Carrier route record
YXDCA→CMH
Republic Airways · Washington to Columbus
- Flights
- 989
- Period
- September 2025 to August 2026
- Share of route
- 48%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on DCA to CMH lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 989 flights, with a median arrival 5 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Republic on DCA to CMH from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.1%
Arrivals under 15 minutes late, of 963 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
2.63%
National rate is 1.89%
Whole route
77.6%
Every carrier on DCA to CMH, 2,051 flights
These figures cover 989 flights between September 2025 and August 2026. The median arrival is 5 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.
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Carrier by carrier
Republic against every carrier on DCA to CMH
Republic flew 989 of the 2,051 flights on DCA to CMH, about 48% of it. Its 80.1% on time is 3 points better than the route as a whole, which runs 77.6%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Republic at 80.1% to PSA at 73.7%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page) | 989 | 80.1% | 65 min | 2.63% | B |
| Southwest Airlinesthin sample | 349 | 77.1% | 54 min | 0.57% | B+ |
| Envoy Airthin sample | 258 | 75.3% | 103 min | 4.26% | B− |
| PSA Airlines | 455 | 73.7% | 82 min | 8.79% | C− |
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 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.
- 5am–8am144 flights92.3%
- 8am–11am368 flights83.6%
- 11am–2pm80 flights78.9%
- 2pm–5pm159 flights69.2%
- 5pm–8pm228 flights73.8%
- 8pm–5am10 flights—
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.3% of the time, against 69.2% for the afternoon 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 8am–11am window is the busiest, with 368 flights scheduled in it.
Across the year
Republic on DCA to CMH through the year
December is the weak month at 56.5% on time, against 88.7% in May. 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. June was the busiest month here, with 118 flights.
Across the week, Saturday is the strongest day at 86.0% on time and Friday the weakest at 74.8%, a spread of 11 points.
Arrival by arrival
How late Republic on DCA to CMH runs when it is late
Republic on DCA to CMH often beats the schedule: 241 of 963 completed flights, 25%, arrived 15 minutes or more early. The 192 late arrivals split 68 under half an hour, 58 between 30 and 60 minutes, and 66 an hour or more.
- 15+ min early241 flights25.0%
- Within 15 min530 flights55.0%
- 15–29 min late68 flights7.1%
- 30–59 min late58 flights6.0%
- 1–2 hours late44 flights4.6%
- 2+ hours late22 flights2.3%
Scale runs 0% to 100%.
Share of 963 completed flights by arrival against schedule.
38 of 187 late departures made up the time and arrived on time, 20% of them. 43 flights left on time and still arrived late.
The worst days
Worst days for Republic on DCA to CMH
The latest arrival of the period was on 14 December 2025, 10 hours 15 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 December 2025 | 10 hours 15 minutes | Late-arriving aircraft |
| 11 June 2026 | 5 hours 13 minutes | Extreme weather |
| 4 November 2025 | 5 hours 6 minutes | Late-arriving aircraft |
| 15 January 2026 | 4 hours 36 minutes | Late-arriving aircraft |
| 27 May 2026 | 4 hours 34 minutes | Late-arriving aircraft |
Delay causes
Why Republic runs late on this route
Late-arriving aircraft accounts for 55% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 20%National Airspace System
- 13%Carrier
- 12%Extreme weather
Extreme weather accounts for 12% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 12,454 reported delay minutes.
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 12,000 reported delay minutes here, that single category outweighs weather by 5 to one.
Cancellations run at 2.63%, against 1.89% 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
6.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 323 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 67.3% on time across 990 flights, 13 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 13 points of difference.
One caution: this is a thin sample. 989 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 DCA to CMH
Put together: treat all of this as provisional. 989 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 80.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 963 completed flights over 12 months sit behind that.
Related
Where to go next
- DCA to CMH, every carrier
- Republic on CMH to DCA, the return leg
- Southwest Airlines on DCA to CMH77.1%
- Envoy Air on DCA to CMH75.3%
- PSA Airlines on DCA to CMH73.7%
- Republic Airways network-wide record
- Ronald Reagan Washington National (DCA) delay statistics
- John Glenn Columbus International (CMH) 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.