Route profile
FLL→BWI
Flight reliability, delays and best times to fly from Fort Lauderdale to Baltimore, 925 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 25% of comparable major US routes (4,598 compared)
Calculated from 11,051 flights. How this is calculated
FLL → BWI arrives on time 74.2% of the time; the return trip, BWI → FLL, arrives on time 75.0% of the time.
FLL → BWI spends 22.5 minutes on the ground on a 925-mile trip: 16.4 minutes from pushback to wheels-up at FLL and 6.1 minutes from touchdown to gate at BWI.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Which day you fly matters unusually much here, a wider weekday spread than 91% of 4,467 comparable routes.
80.3% on time on a typical Wednesday, against 66.4% on a Sunday.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,467 in the comparison.
Why FLL → BWI flights are cancelled
July 2023 – July 2026
FLL → BWI cancelled 220 of 11,051 scheduled flights — about 1 in every 50. The reason filed most often was extreme weather, 51.8% of the cancellations coded on this route — about 1 in every 97 scheduled flights.
Share of cancellations
Of 220 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
114 cancellations, 51.8% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
61 cancellations, 27.7% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
45 cancellations, 20.5% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
220 coded cancellations were recorded on FLL → BWI; the section appears from 50.
When it goes wrong
July 2023 – July 2026
51 min late
against a median of 3 min early
Percentiles over 11,051 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at BWI after arriving from FLL.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 43% | Likely to miss |
| 45 min | 25% | High risk |
| 60 min | 16% | High risk |
| 90 min | 8.3% | Some risk |
| 120 min | 5.0% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.99% of the time and diverts 0.20% of the time, which a late arrival never shows up in.
Chance of missing is the share of 10,809 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 51 minutes late (90th-percentile gate arrival delay), over 11,051 operations.
Any other layover length: connection checker.
Best time to fly
FLL → BWI flights departing 5–9 AM arrived on time 90.9% of the time, against 62.1% for 3–6 PM departures, a gap of 28.8 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 93.0% on time from 391 flights
- 6 AM: 91.9% on time from 944 flights
- 7 AM: 90.5% on time from 814 flights
- 8 AM: 89.0% on time from 788 flights
- 9 AM: 85.4% on time from 593 flights
- 10 AM: 83.2% on time from 618 flights
- 11 AM: 83.1% on time from 359 flights
- 12 PM: 75.7% on time from 587 flights
- 1 PM: 69.1% on time from 487 flights
- 2 PM: 66.3% on time from 441 flights
- 3 PM: 66.7% on time from 493 flights
- 4 PM: 60.5% on time from 689 flights
- 5 PM: 60.2% on time from 704 flights
- 6 PM: 60.4% on time from 613 flights
- 7 PM: 57.7% on time from 619 flights
- 8 PM: 68.1% on time from 790 flights
- 9 PM: 60.6% on time from 934 flights
- 10 PM: 69.2% on time from 187 flights
- 11 PM: too few flights to score
Why FLL → BWI runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for FLL → BWI. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on FLL → BWI, at 41.8%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 90.9% of the time and 3–6 PM departures 62.1%.
How this route holds up in bad weather
July 2023 – July 2026
The harder-hit end is BWI, where the flight lands. Its figure counts departures from BWI, so it says more about how that airport copes than about this route. Bad weather cancels 4.8 times the normal rate at BWI against 2.1 times at FLL. Cancelled in bad weather against normal hours: FLL 3.3% against 1.6%, BWI 4.7% against 1.0%. Flights that did leave FLL in bad weather arrived on time 54.6% of the time, against 73.3% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | FLL | BWI |
|---|---|---|
| Cancelled in bad weather | 3.3% | 4.7% |
| Cancelled in normal hours | 1.6% | 1.0% |
| Arrived on time, bad weather | 54.6% | 65.5% |
| Arrived on time, normal hours | 73.3% | 77.5% |
| Departures in bad weather | 13,418 | 30,451 |
Of the carriers on this route, Southwest Airlines (2.1% cancelled against 3.6% for the other carriers at FLL) cancelled the fewest departures from FLL in bad weather and Spirit Airlines (5.3% cancelled against 2.7% for the other carriers at FLL) the most.
This route’s airlines in bad weather at FLL
All departures from FLL| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| Southwest Airlines | 1,998 | 2.1%below the others | 3.6% |
| Spirit Airlines | 3,199 | 5.3%above the others | 2.7% |
These are airport figures, not route figures: every scheduled departure from FLL and BWI, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from FLL on every route.
Weather source and limits. In full: FLL (airlines), BWI, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 7,655 | 76.2% | 1.82% | -4 min | 7.4% |
| Spirit Airlines | 3,160 | 70.2% | 2.18% | -2 min | 10.5% |
Southwest Airlines flew 70.8% of the 10,815 flights listed.
Southwest Airlines arrived on time 6.0 percentage points more often than Spirit Airlines on this route.
Other ways to fly Miami to Washington
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| MIA→DCA Miami to Washington | 11,974 | 74.5% | 1.97% | -5 min | 55 |
| FLL→BWI this route Fort Lauderdale to Baltimore | 11,051 | 74.2% | 1.99% | -3 min | 56 |
Flying to BWI from the Miami area? Compare FLL, MIA for BWI, with the same test for what counts as a real difference.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 13.9 percentage points.
By month
- Jan: 73.6%
- Feb: 77.6%
- Mar: 70.1%
- Apr: 77.0%
- May: 71.8%
- Jun: 71.9%
- Jul: 63.5%
- Aug: 69.1%
- Sep: 79.9%
- Oct: 83.7%
- Nov: 84.5%
- Dec: 71.5%
July is historically the weakest month and November the strongest, a spread of 21.0 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 63.0% from 361 flights
- August 2023: 67.7% from 352 flights
- September 2023: 76.1% from 290 flights
- October 2023: 83.7% from 341 flights
- November 2023: 81.9% from 348 flights
- December 2023: 74.1% from 362 flights
- January 2024: 66.4% from 342 flights
- February 2024: 73.3% from 320 flights
- March 2024: 69.1% from 362 flights
- April 2024: 76.8% from 341 flights
- May 2024: 69.6% from 343 flights
- June 2024: 75.5% from 347 flights
- July 2024: 66.9% from 351 flights
- August 2024: 63.8% from 314 flights
- September 2024: 77.3% from 287 flights
- October 2024: 84.7% from 298 flights
- November 2024: 87.4% from 288 flights
- December 2024: 76.9% from 291 flights
- January 2025: 83.2% from 326 flights
- February 2025: 85.5% from 280 flights
- March 2025: 80.7% from 307 flights
- April 2025: 84.4% from 317 flights
- May 2025: 75.8% from 277 flights
- June 2025: 66.1% from 242 flights
- July 2025: 67.2% from 246 flights
- August 2025: 77.8% from 245 flights
- September 2025: 87.7% from 236 flights
- October 2025: 82.6% from 265 flights
- November 2025: 84.7% from 263 flights
- December 2025: 62.4% from 281 flights
- January 2026: 71.6% from 293 flights
- February 2026: 74.4% from 278 flights
- March 2026: 60.1% from 307 flights
- April 2026: 68.8% from 285 flights
- May 2026: 70.1% from 215 flights
- June 2026: 73.1% from 187 flights
- July 2026: 56.0% from 263 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 72.1% against 78.1% in the 12 months before — declining by 6.0 percentage points.
Data and methodology
Calculated by FlyerIntel from 11,051 FLL → BWI flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed