Carrier route record
OHMKE→DCA
PSA Airlines · Milwaukee to Washington
- 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 MKE to DCA 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 about 2.4 hours behind schedule. That rests on 658 flights, with a median arrival 5 minutes early.
The national on-time rate over the same period is 77.3%, so PSA on MKE to DCA runs 5 points behind the country as a whole. Across a thousand flights that is about 50 extra late arrivals.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 613 completed flights
Avg delay
144 min
Across delayed arrivals only, not all flights
Cancelled
6.53%
National rate is 1.89%
Whole route
72.7%
Every carrier on MKE to DCA, 1,345 flights
These figures cover 658 flights between September 2025 and August 2026. Beyond the headline rate, 12.9% 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.
Carrier by carrier
PSA against every carrier on MKE to DCA
PSA flew 658 of the 1,345 flights on MKE to DCA, about 49% of it. Its 72.3% on time is about level with the route as a whole at 72.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Southwest at 73.3% to Republic at 57.1%. 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 |
|---|---|---|---|---|---|
| Southwest Airlines | 680 | 73.3% | 58 min | 1.76% | C |
| PSA Airlines (this page) | 658 | 72.3% | 144 min | 6.53% | C− |
| Republic Airwaysthin sample | 7 | 57.1% | 31 min | 0.00% | D+ |
Flight by flight
PSA flight numbers on MKE to DCA
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 21 points, against half a point between the best and worst carrier.
- 5am–8am351 flights82.3%
- 8am–11am1 flights—
- 11am–2pm306 flights61.0%
- 2pm–5pm—
- 5pm–8pm—
- 8pm–5am—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 61.0% on time against 82.3% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5am–8am window is the busiest, with 351 flights scheduled in it.
Across the year
PSA on MKE to DCA through the year
December is the weak month at 44.2% on time, against 84.5% in October. 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, Saturday is the strongest day at 80.0% on time and Wednesday the weakest at 62.0%, a spread of 18 points.
Arrival by arrival
How late PSA on MKE to DCA runs when it is late
PSA on MKE to DCA often beats the schedule: 204 of 613 completed flights, 33%, arrived 15 minutes or more early. The 170 late arrivals split 47 under half an hour, 44 between 30 and 60 minutes, and 79 an hour or more.
- 15+ min early204 flights33.3%
- Within 15 min239 flights39.0%
- 15–29 min late47 flights7.7%
- 30–59 min late44 flights7.2%
- 1–2 hours late38 flights6.2%
- 2+ hours late41 flights6.7%
Scale runs 0% to 100%.
Share of 613 completed flights by arrival against schedule.
18 of 133 late departures made up the time and arrived on time, 14% of them. In the other direction, 55 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DCA.
The worst days
Worst days for PSA on MKE to DCA
The latest arrival of the period was on 2 December 2025, 28 hours 38 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 December 2025 | 28 hours 38 minutes | Carrier |
| 3 November 2025 | 27 hours 36 minutes | Late-arriving aircraft |
| 12 December 2025 | 25 hours 33 minutes | Carrier |
| 23 October 2025 | 25 hours 32 minutes | Carrier |
| 6 August 2026 | 25 hours 3 minutes | Carrier |
Delay causes
Why PSA runs late on this route
Carrier accounts for 61% of the 24,000 delay minutes carriers reported here, and the remaining four split what is left.
- 61%Carrier
- 24%Late-arriving aircraft
- 13%National Airspace System
- 2%Extreme weather
The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 15,000 of the 24,000 delay minutes reported here. The split is drawn from 24,448 reported delay minutes.
Cancellations run at 6.53%, against 1.89% nationally. That is about one flight in fifteen 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
12.9% 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 69.3% on time across 658 flights, 3 points below 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 MKE to DCA
Put together: the delay figures matter less here than the 6.53% cancellation rate. A late arrival costs you about 2.4 hours; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 613 completed flights over 12 months sit behind that.
Related
Where to go next
- MKE to DCA, every carrier
- PSA on DCA to MKE, the return leg
- Southwest Airlines on MKE to DCA73.3%
- PSA Airlines network-wide record
- Milwaukee Mitchell International (MKE) delay statistics
- Ronald Reagan Washington National (DCA) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
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.