Flight number record
AA 2840
American Airlines · Chicago to Philadelphia
- Route
- ORD → PHL
- Departs
- 14:50
- Flights
- 319
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AA 2840, check with American Airlines.
AA 2840 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about 2.5 hours behind schedule. That rests on 319 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.6%, so AA 2840 runs 9 points behind the country as a whole. Across a thousand flights that is about 91 extra late arrivals.
Key figures
On time
68.5%
Arrivals under 15 minutes late, of 308 completed flights
Avg delay
148 min
Across delayed arrivals only, not all flights
Cancelled
3.45%
National rate is 1.81%
1 hour+ late
17.5%
National rate is 8.1%
These figures cover 319 flights between July 2025 and June 2026. Beyond the headline rate, 17.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When AA 2840 flies
AA 2840 flies ORD to PHL without a single fixed slot. Its most common scheduled departure was 14:50, used on 89 of 319 flights, with 14:40 (57 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 14:5089 flights27.9%
- Departs 14:4057 flights17.9%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 14:50 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and AA 2840 runs 4 points worse at 68.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
AA 2840 next to ORD to PHL
Every carrier on ORD to PHL combined arrived on time 71.2% of the time across 4,918 flights, so AA 2840 is 3 points behind it. American flew 2,926 flights on the same city pair under all its flight numbers, including this one, and those ran 71.1% on time. Across its whole network American Airlines managed 74.4%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 2840thin sample | 319 | 68.5% | 148 min | 3.45% | C− |
| All American Airlines on ORD–PHL | 2,926 | 71.1% | 100 min | 3.76% | C− |
| All carriers on ORD–PHL | 4,918 | 71.2% | 94 min | 2.85% | C |
| American Airlines, whole network | 986,297 | 74.4% | 85 min | 2.29% | C |
Across the year
AA 2840 quarter by quarter
AA 2840 did not run the same all year. Its best quarter was Oct–Dec 2025 at 73.0% on time and its weakest Jul–Sep 2025 at 58.1%, a swing of 15 points on roughly 80 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202588 flights58.1%
- Oct–Dec 202591 flights73.0%
- Jan–Mar 202690 flights72.6%
- Apr–Jun 202650 flights71.4%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, AA 2840 did best on Friday at 75.6% on time and worst on Wednesday at 59.6%. Each day rests on about 46 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why AA 2840 runs late
One category carries most of the weight here. Carrier accounts for 45% of the 14,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 45%Carrier
- 35%Late-arriving aircraft
- 19%National Airspace System
- 1%Extreme weather
- 0%Security
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 14,000 reported delay minutes here, that single category outweighs weather by 35 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 14,391 delay minutes reported on AA 2840.
Cancellations run at 3.45%, against 1.81% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 678 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on one other city pair in the data, including PHL to ORD (41), but none flew often enough under AA 2840 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to PHL only.
One caution: this is a thin sample. 319 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AA 2840
For a booking, the cancellation rate is the figure to plan around on AA 2840: 3.45% of its 319 scheduled flights did not operate. A late arrival costs about 2.5 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to PHL, every carrier and departure
- PHL to ORD, the return direction
- United Airlines 1776 on the same route58.3%
- United Airlines 2182 on the same route77.1%
- United Airlines 2418 on the same route83.3%
- Chicago O'Hare International (ORD) delay statistics
- Philadelphia International (PHL) delay statistics
- American Airlines on-time record
- Every American Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.