No delays reported for UA 1938 (IAD → PHX) as of 6:47 PM ET. It arrived on time 73.3% of the time in June-August 2026. When it was late, the average delay was 1h 9m. 1.1% of flights were cancelled. Right now there are no reported delays at IAD, PHX.
Looks on time
Should be in the air from IAD, scheduled to land at PHX at 7:46 PM local time.
Cancellation risk: Low 1.1% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check United for official times.
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| IAD → PHX Washington, DC to Phoenix, AZ | 5:50 PM → 7:46 PM | 73% |
Local times. Schedules change; check your booking.
How reliable is UA 1938?
| Arrived on time (within 15 min) | 73.3% |
| Average delay when late | 69 min |
| Cancelled | 1.1% |
| Diverted | 1.1% |
| Flights tracked | 92 |
Best and worst days to fly UA 1938
UA 1938 was most reliable on Wednesdays (77% on time) and least reliable on Mondays (69%).
| Monday | |
| Tuesday | |
| Wednesday | |
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by United to the Department of Transportation.
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the United app.
United delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is UA 1938 delayed today?
Right now there are no reported delays at IAD, PHX. Checked 6:47 PM ET. For this flight's gate and exact status, check the United app.
Is UA 1938 usually on time?
UA 1938 arrived within 15 minutes of schedule 73.3% of the time in June-August 2026, with an average delay of 69 minutes when late.
How often is UA 1938 cancelled?
1.1% of UA 1938 flights were cancelled in June-August 2026.