How has UAL's gross profit trended over the past year?

United Airlines' gross margin has shown a seasonal fluctuating upward trend over the past year, with a few fluctuations. Here's a detailed analysis:

1. **Gross Margin Trend**: The gross margin for UAL has been on an upward trajectory, starting from 63.06% on March 31, 2024, and gradually increasing to 66.21% by June 30, 2024. This indicates a general improvement in the company's gross profit margin over the period.
2. **Peak and Subsequent Decline**: After reaching a peak of 66.21% in Q2 2024, the gross margin experienced a slight dip to 67% by Q3 2024. However, it then dropped to 67.38% by Q4 2024, which is still higher than the initial point of 63.06% in Q1 2024.
3. **Seasonal Variations**: The trend suggests that UAL's gross margin is influenced by seasonal factors, with a potential peak in the summer months (Q2) and a slight dip in the following quarter (Q3). This could be due to variations in passenger demand and airline operations during different seasons.

In summary, UAL's gross profit margin has been steadily improving over the past year, with a peak in the summer and a slight dip in the subsequent quarter, reflecting seasonal variations in airline operations and passenger demand.