Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

SEA → ONT

122 km avg 3h 17m 3 airlines

Departure

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
21:33 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
10° / 10 kt
Visibility
10 SM
Ceiling
SCT 5,000 ft, BKN 7,000 ft
Temp / Dew
18°C / 11°C
Altimeter
30.00 inHg

Obs: 2026-08-29T03:53:00.000Z

Raw METAR / TAF 
METAR KSEA 290353Z 01010KT 10SM SCT050 BKN070 18/11 A3000 RMK AO2 SLP164 T01780111 $

TAF KSEA 290357Z 2904/3006 01008KT P6SM SCT050 BKN070 FM290800 19007KT P6SM -SHRA OVC030 FM291100 19006KT P6SM -SHRA BKN025 OVC030 FM291800 21007KT P6SM -SHRA SCT020 OVC030 FM292000 23008KT P6SM -SHRA SCT025 BKN040

flight Live Traffic

flight_takeoff 218 Departures
flight_land 221 Arrivals

Arrival

ONT KONT VFR

Ontario International Airport

Ontario, US

Local time
21:33 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
944 ft
Coordinates
34.0560, -117.6010

cloud Weather

Wind
240° / 5 kt
Visibility
10 SM
Ceiling
CLR
Temp / Dew
31°C / 17°C
Altimeter
29.86 inHg

Obs: 2026-08-29T03:53:00.000Z

Raw METAR / TAF 
METAR KONT 290353Z 24005KT 10SM CLR 31/17 A2986 RMK AO2 SLP091 T03060172 $

TAF KONT 282335Z 2900/3006 25012G20KT P6SM SCT090 SCT150 FM290300 25008KT P6SM SCT200 FM290600 VRB04KT P6SM FEW200 FM292000 25012G20KT P6SM BKN200 FM300300 25008KT P6SM SCT200

flight Live Traffic

flight_takeoff 34 Departures
flight_land 37 Arrivals
Flights tracked
557 showing last 50
Avg duration
3h 17m
Distance
122 km

