United Airlines - Lambert St Louis Airport (STL)

Table of contents: Terminal Arrivals and Departures Check-in General Information and contact Punctuality and delays Destinations Served

On Time performance:

We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Terminal

Arrivals and Departures Terminal:

United Airlines uses Terminal 1 at Lambert St Louis Airport.

Some flights labeled as United Airlines are codeshare flights operated by other Airlines. As a result, the following terminals are used for codeshare flights labeled as United Airlines: Terminal 2.

Arrivals and Departures

Follow the links below in order to see all the flights scheduled for United Airlines

- United Airlines Arrivals
- United Airlines Departures

Check-in

In order to check in for your flight at Lambert St Louis Airport (STL), go to the terminal where your flight departs from, or follow the instructions provided in your ticket.

General Information and contact

- IATA Code: UA
- Website: www.united.com/ual/en/us/

Codeshare

This airline operate some flights, but other flights are codeshare flights operated by the following airlines

- Air Canada
- Lufthansa

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from April 14, 2025 to July 13, 2025, we have obtained these figures.
Total number of flights: 1927
On Time: 1375 ( 71 % )
Moderate Delay: 150 ( 8 % )
Significant Delay: 128 ( 7 % )
Major Delay: 240 ( 12 % )
Canceled: 0 ( 0 % )
Diverted: 34 ( 2 % )

Average Delay: 25 minutes.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from January 14, 2025 to July 13, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from July 02, 2024 to June 30, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Destinations Served

United Airlines currently serves a variety of destinations from Lambert St Louis Airport:To see the destinations and their flight frequency, please select the country.

United States of America


											- Chicago (ORD): Daily
- Denver (DEN): Daily
- Dulles (IAD): Daily
- Houston (IAH): Daily
- Newark (EWR): Daily
- San Francisco (SFO): Daily

The information provided above does not include details about seasonal flights that are not currently being served at this moment, which means that only the flights currently in operation are covered in the information provided.