RSW to BUF flight delays & on-time performance
Nonstop flights from Southwest Florida International Airport to Buffalo Niagara International Airport · 1,144 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at RSW or BUF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Fort Myers (RSW) to Buffalo (BUF) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.2% were cancelled, and 9% arrived an hour or more late.
- JetBlue was the most punctual airline here (75% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 10am did best (78% on time); around 3pm did worst (73%).
- Thursday was the most reliable day to fly (85% on time) and Tuesday the least (67%).
- The largest source of delay minutes was late-arriving aircraft (49%).
Which airline is most on time from RSW to BUF?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 82% | 0.0% | 15 min | 9.1% | 11 |
| JetBlue | 75% | 3.6% | 25 min | 11.3% | 55 |
| Southwest Airlines | 75% | 1.5% | 14 min | 7.5% | 68 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am90%10 flights
- 9am92%13 flights
- 10am78%28 flights
- 3pm73%57 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday100%14.3% cancelled
- Tuesday67%0.0% cancelled
- Wednesday67%0.0% cancelled
- Thursday85%4.8% cancelled
- Friday67%0.0% cancelled
- Saturday70%0.0% cancelled
- Sunday80%2.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft49%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion19%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)67%
- Extreme weather33%
- Air traffic control & airport congestion0%
- Security0%
RSW to BUF: common questions
- How often are RSW to BUF flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Fort Myers to Buffalo cancelled?
- 2.2% of scheduled flights were cancelled (3 of 134).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 70 min behind schedule on average, and 9.2% of flights were an hour or more late.
- How long is taxi time at RSW?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BUF to RSW — 74% on time
More flights from Fort Myers
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: RSW → BUF, nonstop flights by US airlines that report to the DOT. How we calculate this.