Who flies it
Flights sold as Frontier Airlines, by the airline that operates them.
| Operated by | Flights | On time | Cancelled | Typical arrival |
|---|---|---|---|---|
| Frontier Airlines | 213,022 | 71% | 2.1% | −6 min |
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for Frontier Airlines flights: when a flight was late, it was under 45 minutes late 48% of the time. About 1 in 9 flights landed an hour or more late, and 1 in 44 three hours or more; 2.0% were cancelled outright.
- On time or early71%
- 15–30 min late8.0%
- 30–60 min late7.8%
- 1–2 hours late6.2%
- 2–3 hours late2.4%
- 3+ hours late2.3%
- Diverted0.2%
- Cancelled2.0%
Share of all 213,022 scheduled flights, past 12 months, by arrival time against schedule.
By departure hour
Month by month
Share of flights on time, by month (hover a point for cancellations)
Why flights were late
Late inbound plane 52%Airline (crew, maintenance, ops) 25%Air traffic & airport (NAS) 20%Severe weather 3%
Most reliable routes
| Route | Flights | On time |
|---|---|---|
| SLC → LAX | 475 | 89% |
| LAS → SLC | 535 | 88% |
| ONT → DEN | 558 | 86% |
| LAX → SLC | 475 | 84% |
| PHX → SLC | 708 | 83% |
| DEN → LAX | 797 | 83% |
| CVG → TPA | 372 | 83% |
| MCO → DEN | 896 | 82% |
| AUS → DEN | 606 | 82% |
| DEN → SEA | 439 | 82% |
| DEN → SLC | 1,033 | 82% |
| DTW → DEN | 486 | 82% |
| CVG → DEN | 381 | 81% |
| PHX → LAX | 501 | 81% |
| DEN → SAT | 396 | 81% |
| SLC → PHX | 708 | 81% |
| SAT → DEN | 394 | 81% |
| MCO → IND | 399 | 81% |
| LAX → DEN | 798 | 80% |
| LAS → ONT | 724 | 80% |
Least reliable routes
| Route | Flights | On time |
|---|---|---|
| ATL → LGA | 950 | 43% |
| LAX → SFO | 395 | 47% |
| LGA → ATL | 949 | 50% |
| SJU → ATL | 383 | 54% |
| PHL → SJU | 915 | 54% |
| ATL → SJU | 387 | 55% |
| ATL → EWR | 707 | 56% |
| LAS → SFO | 904 | 58% |
| ATL → RDU | 646 | 59% |
| ATL → DFW | 934 | 59% |
| SFO → LAS | 906 | 59% |
| ATL → BWI | 973 | 59% |
| ATL → PHL | 1,085 | 60% |
| FLL → PHL | 657 | 60% |
| IAH → ATL | 827 | 60% |
| BOS → ATL | 453 | 61% |
| SJU → PHL | 916 | 61% |
| PHL → MIA | 369 | 61% |
| ATL → LAS | 596 | 61% |
| FLL → ATL | 1,007 | 62% |
Routes listed have at least 365 Frontier Airlines flights in the past year. Compare all airlines · Method.