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DelayAtlas

Carrier route record

YXMEMDCA

Republic Airways · Memphis to Washington

Flights
493
Period
July 2025 to June 2026
Share of route
43%
Carriers
4
B−GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.

Republic on MEM to DCA lands a B−, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 493 flights, with a median arrival 9 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate Republic on MEM to DCA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

77.8%

Arrivals under 15 minutes late, of 473 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

3.65%

National rate is 1.81%

Whole route

75.4%

Every carrier on MEM to DCA, 1,152 flights

These figures cover 493 flights between July 2025 and June 2026. Beyond the headline rate, 8.7% 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.

Carrier by carrier

Republic against every carrier on MEM to DCA

Republic flew 493 of the 1,152 flights on MEM to DCA, about 43% of it. Its 77.8% on time is 2 points better than the route as a whole, which runs 75.4%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 100.0% to PSA at 73.1%. Two 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.

On-time performance by carrier on MEM to DCA
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlinesthin sample4100.0%0.00%A+
Envoy Airthin sample5100.0%0.00%A+
Republic Airways (this page)49377.8%73 min3.65%B−
PSA Airlines65073.1%98 min5.23%C−

Departure window

When Republic runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am216 flights88.5%
  • 8am–11am6 flights
  • 11am–2pm65 flights75.0%
  • 2pm–5pm13 flights
  • 5pm–8pm193 flights65.7%
  • 8pm–5am

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 88.5% of the time, against 65.7% for the evening window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 216 flights scheduled in it.

Across the year

Republic on MEM to DCA through the year

On-time rate by calendar month80JFMA97M70JJ60A78S79O78N83D
Darker means more delays. Figures are on-time percentages.May best, August worst

August is the worst month at 60.4% on time, 37 points below May, the best at 97.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. November was the busiest month here, with 58 flights.

Across the week, Tuesday is the strongest day at 86.3% on time and Thursday the weakest at 68.9%. 17 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week85.5Mon86.3Tue76.1Wed68.9Thu73.6Fri73.3Sat79.0Sun
Monday: 85.5 percent on time. Tuesday: 86.3 percent on time. Wednesday: 76.1 percent on time. Thursday: 68.9 percent on time. Friday: 73.6 percent on time. Saturday: 73.3 percent on time. Sunday: 79.0 percent on time

Delay causes

Why Republic runs late on this route

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 7,693 reported delay minutes.

  • Late-arriving aircraft
    34%
  • Carrier
    34%
  • National Airspace System
    28%
  • Extreme weather
    4%

34% 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 7,693 reported delay minutes here, that single category outweighs weather by 9 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 7,693 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 88.5% on time here.

Cancellations run at 3.65%, against 1.81% nationally. That is roughly one flight in 25 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

8.7% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 762 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 return leg is a different operation and performs like one: it runs 73.4% on time across 494 flights, 4 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 4 points of difference.

One caution: this is a thin sample. 493 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 Republic on MEM to DCA

Put together: the delay figures matter less here than the 3.65% cancellation rate. A late arrival costs you a little over an hour; 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. 473 completed flights over 12 months sit behind that.

Related

Where to go next

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.