Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

121JS

Live map

Live map filtered to 121JS. Shown when the flight is currently airborne.

Route airports View route page →

Departure

IAD KIAD MVFR

Washington Dulles International Airport

Dulles, US

Local time
10:48 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 600 ft, SCT 1,100 ft, BKN 1,500 ft, BKN 25,000 ft
Temp / Dew
25°C / 23°C
Altimeter
29.95 inHg

Obs: 2026-09-13T14:20:00.000Z

Raw METAR / TAF 
SPECI KIAD 131420Z 00000KT 10SM FEW006 SCT011 BKN015 BKN250 25/23 A2995 RMK AO2 T02500228 $

TAF KIAD 131358Z 1314/1418 23004KT P6SM BKN011 FM131500 30005KT P6SM FEW020 SCT050 FM140000 VRB03KT P6SM FEW040 SCT150 FM140600 30004KT P6SM FEW150 FM141100 33009KT P6SM FEW040 FEW150 FM141600 35012G20KT P6SM FEW040 FEW250

flight Live Traffic

flight_takeoff 171 Departures
flight_land 108 Arrivals

Arrival

BOI KBOI VFR

Boise Air Terminal/Gowen Field

Boise, US

Local time
08:48 MDT
Timezone
America/Boise
Type
Large Airport
Elevation
2,871 ft
Coordinates
43.5644, -116.2230

cloud Weather

Wind
300° / 6 kt
Visibility
10 SM
Ceiling
BKN 9,000 ft, BKN 11,000 ft
Temp / Dew
14°C / 4°C
Altimeter
29.97 inHg

Obs: 2026-09-13T13:53:00.000Z

Raw METAR / TAF 
METAR KBOI 131353Z 30006KT 10SM BKN090 BKN110 14/04 A2997 RMK AO2 SLP124 T01390039

TAF KBOI 131120Z 1312/1412 30011KT P6SM BKN080 FM132000 32014G22KT P6SM SCT080 FM140200 33006KT P6SM FEW080 FM141000 VRB04KT P6SM SKC

flight Live Traffic

flight_takeoff 49 Departures
flight_land 43 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-23 A05842 IAD → BOI Jul 23, 22:50 UTCJul 24, 03:35 UTC4h 45m - -
2026-07-22 A05842 - Jul 22, 23:55 UTCJul 23, 03:45 UTC3h 50m - -
2026-07-15 A05842 - Jul 15, 18:50 UTCJul 15, 22:30 UTC3h 40m - -
2026-07-12 A05842 BOI → MSY Jul 12, 17:10 UTCJul 12, 20:50 UTC3h 40m - -
2026-07-10 A05842 - Jul 10, 23:50 UTCJul 11, 00:25 UTC35m - -
2026-07-10 A05842 - Jul 10, 14:20 UTCJul 10, 15:15 UTC55m - -
2026-07-08 A05842 - Jul 8, 22:40 UTCJul 9, 00:50 UTC2h 10m - -
2026-07-08 A05842 - Jul 8, 17:45 UTCJul 8, 18:05 UTC20m - -
2026-07-08 A05842 - Jul 8, 13:20 UTCJul 8, 14:30 UTC1h 10m - -
2026-06-19 A05842 - Jun 19, 23:25 UTCJun 20, 00:54 UTC1h 30m - -
2026-06-19 A05842 - Jun 19, 21:14 UTCJun 19, 22:49 UTC1h 35m - -
2026-06-11 A05842 - Jun 11, 19:10 UTCJun 11, 23:05 UTC3h 55m - -
2026-06-10 A05842 - Jun 10, 17:10 UTCJun 10, 20:20 UTC3h 10m - -
2026-06-09 A05842 - Jun 9, 22:10 UTCJun 9, 22:45 UTC35m - -
2026-06-09 A05842 - Jun 9, 13:35 UTCJun 9, 14:10 UTC35m - -
2026-06-04 A05842 - Jun 4, 23:25 UTCJun 5, 00:50 UTC1h 25m - -
2026-06-01 A05842 - Jun 1, 12:55 UTCJun 1, 14:30 UTC1h 35m - -
2026-05-29 A05842 - May 29, 19:55 UTCMay 29, 21:05 UTC1h 10m - -
2026-05-29 A05842 - May 29, 17:20 UTCMay 29, 18:40 UTC1h 20m - -
2026-05-21 A05842 - May 21, 19:35 UTCMay 22, 00:25 UTC4h 50m - -
2026-05-18 A05842 - May 18, 17:10 UTCMay 18, 21:15 UTC4h 4m - -
2026-05-15 A05842 - May 15, 20:15 UTCMay 15, 20:35 UTC20m - -
2026-05-15 A05842 - May 15, 19:30 UTCMay 15, 19:40 UTC10m - -
2026-05-15 A05842 - May 15, 13:30 UTCMay 15, 13:40 UTC10m - -
2026-05-14 A05842 - May 14, 13:01 UTCMay 14, 15:25 UTC2h 25m - -
2026-05-13 A05842 - May 13, 16:55 UTCMay 13, 19:05 UTC2h 10m - -
2026-05-11 A05842 - May 11, 18:30 UTCMay 11, 20:10 UTC1h 40m - -
2026-05-11 A05842 - May 11, 16:50 UTCMay 11, 17:50 UTC1h 1m - -
2026-05-11 A05842 - May 11, 12:35 UTCMay 11, 14:15 UTC1h 40m - -
2026-05-05 A05842 - May 5, 20:01 UTCMay 5, 21:40 UTC1h 40m - -

Performance history

Flights tracked
38 showing last 30
Avg arrival delay
-
On-time arrival
-
Aircraft used
1

Monthly activity 4 months

Month Flights tracked
July 2026 9
June 2026 8
May 2026 18
April 2026 3

121JS frequently asked

Where does flight 121JS fly?
121JS flies from IAD to BOI. View the full route page.
How long is flight 121JS?
Based on observed flights, 121JS takes on average 1h 56m from takeoff to landing.
How often does 121JS fly?
121JS has been observed flying several times a week in our tracking data. We've recorded 38 flights under this callsign.
Can I track 121JS live?
Yes. When 121JS 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.