Likely delayed: there are delays at UA 2664's airports as of 6:47 PM ET. It arrived on time 83.8% of the time in June-August 2026. When it was late, the average delay was 51 minutes. None were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
Looks on time
Leg 1 of 2 (DTW → SFO): Next leg DTW → SFO, scheduled 6:34 AM local time. No delays at DTW right now, and it usually runs on time.
Cancellation risk: Medium 0% of its flights were cancelled in June-August 2026; SFO has major delays.
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 |
|---|---|---|
| DTW → SFO Detroit, MI to San Francisco, CA | 6:34 AM → 8:40 AM | 38% |
| SFO → BWI San Francisco, CA to Baltimore, MD | 9:33 AM → 5:57 PM | 90% |
Local times. Schedules change; check your booking.
How reliable is UA 2664?
| Arrived on time (within 15 min) | 83.8% |
| Average delay when late | 51 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 105 |
Best and worst days to fly UA 2664
UA 2664 was most reliable on Mondays (94% on time) and least reliable on Thursdays (69%).
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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.
Other flights SFO → BWI
All flights on this route, ranked
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 2664 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:47 PM ET. For this flight's gate and exact status, check the United app.
Is UA 2664 usually on time?
UA 2664 arrived within 15 minutes of schedule 83.8% of the time in June-August 2026, with an average delay of 51 minutes when late.
How often is UA 2664 cancelled?
0% of UA 2664 flights were cancelled in June-August 2026.