No delays reported for UA 1504 (LGA → ORD) as of 6:51 PM ET. It arrived on time 54.9% of the time in June-August 2026. When it was late, the average delay was 2h 4m. 10.1% of flights were cancelled. Right now there are no reported delays at LGA, ORD.
High cancellation risk
Next leg LGA → ORD, scheduled 3:25 PM local time. No delays at LGA right now. This flight number flew about 6 days a week in June-August 2026, so it may not operate today. Line up a backup option.
10.1% 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.
Book a backup seat LGA → ORDThis flight is cancelled often; a refundable backup costs little
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| LGA → ORD New York, NY to Chicago, IL | 3:25 PM → 5:20 PM | 55% |
Local times. Schedules change; check your booking.
How reliable is UA 1504?
| Arrived on time (within 15 min) | 54.9% |
| Average delay when late | 124 min |
| Cancelled | 10.1% |
| Diverted | 0% |
| Flights tracked | 79 |
Best and worst days to fly UA 1504
UA 1504 was most reliable on Tuesdays (73% on time) and least reliable on Fridays (33%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | Too few flights |
| Sunday |
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 LGA → ORD
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 1504 delayed today?
Right now there are no reported delays at LGA, ORD. Checked 6:51 PM ET. For this flight's gate and exact status, check the United app.
Is UA 1504 usually on time?
UA 1504 arrived within 15 minutes of schedule 54.9% of the time in June-August 2026, with an average delay of 124 minutes when late.
How often is UA 1504 cancelled?
10.1% of UA 1504 flights were cancelled in June-August 2026.