Route on-time record
RSW to BWI: most on-time flights and the best time to fly
Fort Myers (Southwest Florida International Airport) to Baltimore (Baltimore/Washington International Thurgood Marshall Airport). 1,454 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 2.0% were cancelled. The most reliable flight number was Southwest 1335 at 6:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
RSW → BWI
Fort Myers to Baltimore: 1,454 nonstop flights a year
On time (12 months)
80%
Cancelled
2.0%
avg delay 13 min
Best time to leave
Before 9 AM
96% on time vs 60% 6 to 9 PM
Most reliable airline
Southwest
78% 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 1335
6:20 AM → 8:45 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 60%).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 1335 fares Opens this date on Aviasales#2 · Southwest 3761
7:00 AM → 9:30 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-04-06.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 3.0%
- Avg arrival delay
- 7 min
- Arrived on time 91% of the time (32 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (1 of 33).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 60%).
- Short track record (32 flights), so its score leans on the airline's record at this hour.
Limited track record · 32 flights
Find Southwest 3761 fares Opens this date on Aviasales#3 · Southwest 2467
9:00 AM → 11:25 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 2356; its record covers all of them.
87%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 93% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Short track record (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find Southwest 2467 fares Opens this date on Aviasales#4 · Southwest 2734
9:30 AM → 11:55 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-04-01.
83%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- 80% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2734 fares Opens this date on Aviasales#5 · Southwest 4035
11:50 AM → 2:25 PM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-29.
81%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 85% of the time (39 flights, Jun 2025 to May 2026).
- Never cancelled in 39 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 (39 flights), so its score leans on the airline's record at this hour.
Limited track record · 39 flights
Find Southwest 4035 fares Opens this date on Aviasales#6 · Southwest 4036
8:50 PM → 11:20 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 73%
- Cancelled
- 3.2%
- Avg arrival delay
- 11 min
- Arrived on time 73% of the time (30 flights, Jun 2025 to May 2026).
- Cancelled 3.2% of the time (1 of 31).
- Leaves in this route's least on-time window (6 to 9 PM: 60% on time; Before 9 AM: 96%).
- 81% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 30 flights
Find Southwest 4036 fares Opens this date on Aviasales#7 · Southwest 4280
12:40 PM → 3:10 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-04-04.
73%
chance on time
- On time (history)
- 62%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 62% of the time (13 flights, Jun 2025 to May 2026).
- 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 (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 4280 fares Opens this date on Aviasales#8 · Southwest 1973
2:40 PM → 5:10 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-30.
73%
chance on time
- On time (history)
- 71%
- Cancelled
- 0.0%
- Avg arrival delay
- 28 min
- Arrived on time 71% of the time (24 flights, Jun 2025 to May 2026).
- 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 (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 1973 fares Opens this date on Aviasales#9 · Southwest 2070
5:05 PM → 7:35 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
69%
chance on time
- On time (history)
- 57%
- Cancelled
- 4.3%
- Avg arrival delay
- 64 min
- Arrived on time 57% of the time (21 flights, Jun 2025 to May 2026).
- 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 (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find Southwest 2070 fares Opens this date on Aviasales#10 · Southwest 976
4:50 PM → 7:20 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 69%
- Cancelled
- 0.0%
- Avg arrival delay
- 23 min
- Arrived on time 69% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Lands inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 54 flights
Find Southwest 976 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines78%
1,453 flights · 80% on time as flown · 2.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
380 flights · avg delay 4 min
- 9 AM to noon89%
339 flights · avg delay 7 min
- Noon to 3 PM75%
240 flights · avg delay 17 min
- 3 to 6 PM65%
231 flights · avg delay 23 min
- 6 to 9 PM60%
221 flights · avg delay 24 min
Best day: Tuesday (87%). Worst: Sunday (76%).
Smarter routing
Nearby airports that run more on time
RSW → IAD 88% chance on time
Southwest Florida International Airport to Washington Dulles International Airport · 467 flights a year · 45 mi from your airports · yours: 78%
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 aircraft53%
- Air traffic control and airport volume25%
- Airline (crew, maintenance, boarding)18%
- Severe weather5%
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
RSW to BWI questions
- What time of day is best to fly RSW to BWI?
- Before 9 AM: 96% of flights arrived on time, against 60% 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 RSW to BWI?
- Southwest, with a season-adjusted 78% chance of operating and arriving on time over 1,453 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 RSW to BWI?
- July (72% on time); the best was September (91%), 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 RSW
- BWI to RSW (return)
- RSW to ORD 76%
- RSW to ATL 85%
- RSW to BOS 69%
- RSW to EWR 80%
- RSW to DTW 75%
- RSW to CLT 83%
- RSW to DFW 75%
- RSW to PHL 72%
- RSW to JFK 78%
- RSW to MSP 81%
- RSW to MDW 76%
- RSW to DEN 81%
Live status: FAA delays and ground stops