Route
MHT → BWI
Manchester-Boston Regional Airport Baltimore/Washington International Thurgood Marshall Airport
How punctual is this route?
- On-time arrivals
- 88.4%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,721
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Air traffic control & airport 25%
- Airline (crew, maintenance, cleaning) 24%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.4% | 146 |
| October 2025 | 85.3% | 150 |
| November 2025 | 91.7% | 147 |
| December 2025 | 83.0% | 153 |
| January 2026 | 86.6% | 132 |
| February 2026 | 87.4% | 130 |
| March 2026 | 91.0% | 145 |
| April 2026 | 95.9% | 147 |
| May 2026 | 87.6% | 153 |
| June 2026 | 92.5% | 146 |
| July 2026 | 88.4% | 151 |
| August 2026 | 80.0% | 121 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,721 | 88.4% | 0.8% | 71 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN1706
8% late · 64 flights
-
WN4657
3% late · 60 flights
-
WN1909
14% late · 58 flights
-
WN2578
16% late · 58 flights
-
WN992
16% late · 58 flights
-
WN3412
2% late · 57 flights
-
WN3413
7% late · 57 flights
-
WN4659
0% late · 57 flights
-
WN2918
2% late · 52 flights
-
WN173
7% late · 47 flights
-
WN2855
15% late · 47 flights
-
WN1891
13% late · 45 flights
-
WN329
7% late · 45 flights
-
WN1121
9% late · 43 flights
-
WN490
19% late · 42 flights
-
WN2292
15% late · 40 flights
-
WN1638
21% late · 33 flights
-
WN1647
0% late · 33 flights
-
WN4018
3% late · 33 flights
-
WN4019
9% late · 33 flights
-
WN1255
0% late · 31 flights
-
WN3789
16% late · 31 flights
-
WN3811
29% late · 31 flights
-
WN3997
10% late · 31 flights
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