Carrier route record
YXJAX→IAD
Republic Airways · Jacksonville to Washington
- Flights
- 120
- Period
- July 2025 to June 2026
- Share of route
- 16%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on JAX to IAD earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 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 120 flights, with a median arrival 15 minutes early.
Set against the rest of the country, Republic's JAX to IAD record is 16 points better than the US average of 77.6%. That gap is worth roughly 164 fewer late arrivals for every thousand flights.
Key figures
On time
94.0%
Arrivals under 15 minutes late, of 117 completed flights
Avg delay
103 min
Across delayed arrivals only, not all flights
Cancelled
2.50%
National rate is 1.81%
Whole route
88.0%
Every carrier on JAX to IAD, 771 flights
These figures cover 120 flights between July 2025 and June 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Republic against every carrier on JAX to IAD
Republic flew 120 of the 771 flights on JAX to IAD, about 16% of it. Its 94.0% on time is 6 points better than the route as a whole, which runs 88.0%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Republic at 94.0% to Allegiant at 51.7%. 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 Airways (this page)thin sample | 120 | 94.0% | 103 min | 2.50% | A |
| United Airlines | 591 | 90.6% | 99 min | 1.02% | A |
| Allegiant Airthin sample | 60 | 51.7% | 53 min | 0.00% | F+ |
Departure window
When Republic runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 120 flights.
There are not enough flights in each departure window to split Republic's JAX to IAD record by time of day without the percentages moving on noise. The headline rate of 94.0% is the reliable figure here.
Across the year
Republic on JAX to IAD through the year
- Jul–Sep 202590 flights93.1%
- Oct–Dec 202525 flights—
- Jan–Mar 20265 flights—
Scale runs 85% 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 94.0% on time across 120 flights.
Split by quarter, Republic on JAX to IAD logged 90 flights in Jul–Sep 2025, 25 flights in Oct–Dec 2025 and 5 flights in Jan–Mar 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 94.0% 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 53% of the 719 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.
- 53%Late-arriving aircraft
- 47%Carrier
- 1%National Airspace System
53% 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 719 reported delay minutes here, that single category outweighs weather by 53 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 719 reported delay minutes.
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 335 of the 719 delay minutes reported here.
Cancellations run at 2.50%, against 1.81% nationally. That is about one flight in 40 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
Badly late arrivals are rare here: only 2.6% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 631 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 83.3% on time across 120 flights, 11 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 11 points of difference.
One caution: this is a thin sample. 120 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 IAD
Put together: treat all of this as provisional. 120 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 94.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 117 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.