If that rewards structure appeals to you, right now is a great time to apply; the Freedom Unlimited's easy-to-earn welcome bonus is worth 50% more for a limited time. Instead of earning a $200 welcome bonus, you can earn $300 after spending $500 in the first three months from account opening.

Pairing the Chase Sapphire Preferred with a no-annual-fee Chase card can quietly unlock hundreds in extra travel value every year.