ON TIMEBOARD

DCA → LGA on time

Washington Reagan National (Washington, DC) to LaGuardia (New York, NY). Every scheduled flight, September 2025 to August 2026.

On time
61%
arrived < 15 min late
Cancelled
6.4%
4,844 flights
Typical arrival
0 min
median vs schedule
When late
+78 min
average delay
Flights / day
13
2 airlines

61% of flights from Washington to New York arrived on time over the past 12 months. That is worse than the typical U.S. route. The 7 a.m. departures ran on time 82% of the time; the 7 p.m. ones 41%. Most reliable airline: Delta Air Lines (62%). 20% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for DCA → LGA: when a flight was late, it was under 45 minutes late 46% of the time. About 1 in 7 flights landed an hour or more late, and 1 in 40 three hours or more; 6.4% were cancelled outright.

Share of all 4,844 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines2,52361%6.4%+1 min13.7%+78 minRepublic Airways 99%, American Airlines 1%
Delta Air Lines2,32162%6.5%−1 min13.3%+79 minRepublic Airways 95%, Delta Air Lines 5%, Endeavor Air 0%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at DCA). Delays build through the day as late planes knock on, so early flights usually do best.

30%65%100%6 a.m. departures: 82% on time (490 flights)826a7 a.m. departures: 82% on time (131 flights)827a8 a.m. departures: 75% on time (519 flights)758a9 a.m. departures: too few flights (92 flights)9a10 a.m. departures: 75% on time (259 flights)7510a11 a.m. departures: 77% on time (447 flights)7711anoon departures: 58% on time (186 flights)5812p1 p.m. departures: 56% on time (470 flights)561p2 p.m. departures: 55% on time (354 flights)552p3 p.m. departures: too few flights (39 flights)3p4 p.m. departures: too few flights (5 flights)4p5 p.m. departures: 45% on time (577 flights)455p6 p.m. departures: 42% on time (195 flights)426p7 p.m. departures: 41% on time (472 flights)417p8 p.m. departures: 48% on time (300 flights)488p9 p.m. departures: too few flights (8 flights)9p10 p.m. departures: 59% on time (294 flights)5910p
DCA → LGA, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By airline and hour

DepartsAmerican AirlinesDelta Air Lines
6 a.m.75%89%
8 a.m.74%76%
10 a.m.74%—
11 a.m.79%76%
noon55%—
1 p.m.58%55%
2 p.m.54%—
5 p.m.47%43%
6 p.m.41%—
7 p.m.40%41%
8 p.m.—48%
10 p.m.58%—

Last flight of the day

On DCA → LGA, each airline's last flight of the day was cancelled 7.9% of the time, against 6.2% for its earlier flights (1.3× as often). It arrived 3+ hours late 2.3% of the time (earlier flights: 2.6%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
American Airlines10:30 p.m.9.3%1.4%5.9%first flight 6:59 a.m.
Delta Air Lines8:40 p.m.6.4%3.3%6.5%first flight 6:20 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in LGA tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (81%). Worst: July (60%).

40%70%100%Jan: 73% on time (1,125 flights)73JanFeb: 67% on time (1,116 flights)67FebMar: 68% on time (1,209 flights)68MarApr: 71% on time (1,171 flights)71AprMay: 66% on time (1,185 flights)66MayJun: 68% on time (1,158 flights)68JunJul: 60% on time (1,208 flights)60JulAug: 69% on time (1,188 flights)69AugSep: 79% on time (1,148 flights)79SepOct: 81% on time (1,195 flights)81OctNov: 74% on time (1,142 flights)74NovDec: 69% on time (985 flights)69Dec

By day of week

DayFlightsOn timeCancelled
Monday76960%10.8%
Tuesday75665%5.9%
Wednesday74661%4.0%
Thursday73955%6.5%
Friday74662%5.2%
Saturday43978%2.7%
Sunday64955%8.5%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Air traffic & airport (NAS) 45%Late inbound plane 31%Airline (crew, maintenance, ops) 18%Severe weather 6%

