LGA to STL flight delays & on-time performance
Nonstop flights from LaGuardia Airport to St. Louis Lambert International Airport · 888 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LGA or STL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from New York (LGA) to St. Louis (STL) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.2% were cancelled, and 8% arrived an hour or more late.
- Republic Airways was the most punctual airline here (78% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 6am did best (95% on time); around 6pm did worst (58%).
- Wednesday was the most reliable day to fly (81% on time) and Sunday the least (72%).
- The largest source of delay minutes was late-arriving aircraft (50%).
Which airline is most on time from LGA to STL?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 89% | 0.0% | 3 min | 0.0% | 28 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 78% | 5.1% | 17 min | 8.4% | 1,201 |
| Southwest Airlines | 75% | 3.4% | 18 min | 8.3% | 1,394 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am95%262 flights
- 7am94%85 flights
- 8am86%160 flights
- 9am83%159 flights
- 10am82%355 flights
- 11am65%42 flights
- 12pm82%359 flights
- 1pm87%78 flights
- 2pm75%100 flights
- 3pm64%267 flights
- 4pm78%69 flights
- 5pm68%146 flights
- 6pm58%428 flights
- 7pm69%58 flights
- 8pm72%30 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%7.7% cancelled
- Tuesday78%4.9% cancelled
- Wednesday81%3.2% cancelled
- Thursday77%3.2% cancelled
- Friday76%2.4% cancelled
- Saturday74%1.9% cancelled
- Sunday72%4.8% 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 aircraft50%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)22%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather46%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion25%
- Security0%
LGA to STL: common questions
- How often are LGA to STL flights on time?
- 77% 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 New York to St. Louis cancelled?
- 4.2% of scheduled flights were cancelled (109 of 2,623).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 69 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at LGA?
- Flights on this route spent 26 min taxiing from the gate to takeoff on average.
Related routes
Return trip: STL to LGA — 75% on time
More flights from New York
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LGA → STL, nonstop flights by US airlines that report to the DOT. How we calculate this.