Flight YX3521
Republic Airways flight YX3521
Looking for YX3521 in the air…
Dulles (IAD) to Cincinnati / Covington (CVG)
Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 129 minutes. It was cancelled 9.1% of the time.
- On-time arrivals
- 64.3%
- Less than 15 minutes late
- Cancelled
- 9.1%
- Of scheduled flights
- Average delay when late
- 129 min
- Flights arriving 15+ minutes late
- Flights tracked
- 77
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 22%
- Extreme weather 18%
- Air traffic control & airport 11%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Minneapolis (MSP) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 58 minutes. It was cancelled 8.8% of the time.
- On-time arrivals
- 67.2%
- Less than 15 minutes late
- Cancelled
- 8.8%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 68
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 61%
- Airline (crew, maintenance, cleaning) 21%
- Late-arriving aircraft 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cleveland (CLE) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 92.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 53
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 53%
- Air traffic control & airport 47%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Greenville/Greer/Spartanburg (GSP) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 79 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 47
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 69%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 14%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cedar Rapids (CID) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 121 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 83.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 121 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 81%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Buffalo (BUF) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 221 minutes. It was cancelled 4.3% of the time.
- On-time arrivals
- 95.5%
- Less than 15 minutes late
- Cancelled
- 4.3%
- Of scheduled flights
- Average delay when late
- 221 min
- Flights arriving 15+ minutes late
- Flights tracked
- 23
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Hartford (BDL)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 11.1%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 21%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Dulles (IAD)
Only 7 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 7
- Scheduled flights in the period
Newark (EWR) to Raleigh/Durham (RDU)
Only 5 flights on record, which is too few for reliable odds.
- On-time arrivals
- 80.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 114 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Air traffic control & airport 23%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Bangor (BGR) to Newark (EWR)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Dulles (IAD) to Cleveland (CLE)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Dulles (IAD) to Detroit (DTW)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dulles (IAD) to Rochester (ROC)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 30 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 53%
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.9% | 27 |
| October 2025 | 80.6% | 31 |
| November 2025 | 71.4% | 26 |
| December 2025 | 58.6% | 31 |
| January 2026 | 83.9% | 31 |
| February 2026 | 84.6% | 27 |
| March 2026 | 92.6% | 28 |
| April 2026 | 96.7% | 30 |
| May 2026 | 80.6% | 31 |
| June 2026 | 62.1% | 29 |
| July 2026 | 72.7% | 29 |
| August 2026 | 44.4% | 9 |
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