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(UA) United Airlines 2121 Flight Tracker
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Past and Upcoming Flights
For flights prior to the results below, please use our Historical Flight Status feature.
03-May
30-Apr
01-May
02-May
03-May
04-May
05-May
06-May
Flights for Wednesday, 30-Apr-2025
Departure Time
Origin
Destination
Arrival Time
16:20 CDT
IAH
Houston
SEA
Seattle
19:23 PDT
Flights for Thursday, 01-May-2025
Departure Time
Origin
Destination
Arrival Time
16:57 CDT
STL
Saint Louis
IAH
Houston
19:10 CDT
Flights for Friday, 02-May-2025
Departure Time
Origin
Destination
Arrival Time
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT
Flights for Saturday, 03-May-2025
Departure Time
Origin
Destination
Arrival Time
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT
Flights for Sunday, 04-May-2025
Departure Time
Origin
Destination
Arrival Time
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT
Flights for Monday, 05-May-2025
Departure Time
Origin
Destination
Arrival Time
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT
Flights for Tuesday, 06-May-2025
Departure Time
Origin
Destination
Arrival Time
16:50 CDT
STL
Saint Louis
IAH
Houston
19:06 CDT