Route on-time record
LGA to DCA: most on-time flights and the best time to fly
New York (LaGuardia Airport) to Washington (Ronald Reagan Washington National Airport). 4,816 nonstop flights in Jun 2025 to May 2026, 68% arrived within 15 minutes and 5.7% were cancelled. The most reliable flight number was Republic 4536 at 6:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LGA → DCA
New York to Washington: 4,816 nonstop flights a year
On time (12 months)
68%
Cancelled
5.7%
avg delay 22 min
Best time to leave
Before 9 AM
82% on time vs 49% 6 to 9 PM
Most reliable airline
Republic
64% chance on time
Lowest nonstop fare seen in the next two months: $101 (American 2142 on 2026-10-23). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Republic 4536 · sold as American Eagle, Delta Connection or United Express
6:30 AM → 7:59 AM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-17.
86%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 97% of the time (34 flights, Jun 2025 to May 2026).
- Never cancelled in 34 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Limited track record · 34 flights
Find 6:30 AM flight fares Opens this date on Aviasales#2 · Republic 5770 · sold as American Eagle, Delta Connection or United Express
6:00 AM → 7:22 AM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Republic 4487; its record covers all of them.
84%
chance on time
- On time (history)
- 88%
- Cancelled
- 4.3%
- Avg arrival delay
- 9 min
- Arrived on time 88% of the time (382 flights, Jun 2025 to May 2026).
- Cancelled 4.3% of the time (17 of 400).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Strong track record · 382 flights
Find 6:00 AM flight fares Opens this date on Aviasales#3 · Republic 5742 · sold as American Eagle, Delta Connection or United Express
8:50 AM → 10:01 AM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 85%
- Cancelled
- 3.5%
- Avg arrival delay
- 10 min
- Arrived on time 85% of the time (164 flights, Jun 2025 to May 2026).
- Cancelled 3.5% of the time (6 of 170).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Moderate track record · 164 flights
Find 8:50 AM flight fares Opens this date on Aviasales#4 · Republic 4612 · sold as American Eagle, Delta Connection or United Express
6:15 AM → 7:44 AM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-30.
78%
chance on time
- On time (history)
- 86%
- Cancelled
- 3.3%
- Avg arrival delay
- 5 min
- Arrived on time 86% of the time (116 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (4 of 120).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Moderate track record · 116 flights
Find 6:15 AM flight fares Opens this date on Aviasales#5 · Republic 4393 · sold as American Eagle, Delta Connection or United Express
9:03 AM → 10:35 AM1h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 88%
- Cancelled
- 5.9%
- Avg arrival delay
- 7 min
- Arrived on time 88% of the time (112 flights, Jun 2025 to May 2026).
- Cancelled 5.9% of the time (7 of 119).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Moderate track record · 112 flights
Find 9:03 AM flight fares Opens this date on Aviasales#6 · American 851
6:30 AM → 7:49 AM1h 19m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.0%
- Avg arrival delay
- 43 min
- Arrived on time 67% of the time (12 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
- Short track record (12 flights), so its score leans on the route's record at this hour.
Limited track record · 12 flights
Find American 851 fares Opens this date on Aviasales#7 · Republic 5749 · sold as American Eagle, Delta Connection or United Express
11:30 AM → 12:59 PM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 80%
- Cancelled
- 3.4%
- Avg arrival delay
- 13 min
- Arrived on time 80% of the time (336 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (12 of 348).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Strong track record · 336 flights
Find 11:30 AM flight fares Opens this date on Aviasales#8 · Republic 4654 · sold as American Eagle, Delta Connection or United Express
11:00 AM → 12:38 PM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 11:00 AM flight fares Opens this date on Aviasales#9 · Republic 4560 · sold as American Eagle, Delta Connection or United Express
10:10 AM → 11:43 AM1h 33m nonstop
Local times, typical schedule. Last flown 2026-05-20.
75%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 84% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
- Short track record (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find 10:10 AM flight fares Opens this date on Aviasales#10 · Republic 4491 · sold as American Eagle, Delta Connection or United Express
7:44 AM → 9:18 AM1h 34m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 84%
- Cancelled
- 3.4%
- Avg arrival delay
- 10 min
- Arrived on time 84% of the time (56 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (2 of 58).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; 6 to 9 PM: 49%).
- Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
Limited track record · 56 flights
Find 7:44 AM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)64%
4,767 flights · 68% on time as flown · 5.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM82%
1,275 flights · avg delay 10 min
- 9 AM to noon79%
886 flights · avg delay 14 min
- Noon to 3 PM62%
867 flights · avg delay 27 min
- 3 to 6 PM57%
861 flights · avg delay 30 min
- 6 to 9 PM49%
627 flights · avg delay 35 min
- After 9 PM60%
300 flights · avg delay 30 min
Best day: Saturday (90%). Worst: Friday (74%).
Smarter routing
Nearby airports that run more on time
ISP → BWI 83% chance on time
Long Island MacArthur Airport to Baltimore/Washington International Thurgood Marshall Airport · 1,201 flights a year · 70 mi from your airports · yours: 64%
EWR → IAD 71% chance on time
Newark Liberty International Airport to Washington Dulles International Airport · 1,474 flights a year · 40 mi from your airports · yours: 64%
LGA → IAD 69% chance on time
LaGuardia Airport to Washington Dulles International Airport · 979 flights a year · 23 mi from your airports · yours: 64%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume41%
- Late-arriving aircraft37%
- Airline (crew, maintenance, boarding)18%
- Severe weather4%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
LGA to DCA questions
- What time of day is best to fly LGA to DCA?
- Before 9 AM: 82% of flights arrived on time, against 49% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from LGA to DCA?
- Republic, with a season-adjusted 64% chance of operating and arriving on time over 4,767 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on LGA to DCA?
- February (70% on time); the best was September (84%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from LGA
- DCA to LGA (return)
- LGA to ORD 67%
- LGA to ATL 76%
- LGA to BOS 73%
- LGA to DFW 70%
- LGA to MIA 70%
- LGA to MCO 69%
- LGA to DEN 71%
- LGA to FLL 68%
- LGA to CLT 77%
- LGA to IAH 76%
- LGA to DTW 78%
- LGA to BNA 71%
Live status: FAA delays and ground stops