Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

SEA → ONT

1,542 km avg 1h 33m 3 airlines

Departure

SEA KSEA MVFR

Seattle–Tacoma International Airport

Seattle, US

Local time
23:15 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
230° / 7 kt
Visibility
10 SM
Ceiling
OVC 2,400 ft
Temp / Dew
14°C / 9°C
Altimeter
30.08 inHg

Obs: 2026-06-29T05:53:00.000Z

Raw METAR / TAF 
METAR KSEA 290553Z 23007KT 10SM OVC024 14/09 A3008 RMK AO2 SLP191 T01390094 10194 20139 50000 $

TAF KSEA 290554Z 2906/3012 21009KT P6SM BKN025 FM290900 20009KT P6SM OVC015 FM291100 20008KT P6SM OVC010 FM291800 21006KT P6SM OVC020 FM292200 22008KT P6SM SCT020 OVC035 FM300000 23007KT P6SM SCT035 BKN050 FM300900 23008KT P6SM BKN030 BKN050

flight Live Traffic

flight_takeoff 241 Departures
flight_land 206 Arrivals

Arrival

ONT KONT VFR

Ontario International Airport

Ontario, US

Local time
23:15 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
944 ft
Coordinates
34.0560, -117.6010

cloud Weather

Wind
240° / 6 kt
Visibility
10 SM
Ceiling
FEW 2,200 ft
Temp / Dew
17°C / 13°C
Altimeter
29.87 inHg

Obs: 2026-06-29T05:53:00.000Z

Raw METAR / TAF 
METAR KONT 290553Z 24006KT 10SM FEW022 17/13 A2987 RMK AO2 SLP107 T01720133 10244 20172 51013 $

TAF KONT 290520Z 2906/3012 26007KT P6SM FEW030 FM290800 VRB04KT P6SM OVC022 FM291600 VRB05KT P6SM SCT025 FM292000 24013G21KT P6SM SKC FM300500 25011KT P6SM FEW040 FM300700 VRB04KT P6SM BKN035

flight Live Traffic

flight_takeoff 35 Departures
flight_land 41 Arrivals
Flights tracked
384 showing last 50
Avg duration
1h 33m
Distance
1,542 km