Cancellations: air traffic/airport 140 · weather 99 · airline 73

Month by month

40%70%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2023: 72% on time, 6.4% cancelledOct 2023: 89% on time, 0.0% cancelledNov 2023: 88% on time, 0.0% cancelledDec 2023: 82% on time, 0.9% cancelledJan 2024: 73% on time, 6.3% cancelledFeb 2024: 80% on time, 2.4% cancelledMar 2024: 82% on time, 0.3% cancelledApr 2024: 74% on time, 1.4% cancelledMay 2024: 71% on time, 2.1% cancelledJun 2024: 76% on time, 4.0% cancelledJul 2024: 67% on time, 4.3% cancelledAug 2024: 63% on time, 11.0% cancelledSep 2024: 90% on time, 0.0% cancelledOct 2024: 89% on time, 0.0% cancelledNov 2024: 80% on time, 0.0% cancelledDec 2024: 70% on time, 0.3% cancelledJan 2025: 74% on time, 8.4% cancelledFeb 2025: 66% on time, 6.2% cancelledMar 2025: 76% on time, 0.8% cancelledApr 2025: 77% on time, 0.3% cancelledMay 2025: 61% on time, 5.1% cancelledJun 2025: 60% on time, 7.8% cancelledJul 2025: 61% on time, 15.3% cancelledAug 2025: 81% on time, 1.7% cancelledSep 2025: 77% on time, 1.8% cancelledOct 2025: 64% on time, 4.0% cancelledNov 2025: 54% on time, 4.8% cancelledDec 2025: 55% on time, 3.2% cancelledJan 2026: 71% on time, 9.2% cancelledFeb 2026: 55% on time, 8.7% cancelledMar 2026: 47% on time, 11.0% cancelledApr 2026: 64% on time, 1.4% cancelledMay 2026: 66% on time, 2.4% cancelledJun 2026: 68% on time, 5.8% cancelledJul 2026: 52% on time, 15.5% cancelledAug 2026: 63% on time, 8.4% cancelled
Share of flights on time, by month (hover a point for cancellations)
DCA → LGA, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
DL 57728:15 a.m.23477%4.3%−8 minRepublic Airways
DL 574211:00 a.m.20372%6.4%−2 minRepublic Airways
DL 57471:30 p.m.22859%6.6%+4 minRepublic Airways
DL 57635:40 p.m.34743%9.5%+18 minRepublic Airways
DL 57527:40 p.m.19141%15.2%+16 minRepublic Airways
DL 57688:40 p.m.29748%7.1%+13 minRepublic Airways

Worst days in the past year

DateFlightsOn timeCancelled
Jul 6, 2026150%9
Jan 26, 2026150%13
Feb 23, 2026150%15
Dec 14, 2025130%5
Jan 25, 2026130%13

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Washington or New York. BWI → ISP has been 15 points more reliable.

RouteFlightsOn timeCancelled
DCA → LGA (this route)4,84461%6.4%
BWI → ISP Baltimore/Washington to Long Island MacArthur1,26076%1.9%
IAD → EWR Washington Dulles to Newark1,82474%2.9%
DCA → JFK Washington Reagan National to New York JFK2,72973%6.1%
IAD → LGA Washington Dulles to LaGuardia1,45068%6.9%
DCA → EWR Washington Reagan National to Newark3,24767%6.4%
DCA → HPN Washington Reagan National to Westchester1,35457%7.3%

Questions

How often are flights from DCA to LGA on time?

61% of 4,844 scheduled flights from Washington, DC to New York, NY arrived within 15 minutes of schedule between September 2025 and August 2026. 6.4% were cancelled.

What is the best time of day to fly DCA to LGA?

Flights scheduled to leave at 7 a.m. were the most reliable (82% on time). The 7 p.m. departures were the least (41%).

Which airline is most on time from DCA to LGA?

Delta Air Lines: 62% of its 2,321 flights on the route arrived on time. American Airlines: 61%.

What month has the most delays from DCA to LGA?

July (60% on time). The best month is October (81%), over 2023–2026.

Is the last flight of the day from DCA to LGA more likely to be cancelled?

Yes. Each airline's last DCA–LGA flight of the day was cancelled 7.9% of the time over the past year, against 6.2% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.