Route Reliability
San Francisco → Philadelphia
SFO–PHL · 2,522 miles · San Francisco International Airport to Philadelphia International Airport
- 86%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 1.4%
- Cancelled
- 1,912
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines88%684 flights
- 2.American Airlines85%1,228 flights
What the data says
The 3–6 AM departure wins.
SFO–PHL flights departing between 3–6 AM arrived on time 100% of the time, versus 60% between 12–3 AM.
Wednesday has been the better bet.
A small edge: 88% on time on Wednesdays against 84% on Sundays.
Not much between United Airlines and American Airlines.
On this route they all land within 85% to 88% on time. Pick on schedule and price.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon87%(280 flights)
- Tue87%(244 flights)
- Wed88%(259 flights)
- Thu86%(282 flights)
- Fri85%(285 flights)
- Sat87%(250 flights)
- Sun84%(281 flights)
- 12–3 AM60%(10 flights)
- 3–6 AM100%(44 flights)
- 6–9 AM91%(589 flights)
- 9 AM–12 PM76%(356 flights)
- 12–3 PM82%(216 flights)
- 3–6 PM—(8 flights)
- 6–9 PM94%(18 flights)
- 9 PM–12 AM88%(640 flights)
Jun 87% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 145 |
| July 2025 | 73% | 177 |
| August 2025 | 78% | 167 |
| September 2025 | 89% | 166 |
| October 2025 | 87% | 180 |
| November 2025 | 90% | 147 |
| December 2025 | 89% | 159 |
| January 2026 | 86% | 113 |
| February 2026 | 96% | 111 |
| March 2026 | 92% | 146 |
| April 2026 | 91% | 162 |
| May 2026 | 82% | 208 |
Same trip, other airports
Keep nerding
Based on 1,912 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.