Route on-time record
RIC to BWI: most on-time flights and the best time to fly
Richmond (Richmond International Airport) to Baltimore (Baltimore/Washington International Thurgood Marshall Airport). 729 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.5% were cancelled. The most reliable flight number was Southwest 4004 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
RIC → BWI
Richmond to Baltimore: 729 nonstop flights a year
On time (12 months)
76%
Cancelled
1.5%
avg delay 17 min
Best time to leave
Before 9 AM
90% on time vs 54% 6 to 9 PM
Most reliable airline
Southwest
75% 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 · Southwest 4004
6:00 AM → 6:55 AM55m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 4317; its record covers all of them.
90%
chance on time
- On time (history)
- 93%
- Cancelled
- 1.1%
- Avg arrival delay
- 2 min
- Arrived on time 93% of the time (87 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 54%).
Moderate track record · 87 flights
Find Southwest 4004 fares Opens this date on Aviasales#2 · Southwest 4630
6:10 PM → 7:10 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
68%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 78% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 54% on time; Before 9 AM: 90%).
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 4630 fares Opens this date on Aviasales#3 · Southwest 4133
5:35 PM → 6:35 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
60%
chance on time
- On time (history)
- 58%
- Cancelled
- 0.0%
- Avg arrival delay
- 25 min
- Arrived on time 58% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (55 flights), so its score leans on the airline's record at this hour.
Limited track record · 55 flights
Find Southwest 4133 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines75%
729 flights · 76% on time as flown · 1.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
364 flights · avg delay 7 min
- 3 to 6 PM68%
231 flights · avg delay 21 min
- 6 to 9 PM54%
133 flights · avg delay 38 min
Best day: Tuesday (83%). Worst: Monday (70%).
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 aircraft37%
- Airline (crew, maintenance, boarding)35%
- Air traffic control and airport volume16%
- Severe weather12%
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
RIC to BWI questions
- What time of day is best to fly RIC to BWI?
- Before 9 AM: 90% of flights arrived on time, against 54% 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 RIC to BWI?
- Southwest, with a season-adjusted 75% chance of operating and arriving on time over 729 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 RIC to BWI?
- December (66% on time); the best was November (87%), 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 RIC
- BWI to RIC (return)
- RIC to ATL 88%
- RIC to CLT 82%
- RIC to LGA 70%
- RIC to ORD 76%
- RIC to BOS 78%
- RIC to MCO 71%
- RIC to DFW 69%
- RIC to FLL 74%
- RIC to DTW 84%
- RIC to DEN 77%
- RIC to MIA 82%
- RIC to EWR 67%
Live status: FAA delays and ground stops