Carrier route record

F9ORD→MCO

Frontier Airlines · Chicago to Orlando

Flights: 365
Period: July 2025 to June 2026
Share of route: 6%
Carriers: 5

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

Frontier on ORD to MCO sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 365 flights. The strongest carrier on the route with a full sample, United Airlines, flew 2,459 at 78.7% on time.

United Airlines is the most reliable of the four carriers covered here at 78.7% on time across 2,459 flights.

On time

69.5%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

2.19%

National rate is 1.81%

Whole route

72.2%

Every carrier on ORD to MCO, 6,347 flights

These figures cover 365 flights between July 2025 and June 2026. Beyond the headline rate, 14.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Frontier against every carrier on ORD to MCO

Frontier flew 365 of the 6,347 flights on ORD to MCO, about 6% of it. Its 69.5% on time is 3 points worse than the route as a whole, which runs 72.2%. Ranked by on-time rate it is number four of five carriers on the route, where the range runs from United at 78.7% to American at 64.5%.

The choice of carrier is not cosmetic here. United Airlines arrives on time 78.7% of the time; American Airlines manages 64.5%. Sample sizes sit next to every figure, because a two-point gap across 2,140 flights means less than a ten-point one.

On-time performance by carrier on ORD to MCO
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlines	2,459	78.7%	70 min	0.61%	B+
Southwest Airlines	801	73.9%	66 min	1.12%	C
Spirit Airlines	582	71.6%	80 min	3.09%	C−
Frontier Airlines (this page)	365	69.5%	97 min	2.19%	C
American Airlines	2,140	64.5%	79 min	2.29%	D

Spirit Airlines cancels 3.1% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

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 18 points, against 14 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am24 flights—
8am–11am99 flights78.4%
11am–2pm42 flights69.0%
2pm–5pm78 flights60.5%
5pm–8pm90 flights62.1%
8pm–5am32 flights75.0%

Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 78.4% of the time, against 60.5% for the afternoon window. That is 18 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 99 flights scheduled in it.

Across the year

Frontier on ORD to MCO through the year

Jul–Sep 202575 flights67.6%
Oct–Dec 202585 flights74.7%
Jan–Mar 2026108 flights67.0%
Apr–Jun 202697 flights69.1%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 69.5% on time across 365 flights.

Quarter by quarter Frontier on ORD to MCO held fairly steady: 67.6% in Jul–Sep 2025, 74.7% in Oct–Dec 2025, 67.0% in Jan–Mar 2026 and 69.1% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Tuesday is the strongest day at 80.0% on time and Sunday the weakest at 57.9%. 22 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Frontier runs late on this route

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 11,000 reported delay minutes.

Late-arriving aircraft
42%
Carrier
38%
National Airspace System
19%
Extreme weather
2%

42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 11,000 reported delay minutes here, that single category outweighs weather by 23 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 10,534 reported delay minutes.

The largest share of delay minutes, 38%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,001 of the 11,000 delay minutes reported here.

Cancellations sit at 2.19% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 1,005 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 72.0% on time across 366 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 365 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 ORD to MCO

Put together: treat all of this as provisional. 365 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 69.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 357 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures