Flight profile · American Airlines
AA470
Philadelphia (PHL) to Chicago (ORD) · scheduled 1:45 PM – 3:14 PM
How AA470 performs
621 operations, November 2023 – August 2026.
Between its first and last recorded date on PHL → ORD, AA470 averaged about 4 operations a week (621 in 1,031 days, cancelled ones included).
AA470 arrived on time 69.7% of the time, against 76.8% for all PHL → ORD flights, so this departure is 7.1 percentage points worse than the route as a whole. Against American Airlines’ own flights on this route it is 6.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 621 operations, November 2023 – August 2026 · If AA470 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
What stands out
How AA470 compares to other flight numbers, not just to itself.
This flight's worst arrivals run unusually far past its typical one, a bigger gap than 94% of 12,358 comparable flight numbers.
A typical arrival is 6 min early, but the worst tenth run 103 minutes worse than that.
Source: FlyerIntel analysis of US DOT BTS data · November 2023 – August 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.
Where AA470 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| AA470 | 69.7% | 1.77% | -6 min | 17.0% | 621 |
| American Airlines on PHL → ORD | 76.4% | 2.84% | -9 min | 11.0% | 8,828 |
| All PHL → ORD flights | 76.8% | 2.30% | -8 min | 10.3% | 14,678 |
AA470 cancelled 11 of 621 operations (1.77%), below the 2.30% for PHL → ORD.
17.0% of AA470’s arrivals were an hour or more late, against 10.3% across PHL → ORD, so the long delays are more common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · November 2023 – August 2026
Why AA470 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for AA470 on PHL → ORD. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering November 2023 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies AA470 comes in late, and what that does to the departure.
The aircraft flying AA470 came in 15 or more minutes late on 18% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Matched by tail number to the aircraft’s previous flight into PHL: 539 of 612 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late |
|---|---|
| AA470 | 18% |
| Network, same turn | 18% |
58 scheduled minutes is enough to clean and board when the aircraft is on time, with little to spare when it is not.
The network row is every flight with a scheduled turn of 45 to 59 minutes. How often AA470’s aircraft landed 15 or more minutes late is about the same as the network’s. There are not enough departures in both groups to compare how it left.
Source: US DOT Bureau of Transportation Statistics · Data covering November 2023 – August 2026
From pushback to gate
When it leaves PHL late, does that still matter by the time it reaches ORD?
AA470 pushes back an average of 31.5 minutes late and reaches the gate at ORD an average of 24.3 minutes late. The 7.2 minutes between those two figures are slack the published schedule already carries, so a late pushback is partly, not fully, made up before the gate. It spends 20.3 minutes on the taxiways at PHL, 1.5 minutes longer than a typical PHL departure in the same hour.
On arrival at ORD, AA470 spends 15.5 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 2.4 minutes shorter than a typical ORD arrival (18.0 min).
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 20,458 PHL departures. Taxi-in is landing to gate, set against 985,848 arrivals at ORD. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · November 2023 – August 2026
The hour it leaves PHL
AA470 has one departure time, 1:45 PM, so this is what that hour at PHL is worth.
On-time arrival rate. 20,458 departures from PHL are scheduled in the 1 PM–2 PM hour over the period, against 315,217 across the whole day.
AA470 is scheduled out of PHL at 1:45 PM, in the 1 PM–2 PM bank. Departures from PHL in that hour arrive on time 76.6% of the time against 76.0% across the airport’s whole day, so the hour AA470 leaves in is an ordinary one for PHL and explains nothing about its record either way.
Both airport figures cover every destination from PHL, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · November 2023 – August 2026 · Hours below 120 departures are not scored.
Other routes AA470 has flown
Carriers reassign flight numbers. AA470 also served these 5 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| PHX→SNA Phoenix to Santa Ana | May 6, 2024 – November 4, 2024 | 183 | 76.9% |
| SNA→PHX Santa Ana to Phoenix | May 6, 2024 – November 4, 2024 | 183 | 81.3% |
| MIA→CLT Miami to Charlotte | April 4, 2024 – May 5, 2024 | 32 | — |
| DFW→STT Dallas–Fort Worth to Charlotte Amalie | February 17, 2024 – March 30, 2024 | 7 | — |
| DFW→PHL Dallas–Fort Worth to Philadelphia | July 1, 2023 – November 4, 2023 | 127 | 88.0% |
The figures above describe only PHL → ORD, the route AA470 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
97 min late
against a median of 6 min early
AA470 has an average that understates its risk: a typical arrival is 6 min early, but the worst tenth are 103 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 621 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering November 2023 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| AA1652 | American Airlines | 87.9% | 16 min early | 778 |
| AA2095 | American Airlines | 82.5% | 9 min early | 642 |
| AA470 this flight | American Airlines | 69.7% | 6 min early | 621 |
| UA308 | United Airlines | 62.4% | 5 min late | 666 |
Among all 4 departures on this route with at least 600 operations, AA470 has the 3rd highest on-time rate, 18.2 points behind the best. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 621 records of AA470 operating PHL → ORD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule; cancelled and diverted flights are reported separately, not in the on-time rate.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed