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DelayAtlas

Carrier route record

WNDCA→PVD

Southwest Airlines · Washington to Providence

Flights
670
Period
September 2025 to August 2026
Share of route
28%
Carriers
5
CGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Southwest Airlines.

Southwest on DCA to PVD sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 670 flights. The strongest carrier on the route with a full sample, American Airlines, flew 450 at 77.0% on time.

The US average over the same twelve months is 77.3%, so there is little to separate Southwest on DCA to PVD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

74.7%

Arrivals under 15 minutes late, of 653 completed flights

Avg delay

64 min

Across delayed arrivals only, not all flights

Cancelled

2.54%

National rate is 1.89%

Whole route

72.5%

Every carrier on DCA to PVD, 2,426 flights

These figures cover 670 flights between September 2025 and August 2026. Beyond the headline rate, 8.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

Southwest against every carrier on DCA to PVD

Southwest flew 670 of the 2,426 flights on DCA to PVD, about 28% of it. Its 74.7% on time is 2 points better than the route as a whole, which runs 72.5%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from American at 77.0% to PSA at 69.0%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. American Airlines arrives on time 77.0% of the time; PSA Airlines manages 69.0%. Sample sizes sit next to every figure, because a two-point gap across 1,062 flights means less than a ten-point one.

On-time performance by carrier on DCA to PVD
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlines45077.0%62 min3.33%B−
Southwest Airlines (this page)67074.7%64 min2.54%C
Republic Airwaysthin sample20273.8%65 min9.41%C−
Envoy Airthin sample4270.7%66 min2.38%C
PSA Airlines1,06269.0%72 min7.16%C−

PSA Airlines cancels 7.2% 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.

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 Southwest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 35 points, against 8 points between the best and worst carrier.

  • 5am–8am8 flights—
  • 8am–11am180 flights90.4%
  • 11am–2pm145 flights86.0%
  • 2pm–5pm234 flights55.6%
  • 5pm–8pm103 flights72.0%
  • 8pm–5am—

Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 90.4% of the time, against 55.6% for the afternoon window. That is 35 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 234 flights scheduled in it.

Across the year

Southwest on DCA to PVD through the year

On-time rate by calendar month84J74F71M75A67M78J64J73A84S78O73N77D
Darker means more delays. Figures are on-time percentages.January best, July worst

July is the worst month at 64.2% on time, 20 points below January, the best at 84.3%. 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. December was the busiest month here, with 60 flights.

Across the week, Thursday is the strongest day at 77.5% on time and Wednesday the weakest at 72.1%, a spread of 5 points.

On-time rate by day of the week75.8Mon74.8Tue72.1Wed77.5Thu74.0Fri74.5Sat74.5Sun
Monday: 75.8 percent on time. Tuesday: 74.8 percent on time. Wednesday: 72.1 percent on time. Thursday: 77.5 percent on time. Friday: 74.0 percent on time. Saturday: 74.5 percent on time. Sunday: 74.5 percent on time

Arrival by arrival

How late Southwest on DCA to PVD runs when it is late

The 165 late arrivals split 49 under half an hour, 62 between 30 and 60 minutes, and 54 an hour or more.

  • 15+ min early151 flights23.1%
  • Within 15 min337 flights51.6%
  • 15–29 min late49 flights7.5%
  • 30–59 min late62 flights9.5%
  • 1–2 hours late35 flights5.4%
  • 2+ hours late19 flights2.9%

Scale runs 0% to 100%.

Share of 653 completed flights by arrival against schedule.

57 of 210 late departures made up the time and arrived on time, 27% of them. Only 12 left on time and still arrived late.

The worst days

Worst days for Southwest on DCA to PVD

The latest arrival of the period was on 1 April 2026, 7 hours 29 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as a late-arriving aircraft.

The latest arrivals of Southwest on DCA to PVD in the period
DateArrived late byLargest filed cause
1 April 20267 hours 29 minutesExtreme weather
20 May 20266 hours 19 minutesLate-arriving aircraft
9 July 20265 hours 12 minutesLate-arriving aircraft
25 June 20264 hours 55 minutesLate-arriving aircraft
23 March 20264 hours 25 minutesLate-arriving aircraft

Delay causes

Why Southwest runs late on this route

Late-arriving aircraft accounts for 58% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    58%
  • Carrier
    26%
  • National Airspace System
    12%
  • Extreme weather
    4%

58% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 13 to one. The split is drawn from 10,508 reported delay minutes.

The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.4% on time here.

Cancellations run at 2.54%, 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

8.3% 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 356 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 8am–11am window matters as much as it does.

The return leg runs 76.8% on time across 670 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 670 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 Southwest on DCA to PVD

Put together: treat all of this as provisional. 670 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 74.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 653 completed flights over 12 months sit behind that.

Related

Where to go next

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.