Live traffic

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

Airlines 3

Airline Flights shown
Alaska Airlines 21
Delta Air Lines 16
Frontier Airlines 2

Recent flights last 50

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-07-26 ASA1086 A5FF93 Jul 26, 21:45 UTCJul 26, 22:00 UTC15m -
2026-07-26 ASA119 AA98A4 Jul 26, 21:45 UTCJul 26, 22:20 UTC35m -
2026-07-26 FFT2276 A8F9FD Jul 26, 19:25 UTCJul 26, 21:15 UTC1h 50m -
2026-07-26 DAL1687 AD876E Jul 26, 15:30 UTCJul 26, 16:45 UTC1h 15m -
2026-07-26 DAL1687 AD876E Jul 26, 13:20 UTCJul 26, 14:20 UTC1h 0m -
2026-07-26 ASA120 AAA012 Jul 26, 10:45 UTCJul 26, 20:10 UTC9h 25m -
2026-07-25 ASA1086 A5F825 Jul 25, 21:40 UTCJul 25, 22:00 UTC20m -
2026-07-25 ASA119 AAA012 Jul 25, 21:30 UTCJul 26, 08:50 UTC11h 21m -
2026-07-25 FFT2276 A97C9A Jul 25, 19:20 UTCJul 25, 21:35 UTC2h 15m -
2026-07-25 DAL1687 ACF84E Jul 25, 18:30 UTCJul 25, 20:10 UTC1h 40m -
2026-07-25 DAL1687 ACF84E Jul 25, 18:29 UTCJul 25, 20:05 UTC1h 36m +27m
2026-07-25 ASA1003 A6235B Jul 25, 16:15 UTCJul 25, 16:25 UTC10m -
2026-07-25 DAL1687 ACF84E Jul 25, 16:00 UTCJul 25, 17:00 UTC1h 0m -
2026-07-25 ASA120 AA9C5B Jul 25, 11:00 UTCJul 25, 20:50 UTC9h 50m -
2026-07-24 ASA1086 A60701 Jul 24, 21:35 UTCJul 24, 21:55 UTC20m -
2026-07-24 ASA119 AA9C5B Jul 24, 21:25 UTCJul 25, 08:15 UTC10h 50m -
2026-07-24 FFT2276 A7D2F1 Jul 24, 19:05 UTCJul 24, 21:25 UTC2h 20m -
2026-07-24 ASA1003 A61BED Jul 24, 16:20 UTCJul 24, 16:30 UTC10m -
2026-07-24 DAL1687 ADC180 Jul 24, 15:45 UTCJul 24, 17:00 UTC1h 15m -
2026-07-24 DAL1687 ADC180 Jul 24, 15:42 UTCJul 24, 16:56 UTC1h 14m +10m
2026-07-24 DAL1687 ADC180 Jul 24, 13:20 UTCJul 24, 14:25 UTC1h 5m -
2026-07-24 ASA120 AAA012 Jul 24, 11:05 UTCJul 24, 20:50 UTC9h 45m -
2026-07-23 ASA1086 A5DBCB Jul 23, 21:45 UTCJul 23, 22:05 UTC20m -
2026-07-23 ASA119 AAA012 Jul 23, 21:25 UTCJul 24, 07:55 UTC10h 30m -
2026-07-23 FFT2276 A96B65 Jul 23, 19:15 UTCJul 23, 21:25 UTC2h 10m -
2026-07-23 DAL1687 AD5C38 Jul 23, 15:55 UTCJul 23, 17:05 UTC1h 10m -
2026-07-23 SKW4070 A35B0B Jul 23, 16:00 UTCJul 23, 18:15 UTC2h 15m -
2026-07-23 DAL1687 AD5C38 Jul 23, 13:35 UTCJul 23, 14:40 UTC1h 5m -
2026-07-23 ASA120 AA9C5B Jul 23, 11:05 UTCJul 23, 20:55 UTC9h 50m -
2026-07-22 ASA1086 A61FA4 Jul 22, 21:45 UTCJul 22, 22:05 UTC20m -
2026-07-22 ASA119 AA9C5B Jul 22, 21:45 UTCJul 23, 08:15 UTC10h 30m -
2026-07-22 ASA1003 A5F825 Jul 22, 16:10 UTCJul 22, 16:20 UTC10m -
2026-07-22 DAL1687 ACD0CF Jul 22, 15:45 UTCJul 22, 16:55 UTC1h 10m -
2026-07-22 SKW4070 A34C2F Jul 22, 16:00 UTCJul 22, 18:20 UTC2h 20m -
2026-07-22 DAL1687 ACD0CF Jul 22, 13:35 UTCJul 22, 14:35 UTC1h 0m -
2026-07-22 ASA120 AAA012 Jul 22, 11:10 UTCJul 22, 21:20 UTC10h 10m -
2026-07-22 ASA1086 A60AB8 Jul 22, 00:10 UTCJul 22, 00:30 UTC20m -
2026-07-21 SKW4031 A29E5C Jul 21, 22:05 UTCJul 22, 00:35 UTC2h 30m -
2026-07-21 FFT2276 A7DA5F Jul 21, 19:35 UTCJul 21, 21:45 UTC2h 10m -
2026-07-21 DAL1687 ADDA23 Jul 21, 15:30 UTCJul 21, 16:40 UTC1h 10m -
2026-07-21 SKW4070 A231A6 Jul 21, 15:45 UTCJul 21, 18:10 UTC2h 25m -
2026-07-21 DAL1687 ADDA23 Jul 21, 13:15 UTCJul 21, 14:20 UTC1h 5m -
2026-07-21 SKW3884 A2F721 Jul 21, 03:45 UTCJul 21, 06:00 UTC2h 15m -
2026-07-20 SKW4031 A27A94 Jul 20, 22:00 UTCJul 21, 00:15 UTC2h 14m -
2026-07-20 ASA119 AAA012 Jul 20, 21:35 UTCJul 21, 08:35 UTC11h 0m -
2026-07-20 FFT2276 A801DE Jul 20, 19:20 UTCJul 20, 21:35 UTC2h 15m -
2026-07-20 DAL1687 ACA950 Jul 20, 15:35 UTCJul 20, 16:50 UTC1h 15m -
2026-07-20 SKW4070 A2644A Jul 20, 15:50 UTCJul 20, 18:10 UTC2h 20m -
2026-07-20 DAL1687 ACA950 Jul 20, 13:20 UTCJul 20, 14:20 UTC1h 0m -
2026-07-20 ASA120 AA9C5B Jul 20, 10:50 UTCJul 20, 20:35 UTC9h 45m -

SEA → ONT frequently asked

How long is the flight from SEA to ONT?
Average flight time on the SEA–ONT route is 3h 17m, covering approximately 122 km (76 mi).
What is the distance from SEA to ONT?
The great-circle distance from SEA to ONT is approximately 122 km (76 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 ~7 flights per day on this route across our tracking data (557 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.