Carrier route record
F9BWI→DFW
Frontier Airlines · Baltimore to Dallas-Fort Worth
- Flights
- 268
- Period
- July 2025 to June 2026
- Share of route
- 20%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on BWI to DFW draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 268 flights, with a median arrival 3 minutes late.
The national on-time rate over the same period is 77.6%, so Frontier on BWI to DFW runs 13 points behind the country as a whole. Across a thousand flights that is about 128 extra late arrivals.
Key figures
On time
64.8%
Arrivals under 15 minutes late, of 261 completed flights
Avg delay
104 min
Across delayed arrivals only, not all flights
Cancelled
2.61%
National rate is 1.81%
Whole route
72.0%
Every carrier on BWI to DFW, 1,335 flights
These figures cover 268 flights between July 2025 and June 2026. Beyond the headline rate, 17.2% 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 DFW
Frontier flew 268 of the 1,335 flights on BWI to DFW, about 20% of it. Its 64.8% on time is 7 points worse than the route as a whole, which runs 72.0%. 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 64.8%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 3 | 100.0% | — | 0.00% | A+ |
| Spirit Airlinesthin sample | 126 | 84.8% | 86 min | 0.00% | B+ |
| American Airlines | 938 | 72.2% | 99 min | 3.52% | C− |
| Frontier Airlines (this page)thin sample | 268 | 64.8% | 104 min | 2.61% | D |
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 21 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am3 flights—
- 11am–2pm77 flights77.0%
- 2pm–5pm43 flights65.1%
- 5pm–8pm64 flights56.2%
- 8pm–5am81 flights58.4%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 56.2% on time, against 77.0% 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 8pm–5am window is the busiest, with 81 flights scheduled in it.
Across the year
Frontier on BWI to DFW through the year
- Jul–Sep 202564 flights59.0%
- Oct–Dec 202565 flights69.2%
- Jan–Mar 202648 flights73.3%
- Apr–Jun 202691 flights61.1%
Scale runs 50% 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 64.8% on time across 268 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 Jul–Sep 2025 at 59.0%, a swing of 14 points on roughly 67 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 72.7% on time and Saturday the weakest at 59.0%. 14 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 9,606 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.
- 48%Late-arriving aircraft
- 32%Carrier
- 18%National Airspace System
- 1%Extreme weather
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 9,606 reported delay minutes here, that single category outweighs weather by 46 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 9,606 reported delay minutes.
Cancellations run at 2.61%, 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. 17.2% 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 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. 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 69.1% on time across 267 flights, 4 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 4 points of difference.
One caution: this is a thin sample. 268 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. 268 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 64.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 261 completed flights over 12 months sit behind that.
Related
Where to go next
- BWI to DFW, every carrier
- Frontier on DFW to BWI, the return leg
- Spirit Airlines on BWI to DFW84.8%
- American Airlines on BWI to DFW72.2%
- Frontier Airlines network-wide record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Dallas/Fort Worth International (DFW) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.