Airline data
Frontier Airlines: on-time record for the flights it operated itself, July 2026
Frontier Airlines ran 62.5% of the 20,462 flights it operated itself on time in July 2026.
The month in figures
These figures count flights reported by Frontier Airlines under its own code.
Frontier Airlines finished behind the national picture in July 2026: only 62.5% of the 20,462 flights it operated itself arrived on time, against 69.4% across all reporting airlines. On this measure it sat on the weaker side of the national figure.
By raw on-time share Frontier Airlines was number 10 of the 12 airlines with at least 5,000 flights in July 2026, in the lower third of the order. Many of the gaps between neighbours in that order are within what one month of data can move, so the order is a listing, not a verdict.
Against the 11 other airlines with at least 5,000 flights in July 2026, Frontier Airlines was clearly ahead of 1 and clearly behind 8, counting only gaps one month of data can separate.
Late-arriving aircraft led the delay minutes BTS attributed to flights Frontier Airlines operated itself, with 54.8% of the total, the same picture as the national total for July 2026.
By flights operated it was one of the smaller airlines in the comparison, number 11 of 12, so a small number of disrupted flights shifts its share more than they would a giant's.
The separable routes leaned the other way: 1 of its 18 ranked routes ran clearly above the national share, 9 clearly below, and 8 within what one month of data can separate. More of them sat below the national figure than above it.
| Measure | Value |
|---|---|
| Flights it operated itself | 20,462 |
| On time | 62.5% |
| National on-time share | 69.4% |
Where it ran on time most and least often
3 of its five best routes touch Denver (DEN), so its strongest results sat around one airport.
5 of its five weakest routes touch Atlanta (ATL), so its weakest results sat around one airport.
Inside its own network the gap was wide: MCO to SJU ran on time 77.0% while ATL to BWI managed 40.8%, a spread of 30 points or more.
DEN, its busiest airport, is an endpoint of its best routes, so its busiest hub is part of its strongest results and the network's highs are not found only at its edges.
Its weakest routes avoid DEN, its busiest airport, so the poorer results sit away from the main hub, out in the rest of the network.
DEN, its busiest airport, appeared among the five routes with the highest raw on-time share and on none of the five lowest.
| Route | Flights | On time |
|---|---|---|
| MCO to SJU | 152 | 77.0% |
| DEN to PHX | 117 | 75.2% |
| DEN to DFW | 111 | 73.9% |
| SJU to MCO | 153 | 73.2% |
| DEN to LAS | 145 | 71.7% |
| Route | Flights | On time |
|---|---|---|
| ATL to BWI | 120 | 40.8% |
| ATL to PHL | 115 | 40.9% |
| ATL to MCO | 118 | 44.9% |
| BWI to ATL | 120 | 45.8% |
| MCO to ATL | 117 | 49.6% |
Its busiest airports
Departures were spread across its network; even the busiest airport, Denver (DEN), handled just 10.5%, under a quarter.
Its main hub outperformed its network: departures from DEN arrived on time 73.3%, above the airline-wide 62.5%. The airport carrying most of its traffic was therefore lifting its overall figure, not weighing on it.
| Airport | Departures | Share of its departures | On time |
|---|---|---|---|
| Denver (DEN) | 2,143 | 10.5% | 73.3% |
| Orlando (MCO) | 1,977 | 9.7% | 65.6% |
| Atlanta (ATL) | 1,974 | 9.6% | 49.5% |
| Las Vegas (LAS) | 1,417 | 6.9% | 60.8% |
| Dallas-Fort Worth (DFW) | 1,204 | 5.9% | 65.0% |
What delayed its late flights
With late-arriving aircraft the largest cause, extreme weather added 3.9% of the attributed minutes for flights Frontier Airlines operated itself, close to its national share of 6.4%.
Behind the late-arriving aircraft figure, air carrier and NAS delays ran level for flights Frontier Airlines operated itself, 21.9% against 19.4% of the attributed minutes, unlike the national figures.
Delay minutes for flights Frontier Airlines operated itself were concentrated: Late-arriving aircraft alone supplied 54.8% of them, nearly half or more of everything BTS attributed.
