No delays reported for AA 634 (MSN → PHX) as of 6:43 PM ET. It arrived on time 92.3% of the time in June-August 2026. When it was late, the average delay was 8h 20m. None were cancelled. Right now there are no reported delays at MSN, PHX.
Looks on time
Next leg MSN → PHX, scheduled 8:00 AM local time. No delays at MSN right now, and it usually runs on time.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check American Airlines for official times.
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| MSN → PHX Madison, WI to Phoenix, AZ | 8:00 AM → 9:32 AM | 92% |
Local times. Schedules change; check your booking.
How reliable is AA 634?
| Arrived on time (within 15 min) | 92.3% |
| Average delay when late | 500 min |
| Cancelled | 0% |
| Diverted | 1.1% |
| Flights tracked | 92 |
Best and worst days to fly AA 634
AA 634 was most reliable on Wednesdays (100% on time) and least reliable on Saturdays (85%).
| 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 American Airlines to the Department of Transportation.
Other flights MSN → PHX
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 American Airlines app.
American Airlines 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 AA 634 delayed today?
Right now there are no reported delays at MSN, PHX. Checked 6:43 PM ET. For this flight's gate and exact status, check the American Airlines app.
Is AA 634 usually on time?
AA 634 arrived within 15 minutes of schedule 92.3% of the time in June-August 2026, with an average delay of 500 minutes when late.
How often is AA 634 cancelled?
0% of AA 634 flights were cancelled in June-August 2026.