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DelayAtlas

Flight number record

AA 1200

American Airlines · Washington to Chicago

Route
DCA → ORD
Departs
09:59
Flights
299
Period
September 2025 to August 2026
CGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1200, check with American Airlines.

AA 1200 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 299 flights, with a median arrival 8 minutes early.

Key figures

On time

74.0%

Arrivals under 15 minutes late, of 288 completed flights

Avg delay

91 min

Across delayed arrivals only, not all flights

Cancelled

2.34%

National rate is 1.89%

1 hour+ late

12.8%

National rate is 8.3%

These figures cover 299 flights between September 2025 and August 2026. Beyond the headline rate, 12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Schedule

When AA 1200 flies

AA 1200 flies DCA to ORD without a single fixed slot. Its most common scheduled departure was 09:59, used on 62 of 299 flights, with 09:35 (50 flights) and 09:45 (38 flights) next.

  • Departs 09:5962 flights20.7%
  • Departs 09:3550 flights16.7%
  • Departs 09:4538 flights12.7%

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 09:59 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AA 1200 runs 10 points worse at 74.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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 1200 next to DCA to ORD

Every carrier on DCA to ORD combined arrived on time 73.8% of the time across 7,112 flights, so AA 1200 is about level with it. American flew 2,271 flights on the same city pair under all its flight numbers, including this one, and those ran 72.9% on time. Across its whole network American Airlines managed 74.7%, close to this flight's figure.

AA 1200 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
AA 1200thin sample29974.0%91 min2.34%C
All American Airlines on DCA–ORD2,27172.9%89 min3.61%C−
All carriers on DCA–ORD7,11273.8%86 min3.56%C−
American Airlines, whole network988,89274.7%85 min2.14%C

Across the year

AA 1200 quarter by quarter

AA 1200 did not run the same all year. Its best quarter was Apr–Jun 2026 at 78.0% on time and its weakest Jul–Sep 2025 at 66.7%, a swing of 11 points on roughly 75 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 202530 flights66.7%
  • Oct–Dec 202592 flights70.8%
  • Jan–Mar 202664 flights73.8%
  • Apr–Jun 202685 flights78.0%
  • Jul–Sep 202628 flights—

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, AA 1200 did best on Thursday at 88.1% on time and worst on Sunday at 58.5%. Each day rests on about 43 flights, so a gap of 30 points is worth noticing but could still narrow in another year.

On-time rate by day of the week82.5Mon77.5Tue61.9Wed88.1Thu66.7Fri82.9Sat58.5Sun
Monday: 82.5 percent on time. Tuesday: 77.5 percent on time. Wednesday: 61.9 percent on time. Thursday: 88.1 percent on time. Friday: 66.7 percent on time. Saturday: 82.9 percent on time. Sunday: 58.5 percent on time

Arrival by arrival

How late AA 1200 runs when it is late

AA 1200 often beats the schedule: 89 of 288 completed flights, 31%, arrived 15 minutes or more early. The 75 late arrivals split 27 under half an hour, 11 between 30 and 60 minutes, and 37 an hour or more.

  • 15+ min early89 flights30.9%
  • Within 15 min124 flights43.1%
  • 15–29 min late27 flights9.4%
  • 30–59 min late11 flights3.8%
  • 1–2 hours late16 flights5.6%
  • 2+ hours late21 flights7.3%

Scale runs 0% to 100%.

Share of 288 completed flights by arrival against schedule.

12 of 75 late departures made up the time and arrived on time, 16% of them. 12 flights left on time and still arrived late.

The worst days

Worst days for AA 1200

The latest arrival of the period was on 18 February 2026, 12 hours 30 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.

The latest arrivals of AA 1200 in the period
DateArrived late byLargest filed cause
18 February 202612 hours 30 minutesLate-arriving aircraft
24 June 20268 hours 24 minutesCarrier
4 October 20254 hours 37 minutesLate-arriving aircraft
28 September 20254 hours 9 minutesCarrier
3 September 20254 hours 4 minutesLate-arriving aircraft

Delay causes

Why AA 1200 runs late

Late-arriving aircraft accounts for 53% of the 6,842 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    53%
  • Carrier
    26%
  • National Airspace System
    20%
  • Extreme weather
    1%

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,842 reported delay minutes here, that single category outweighs weather by 36 to one. The split is drawn from 6,842 delay minutes reported on AA 1200.

Cancellations sit at 2.34% against a national 1.89%, which is ordinary. Diversions add another 1.34%.

Connections and routes

What a delay on this flight costs

12.8% 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 612 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.

The same number turns up on four other city pairs in the data, including ORD to DCA (54), LAX to IAD (33) and DFW to OKC (26), but none flew often enough under AA 1200 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DCA to ORD only.

One caution: this is a thin sample. 299 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 1200

For a booking, AA 1200 is a flight to put a long connection behind. 12.8% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

Related

Where to go next

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.