Airport month record
RSWAUG
Southwest Florida International in August 2025
- Departures
- 2,060
- Month
- August 2025
- National, same month
- 77.4%
- Carriers
- 7
Historical statistics for August 2025, not live status or a forecast for this year’s August. For today’s conditions at RSW, see live FAA status.
RSW in August lands a B, 3 points better than the national rate of 77.4%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 2,060 flights, of which Delta Air Lines flew 504 at 86.5% on time.
Key figures
On time
80.8%
Arrivals under 15 minutes late, of 2,028 completed departures
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
1.12%
Nationally in August: 1.08%
Whole year
78.1%
RSW across all twelve months
These figures cover 2,060 departures from Southwest Florida International in August 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
August next to RSW's other months
Against RSW's own year, August ran 3 points better than the twelve-month rate of 78.1%, which makes it number six of twelve months, best first. Either side of it, July ran 73.1% on time and September 88.2%, so this month sits in line with its neighbours.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 2,315 | 73.1% | 81 min | 2.46% | C |
| August 2025 (this page) | 2,060 | 80.8% | 78 min | 1.12% | B |
| September 2025 | 1,847 | 88.2% | 90 min | 0.16% | A+ |
| October 2025 | 2,369 | 81.2% | 74 min | 0.59% | B+ |
| November 2025 | 2,991 | 81.7% | 95 min | 1.37% | B |
| December 2025 | 3,480 | 74.2% | 86 min | 1.93% | C |
| January 2026 | 3,454 | 78.6% | 80 min | 4.11% | B− |
| February 2026 | 3,551 | 73.8% | 70 min | 2.87% | C |
| March 2026 | 4,504 | 71.2% | 86 min | 3.22% | C− |
| April 2026 | 3,632 | 81.0% | 80 min | 0.69% | B+ |
| May 2026 | 2,802 | 82.5% | 81 min | 0.54% | B+ |
| June 2026 | 2,087 | 79.6% | 77 min | 0.91% | B+ |
Departure window
The best time of day to leave RSW in August
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against 5 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am363 flights93.6%
- 8am–11am265 flights92.7%
- 11am–2pm578 flights80.9%
- 2pm–5pm404 flights70.0%
- 5pm–8pm374 flights71.7%
- 8pm–5am76 flights77.6%
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 93.6% of the time, against 70.0% for the afternoon window. That is 24 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 578 flights scheduled in it.
Across the week, Tuesday is the strongest day at 90.7% on time and Sunday the weakest at 74.1%. 17 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at RSW in August
The two carriers here are closely matched: 5 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 504 | 86.5% | 71 min | 1.59% | A |
| Southwest Airlines | 440 | 81.4% | 63 min | 0.91% | B+ |
| American Airlinesthin sample | 361 | 74.1% | 79 min | 2.49% | C |
| United Airlinesthin sample | 311 | 78.6% | 84 min | 0.32% | B+ |
| JetBlue Airwaysthin sample | 269 | 80.5% | 112 min | 0.37% | B+ |
| Spirit Airlinesthin sample | 94 | 85.1% | 53 min | 0.00% | A+ |
| Frontier Airlinesthin sample | 76 | 76.0% | 81 min | 0.00% | B+ |
No carrier stands out. Delta tops the table at 86.5%, 5 points clear of the bottom, which is inside the range this kind of sample moves year to year.
Route by route
Busiest routes out of RSW in August
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| RSW to ATL · Atlantathin sample | 223 | 91.3% | 73 min | 1.79% | A |
| RSW to ORD · Chicagothin sample | 179 | 81.2% | 59 min | 0.00% | B+ |
| RSW to EWR · Newarkthin sample | 124 | 75.4% | 89 min | 0.81% | B+ |
| RSW to CLT · Charlottethin sample | 119 | 80.0% | 95 min | 2.52% | B |
| RSW to BOS · Bostonthin sample | 119 | 85.6% | 71 min | 0.84% | A+ |
| RSW to BWI · Baltimorethin sample | 93 | 80.4% | 64 min | 1.08% | B |
| RSW to JFK · New Yorkthin sample | 93 | 73.6% | 104 min | 1.08% | C |
| RSW to DTW · Detroitthin sample | 92 | 74.7% | 74 min | 1.09% | C |
| RSW to DFW · Dallas-Fort Worththin sample | 86 | 67.9% | 88 min | 5.81% | C− |
| RSW to PHL · Philadelphiathin sample | 80 | 78.5% | 56 min | 1.25% | B |
| RSW to MDW · Chicagothin sample | 72 | 84.1% | 60 min | 2.78% | B |
| RSW to MSP · Minneapolisthin sample | 69 | 89.9% | 37 min | 0.00% | A+ |
| RSW to STL · St. Louisthin sample | 65 | 86.2% | 79 min | 0.00% | A+ |
| RSW to HPN · White Plainsthin sample | 62 | 91.9% | 67 min | 0.00% | A+ |
| RSW to LGA · New Yorkthin sample | 60 | 79.7% | 67 min | 1.67% | B |
| RSW to MCO · Orlandothin sample | 54 | 73.6% | 53 min | 1.85% | C |
| RSW to CLE · Clevelandthin sample | 53 | 84.9% | 116 min | 0.00% | B+ |
| RSW to IAH · Houstonthin sample | 50 | 74.0% | 124 min | 0.00% | C+ |
| RSW to CVG · Cincinnatithin sample | 48 | 82.6% | 67 min | 2.08% | B |
| RSW to BNA · Nashvillethin sample | 36 | 80.6% | 77 min | 0.00% | B+ |
| RSW to ACY · Atlantic Citythin sample | 36 | 86.1% | 47 min | 0.00% | A+ |
| RSW to DCA · Washingtonthin sample | 36 | 61.1% | 82 min | 0.00% | D+ |
| RSW to DEN · Denverthin sample | 35 | 64.7% | 54 min | 0.00% | D+ |
| RSW to IND · Indianapolisthin sample | 33 | 81.8% | 47 min | 0.00% | B+ |
| RSW to PIT · Pittsburghthin sample | 32 | 84.4% | 62 min | 0.00% | B+ |
Delay causes
What held RSW up in August
One category carries most of the weight here. Late-arriving aircraft accounts for 42% of the 31,000 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.
- 42%Late-arriving aircraft
- 27%National Airspace System
- 25%Carrier
- 5%Extreme weather
- 0%Security
42% 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 31,000 reported delay minutes here, that single category outweighs weather by 8 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 30,557 reported delay minutes.
Cancellations sit at 1.12% against a national 1.08%, which is ordinary. Diversions add another 0.44%.
7.1% of arrivals land an hour or more late, close to the national 8.2%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
What to do with this
Flying from RSW in August
For a August trip through RSW: expect 80.8% on time and 1.12% cancelled, going by August 2025. The 5am–8am window was the strongest part of the day.
Related
Where to go next
- Southwest Florida International (RSW), the whole year
- RSW in July73.1%
- RSW in September88.2%
- RSW in October81.2%
- RSW in November81.7%
- RSW in December74.2%
- RSW in January78.6%
- RSW in February73.8%
- RSW in March71.2%
- RSW in April81.0%
- RSW in May82.5%
- RSW in June79.6%
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.