Airlines are deleting miles faster than ever. Flying keeps them alive--downloading an iTunes song does, too.
Delta
- Credit Card: Delta SkyMiles American Express, free first year, $85 annually thereafter; 15,000 bonus miles with first purchase
- Shopping: skymilesshopping.com (150 partner retailers)
- Our Pick: Digital photo from partner Shutterfly (19¢)
JetBlue
- Credit Card: American Express JetBlue Card, $40 annually; 25 TrueBlue points with first purchase
- Shopping: None
- Our Pick: Using the credit card extends the life of points for an additional year
Northwest
- Credit Card: WorldPerks Visa Platinum Card, $55 annually; 10,000 bonus miles with first purchase
- Shopping: nwa.com/mall (150 partner retailers)
- Our Pick: Take the five-minute quiz at nwa.com/worldperks/university
Southwest
- Credit Card: Southwest Rapid Rewards Visa, $59 annually; eight credits after first purchase
- Shopping: None
- Boo! Hiss!: Without exception, mileage credits expire after two years
United
- Credit Card: United Mileage Plus Visa, free first year, $60 annually thereafter; 21,000 bonus miles after you spend $250
- Shopping: mponlinemall.com (155 partner retailers)
- Our Pick: Groceries bought online through partner Safeway
US Airways
- Credit Card: US Airways World MasterCard, free first year, $79 annually thereafter; 15,000 bonus miles with first purchase
- Shopping: usairways.com/shop (75 partner retailers)
- Our Pick: Download a song or two at partner iTunes (99¢)
Note: This story was accurate when it was published. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.