Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

ONT → SEA

262 km avg 1h 11m 4 airlines

Departure

ONT KONT VFR

Ontario International Airport

Ontario, US

Local time
03:25 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
14°C / 10°C
Altimeter
30.00 inHg

Obs: 2026-05-30T09:53:00.000Z

Raw METAR / TAF 
METAR KONT 300953Z 00000KT 10SM CLR 14/10 A3000 RMK AO2 SLP153 T01390100 $

TAF KONT 300520Z 3006/3112 25005KT P6SM FEW015 SCT050 TEMPO 3012/3016 BKN015 FM302100 25011G18KT P6SM FEW100 FM310400 VRB04KT P6SM SKC

flight Live Traffic

flight_takeoff 20 Departures
flight_land 23 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
03:25 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
60° / 6 kt
Visibility
10 SM
Ceiling
BKN 4,400 ft
Temp / Dew
9°C / 5°C
Altimeter
30.20 inHg

Obs: 2026-05-30T09:53:00.000Z

Raw METAR / TAF 
METAR KSEA 300953Z 06006KT 10SM BKN044 09/05 A3020 RMK AO2 SLP231 T00890050 $

TAF KSEA 300902Z 3009/3112 06006KT P6SM BKN040 OVC050 FM301200 14005KT P6SM BKN030 OVC040 FM301900 28006KT P6SM BKN070 FM302200 31008KT P6SM SCT070 BKN250

flight Live Traffic

flight_takeoff 144 Departures
flight_land 152 Arrivals
Flights tracked
124 showing last 50
Avg duration
1h 11m
Distance
262 km

Live traffic

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

Airlines 4

Airline Flights shown
Delta Air Lines 23
Alaska Airlines 15
Frontier Airlines 9
Air Transport International 3

