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.
CLE → BWI
Cleveland to Baltimore: 969 nonstop flights a year
On time (12 months)
86%
Cancelled
1.4%
avg delay 9 min
Best time to leave
Before 9 AM
97% on time vs 72% 3 to 6 PM
Most reliable airline
Southwest
85% chance on time
Lowest nonstop fare seen in the next two months: $125 (Southwest 2464 on 2026-11-01). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
8 nonstop. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.
Best overall#1 · Nonstop · 1h 20m
5:40 AM → 7:00 AM
94%
arrive on time
95% on time · 1.1% cancel5:40 AM CLE → 7:00 AM BWI1h 20m
Southwest 1371
Boeing 737 MAX 8 or 737-800 · 1–12 yrs oldFind Southwest 1371 fares Opens this date on Aviasales#2 · Nonstop · 1h 25m
5:30 AM → 6:55 AM
93%
arrive on time
94% on time · 1.2% cancel5:30 AM CLE → 6:55 AM BWI1h 25m
Southwest 1860
Boeing 737-700 · 3–23 yrs oldFind Southwest 1860 fares Opens this date on Aviasales#3 · Nonstop · 1h 20m
10:30 AM → 11:50 AM
91%
arrive on time
92% on time · 1.4% cancel10:30 AM CLE → 11:50 AM BWI1h 20m
Southwest 3199
Boeing 737-700 · 17–23 yrs oldFind Southwest 3199 fares Opens this date on Aviasales#4 · Nonstop · 1h 20m
12:40 PM → 2:00 PM
90%
arrive on time
91% on time · 1.1% cancel12:40 PM CLE → 2:00 PM BWI1h 20m
Southwest 1372 · also flew as 4087
Boeing 737-700 or 737-800 · 2–22 yrs oldFind Southwest 1372 fares Opens this date on Aviasales#5 · Nonstop · 1h 15m
10:50 AM → 12:05 PM
88%
arrive on time
89% on time · 1.9% cancel10:50 AM CLE → 12:05 PM BWI1h 15m
Southwest 4008
Boeing 737-700 · 15–22 yrs oldFind Southwest 4008 fares Opens this date on Aviasales#6 · Nonstop · 1h 20m
5:00 PM → 6:25 PM
75%
arrive on time
76% on time · 1.1% cancel5:00 PM CLE → 6:25 PM BWI1h 20m
Southwest 3375
Boeing 737-700 or 737 MAX 8 · 3–22 yrs oldFind Southwest 3375 fares Opens this date on Aviasales#7 · Nonstop · 1h 20m
4:35 PM → 5:55 PM
72%
arrive on time
73% on time · 1.4% cancel4:35 PM CLE → 5:55 PM BWI1h 20m
Southwest 1497
Boeing 737-800 or 737 MAX 8 · 2–14 yrs oldFind Southwest 1497 fares Opens this date on Aviasales#8 · Nonstop · 1h 20m
5:55 PM → 7:15 PM
69%
arrive on time
70% on time · 1.9% cancel5:55 PM CLE → 7:15 PM BWI1h 20m
Southwest 1514
Boeing 737-700 · 19–23 yrs oldFind Southwest 1514 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 Airlines85%
969 flights · 86% on time as flown · 1.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM97%
373 flights · avg delay 2 min
- 9 AM to noon93%
153 flights · avg delay 3 min
- Noon to 3 PM83%
84 flights · avg delay 9 min
- 3 to 6 PM72%
339 flights · avg delay 18 min
Best day: Tuesday (89%). Worst: Sunday (84%).
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