Carrier route record

YXJAX→DCA

Republic Airways · Jacksonville to Washington

Flights: 124
Period: July 2025 to June 2026
Share of route: 8%
Carriers: 4

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

Republic on JAX to DCA earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 124 flights, with a median arrival 11 minutes early.

Set against the rest of the country, Republic's JAX to DCA record is 7 points better than the US average of 77.6%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.

On time

84.3%

Arrivals under 15 minutes late, of 121 completed flights

Avg delay

108 min

Across delayed arrivals only, not all flights

Cancelled

2.42%

National rate is 1.81%

Whole route

71.7%

Every carrier on JAX to DCA, 1,464 flights

These figures cover 124 flights between July 2025 and June 2026. Beyond the headline rate, 9.1% 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 JAX to DCA

Republic flew 124 of the 1,464 flights on JAX to DCA, about 8% of it. Its 84.3% on time is 13 points better than the route as a whole, which runs 71.7%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Envoy at 100.0% to PSA at 66.8%. 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 JAX to DCA
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	4	100.0%	—	0.00%	A+
Republic Airways (this page)thin sample	124	84.3%	108 min	2.42%	B
American Airlines	1,004	71.6%	72 min	2.19%	C
PSA Airlinesthin sample	332	66.8%	129 min	3.61%	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 25 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–8am—
8am–11am43 flights90.7%
11am–2pm37 flights94.4%
2pm–5pm44 flights69.0%
5pm–8pm—
8pm–5am—

Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.

The best window here is not the first bank but the 11am–2pm slot at 94.4% on time, ahead of 2pm–5pm at 69.0%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 2pm–5pm window is the busiest, with 44 flights scheduled in it.

Across the year

Republic on JAX to DCA through the year

Jul–Sep 20254 flights—
Oct–Dec 20254 flights—
Jan–Mar 202642 flights92.5%
Apr–Jun 202674 flights80.8%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 84.3% on time across 124 flights.

Split by quarter, Republic on JAX to DCA logged 4 flights in Jul–Sep 2025, 4 flights in Oct–Dec 2025, 42 flights in Jan–Mar 2026 and 74 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 84.3% annual figure is the one to use.

Delay causes

Why Republic runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 48% of the 2,043 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
48%
Carrier
30%
National Airspace System
21%
Extreme weather
2%

48% 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 2,043 reported delay minutes here, that single category outweighs weather by 28 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 2,043 reported delay minutes.

Cancellations sit at 2.42% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. 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 89.2% on time across 124 flights, 5 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 5 points of difference.

One caution: this is a thin sample. 124 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 JAX to DCA

Put together: treat all of this as provisional. 124 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 84.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 121 completed flights over 12 months sit behind that.

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.

Key figures