Reliable Flight Search
BetaThe insider way to pick a flight: on-time records, the odds each connection is made, legroom and the age of the planes that actually fly the route. Things airline sites and the big booking sites don’t show you. US airlines and airports.
BWI → CVG
Baltimore to Cincinnati / Covington: 721 nonstop flights a year
On time (12 months)
80%
Cancelled
1.2%
avg delay 13 min
Best time to leave
9 AM to noon
91% on time vs 64% after 9 PM
Most reliable airline
Southwest
79% chance on time
Lowest nonstop fare seen in the next two months: $351 (United 1223 on 2026-10-22). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
3 nonstop · ranked by overall best · published legroom for 3 of 3
Fares seen on this date: nonstop from 351 · any route from 145 (recent searches, one way, per person; each card opens the live price)
Top pick#1 · Nonstop · 1h 35m
11:10 AM → 12:45 PM
83
score
price
live on Aviasales
87%
arrive on time
88% on time · 1.2% cancel11:10 AM BWI → 12:45 PM CVG1h 35m
Southwest 3895
Boeing 737-800 or 737 MAX 8 · 3–14 yrs oldLegroom 31–34 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 3895 fares Opens this date on Aviasales#2 · Nonstop · 1h 35m
2:55 PM → 4:30 PM
48
score
price
live on Aviasales
80%
arrive on time
81% on time · 1.0% cancel2:55 PM BWI → 4:30 PM CVG1h 35m
Southwest 988
Boeing 737-700 · 9–22 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 988 fares Opens this date on Aviasales#3 · Nonstop · 1h 35m
9:50 PM → 11:25 PM
30
score
price
live on Aviasales
69%
arrive on time
70% on time · 0.9% cancel9:50 PM BWI → 11:25 PM CVG1h 35m
Southwest 1108
Boeing 737 MAX 8 or 737-800 · 1–19 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 1108 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. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines79%
721 flights · 80% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon91%
294 flights · avg delay 7 min
- Noon to 3 PM79%
47 flights · avg delay 11 min
- 6 to 9 PM88%
89 flights · avg delay 6 min
- After 9 PM64%
266 flights · avg delay 23 min
Best day: Wednesday (83%). Worst: Sunday (70%).
Smarter routing
Nearby airports that run more on time
IAD → CVG 81% chance on time
Washington Dulles International Airport to Cincinnati Northern Kentucky International Airport · 536 flights a year · 45 mi from your airports · yours: 79%
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