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(UA) United Airlines 4639 Flight Tracker
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Past and Upcoming Flights
For flights prior to the results below, please use our Historical Flight Status feature.
01-Apr
29-Mar
30-Mar
31-Mar
01-Apr
02-Apr
03-Apr
04-Apr
Flights for Sunday, 29-Mar-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Monday, 30-Mar-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Tuesday, 31-Mar-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Wednesday, 01-Apr-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Thursday, 02-Apr-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Friday, 03-Apr-2026
Departure Time
Origin
Destination
Arrival Time
09:26 MDT
BOI
Boise
SFO
San Francisco
10:30 PDT
Flights for Saturday, 04-Apr-2026
No Flight Information Available
According to our data, this flight is not scheduled to fly on this date