ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
ROC → BWI
Rochester to Baltimore: 1,104 nonstop flights a year
On time (12 months)
83%
Cancelled
1.4%
avg delay 14 min
Best time to leave
Before 9 AM
93% on time vs 76% 3 to 6 PM
Most reliable airline
Southwest
81% chance on time
Lowest nonstop fare seen in the next two months: $404 (Southwest 2246 on 2026-10-26). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
6 nonstop. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.
Best overall#1 · Nonstop · 1h 15m
6:05 AM → 7:20 AM
95%
arrive on time
96% on time · 1.0% cancel6:05 AM ROC → 7:20 AM BWI1h 15m
Southwest 4028
Boeing 737 MAX 8 or 737-700 · 1–20 yrs oldFind Southwest 4028 fares Opens this date on Aviasales#2 · Nonstop · 1h 25m
5:55 AM → 7:20 AM
86%
arrive on time
87% on time · 1.7% cancel5:55 AM ROC → 7:20 AM BWI1h 25m
Southwest 1551
Boeing 737-800 or 737 MAX 8 · 3–10 yrs oldFind Southwest 1551 fares Opens this date on Aviasales#3 · Nonstop · 1h 20m
12:25 PM → 1:45 PM
83%
arrive on time
84% on time · 1.1% cancel12:25 PM ROC → 1:45 PM BWI1h 20m
Southwest 1799
Boeing 737 MAX 8 or 737-800 · 3–19 yrs oldFind Southwest 1799 fares Opens this date on Aviasales#4 · Nonstop · 1h 20m
4:00 PM → 5:20 PM
82%
arrive on time
83% on time · 1.0% cancel4:00 PM ROC → 5:20 PM BWI1h 20m
Southwest 1711
Boeing 737-700 · 15–23 yrs oldFind Southwest 1711 fares Opens this date on Aviasales#5 · Nonstop · 1h 15m
12:35 PM → 1:50 PM
75%
arrive on time
76% on time · 1.0% cancel12:35 PM ROC → 1:50 PM BWI1h 15m
Southwest 4029
Boeing 737 MAX 8 or 737-700 · 2–21 yrs oldFind Southwest 4029 fares Opens this date on Aviasales#6 · Nonstop · 1h 20m
5:50 PM → 7:10 PM
72%
arrive on time
73% on time · 1.1% cancel5:50 PM ROC → 7:10 PM BWI1h 20m
Southwest 2392
Boeing 737-700 · 9–23 yrs oldFind Southwest 2392 fares Opens this date on Aviasales
Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines81%
1,104 flights · 83% on time as flown · 1.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
370 flights · avg delay 7 min
- 9 AM to noon91%
57 flights · avg delay 7 min
- Noon to 3 PM77%
313 flights · avg delay 15 min
- 3 to 6 PM76%
334 flights · avg delay 19 min
Smarter routing
Nearby airports that run more on time
BUF → BWI 85% chance on time
Buffalo Niagara International Airport to Baltimore/Washington International Thurgood Marshall Airport · 1,732 flights a year · 55 mi from your airports · yours: 81%
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