New York (LGA) to St. Louis (STL): On-Time Performance
Data through July 2026
The biggest risk when flying LGA to STL isn't a late arrival — it's not departing at all. 3.6% of scheduled flights on this route were cancelled, several times the typical US rate. When flights do go, 79% land on time, no worse than the national average of 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 3.6%
- Flights/day
- 7.2
- last 12 months
- Duration
- 2h 52m
- scheduled
- Distance
- 888 mi
Best airline from LGA to STL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Endeavor Airmost reliable | 85% | 12 min | 4.3% | 703 |
| Republic Airways | 80% | 15 min | 4.3% | 2,393 |
| Southwest Airlines | 77% | 17 min | 2.8% | 2,882 |
Monthly on-time trend
Best time to fly from LGA to STL
Aim for departures around 6 a.m. (93% on-time); avoid 7 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 17 min |
| Tuesdaybest | 81% | 14 min |
| Wednesday | 81% | 15 min |
| Thursday | 80% | 16 min |
| Friday | 78% | 16 min |
| Saturday | 80% | 15 min |
| Sunday | 76% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations24%
- National airspace system24%
- Weather5%
Frequently asked questions
- How often are flights from LGA to STL delayed?
- 21% of LGA–STL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 16 minutes.
- Which airline is most reliable from LGA to STL?
- Endeavor Air has the best on-time record on this route at 85%, based on 703 flights. 3 airlines flew LGA–STL frequently enough to compare in this period.
- What is the best time of day to fly from LGA to STL?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 7 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LGA to STL?
- The scheduled LGA–STL flight time averages 2h 52m over 888 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are LGA to STL flights cancelled?
- 3.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from LGA to STL?
- December 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was September 2024 at 95%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 6,006 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.