Route profile
AUS→FLL
Flight reliability, delays and best times to fly from Austin to Fort Lauderdale, 1,105 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 13% of comparable major US routes (4,598 compared)
Calculated from 3,284 flights. How this is calculated · What counts as on time
AUS → FLL arrives on time 69.4% of the time; the return trip, FLL → AUS, arrives on time 65.2% of the time, a 4.2-point gap between the two directions of the same city pair.
AUS → FLL spends 22.8 minutes on the ground on a 1,105-mile trip: 15.1 minutes from pushback to wheels-up at AUS and 7.6 minutes from touchdown to gate at FLL.
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 97% of 4,467 comparable routes.
79.2% on time on a typical Tuesday, against 62.6% 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.
What sets this route apart
Where AUS to FLL differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
AUS to FLL struggles most at 4 PM: 45.2% of its flights scheduled then arrive on time, 22.9 points behind the 68.1% on routes of similar length at the same hour. Against all other routes the gap is 25.5 points.
Friday is the day AUS to FLL slips furthest against routes of similar length, 64.1% on time where they average 75.4%, 11.3 points lower. Against all other routes the gap is 12.1 points.
In March, AUS to FLL runs 19.4 points below routes of similar length, 55.8% on time to 75.2%. Against all other routes the gap is 22.1 points.
Spirit Airlines’ flights on AUS to FLL arrive on time 67.4% of the time, 6.3 points below the 73.7% it manages on its routes of similar length. Against all other routes the gap is 7.9 points.
AUS to FLL against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 4 PM departures | 45.2% | routes of similar length | 68.1% | −22.9 pts | 219 here, 150,917 there |
| Weekday: Friday | 64.1% | routes of similar length | 75.4% | −11.3 pts | 485 here, 401,524 there |
| Month: March | 55.8% | routes of similar length | 75.2% | −19.4 pts | 335 here, 239,728 there |
| Airline: Spirit Airlines | 67.4% | routes of similar length | 73.7% | −6.3 pts | 1,068 here, 180,883 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,105 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
62 min late
against a median of 0 min early
AUS → FLL has an average that understates its risk: a typical arrival is 0 min early, but the worst tenth are 62 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 3,284 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at FLL after arriving from AUS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 49% | Likely to miss |
| 45 min | 30% | High risk |
| 60 min | 20% | High risk |
| 90 min | 10% | Some risk |
| 120 min | 6.5% | Some 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 1.40% of the time and diverts 0.40% of the time, which a late arrival never shows up in.
Chance of missing is the share of 3,225 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 62 minutes late (90th-percentile gate arrival delay), over 3,284 operations.
Any other layover length: connection checker.
Best time to fly
AUS → FLL flights departing 5–9 AM arrived on time 84.3% of the time, against 55.5% for 3–6 PM departures, a gap of 28.8 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 86.9% on time from 614 flights
- 7 AM: 76.9% on time from 262 flights
- 8 AM to 9 AM: too few flights to score
- 10 AM: 80.6% on time from 126 flights
- 11 AM: 76.3% on time from 195 flights
- 12 PM: too few flights to score
- 1 PM: 70.1% on time from 318 flights
- 2 PM: 57.1% on time from 143 flights
- 3 PM: 49.3% on time from 280 flights
- 4 PM: 45.2% on time from 225 flights
- 5 PM: 68.8% on time from 302 flights
- 6 PM: 59.1% on time from 210 flights
- 7 PM: 51.2% on time from 205 flights
- 8 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why AUS → FLL 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 AUS → FLL. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on AUS → FLL, at 46.4%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 84.3% of the time and 3–6 PM departures 55.5%.
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 | 1,416 | 72.0% | 0.42% | 0 min | 6.9% |
| Spirit Airlines | 1,103 | 67.4% | 2.99% | 0 min | 13.4% |
| JetBlue | 764 | 67.2% | 0.92% | 0 min | 12.9% |
Southwest Airlines flew 43.1% of the 3,283 flights listed. Spirit Airlines cancelled 2.99% of its flights here against 0.42% for Southwest Airlines.
Southwest Airlines arrived on time 4.8 percentage points more often than JetBlue on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 16.6 percentage points.
By month
- Jan: 75.9%
- Feb: 75.5%
- Mar: 55.8%
- Apr: 66.7%
- May: 66.4%
- Jun: 67.6%
- Jul: 68.3%
- Aug: 70.2%
- Sep: 74.5%
- Oct: 72.8%
- Nov: 72.6%
- Dec: 69.2%
March is historically the weakest month and January the strongest, a spread of 20.1 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 71.1% from 122 flights
- August 2023: 68.3% from 124 flights
- September 2023: too few flights to score (116)
- October 2023: 73.9% from 120 flights
- November 2023: too few flights to score (115)
- December 2023: 69.4% from 121 flights
- January 2024: 69.0% from 126 flights
- February 2024: 80.0% from 120 flights
- March 2024: 53.8% from 135 flights
- April 2024: too few flights to score (99)
- May 2024: too few flights to score (62)
- June 2024: too few flights to score (64)
- July 2024: too few flights to score (66)
- August 2024: too few flights to score (54)
- September 2024: too few flights to score (51)
- October 2024: too few flights to score (72)
- November 2024: too few flights to score (70)
- December 2024: too few flights to score (61)
- January 2025: too few flights to score (54)
- February 2025: too few flights to score (51)
- March 2025: too few flights to score (67)
- April 2025: too few flights to score (57)
- May 2025: too few flights to score (61)
- June 2025: too few flights to score (64)
- July 2025: too few flights to score (65)
- August 2025: too few flights to score (54)
- September 2025: too few flights to score (51)
- October 2025: too few flights to score (77)
- November 2025: too few flights to score (82)
- December 2025: 65.8% from 121 flights
- January 2026: too few flights to score (119)
- February 2026: too few flights to score (110)
- March 2026: 47.1% from 149 flights
- April 2026: too few flights to score (118)
- May 2026: too few flights to score (88)
- June 2026: too few flights to score (82)
- July 2026: too few flights to score (116)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 67.2% against 71.1% in the 12 months before — declining by 3.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 3,284 AUS → FLL 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