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 → BDL
Baltimore to Hartford: 1,763 nonstop flights a year
On time (12 months)
81%
Cancelled
1.9%
avg delay 11 min
Best time to leave
Before 9 AM
95% on time vs 60% after 9 PM
Most reliable airline
Southwest
80% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
11 nonstop · ranked by overall best · published legroom for 11 of 11
Top pick#1 · Nonstop · 1h 15m
10:45 AM → 12:00 PM
75
score
91%
arrive on time
93% on time · 1.4% cancel10:45 AM BWI → 12:00 PM BDL1h 15m
Southwest 1044
Boeing 737-700 or 737-800 · 3–22 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 1044 fares Opens this date on Aviasales#2 · Nonstop · 1h 20m
10:25 AM → 11:45 AM
70
score
93%
arrive on time
94% on time · 1.6% cancel10:25 AM BWI → 11:45 AM BDL1h 20m
Southwest 1282 · also flew as 312
Boeing 737-700 · 16–23 yrs oldLegroom 31–36 in · 15.5–17 in wide · Economy (all seating types)Find Southwest 1282 fares Opens this date on Aviasales#3 · Nonstop · 1h 25m
6:30 AM → 7:55 AM
68
score
92%
arrive on time
94% on time · 1.6% cancel6:30 AM BWI → 7:55 AM BDL1h 25m
Southwest 3306
Boeing 737-700 · 5–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 3306 fares Opens this date on Aviasales#4 · Nonstop · 1h 20m
6:50 AM → 8:10 AM
68
score
91%
arrive on time
93% on time · 1.4% cancel6:50 AM BWI → 8:10 AM BDL1h 20m
Southwest 3845
Boeing 737-700 · 8–22 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 3845 fares Opens this date on Aviasales#5 · Nonstop · 1h 15m
2:55 PM → 4:10 PM
64
score
80%
arrive on time
81% on time · 1.6% cancel2:55 PM BWI → 4:10 PM BDL1h 15m
Southwest 479
Boeing 737 MAX 8 · 1–11 yrs oldLegroom 31–34 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 479 fares Opens this date on Aviasales#6 · Nonstop · 1h 15m
2:05 PM → 3:20 PM
58
score
80%
arrive on time
81% on time · 1.6% cancel2:05 PM BWI → 3:20 PM BDL1h 15m
Southwest 2550
Boeing 737 MAX 8 or 737-700 · 1–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 2550 fares Opens this date on Aviasales#7 · Nonstop · 1h 20m
1:20 PM → 2:40 PM
56
score
85%
arrive on time
86% on time · 1.7% cancel1:20 PM BWI → 2:40 PM BDL1h 20m
Southwest 3324
Boeing 737-700 · 16–22 yrs oldLegroom 31–36 in · 15.5–17 in wide · Economy (all seating types)Find Southwest 3324 fares Opens this date on Aviasales#8 · Nonstop · 1h 20m
9:50 PM → 11:10 PM
43
score
69%
arrive on time
70% on time · 1.4% cancel9:50 PM BWI → 11:10 PM BDL1h 20m
Southwest 1048
Boeing 737 MAX 8 or 737-800 · 1–13 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 1048 fares Opens this date on Aviasales#9 · Nonstop · 1h 15m
5:15 PM → 6:30 PM
39
score
74%
arrive on time
75% on time · 1.6% cancel5:15 PM BWI → 6:30 PM BDL1h 15m
Southwest 2390
Boeing 737-700 · 11–22 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 2390 fares Opens this date on Aviasales#10 · Nonstop · 1h 20m
7:10 PM → 8:30 PM
34
score
71%
arrive on time
73% on time · 1.5% cancel7:10 PM BWI → 8:30 PM BDL1h 20m
Southwest 1973
Boeing 737-700 · 4–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 1973 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 Airlines80%
1,763 flights · 81% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
358 flights · avg delay 3 min
- 9 AM to noon93%
357 flights · avg delay 4 min
- Noon to 3 PM84%
222 flights · avg delay 8 min
- 3 to 6 PM75%
280 flights · avg delay 18 min
- 6 to 9 PM72%
292 flights · avg delay 18 min
- After 9 PM60%
254 flights · avg delay 22 min
Best day: Wednesday (80%). Worst: Sunday (71%).
Smarter routing
Nearby airports that run more on time
IAD → BDL 84% chance on time
Washington Dulles International Airport to Bradley International Airport · 1,071 flights a year · 45 mi from your airports · yours: 80%
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