Route Reliability
SUN → Chicago
SUN–ORD · 1,341 miles · SUN Airport to Chicago O'Hare International Airport
- 59%
- Arrive within 15 minutes
- 35 min
- Average arrival delay
- 4.6%
- Cancelled
- 260
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines65%150 flights
- 2.American Airlines51%110 flights
What the data says
Morning flights do better here.
SUN–ORD flights departing between 6–9 AM arrived on time 90% of the time, versus 53% between 12–3 PM.
Friday is doing you no favors.
SUN–ORD flights arrived on time 76% of the time on Wednesdays and just 32% on Fridays. That gap is worth planning around.
United Airlines runs this route best.
United Airlines arrived on time 65% of the time on this route; American Airlines managed 51%.
Keep a backup plan handy.
This route was cancelled 4.6% of the time. Typical for U.S. flights is around 1–2%.
Flights on this route
The breakdown
- Mon52%(31 flights)
- Tue67%(27 flights)
- Wed76%(37 flights)
- Thu62%(29 flights)
- Fri32%(31 flights)
- Sat58%(48 flights)
- Sun64%(44 flights)
- 6–9 AM90%(39 flights)
- 12–3 PM53%(207 flights)
- 3–6 PM—(1 flights)
Jul 85% → Apr 50% on time
| Month | On-time percentage | Flights |
|---|---|---|
| July 2025 | 85% | 13 |
| August 2025 | 100% | 12 |
| December 2025 | 36% | 25 |
| January 2026 | 64% | 58 |
| February 2026 | 53% | 55 |
| March 2026 | 52% | 60 |
| April 2026 | 50% | 10 |
Keep nerding
Based on 260 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.