Live traffic

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

Airlines 3

Airline Flights shown
Delta Air Lines 22
Frontier Airlines 9
Alaska Airlines 3

Other connections

More destinations from SEA

More origins to ONT

Recent flights last 50

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-06-28 FFT2276 A8E76A Jun 28, 19:20 UTCJun 28, 21:20 UTC2h 0m -
2026-06-28 ASA565 A97251 Jun 28, 18:03 UTCJun 28, 19:17 UTC1h 14m -39m
2026-06-28 ASA565 A97251 Jun 28, 17:50 UTCJun 28, 19:49 UTC2h 0m -
2026-06-27 FFT2276 A8AEB6 Jun 27, 19:19 UTCJun 27, 21:19 UTC2h 0m -
2026-06-27 ASA565 A9D63B Jun 27, 18:15 UTCJun 27, 20:09 UTC1h 55m -
2026-06-27 ASA565 A9D63B Jun 27, 18:14 UTCJun 27, 20:14 UTC2h 0m -1m
2026-06-26 FFT2276 A850DC Jun 26, 19:20 UTCJun 26, 21:24 UTC2h 5m -
2026-06-26 ASA565 A51968 Jun 26, 17:44 UTCJun 26, 19:45 UTC2h 0m -
2026-06-26 ASA565 A51968 Jun 26, 17:40 UTCJun 26, 19:48 UTC2h 8m -5m
2026-06-25 ASA489 ADBA0A Jun 25, 04:14 UTCJun 25, 06:20 UTC2h 5m -
2026-06-24 FFT2276 A8785B Jun 24, 19:24 UTCJun 24, 21:34 UTC2h 10m -
2026-06-24 DAL1687 AD2384 Jun 24, 15:49 UTCJun 24, 16:54 UTC1h 5m -
2026-06-24 DAL1687 AD2384 Jun 24, 13:24 UTCJun 24, 14:29 UTC1h 5m -
2026-06-23 DAL1687 AC8588 Jun 23, 15:40 UTCJun 23, 16:44 UTC1h 5m -
2026-06-23 DAL1687 AC8588 Jun 23, 13:29 UTCJun 23, 14:39 UTC1h 10m -
2026-06-22 FFT2276 A89FDA Jun 22, 22:13 UTCJun 23, 00:33 UTC2h 20m +11m
2026-06-22 DAL1687 ACC5AA Jun 22, 15:29 UTCJun 22, 16:40 UTC1h 10m -
2026-06-22 DAL1687 ACC5AA Jun 22, 13:25 UTCJun 22, 14:29 UTC1h 5m -
2026-06-21 FFT2276 A85493 Jun 21, 19:39 UTCJun 21, 21:44 UTC2h 5m -
2026-06-21 DAL1687 A996E1 Jun 21, 15:59 UTCJun 21, 17:10 UTC1h 10m -
2026-06-21 DAL1687 A996E1 Jun 21, 13:24 UTCJun 21, 14:30 UTC1h 5m -
2026-06-21 ASA489 AD727A Jun 21, 03:50 UTCJun 21, 05:56 UTC2h 6m -7m
2026-06-20 FFT2276 A816CA Jun 20, 20:49 UTCJun 20, 22:54 UTC2h 5m -
2026-06-20 DAL1687 ACC1F3 Jun 20, 15:39 UTCJun 20, 16:44 UTC1h 5m -
2026-06-20 DAL1687 ACC1F3 Jun 20, 13:19 UTCJun 20, 14:24 UTC1h 5m -
2026-06-20 ASA489 A9672C Jun 20, 03:59 UTCJun 20, 06:19 UTC2h 20m -
2026-06-19 FFT2276 A83E49 Jun 19, 19:19 UTCJun 19, 21:39 UTC2h 20m -
2026-06-19 DAL1687 ACC961 Jun 19, 15:39 UTCJun 19, 16:44 UTC1h 5m -
2026-06-19 DAL1687 ACC961 Jun 19, 15:34 UTCJun 19, 16:40 UTC1h 6m -2m
2026-06-19 DAL1687 ACC961 Jun 19, 13:20 UTCJun 19, 14:29 UTC1h 10m -
2026-06-18 FFT2276 A81E38 Jun 18, 19:30 UTCJun 18, 21:30 UTC2h 0m -
2026-06-18 DAL1687 ACC1F3 Jun 18, 15:50 UTCJun 18, 17:00 UTC1h 10m -
2026-06-18 DAL1687 ACC1F3 Jun 18, 13:20 UTCJun 18, 14:30 UTC1h 10m -
2026-06-18 ASA489 AD4AFB Jun 18, 03:58 UTCJun 18, 06:04 UTC2h 6m +12m
2026-06-17 FFT2276 A96B65 Jun 17, 19:20 UTCJun 17, 21:25 UTC2h 5m -
2026-06-17 ASA1003 A5E339 Jun 17, 16:15 UTCJun 17, 16:25 UTC10m -
2026-06-17 DAL1687 AD5C38 Jun 17, 15:46 UTCJun 17, 16:55 UTC1h 10m -
2026-06-17 DAL1687 AD5C38 Jun 17, 13:20 UTCJun 17, 14:30 UTC1h 10m -
2026-06-16 FFT2276 A8CEC7 Jun 16, 19:25 UTCJun 16, 21:30 UTC2h 6m -
2026-06-16 FFT2276 A8CEC7 Jun 16, 19:06 UTCJun 16, 21:29 UTC2h 23m +30m
2026-06-16 ASA1003 A61BED Jun 16, 16:15 UTCJun 16, 16:25 UTC10m -
2026-06-16 DAL1687 AD34B9 Jun 16, 15:40 UTCJun 16, 16:50 UTC1h 10m -
2026-06-16 DAL1687 AD34B9 Jun 16, 13:19 UTCJun 16, 14:35 UTC1h 15m -
2026-06-15 FFT2276 A7D2F1 Jun 15, 19:30 UTCJun 15, 21:25 UTC1h 55m -
2026-06-15 FFT2276 A7D2F1 Jun 15, 19:06 UTCJun 15, 21:24 UTC2h 18m +23m
2026-06-15 DAL1687 AD5C38 Jun 15, 16:09 UTCJun 15, 17:15 UTC1h 5m -
2026-06-15 DAL1687 AD5C38 Jun 15, 16:06 UTCJun 15, 17:11 UTC1h 5m on time
2026-06-15 ASA1003 A5FF93 Jun 15, 16:04 UTCJun 15, 16:15 UTC10m -
2026-06-15 DAL1687 AD5C38 Jun 15, 13:50 UTCJun 15, 15:04 UTC1h 15m -
2026-06-15 ASA489 A61F05 Jun 15, 04:02 UTCJun 15, 06:07 UTC2h 5m +11m

SEA → ONT frequently asked

How long is the flight from SEA to ONT?
Average flight time on the SEA–ONT route is 1h 33m, covering approximately 1,542 km (958 mi).
What is the distance from SEA to ONT?
The great-circle distance from SEA to ONT is approximately 1,542 km (958 miles).
Which airlines fly from SEA to ONT?
3 airlines operate this route in our records: Delta Air Lines, Frontier Airlines, Alaska Airlines.
How many flights per week from SEA to ONT?
We've observed ~4 flights per day on this route across our tracking data (384 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.