FlyerTalk Forums - View Single Post - Upgrading to Mint closer to flight
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Old Jun 6, 2016 | 12:47 pm
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sfozrhfco
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Join Date: Apr 2003
Programs: B6 Mosaic 3, Bonvoy LT Titanium (x SPG LT), UA Silver
Posts: 6,163
Originally Posted by MSYtoJFKagain
I've got a wedding in Monterrey in October and I need to book my flights JFK->SFO fairly soon to lock in a seat.

My question is:

I'm slated for a bonus in the interim period (Possibly) and was going to treat myself to another lovely Mint experience. What are the rules governing upgrades from base fare (Basic Blue, non-ref) to Mint? Is it just fare difference? I'm a Mosaic member if that makes any difference.
Mosaics don't pay any change fee. You just pay any fare difference.
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