Carrier route record

F9BWI→DFW

Frontier Airlines · Baltimore to Dallas-Fort Worth

Flights: 287
Period: September 2025 to August 2026
Share of route: 22%
Carriers: 4

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

Frontier on BWI to DFW sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 287 flights, with a median arrival 4 minutes early.

The national on-time rate over the same period is 77.3%, so Frontier on BWI to DFW runs 9 points behind the country as a whole. Across a thousand flights that is about 90 extra late arrivals.

On time

68.3%

Arrivals under 15 minutes late, of 281 completed flights

Avg delay

100 min

Across delayed arrivals only, not all flights

Cancelled

1.74%

National rate is 1.89%

Whole route

73.1%

Every carrier on BWI to DFW, 1,326 flights

These figures cover 287 flights between September 2025 and August 2026. Beyond the headline rate, 14.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

Frontier against every carrier on BWI to DFW

Frontier flew 287 of the 1,326 flights on BWI to DFW, about 22% of it. Its 68.3% on time is 5 points worse than the route as a whole, which runs 73.1%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Envoy at 100.0% to Frontier at 68.3%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on BWI to DFW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	3	100.0%	—	0.00%	A+
Spirit Airlinesthin sample	68	83.6%	70 min	0.00%	B+
American Airlines	968	73.7%	109 min	3.00%	C
Frontier Airlines (this page)thin sample	287	68.3%	100 min	1.74%	C

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 22 points, against half a point between the best and worst carrier.

5am–8am—
8am–11am3 flights—
11am–2pm77 flights78.4%
2pm–5pm96 flights68.1%
5pm–8pm64 flights56.2%
8pm–5am47 flights67.4%

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

The 5pm–8pm window is where this operation falls apart: 56.2% on time, against 78.4% for the 11am–2pm 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 96 flights scheduled in it.

Across the year

Frontier on BWI to DFW through the year

Jul–Sep 202521 flights—
Oct–Dec 202565 flights69.2%
Jan–Mar 202648 flights73.3%
Apr–Jun 202691 flights61.1%
Jul–Sep 202662 flights73.3%

Scale runs 55% 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 68.3% on time across 287 flights.

Frontier on BWI to DFW did not run the same all year. Its best quarter was Jan–Mar 2026 at 73.3% on time and its weakest Apr–Jun 2026 at 61.1%, a swing of 12 points on roughly 72 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Sunday is the strongest day at 73.3% on time and Friday the weakest at 67.3%, a spread of 6 points.

Arrival by arrival

How late Frontier on BWI to DFW runs when it is late

Frontier on BWI to DFW often beats the schedule: 94 of 281 completed flights, 33%, arrived 15 minutes or more early. The 89 late arrivals split 21 under half an hour, 26 between 30 and 60 minutes, and 42 an hour or more.

15+ min early94 flights33.5%
Within 15 min98 flights34.9%
15–29 min late21 flights7.5%
30–59 min late26 flights9.3%
1–2 hours late23 flights8.2%
2+ hours late19 flights6.8%

Scale runs 0% to 100%.

Share of 281 completed flights by arrival against schedule.

22 of 93 late departures made up the time and arrived on time, 24% of them. In the other direction, 18 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DFW.

The worst days

Worst days for Frontier on BWI to DFW

The latest arrival of the period was on 29 December 2025, 18 hours 11 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of Frontier on BWI to DFW in the period
Date	Arrived late by	Largest filed cause
29 December 2025	18 hours 11 minutes	Carrier
6 November 2025	13 hours 32 minutes	Carrier
14 November 2025	11 hours 48 minutes	Carrier
1 September 2025	6 hours 2 minutes	Late-arriving aircraft
11 August 2026	3 hours 47 minutes	Late-arriving aircraft

Delay causes

Why Frontier runs late on this route

Late-arriving aircraft accounts for 46% of the 8,858 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
46%
Carrier
36%
National Airspace System
18%
Extreme weather
1%

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,858 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 8,858 reported delay minutes.

The largest share of delay minutes, 36%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,157 of the 8,858 delay minutes reported here.

Cancellations sit at 1.74% against a national 1.89%, which is ordinary. Diversions add another 0.35%.

Connections and stage length

What a delay here costs

14.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

The 1,217 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.

The return leg is a different operation and performs like one: it runs 73.0% on time across 286 flights, 5 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 5 points of difference.

One caution: this is a thin sample. 287 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 DFW

Put together: treat all of this as provisional. 287 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 68.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 281 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures