Frontier miles: cost of car rental vouchers go up on 12/15/17

[heavenlyjane]

Those of you with a decent bucket of Early Rewards miles should be aware that the cost of a National car rental voucher is going up by a ton on 12/15/2017 (4 days left at old price).

There's very little decent alternative redemptions for Early Reward miles, besides

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Early Rewards Mileage Redemption Levels:

• Mileage Redemption Level: 12,000 Early Rewards Miles
  Redeem today for a gift coupon valid for two days on a midsize car with National Car Rental. Offer not valid in Manhattan, NY. [Beginning 12/15/17 rates for this rental will increase to 22,000 ER miles - this represents an 83% increase]

• Mileage Redemption Level: 37,000
• Go Like a Pro! Redeem today for a gift coupon valid for seven days on a midsize car with National Car Rental. Offer not valid in Manhattan, NY. [Beginning 12/15/17 rates for this rental will be increasing to ER 52,000 miles - this represents a 40% increase]