Have you been searching for a stock that might be well-positioned to maintain its earnings-beat streak in its upcoming report? It is worth considering United Airlines (UAL) , which belongs to the Zacks Transportation - Airline industry.When looking at the last two reports, this airline has recorded a strong streak of surpassing earnings estimates. The company has topped estimates by 15.79%, on average, in the last two quarters.For the most recent quarter, United was expected to post earnings of $1.61 per sh ...