Carrier route record

YXDCA→PWM

Republic Airways · Washington to Portland

Flights: 100
Period: July 2025 to June 2026
Share of route: 9%
Carriers: 4

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

Republic on DCA to PWM sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 100 flights. The strongest carrier on the route with a full sample, American Airlines, flew 655 at 69.9% on time.

The national on-time rate over the same period is 77.6%, so Republic on DCA to PWM runs 9 points behind the country as a whole. Across a thousand flights that is about 94 extra late arrivals.

On time

68.2%

Arrivals under 15 minutes late, of 88 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

12.00%

National rate is 1.81%

Whole route

68.8%

Every carrier on DCA to PWM, 1,153 flights

These figures cover 100 flights between July 2025 and June 2026. Beyond the headline rate, 11.4% 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 DCA to PWM

Republic flew 100 of the 1,153 flights on DCA to PWM, about 9% of it. Its 68.2% on time is about level with the route as a whole at 68.8%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 100.0% to PSA at 66.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The two carriers here are closely matched: 3 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on DCA to PWM
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	4	100.0%	—	0.00%	A+
American Airlines	655	69.9%	69 min	2.29%	C
Republic Airways (this page)thin sample	100	68.2%	63 min	12.00%	C−
PSA Airlines	394	66.7%	63 min	4.57%	C−

PSA Airlines cancels 4.6% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

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 100 flights.

5am–8am—
8am–11am6 flights—
11am–2pm—
2pm–5pm35 flights68.8%
5pm–8pm—
8pm–5am59 flights64.0%

Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.

The 2pm–5pm window is the strongest at 68.8% on time. The full set of windows spans 5 points.

Across the year

Republic on DCA to PWM through the year

Jul–Sep 202531 flights—
Oct–Dec 20254 flights—
Jan–Mar 202636 flights69.7%
Apr–Jun 202629 flights—

Scale runs 60% to 75%. 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 68.2% on time across 100 flights.

Split by quarter, Republic on DCA to PWM logged 31 flights in Jul–Sep 2025, 4 flights in Oct–Dec 2025, 36 flights in Jan–Mar 2026 and 29 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 68.2% 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 79% of the 1,750 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
79%
National Airspace System
19%
Carrier
2%

79% 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 1,750 reported delay minutes here, that single category outweighs weather by 79 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 1,750 reported delay minutes.

Cancellations run at 12.00%, against 1.81% nationally. That is about one flight in eight 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.4% 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.

At 482 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 2pm–5pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 81.1% on time across 100 flights, 13 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 13 points of difference.

One caution: this is a thin sample. 100 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 PWM

Put together: the delay figures matter less here than the 12.00% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 88 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