Flight Reliability
F9 3398 · Frontier Airlines
Chicago → Atlanta (ORD–ATL)
40
Bring Snacks
WanderNerd Reliability Score
- 67%
- Arrive within 15 minutes
- 39 min
- Average arrival delay
- 5.1%
- Cancelled
- 1 min early
- Median arrival delay
Based on 79 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 3398 departing between 9 AM–12 PM arrived on time 69% of the time, versus 62% between 3–6 PM.
Mondays have been rough.
F9 3398 arrived on time 91% of the time on Saturdays and just 44% on Mondays. That gap is worth planning around.
Lagging the ORD–ATL route.
F9 3398 arrived on time 67% of the time, versus 75% across the ORD–ATL route.
A bit behind the Frontier Airlines network.
F9 3398 arrived on time 67% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon44%(16 flights)
- Tue62%(13 flights)
- Wed85%(13 flights)
- Thu—(5 flights)
- Fri71%(14 flights)
- Sat91%(11 flights)
- Sun—(3 flights)
- 9 AM–12 PM69%(29 flights)
- 12–3 PM67%(33 flights)
- 3–6 PM62%(13 flights)
64%
Dec
Sep 79% → Dec 64% on time
| Month | On-time percentage | Flights |
|---|---|---|
| September 2025 | 79% | 19 |
| October 2025 | 68% | 19 |
| December 2025 | 64% | 25 |
- Departures on time
- 67%
- Diverted
- 0%
- Flights flown
- 75
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 79 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.