How much does it cost to fly United Polaris?

How much does it cost to fly United Polaris? The co-pay ranges from $0 to $75 but can be as high as $250 if you’re upgrading on one of United’s p.s. transcontinental routes. On international routes, a typical upgrade between the U.S. and Europe costs 20,000 miles and $550. What routes does United fly Polaris? … Continue reading How much does it cost to fly United Polaris?