Other connections

More destinations from ONT

More origins to SEA

Recent flights last 50

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-05-30 ASA1087 A6034A May 30, 00:20 UTCMay 30, 00:50 UTC30m -
2026-05-29 FFT2275 A8295D May 29, 23:05 UTCMay 30, 01:15 UTC2h 10m -
2026-05-29 DAL2579 ACA22E May 29, 11:15 UTCMay 29, 12:35 UTC1h 20m -
2026-05-29 ASA1087 A61FA4 May 29, 00:30 UTCMay 29, 00:55 UTC25m -
2026-05-29 FFT2275 A89FDA May 29, 00:25 UTCMay 29, 02:55 UTC2h 30m -
2026-05-28 DAL2579 A98539 May 28, 11:20 UTCMay 28, 12:40 UTC1h 20m -
2026-05-28 DAL2579 A98539 May 28, 11:19 UTCMay 28, 12:38 UTC1h 19m -2m
2026-05-28 ATN6787 A25B4D May 28, 11:05 UTCMay 28, 11:20 UTC15m -
2026-05-28 ASA1087 A6235B May 28, 00:15 UTCMay 28, 00:45 UTC30m -
2026-05-27 DAL2579 AC3477 May 27, 11:15 UTCMay 27, 12:50 UTC1h 35m -
2026-05-27 ASA1087 A5DBCB May 27, 00:34 UTCMay 27, 00:44 UTC10m -
2026-05-26 FFT2275 A992E4 May 26, 15:20 UTCMay 26, 18:05 UTC2h 45m -
2026-05-26 DAL2579 AC382E May 26, 13:29 UTCMay 26, 14:14 UTC45m -
2026-05-26 DAL2579 AC382E May 26, 13:25 UTCMay 26, 14:13 UTC48m +13m
2026-05-26 DAL2579 AC382E May 26, 11:09 UTCMay 26, 12:14 UTC1h 5m -
2026-05-26 ASA1087 A60701 May 26, 00:14 UTCMay 26, 00:44 UTC30m -
2026-05-25 DAL2579 AC0CF8 May 25, 11:10 UTCMay 25, 12:45 UTC1h 35m -
2026-05-25 DAL2579 AC0CF8 May 25, 11:08 UTCMay 25, 12:40 UTC1h 32m +12m
2026-05-24 FFT2275 A850DC May 24, 23:10 UTCMay 24, 23:46 UTC36m -
2026-05-24 ATN6787 A22A07 May 24, 16:10 UTCMay 24, 16:55 UTC45m -
2026-05-24 DAL2579 AC85CE May 24, 11:10 UTCMay 24, 12:40 UTC1h 30m -
2026-05-24 ASA1087 A5E949 May 24, 00:20 UTCMay 24, 00:45 UTC25m -
2026-05-23 FFT2275 A8F646 May 23, 23:05 UTCMay 24, 01:20 UTC2h 15m -
2026-05-23 FFT2275 A8F646 May 23, 23:17 UTCMay 24, 01:20 UTC2h 3m +9m
2026-05-23 DAL2579 A33D62 May 23, 11:35 UTCMay 23, 13:05 UTC1h 30m -
2026-05-23 DAL2579 A33D62 May 23, 11:33 UTCMay 23, 13:04 UTC1h 31m +11m
2026-05-23 ASA1087 A1D7EA May 23, 02:40 UTCMay 23, 03:10 UTC30m -
2026-05-22 FFT2275 A8B4C6 May 22, 23:17 UTCMay 23, 01:31 UTC2h 14m +14m
2026-05-22 FFT2275 A8B4C6 May 22, 23:15 UTCMay 23, 01:35 UTC2h 20m -
2026-05-22 DAL2579 AC50D1 May 22, 11:35 UTCMay 22, 12:50 UTC1h 15m -
2026-05-22 ASA1087 A6147F May 22, 00:10 UTCMay 22, 00:45 UTC35m -
2026-05-21 FFT2275 A88737 May 21, 23:10 UTCMay 22, 01:30 UTC2h 20m -
2026-05-21 DAL2579 ABDE0B May 21, 11:35 UTCMay 21, 12:55 UTC1h 20m -
2026-05-21 ASA1087 A61FA4 May 21, 00:55 UTCMay 21, 01:25 UTC30m -
2026-05-20 DAL2579 AB4B34 May 20, 11:15 UTCMay 20, 12:35 UTC1h 20m -
2026-05-20 ASA1087 A60701 May 20, 00:20 UTCMay 20, 00:50 UTC30m -
2026-05-19 DAL2579 AD3C78 May 19, 11:15 UTCMay 19, 12:35 UTC1h 20m -
2026-05-19 ASA1087 A61FA4 May 19, 00:30 UTCMay 19, 01:00 UTC30m -
2026-05-18 DAL2579 AB3133 May 18, 11:15 UTCMay 18, 12:40 UTC1h 25m -
2026-05-18 DAL2579 AB3133 May 18, 11:15 UTCMay 18, 12:39 UTC1h 24m +10m
2026-05-18 ASA1087 A61BED May 18, 00:20 UTCMay 18, 00:55 UTC35m -
2026-05-17 DAL2579 A4417D May 17, 11:15 UTCMay 17, 12:35 UTC1h 20m -
2026-05-17 ASA1087 A6034A May 17, 00:15 UTCMay 17, 00:45 UTC30m -
2026-05-16 DAL2579 A402DD May 16, 11:21 UTCMay 16, 12:40 UTC1h 20m -
2026-05-16 DAL2579 A402DD May 16, 11:15 UTCMay 16, 12:36 UTC1h 21m +3m
2026-05-16 ASA1087 A5FF93 May 16, 00:40 UTCMay 16, 01:20 UTC40m -
2026-05-15 DAL2579 AC0CF8 May 15, 11:10 UTCMay 15, 12:35 UTC1h 25m -
2026-05-15 ATN6787 A4CE28 May 15, 09:50 UTCMay 15, 10:45 UTC55m -
2026-05-15 ASA1087 A60701 May 15, 00:35 UTCMay 15, 01:10 UTC35m -
2026-05-14 DAL2579 ACA5E5 May 14, 11:10 UTCMay 14, 12:35 UTC1h 25m -

ONT → SEA frequently asked

How long is the flight from ONT to SEA?
Average flight time on the ONT–SEA route is 1h 11m, covering approximately 262 km (163 mi).
What is the distance from ONT to SEA?
The great-circle distance from ONT to SEA is approximately 262 km (163 miles).
Which airlines fly from ONT to SEA?
4 airlines operate this route in our records: Delta Air Lines, Alaska Airlines, Frontier Airlines, Air Transport International.
How many flights per week from ONT to SEA?
We've observed ~3 flights per day on this route across our tracking data (124 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.