The air carrier category came next for flights Frontier Airlines operated itself, at 21.9% of the attributed delay minutes.
Delay causes are shares of the delay minutes BTS attributes to flights that arrived 15 minutes or more late, not shares of flights. Extreme weather here means BTS's extreme-weather category only; milder weather delays are generally reported under NAS.
| Cause | Frontier Airlines | National |
|---|---|---|
| Late-arriving aircraft | 54.8% | 41.8% |
| Air carrier | 21.9% | 31.7% |
| National Aviation System (NAS) | 19.4% | 19.9% |
| Extreme weather | 3.9% | 6.4% |
| Security | 0.0% | 0.1% |
Bag and fare rules we have checked
carry-on and personal-item size. On Frontier a personal item is included with every ticket and a carry-on bag is a paid add-on. The personal item must fit under the seat: at most 18 by 14 by 8 inches and 35 pounds. The carry-on goes in the overhead bin: at most 24 by 16 by 10 inches and 35 pounds. Carry-on charges do not apply to coats, canes, crutches, portable oxygen concentrators, respiratory and other assistive devices. Oversized personal items are charged extra.
checked-bag fees. Frontier does not have one standard checked-bag price. It says prices vary with your travel dates and when you buy, that booking ahead is cheaper than paying at the airport, and that its Bag Price Checker shows the current price. A checked bag can weigh up to 40 pounds and measure up to 62 linear inches. Bags of 41 to 50 pounds cost $75 each way extra. Certain bundles or elite status allow higher limits.
Basic Economy limits. A Frontier Basic fare includes a personal item that fits under the seat and nothing else by default: the carry-on, checked bags and a seat assignment cost extra, and prices vary by flight. Basic tickets have change fees that depend on when you bought the ticket and how close you are to departure. Bundles add some of these items and remove change fees.
changes and cancellation. Frontier tickets are generally non-refundable. A refund to the original payment method is available if you cancel inside 24 hours of booking and departure is 7 or more days out. If Frontier cancels your flight or makes a significant schedule change, you may be entitled to a refund if you did not take the rebooked flight.
changes and cancellation. For Basic or Standard tickets bought on or after September 25, 2026, Frontier charges no change fee if you change 60 or more days before departure, and $149 per passenger each way if you change closer than that, including same-day changes. Tickets bought earlier follow different fee schedules. Bundles (Economy, Premium, Business) and the separate Economy fare type have no change fees. Any new fare difference is charged, and if the new flight is cheaper there is no refund or credit.
seat selection. On Frontier you do not have to buy a seat. A Basic fare does not include a seat assignment; you can buy one when booking, afterwards, or at check-in. If you skip it, Frontier assigns a seat at no charge, but your group may be seated apart. Economy bundles include standard seating, and Frontier says it offers fee-free family seating.
pets in the cabin. Frontier takes pets only in the cabin, never as cargo, on U.S. domestic flights for a one-way fee. Accepted pets: small household birds, hamsters, guinea pigs, rabbits, cats and dogs. One pet per passenger, at least 8 weeks old, in a carrier that fits under the seat: at most 18 by 14 by 8 inches if hard-sided, or 18 by 14 by 11 inches if soft-sided. Only trained service dogs are allowed on international flights.
wheelchair and disability help. Frontier offers airport wheelchair service at all airport locations and encourages advance notice, though you can still tell a Frontier representative at the airport. Passengers with disabilities can preboard. A wheelchair or mobility device can pass the security checkpoint but usually cannot ride in the cabin; most are checked at the gate and handed back on arrival. For a wheelchair's main lithium-ion battery the limit is 300 watt-hours.
How these figures were counted
A flight counts as on time unless it arrives 15 minutes or more late. Cancelled and diverted flights count as not on time.
Routes are ranked only with at least 100 of its flights, and airlines are compared only with others that flew at least 5,000 flights.
A difference of a few points between two airlines, or between two directions, is within what one month of data can move. These figures describe July 2026 only.
These are figures for one month, July 2026, not a trend or forecast.
Source: US Department of Transportation, Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, July 2026, as loaded by BookWithAI.
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