Apparatus

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flight_takeoff Flight

ASA420

Operated by Alaska Airlines

Live map

Live map filtered to ASA420. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
21:07 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
10° / 9 kt
Visibility
10 SM
Ceiling
OVC 3,600 ft
Temp / Dew
13°C / 8°C
Altimeter
30.12 inHg

Obs: 2026-05-30T03:53:00.000Z

Raw METAR / TAF 
METAR KSEA 300353Z 01009KT 10SM OVC036 13/08 A3012 RMK AO2 SLP205 T01280083 $

TAF KSEA 300300Z 3003/3106 03009KT P6SM SCT050 BKN060 FM301200 14005KT P6SM BKN030 FM301900 28006KT P6SM BKN070 FM302200 31008KT P6SM SCT070 BKN250

flight Live Traffic

flight_takeoff 248 Departures
flight_land 238 Arrivals

Arrival

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
23:07 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
60° / 6 kt
Visibility
10 SM
Ceiling
BKN 25,000 ft
Temp / Dew
19°C / 11°C
Altimeter
29.97 inHg

Obs: 2026-05-30T03:51:00.000Z

Raw METAR / TAF 
METAR KORD 300351Z 06006KT 10SM BKN250 19/11 A2997 RMK AO2 SLP144 T01890111 $

TAF KORD 300237Z 3003/3106 07004KT P6SM BKN250 FM301400 08014KT P6SM BKN250

flight Live Traffic

flight_takeoff 558 Departures
flight_land 691 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 AD4AFB SEA → ORD May 29, 16:50 UTCMay 29, 22:10 UTC5h 20m - -
2026-05-28 A78C43 SEA → ORD May 28, 16:40 UTCMay 28, 22:05 UTC5h 25m - -
2026-05-27 A59D63 SEA → ORD May 27, 16:50 UTCMay 27, 22:05 UTC5h 15m - -
2026-05-26 A52E54 SEA → ORD May 26, 16:55 UTCMay 26, 22:25 UTC5h 30m - -
2026-05-25 AD2EA1 SEA → ORD May 25, 16:40 UTCMay 25, 21:49 UTC5h 10m - -
2026-05-24 A9C506 SEA → ORD May 24, 16:40 UTCMay 24, 21:45 UTC5h 5m - -
2026-05-23 A5E29A SEA → ORD May 23, 16:50 UTCMay 23, 21:50 UTC5h 1m - -
2026-05-22 A61B4E SEA → ORD May 22, 16:40 UTCMay 22, 21:55 UTC5h 15m - -
2026-05-21 A9AEBC SEA → ORD May 21, 16:45 UTCMay 21, 21:55 UTC5h 10m - -
2026-05-20 A2EBBD SEA → ORD May 20, 16:45 UTCMay 20, 21:40 UTC4h 55m - -
2026-05-19 A2DCE1 SEA → ORD May 19, 16:45 UTCMay 19, 22:00 UTC5h 15m - -
2026-05-18 A52E54 SEA → ORD May 18, 16:45 UTCMay 18, 21:40 UTC4h 54m - -
2026-05-17 A535C2 SEA → ORD May 17, 16:45 UTCMay 17, 21:50 UTC5h 5m - -
2026-05-16 A21ED4 SEA → ORD May 16, 16:40 UTCMay 16, 21:45 UTC5h 5m - -
2026-05-15 ACB824 SEA → ORD May 15, 16:55 UTCMay 15, 21:45 UTC4h 50m - -
2026-05-14 A2E806 SEA → ORD May 14, 16:45 UTCMay 14, 21:35 UTC4h 50m - -
2026-05-12 AD7631 SEA → ORD May 12, 22:35 UTCMay 13, 03:02 UTC4h 27m +28m +1m
2026-05-12 AD7631 SEA → ORD May 12, 22:20 UTCMay 13, 03:05 UTC4h 45m - -
2026-05-12 AD7631 SEA → ORD May 12, 02:45 UTCMay 12, 03:10 UTC25m - -
2026-05-10 A779B0 SEA → ORD May 10, 22:40 UTCMay 11, 03:25 UTC4h 45m - -
2026-05-09 AD2733 SEA → ORD May 9, 22:25 UTCMay 10, 03:14 UTC4h 50m - -
2026-05-08 AD2733 SEA → ORD May 8, 22:25 UTCMay 9, 03:15 UTC4h 50m - -
2026-05-07 AB1842 SEA → ORD May 7, 22:15 UTCMay 8, 02:55 UTC4h 40m - -
2026-05-06 AD9642 SEA → ORD May 6, 22:30 UTCMay 7, 03:35 UTC5h 5m - -
2026-05-05 A6AA6E SEA → ORD May 5, 22:20 UTCMay 6, 03:05 UTC4h 44m - -
2026-05-04 A96E9A SEA → ORD May 4, 22:15 UTCMay 5, 02:50 UTC4h 35m - -
2026-05-03 AAF831 SEA → ORD May 3, 22:49 UTCMay 4, 03:45 UTC4h 55m - -
2026-05-02 A4F5A0 SEA → ORD May 2, 22:20 UTCMay 3, 03:15 UTC4h 55m - -
2026-05-01 A2FCF2 SEA → ORD May 1, 22:25 UTCMay 2, 03:30 UTC5h 5m - -
2026-04-30 AB3C0A SEA → ORD Apr 30, 22:25 UTCMay 1, 03:05 UTC4h 40m - -

Performance history

Flights tracked
58 showing last 30
Avg arrival delay
+1m
On-time arrival
100% 100% on time
Aircraft used
26

Monthly activity 2 months

Month Flights tracked
May 2026 29
April 2026 29

ASA420 frequently asked

Where does flight ASA420 fly?
ASA420 (Alaska Airlines) flies from SEA to ORD. View the full route page.
How long is flight ASA420?
Based on observed flights, ASA420 takes on average 4h 50m from takeoff to landing.
How often does ASA420 fly?
ASA420 has been observed flying daily in our tracking data. We've recorded 58 flights under this callsign.
Is flight ASA420 usually on time?
Across recent flights, ASA420 arrives with an average 1-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight ASA420?
ASA420 has been operated by 26 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track ASA420 live?
Yes. When ASA420 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.