Question 1

Which airline is most on-time from Denver, CO to San Diego, CA?

Accepted Answer

Alaska Airlines has the best on-time record on DEN → SAN at 80%, across 776 flights (median arrival delay -8 min).

Question 2

Which airlines fly DEN to SAN?

Accepted Answer

Alaska Airlines, United Airlines, Frontier Airlines, Southwest Airlines appear in the historical BTS data for DEN → SAN.

Airline	Flights	On-time	Median delay	Cancelled
Alaska Airlines	776	80%	-8 min	1%
United Airlines	2,081	80%	-6 min	0%
Frontier Airlines	703	80%	-9 min	1%
Southwest Airlines	2,389	70%	+1 min	1%

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Which airline should you fly from DEN to SAN?