Route on-time record
DCA to LEX: most on-time flights and the best time to fly
Washington (Ronald Reagan Washington National Airport) to Lexington (Blue Grass Airport). 303 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 3.6% were cancelled. The most reliable flight number was Republic 5729 at 9:00 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DCA → LEX
Washington to Lexington: 303 nonstop flights a year
On time (12 months)
75%
Cancelled
3.6%
avg delay 23 min
Best time to leave
No clear winner
Most reliable airline
Republic
72% chance on time
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 5729 · sold as American Eagle, Delta Connection or United Express
9:00 PM → 10:37 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 75%
- Cancelled
- 3.6%
- Avg arrival delay
- 23 min
- Arrived on time 75% of the time (291 flights, Jun 2025 to May 2026).
- Cancelled 3.6% of the time (11 of 303).
- Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).
- 50% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 291 flights
Find 9:00 PM 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)72%
303 flights · 75% on time as flown · 3.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- After 9 PM75%
302 flights · avg delay 23 min
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
- Late-arriving aircraft52%
- Airline (crew, maintenance, boarding)25%
- Air traffic control and airport volume22%
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
DCA to LEX questions
- Which airline is most on time from DCA to LEX?
- Republic, with a season-adjusted 72% chance of operating and arriving on time over 303 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 DCA to LEX?
- February (70% on time); the best was October (90%), 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 DCA
- LEX to DCA (return)
- DCA to BOS 71%
- DCA to ORD 74%
- DCA to ATL 78%
- DCA to LGA 67%
- DCA to MCO 74%
- DCA to BNA 77%
- DCA to MIA 75%
- DCA to DFW 77%
- DCA to IAH 81%
- DCA to DTW 76%
- DCA to CLT 78%
- DCA to MSP 78%
Live status: FAA delays and ground stops