5 Feb
UA3939
LANDED 9d AGO
15:43
Seattle, WA (SEA)
19:25
Chicago, IL (ORD)
03h42m
N17244 (B738)
2763 km
Departed
15:43
1 week ago
Arrived
19:25
1 week ago
UA3939
UAL3939
LANDED 9d AGO
Thursday, February 5 2026
07:43 PST
DELAYED
Scheduled 07:00
Thursday, February 5 2026
13:25 CST
ON-TIME
Estimated 14:33
Flight info
Airline/Operator
Duration
03h42m
Distance
2763 km
Operation Days
Sun
Mon
Tue
Wed
Thu
Fri
Sat
ATC Route
KSEA.MONTN2.SEA..NORMY.J90.MWH.J34.HLN.J90.ABR.J90.RWF.J34.BAE..HASTE.BRWNZ4.KCLE/0353
Position Info
Latitude
-
Longitude
-
Altitude
-
Ground Speed
Wind
Air Temperature
Vertical Speed
Heading
-
Squawk
-
Source
-
Station
-
FIR
Aircraft Info
Aircraft Model
Registration
Mode-S
Serial Number
28954/409
Aircraft Age
Owner
Last Activity
3 minutes ago
Last Known Location
In flight - Near Socorro, NM, United States
Last Flight
Aircraft Type
Nr. Engines
Nr. Seats
Weight Class
Cruising Speed
Engine
Engine Type
Aircraft Category
Registrant Type
Airworthiness Class
Operation Types
Certificate Issue Date
Registration Status
Flight Activity
  • 9 Feb
    UA3939
    LANDED 4d AGO
    16:22
    Houston, TX (IAH)
    20:01
    San Francisco, CA (SFO)
    03h35m
    N27957 (B789)
    2628 km
    Departed
    16:22
    5 days ago
    Arrived
    20:01
    5 days ago
  • 5 Feb
    UA3939
    LANDED 9d AGO
    15:43
    Seattle, WA (SEA)
    19:25
    Chicago, IL (ORD)
    03h42m
    N17244 (B738)
    2763 km
    Departed
    15:43
    1 week ago
    Arrived
    19:25
    1 week ago
DateOriginSTDATDDestinationSTAAircraftDelayStatusDurationReplay
2026 Feb 9Houston, TX (IAH/KIAH)
10:00 CST
10:22 CST
San Francisco, CA (SFO/KSFO)B789 (N27957)
Landed 12:01 PST
Time aircraft arrives at gate derived from company/airport information
03h35m
2026 Feb 5Seattle, WA (SEA/KSEA)
07:00 PST
07:43 PST
Chicago, IL (ORD/KORD)
14:33 CST
B738 (N17244)
Landed 13:25 CST
Landing time derived from ADS-B/Radar data
03h42m

Flight history for UA3939 is available for a period over 7 days under our Basic subscription. More details here
More airport data is available for purchase. Please check our On Demand API.