Flight number record
AA 1874
American Airlines · Philadelphia to Boston
- Route
- PHL → BOS
- Departs
- 22:20
- Flights
- 278
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1874, check with American Airlines.
AA 1874 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 278 flights, with a median arrival 5 minutes early.
The national on-time rate over the same period is 77.3%, so AA 1874 runs 5 points behind the country as a whole. Across a thousand flights that is about 53 extra late arrivals.
Key figures
On time
72.0%
Arrivals under 15 minutes late, of 264 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
5.04%
National rate is 1.89%
1 hour+ late
11.0%
National rate is 8.3%
These figures cover 278 flights between September 2025 and August 2026. Beyond the headline rate, 11.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When AA 1874 flies
AA 1874 flies PHL to BOS without a single fixed slot. Its most common scheduled departure was 22:20, used on 49 of 278 flights, with 21:57 (46 flights) and 21:30 (43 flights) next.
- Departs 22:2049 flights17.6%
- Departs 21:5746 flights16.5%
- Departs 21:3043 flights15.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 22:20 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and AA 1874 runs level with that at 72.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
AA 1874 next to PHL to BOS
Every carrier on PHL to BOS combined arrived on time 74.5% of the time across 5,035 flights, so AA 1874 is 3 points behind it. American flew 2,289 flights on the same city pair under all its flight numbers, including this one, and those ran 70.6% on time. Across its whole network American Airlines managed 74.7%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1874thin sample | 278 | 72.0% | 69 min | 5.04% | C− |
| All American Airlines on PHL–BOS | 2,289 | 70.6% | 84 min | 2.84% | C |
| All carriers on PHL–BOS | 5,035 | 74.5% | 81 min | 3.42% | C− |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 1874 quarter by quarter
Quarter by quarter AA 1874 held fairly steady: 75.3% in Oct–Dec 2025, 74.4% in Jan–Mar 2026 and 72.3% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202515 flights—
- Oct–Dec 202580 flights75.3%
- Jan–Mar 202683 flights74.4%
- Apr–Jun 202667 flights72.3%
- Jul–Sep 202633 flights—
Scale runs 65% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, AA 1874 did best on Wednesday at 80.0% on time and worst on Monday at 54.8%. Each day rests on about 40 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 1874 runs when it is late
The 74 late arrivals split 20 under half an hour, 25 between 30 and 60 minutes, and 29 an hour or more.
- 15+ min early62 flights23.5%
- Within 15 min128 flights48.5%
- 15–29 min late20 flights7.6%
- 30–59 min late25 flights9.5%
- 1–2 hours late18 flights6.8%
- 2+ hours late11 flights4.2%
Scale runs 0% to 100%.
Share of 264 completed flights by arrival against schedule.
15 of 81 late departures made up the time and arrived on time, 19% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for AA 1874
The latest arrival of the period was on 14 June 2026, 4 hours 54 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 June 2026 | 4 hours 54 minutes | Extreme weather |
| 27 October 2025 | 4 hours 30 minutes | Late-arriving aircraft |
| 27 April 2026 | 3 hours 39 minutes | Late-arriving aircraft |
| 2 August 2026 | 3 hours 36 minutes | Carrier |
| 9 July 2026 | 3 hours 26 minutes | Late-arriving aircraft |
Delay causes
Why AA 1874 runs late
Late-arriving aircraft accounts for 45% of the 5,138 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 35%Carrier
- 12%National Airspace System
- 8%Extreme weather
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,138 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 5,138 delay minutes reported on AA 1874.
Cancellations run at 5.04%, against 1.89% nationally. That is about one flight in twenty 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
11.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on two other city pairs in the data, including BGR to LGA (27) and LGA to BGR (26), but none flew often enough under AA 1874 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PHL to BOS only.
One caution: this is a thin sample. 278 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 1874
For a booking, the cancellation rate is the figure to plan around on AA 1874: 5.04% of its 278 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- PHL to BOS, every carrier and departure
- BOS to PHL, the return direction
- Republic Airways 5740 on the same route92.2%
- Republic Airways 5845 on the same route90.0%
- Philadelphia International (PHL) delay statistics
- Boston Logan International (BOS) 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.