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Route Reliability

New York → St. Louis

LGA–STL · 888 miles · LaGuardia Airport to St. Louis Lambert International Airport

67
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
9 min
Average arrival delay
4.2%
Cancelled
3,720
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines77%1,409 flights
  2. 2.American Airlines77%925 flights
  3. 3.Southwest Airlines74%1,386 flights

What the data says

Morning flights do better here.

LGA–STL flights departing between 6–9 AM arrived on time 91% of the time, versus 61% between 6–9 PM.

Sunday scaries are real for this one.

LGA–STL flights arrived on time 80% of the time on Wednesdays. On Sundays: 71%.

Delta Air Lines has a slight edge here.

Delta Air Lines arrived on time 77% of the time on this route; Southwest Airlines managed 74%.

Keep a backup plan handy.

This route was cancelled 4.2% of the time. Typical for U.S. flights is around 1–2%.

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

On-time by weekday
  • Mon75%(536 flights)
  • Tue76%(557 flights)
  • Wed80%(555 flights)
  • Thu77%(546 flights)
  • Fri76%(555 flights)
  • Sat80%(293 flights)
  • Sun71%(514 flights)
On-time by departure window
  • 6–9 AM91%(785 flights)
  • 9 AM–12 PM82%(769 flights)
  • 12–3 PM77%(755 flights)
  • 3–6 PM66%(515 flights)
  • 6–9 PM61%(708 flights)
  • 9 PM–12 AM71%(24 flights)
On-time trend by month
75%
May

Jun 69% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%309
July 202570%316
August 202588%326
September 202584%306
October 202573%303
November 202569%287
December 202565%285
January 202684%281
February 202684%256
March 202671%287
April 202683%298
May 202675%302

Same trip, other airports

Keep nerding

Based on 3,720 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.