Trenton Mercer Airport (TTN): Delays & On-Time Performance
Data through May 2026
Trenton Mercer Airport (TTN) in Trenton, NJ is a middle-of-the-pack performer: 78% of departures are on time, within a few points of the national 78%. It hosts 2 airlines flying 3 departures a day to 11 destinations, with cancellations at 3.4%.
- Departures on-time
- 78%
- left <15 min late
- Avg dep delay
- 20 min
- Arrivals on-time
- 73%
- Cancelled
- 3.4%
- Destinations
- 11
- nonstop
- Airlines
- 2
Plan your departure from TTN
The choices most likely to improve your odds, based on this airport’s historical record.
- Best departure time
- Around 9 a.m.
- 87% on-time
- Best day to fly
- Wednesday
- 83% on-time
- Cancellation risk
- 3.4%
- above the US average
Monthly on-time trend
Best time of day to depart from TTN
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 19 min |
| Tuesday | 76% | 25 min |
| Wednesdaybest | 83% | 10 min |
| Thursday | 80% | 18 min |
| Friday | 80% | 15 min |
| Saturday | 82% | 14 min |
| Sunday | 68% | 34 min |
Busiest routes from TTN
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| TTN → MCO (Orlando) | 542 | 80% | 19 min |
| TTN → TPA (Tampa) | 235 | 78% | 18 min |
Where flights into TTN come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| MCO (Orlando) → TTN | 542 | 73% | 21 min |
| TPA (Tampa) → TTN | 234 | 77% | 16 min |
What causes delays at TTN
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing TTN.
- Late-arriving aircraft56%
- Airline operations18%
- National airspace system23%
- Weather3%
Alternative airports near Trenton
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| PHL — Philadelphia International Airport | 36 mi | 77% | 20 min |
| ABE — Lehigh Valley International Airport | 42 mi | 83% | 18 min |
| EWR — Newark Liberty International Airport | 44 mi | 79% | 18 min |
| ACY — Atlantic City International Airport | 58 mi | 82% | 15 min |
| JFK — John F. Kennedy International Airport | 60 mi | 79% | 17 min |
Compare the airport-level record first, then check the exact route you plan to book.
Frequently asked questions
- How often are flights delayed at TTN?
- 22% of departures from Trenton Mercer Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 20 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from TTN?
- Flights scheduled around 9 a.m. depart on time 87% of the time at TTN, versus 62% around 5 p.m.. Booking before noon is the usual rule of thumb here.
- How often are flights cancelled at TTN?
- 3.4% of scheduled departures from TTN were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 2,276 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.