Carrier route record
OHDCA→MKE
PSA Airlines · Washington to Milwaukee
- Flights
- 658
- Period
- September 2025 to August 2026
- Share of route
- 49%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on DCA to MKE sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 658 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so PSA on DCA to MKE runs 8 points behind the country as a whole. Across a thousand flights that is about 80 extra late arrivals.
Key figures
On time
69.3%
Arrivals under 15 minutes late, of 600 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
8.51%
National rate is 1.89%
Whole route
76.3%
Every carrier on DCA to MKE, 1,346 flights
These figures cover 658 flights between September 2025 and August 2026. Beyond the headline rate, 13.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
PSA against every carrier on DCA to MKE
PSA flew 658 of the 1,346 flights on DCA to MKE, about 49% of it. Its 69.3% on time is 7 points worse than the route as a whole, which runs 76.3%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Republic at 83.3% to PSA at 69.3%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 7 | 83.3% | 81 min | 14.29% | B− |
| Southwest Airlines | 681 | 82.5% | 59 min | 2.06% | B |
| PSA Airlines (this page) | 658 | 69.3% | 76 min | 8.51% | C− |
Flight by flight
PSA flight numbers on DCA to MKE
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.
Departure window
When PSA runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am95 flights78.0%
- 11am–2pm218 flights71.2%
- 2pm–5pm—
- 5pm–8pm11 flights—
- 8pm–5am334 flights65.9%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 78.0% of the time, against 65.9% for the overnight window. That is 12 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 334 flights scheduled in it.
Across the year
PSA on DCA to MKE through the year
December is the weak month at 47.7% on time, against 85.5% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 58 flights.
Across the week, Thursday is the strongest day at 73.3% on time and Friday the weakest at 64.8%, a spread of 9 points.
Arrival by arrival
How late PSA on DCA to MKE runs when it is late
PSA on DCA to MKE often beats the schedule: 160 of 600 completed flights, 27%, arrived 15 minutes or more early. The 184 late arrivals split 51 under half an hour, 54 between 30 and 60 minutes, and 79 an hour or more.
- 15+ min early160 flights26.7%
- Within 15 min256 flights42.7%
- 15–29 min late51 flights8.5%
- 30–59 min late54 flights9.0%
- 1–2 hours late51 flights8.5%
- 2+ hours late28 flights4.7%
Scale runs 0% to 100%.
Share of 600 completed flights by arrival against schedule.
23 of 179 late departures made up the time and arrived on time, 13% of them. 28 flights left on time and still arrived late.
The worst days
Worst days for PSA on DCA to MKE
The latest arrival of the period was on 9 June 2026, 11 hours 52 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.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 June 2026 | 11 hours 52 minutes | Late-arriving aircraft |
| 13 July 2026 | 10 hours 46 minutes | Late-arriving aircraft |
| 21 September 2025 | 8 hours 52 minutes | Carrier |
| 13 June 2026 | 5 hours 12 minutes | Carrier |
| 25 May 2026 | 4 hours 4 minutes | Late-arriving aircraft |
Delay causes
Why PSA runs late on this route
Late-arriving aircraft accounts for 52% of the 14,000 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Late-arriving aircraft
- 35%Carrier
- 10%National Airspace System
- 3%Extreme weather
52% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 14,000 reported delay minutes here, that single category outweighs weather by 17 to one. The split is drawn from 14,061 reported delay minutes.
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,980 of the 14,000 delay minutes reported here.
Cancellations run at 8.51%, against 1.89% nationally. That is about one flight in twelve 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 stage length
What a delay here costs
13.2% 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 634 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 return leg is a different operation and performs like one: it runs 72.3% on time across 658 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.
One caution: this is a thin sample. 658 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 PSA on DCA to MKE
Put together: the delay figures matter less here than the 8.51% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 600 completed flights over 12 months sit behind that.
Related
Where to go next
- DCA to MKE, every carrier
- PSA on MKE to DCA, the return leg
- Southwest Airlines on DCA to MKE82.5%
- PSA Airlines network-wide record
- Ronald Reagan Washington National (DCA) delay statistics
- Milwaukee Mitchell International (MKE) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.