -
2026-05-30 DAL1687 A7B40E May 30, 00:55 UTCMay 30, 03:00 UTC2h 5m -
2026-05-29 ASA1086 A6034A May 29, 21:45 UTCMay 29, 22:05 UTC20m -
2026-05-29 ASA119 AA9136 May 29, 21:05 UTCMay 30, 08:00 UTC10h 55m -
2026-05-29 FFT2276 A8D635 May 29, 19:25 UTCMay 29, 21:25 UTC2h 0m -
2026-05-29 ASA1003 A5DBCB May 29, 16:10 UTCMay 29, 16:25 UTC15m -
2026-05-29 ASA120 AA94ED May 29, 11:15 UTCMay 29, 20:40 UTC9h 25m -
2026-05-29 ASA1118 A6235B May 29, 01:50 UTCMay 29, 02:15 UTC25m -
2026-05-29 DAL1687 A7A532 May 29, 00:50 UTCMay 29, 03:05 UTC2h 15m -
2026-05-28 ASA1086 A61FA4 May 28, 21:45 UTCMay 28, 22:00 UTC15m -
2026-05-28 ASA119 AA94ED May 28, 21:25 UTCMay 29, 08:35 UTC11h 10m -
2026-05-28 FFT2276 A88D47 May 28, 19:10 UTCMay 28, 21:20 UTC2h 10m -
2026-05-28 FFT2276 A88D47 May 28, 19:04 UTCMay 28, 21:17 UTC2h 13m +22m
2026-05-28 ASA1003 A5FF93 May 28, 16:10 UTCMay 28, 16:20 UTC10m -
2026-05-28 ASA120 AA98A4 May 28, 10:50 UTCMay 28, 20:35 UTC9h 45m -
2026-05-28 DAL1687 A7D2BC May 28, 01:20 UTCMay 28, 03:30 UTC2h 10m -
2026-05-28 ASA1118 A61BED May 28, 01:00 UTCMay 28, 01:25 UTC25m -
2026-05-27 ASA1086 A6235B May 27, 21:55 UTCMay 27, 22:15 UTC20m -
2026-05-27 ASA119 AA98A4 May 27, 21:05 UTCMay 28, 08:10 UTC11h 5m -
2026-05-27 ASA1003 A5DBCB May 27, 16:45 UTCMay 27, 16:55 UTC10m -
2026-05-27 ASA120 AAA012 May 27, 10:45 UTCMay 27, 20:25 UTC9h 40m -
2026-05-27 ASA1118 A60701 May 27, 00:55 UTCMay 27, 01:24 UTC30m -
2026-05-27 DAL1687 A7816A May 27, 00:14 UTCMay 27, 02:19 UTC2h 5m -
2026-05-26 ASA1086 A5DBCB May 26, 22:09 UTCMay 26, 22:25 UTC15m -
2026-05-26 ASA1003 A6034A May 26, 16:15 UTCMay 26, 16:24 UTC10m -
2026-05-26 ASA1118 A610C8 May 26, 00:54 UTCMay 26, 01:20 UTC25m -
2026-05-26 DAL1687 A76C79 May 26, 00:19 UTCMay 26, 02:35 UTC2h 15m -
2026-05-25 ASA1086 A60701 May 25, 21:49 UTCMay 25, 22:10 UTC20m -
2026-05-25 ASA119 AAA012 May 25, 21:15 UTCMay 26, 08:10 UTC10h 55m -
2026-05-25 FFT2276 A84D25 May 25, 19:15 UTCMay 25, 21:24 UTC2h 10m -
2026-05-25 ASA1003 A5DBCB May 25, 16:15 UTCMay 25, 16:25 UTC10m -
2026-05-25 ASA120 AA94ED May 25, 11:05 UTCMay 25, 20:55 UTC9h 50m -
2026-05-25 ASA119 AA94ED May 25, 07:00 UTCMay 25, 09:00 UTC2h 0m -
2026-05-25 DAL1687 A64578 May 25, 02:00 UTCMay 25, 03:05 UTC1h 5m -
2026-05-24 ASA119 AA94ED May 24, 21:35 UTCMay 24, 21:50 UTC15m -
2026-05-24 FFT2276 A7FA70 May 24, 19:10 UTCMay 24, 21:20 UTC2h 10m -
2026-05-24 FFT2276 A7FA70 May 24, 19:04 UTCMay 24, 21:15 UTC2h 11m +14m
2026-05-24 ASA120 AA9C5B May 24, 10:45 UTCMay 24, 20:10 UTC9h 25m -
2026-05-24 ASA1118 A5DBCB May 24, 01:15 UTCMay 24, 01:40 UTC25m -
2026-05-24 DAL1687 A7650B May 24, 00:21 UTCMay 24, 02:29 UTC2h 8m +17m
2026-05-24 DAL1687 A7650B May 24, 00:25 UTCMay 24, 02:35 UTC2h 10m -
2026-05-23 ASA1086 A5E949 May 23, 21:45 UTCMay 23, 22:05 UTC20m -
2026-05-23 ASA119 AA9C5B May 23, 21:25 UTCMay 24, 08:20 UTC10h 55m -
2026-05-23 FFT2276 A21BA0 May 23, 19:10 UTCMay 23, 21:20 UTC2h 10m -
2026-05-23 ASA1003 A6034A May 23, 16:10 UTCMay 23, 16:20 UTC10m -
2026-05-23 ASA120 AAA012 May 23, 10:40 UTCMay 23, 19:55 UTC9h 15m -
2026-05-23 ASA1118 A5F825 May 23, 01:25 UTCMay 23, 01:55 UTC30m -
2026-05-23 DAL1687 A75634 May 23, 00:45 UTCMay 23, 02:50 UTC2h 4m -
2026-05-22 ASA1086 A1D7EA May 22, 23:40 UTCMay 23, 00:00 UTC20m -

SEA → ONT frequently asked

How long is the flight from SEA to ONT?
Average flight time on the SEA–ONT route is 3h 6m, covering approximately 670 km (416 mi).
What is the distance from SEA to ONT?
The great-circle distance from SEA to ONT is approximately 670 km (416 miles).
Which airlines fly from SEA to ONT?
3 airlines operate this route in our records: Alaska Airlines, Delta Air Lines, Frontier Airlines.
How many flights per week from SEA to ONT?
We've observed ~6 flights per day on this route across our tracking data (222 total flights recorded).
Can I track SEA–ONT flights live?
Yes. The live tracker map above shows aircraft currently flying this route, filtered by departure and arrival airport.