If you're earning a lot of miles, I would consider using them for seat upgrades instead of free flights. (creditcards.com)
This card also gets you a $ 300 annual travel credit to use for qualifying airline purchases such as seat upgrades, baggage fees, and preferred lounge memberships or passes. (millionmilesecrets.com)
You also can get free seat upgrades — hello, extra legroom — and a higher rewards rate, including a bonus when you buy the flight with the airline rewards card. (valuepenguin.com)