Carrier route record

F9BWI→MCO

Frontier Airlines · Baltimore to Orlando

Flights: 539
Period: July 2025 to June 2026
Share of route: 11%
Carriers: 3

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

Frontier on BWI to MCO sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 5 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 539 flights. The strongest carrier on the route with a full sample, Southwest Airlines, flew 3,581 at 76.9% on time.

The national on-time rate over the same period is 77.6%, so Frontier on BWI to MCO runs 5 points behind the country as a whole. Across a thousand flights that is about 45 extra late arrivals.

On time

73.1%

Arrivals under 15 minutes late, of 524 completed flights

Avg delay

93 min

Across delayed arrivals only, not all flights

Cancelled

2.60%

National rate is 1.81%

Whole route

75.6%

Every carrier on BWI to MCO, 4,713 flights

These figures cover 539 flights between July 2025 and June 2026. Beyond the headline rate, 12.2% 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 BWI to MCO

Frontier flew 539 of the 4,713 flights on BWI to MCO, about 11% of it. Its 73.1% on time is 3 points worse than the route as a whole, which runs 75.6%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Southwest at 76.9% to Spirit at 70.2%.

The choice of carrier is not cosmetic here. Southwest Airlines arrives on time 76.9% of the time; Spirit Airlines manages 70.2%. Sample sizes sit next to every figure, because a two-point gap across 593 flights means less than a ten-point one.

On-time performance by carrier on BWI to MCO
Airline	Flights	On time	Avg delay	Cancelled	Grade
Southwest Airlines	3,581	76.9%	64 min	1.98%	B
Frontier Airlines (this page)	539	73.1%	93 min	2.60%	C
Spirit Airlines	593	70.2%	74 min	3.04%	C−

Spirit Airlines cancels 3.0% 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 22 points, against 7 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am16 flights—
8am–11am130 flights77.5%
11am–2pm79 flights73.4%
2pm–5pm147 flights79.0%
5pm–8pm57 flights57.4%
8pm–5am110 flights65.4%

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

The 5pm–8pm window is where this operation falls apart: 57.4% on time, against 79.0% for the 2pm–5pm 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 2pm–5pm window is the busiest, with 147 flights scheduled in it.

Across the year

Frontier on BWI to MCO through the year

Darker means more delays. Figures are on-time percentages.May best, August worst

August is the worst month at 55.0% on time, 37 points below May, the best at 92.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. April was the busiest month here, with 64 flights.

Across the week, Wednesday is the strongest day at 86.3% on time and Sunday the weakest at 63.2%. 23 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Frontier runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 48% of the 13,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
48%
National Airspace System
40%
Carrier
12%
Extreme weather
1%

48% 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 13,000 reported delay minutes here, that single category outweighs weather by 48 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 13,129 reported delay minutes.

40% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 5,220 minutes out of 13,000, against a national NAS share of 21%.

Cancellations run at 2.60%, against 1.81% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

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. 12.2% 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 787 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 is a different operation and performs like one: it runs 76.5% on time across 538 flights, 3 points above 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 3 points of difference.

One caution: this is a thin sample. 539 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 BWI to MCO

Put together: treat all of this as provisional. 539 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 73.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 524 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