Carrier route record

F9DFW→BWI

Frontier Airlines · Dallas-Fort Worth to Baltimore

Flights: 286
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 DFW to BWI sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 286 flights, with a median arrival 6 minutes early.

The national on-time rate over the same period is 77.3%, so Frontier on DFW to BWI runs 4 points behind the country as a whole. Across a thousand flights that is about 43 extra late arrivals.

On time

73.0%

Arrivals under 15 minutes late, of 278 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

2.10%

National rate is 1.89%

Whole route

69.9%

Every carrier on DFW to BWI, 1,325 flights

These figures cover 286 flights between September 2025 and August 2026. Beyond the headline rate, 12.2% 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 DFW to BWI

Frontier flew 286 of the 1,325 flights on DFW to BWI, about 22% of it. Its 73.0% on time is 3 points better than the route as a whole, which runs 69.9%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 100.0% to American at 68.2%. 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 DFW to BWI
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	3	100.0%	—	0.00%	A+
Spirit Airlinesthin sample	68	77.9%	56 min	0.00%	B+
Frontier Airlines (this page)thin sample	286	73.0%	72 min	2.10%	C
American Airlines	968	68.2%	65 min	2.79%	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 33 points, against half a point between the best and worst carrier.

5am–8am78 flights89.3%
8am–11am71 flights81.4%
11am–2pm81 flights62.0%
2pm–5pm55 flights56.6%
5pm–8pm1 flights—
8pm–5am—

Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 89.3% of the time, against 56.6% for the afternoon window. That is 33 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 81 flights scheduled in it.

Across the year

Frontier on DFW to BWI through the year

Jul–Sep 202521 flights—
Oct–Dec 202565 flights75.0%
Jan–Mar 202648 flights77.8%
Apr–Jun 202690 flights73.0%
Jul–Sep 202662 flights73.3%

Scale runs 65% to 85%. 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 73.0% on time across 286 flights.

Quarter by quarter Frontier on DFW to BWI held fairly steady: 75.0% in Oct–Dec 2025, 77.8% in Jan–Mar 2026, 73.0% in Apr–Jun 2026 and 73.3% in Jul–Sep 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Saturday is the strongest day at 84.6% on time and Friday the weakest at 67.3%, a spread of 17 points.

Arrival by arrival

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

Frontier on DFW to BWI often beats the schedule: 88 of 278 completed flights, 32%, arrived 15 minutes or more early. The 75 late arrivals split 19 under half an hour, 22 between 30 and 60 minutes, and 34 an hour or more.

15+ min early88 flights31.7%
Within 15 min115 flights41.4%
15–29 min late19 flights6.8%
30–59 min late22 flights7.9%
1–2 hours late21 flights7.6%
2+ hours late13 flights4.7%

Scale runs 0% to 100%.

Share of 278 completed flights by arrival against schedule.

15 of 73 late departures made up the time and arrived on time, 21% of them. In the other direction, 17 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 BWI.

The worst days

Worst days for Frontier on DFW to BWI

The latest arrival of the period was on 15 December 2025, 4 hours 12 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of Frontier on DFW to BWI in the period
Date	Arrived late by	Largest filed cause
15 December 2025	4 hours 12 minutes	Late-arriving aircraft
11 August 2026	3 hours 57 minutes	Late-arriving aircraft
19 June 2026	3 hours 28 minutes	Extreme weather
14 August 2026	3 hours 16 minutes	Late-arriving aircraft
3 January 2026	2 hours 59 minutes	Late-arriving aircraft

Delay causes

Why Frontier runs late on this route

Late-arriving aircraft accounts for 52% of the 5,397 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
52%
Carrier
22%
National Airspace System
21%
Extreme weather
5%

52% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,397 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 5,397 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 89.3% on time here.

Cancellations sit at 2.10% against a national 1.89%, which is ordinary. Diversions add another 0.70%.

Connections and stage length

What a delay here costs

12.2% 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 68.3% on time across 287 flights, 5 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 5 points of difference.

One caution: this is a thin sample. 286 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 DFW to BWI

Put together: treat all of this as provisional. 286 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 73.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 278 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