Carrier route record
F9BWI→CLT
Frontier Airlines · Baltimore to Charlotte
- Flights
- 140
- Period
- July 2025 to June 2026
- Share of route
- 5%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on BWI to CLT 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 close to two hours behind schedule. That rests on 140 flights. The strongest carrier on the route with a full sample, American Airlines, flew 1,809 at 84.7% on time.
The national on-time rate over the same period is 77.6%, so Frontier on BWI to CLT runs 8 points behind the country as a whole. Across a thousand flights that is about 84 extra late arrivals.
Key figures
On time
69.2%
Arrivals under 15 minutes late, of 133 completed flights
Avg delay
112 min
Across delayed arrivals only, not all flights
Cancelled
5.00%
National rate is 1.81%
Whole route
81.0%
Every carrier on BWI to CLT, 2,998 flights
These figures cover 140 flights between July 2025 and June 2026. Beyond the headline rate, 17.3% 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 BWI to CLT
Frontier flew 140 of the 2,998 flights on BWI to CLT, about 5% of it. Its 69.2% on time is 12 points worse than the route as a whole, which runs 81.0%. Ranked by on-time rate it is number five of six carriers on the route, where the range runs from Envoy at 100.0% to PSA at 68.4%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. American Airlines arrives on time 84.7% of the time; Southwest Airlines manages 76.7%. Sample sizes sit next to every figure, because a two-point gap across 967 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 1 | 100.0% | — | 0.00% | A+ |
| American Airlines | 1,809 | 84.7% | 114 min | 1.88% | B |
| Southwest Airlines | 967 | 76.7% | 59 min | 1.55% | B |
| Spirit Airlinesthin sample | 24 | 73.9% | 60 min | 4.17% | C− |
| Frontier Airlines (this page)thin sample | 140 | 69.2% | 112 min | 5.00% | C− |
| PSA Airlinesthin sample | 57 | 68.4% | 69 min | 0.00% | C+ |
American leads Southwest by 8 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.
Departure window
When Frontier runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 140 flights.
- 5am–8am—
- 8am–11am15 flights—
- 11am–2pm26 flights—
- 2pm–5pm52 flights52.1%
- 5pm–8pm31 flights58.1%
- 8pm–5am16 flights—
Scale runs 45% to 65%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 58.1% on time. The full set of windows spans 6 points.
Across the year
Frontier on BWI to CLT through the year
- Jul–Sep 202546 flights50.0%
- Oct–Dec 202526 flights—
- Jan–Mar 202618 flights—
- Apr–Jun 202650 flights70.8%
Scale runs 40% to 75%. 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 69.2% on time across 140 flights.
Split by quarter, Frontier on BWI to CLT logged 46 flights in Jul–Sep 2025, 26 flights in Oct–Dec 2025, 18 flights in Jan–Mar 2026 and 50 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 69.2% annual figure is the one to use.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 71% of the 4,587 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.
- 71%Late-arriving aircraft
- 16%National Airspace System
- 12%Carrier
- 1%Extreme weather
71% 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 4,587 reported delay minutes here, that single category outweighs weather by 52 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 4,587 reported delay minutes.
Cancellations run at 5.00%, against 1.81% nationally. That is about one flight in twenty 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. 17.3% 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.
At 361 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5pm–8pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 76.5% on time across 139 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 140 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 CLT
Put together: the delay figures matter less here than the 5.00% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 133 completed flights over 12 months sit behind that.
Related
Where to go next
- BWI to CLT, every carrier
- Frontier on CLT to BWI, the return leg
- American Airlines on BWI to CLT84.7%
- Southwest Airlines on BWI to CLT76.7%
- Frontier Airlines network-wide record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Charlotte Douglas International (CLT) 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.