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DelayAtlas

Carrier route record

F9MCO→LAS

Frontier Airlines · Orlando to Las Vegas

Flights
480
Period
September 2025 to August 2026
Share of route
25%
Carriers
5
BGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.

Frontier on MCO to LAS lands a B, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 480 flights. The strongest carrier on the route with a full sample, JetBlue Airways, flew 470 at 90.2% on time.

The US average over the same twelve months is 77.3%, so there is little to separate Frontier on MCO to LAS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

81.1%

Arrivals under 15 minutes late, of 472 completed flights

Avg delay

81 min

Across delayed arrivals only, not all flights

Cancelled

1.46%

National rate is 1.89%

Whole route

81.3%

Every carrier on MCO to LAS, 1,955 flights

These figures cover 480 flights between September 2025 and August 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

Frontier against every carrier on MCO to LAS

Frontier flew 480 of the 1,955 flights on MCO to LAS, about 25% of it. Its 81.1% on time is about level with the route as a whole at 81.3%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from JetBlue at 90.2% to Delta at 66.7%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. JetBlue Airways arrives on time 90.2% of the time; Southwest Airlines manages 77.2%. Sample sizes sit next to every figure, because a two-point gap across 960 flights means less than a ten-point one.

On-time performance by carrier on MCO to LAS
AirlineFlightsOn timeAvg delayCancelledGrade
JetBlue Airways47090.2%67 min0.21%A+
Frontier Airlines (this page)48081.1%81 min1.46%B
Southwest Airlines96077.2%53 min0.00%B+
Spirit Airlinesthin sample4276.2%58 min0.00%B+
Delta Air Linesthin sample366.7%19 min0.00%C+

The spread between JetBlue and Southwest is 13 points, wide enough that it should decide the booking. On a hundred trips that is 13 more arrivals inside the on-time window.

Flight by flight

Frontier flight numbers on MCO to LAS

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When Frontier runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 27 points, against 13 points between the best and worst carrier.

  • 5am–8am105 flights91.3%
  • 8am–11am174 flights89.5%
  • 11am–2pm22 flights—
  • 2pm–5pm3 flights—
  • 5pm–8pm115 flights64.9%
  • 8pm–5am61 flights63.9%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is where this operation falls apart: 63.9% on time, against 91.3% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 174 flights scheduled in it.

Across the year

Frontier on MCO to LAS through the year

On-time rate by calendar month—J—F81M63A85M83J70J66A94S94O90N94D
Darker means more delays. Figures are on-time percentages.October best, April worst

October is the best month on the calendar at 94.1% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. August was the busiest month here, with 62 flights.

Across the week, Wednesday is the strongest day at 89.4% on time and Monday the weakest at 73.5%, a spread of 16 points.

On-time rate by day of the week73.5Mon86.2Tue89.4Wed85.1Thu76.8Fri81.2Sat76.5Sun
Monday: 73.5 percent on time. Tuesday: 86.2 percent on time. Wednesday: 89.4 percent on time. Thursday: 85.1 percent on time. Friday: 76.8 percent on time. Saturday: 81.2 percent on time. Sunday: 76.5 percent on time

Arrival by arrival

How late Frontier on MCO to LAS runs when it is late

Frontier on MCO to LAS often beats the schedule: 240 of 472 completed flights, 51%, arrived 15 minutes or more early. The 89 late arrivals split 24 under half an hour, 28 between 30 and 60 minutes, and 37 an hour or more.

  • 15+ min early240 flights50.8%
  • Within 15 min143 flights30.3%
  • 15–29 min late24 flights5.1%
  • 30–59 min late28 flights5.9%
  • 1–2 hours late23 flights4.9%
  • 2+ hours late14 flights3.0%

Scale runs 0% to 100%.

Share of 472 completed flights by arrival against schedule.

29 of 114 late departures made up the time and arrived on time, 25% of them. Only 4 left on time and still arrived late.

The worst days

Worst days for Frontier on MCO to LAS

The latest arrival of the period was on 17 July 2026, 15 hours 21 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across July, August, March and June, with no single month standing out.

The latest arrivals of Frontier on MCO to LAS in the period
DateArrived late byLargest filed cause
17 July 202615 hours 21 minutesLate-arriving aircraft
21 August 202610 hours 3 minutesExtreme weather
15 March 20264 hours 4 minutesNational Airspace System
26 August 20263 hours 19 minutesCarrier
27 June 20263 hours 2 minutesExtreme weather

Delay causes

Why Frontier runs late on this route

Late-arriving aircraft accounts for 46% of the 7,233 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    46%
  • Carrier
    28%
  • Extreme weather
    13%
  • National Airspace System
    12%

Extreme weather accounts for 13% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 7,233 reported delay minutes.

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,233 reported delay minutes here, that single category outweighs weather by 3 to one.

Cancellations sit at 1.46% against a national 1.89%, which is ordinary. Diversions add another 0.21%.

Connections and stage length

What a delay here costs

7.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

At 2,039 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg is a different operation and performs like one: it runs 67.4% on time across 478 flights, 14 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 14 points of difference.

One caution: this is a thin sample. 480 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking Frontier on MCO to LAS

Put together: treat all of this as provisional. 480 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 81.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 472 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.