$50 gift card or $250 off a Delta ticket – American Express : Delta SkyMiles Gold Business Credit Card; Exp. – unknown

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Note: You can exchange 18,000 of 25,000 bonus miles for a $50 gift card (see an example here) or $250 in Delta airfare (see more info here). There is no annual fee in the first year.
Terms:
Rewards
The Official Card of the World's Largest Airline
* Earn up to 25,000 bonus miles, enough for a roundtrip domestic Award Ticket
- 20,000 miles with your first purchase on the Card
* - 5,000 miles when you sign up 2 Additional Cards 2 miles for every eligible dollar spent on qualifying Delta and Northwest flights
* 1 mile for every eligible dollar spent
* No seat restrictions or blackout dates on Delta and Northwest flights by using the exclusive Pay with Miles feature
* No limit to the number of miles you can earn, and miles do not expire as long as you use the Card
Features
* Receive a $99 Companion Certificate every year you renew your Card
* Save up to 10% automatically on business expenses from FedEx, Hertz® Hyatt Hotels & Resorts®, and more with OPEN Savings®
* Insurance coverage that protects you and gives you added peace of mind when you travel
* Online expense management tools that can be customized to track charges and monitor exactly where, when, and how company dollars are spent
Annual Fee
* No annual fee in the first year–a savings of $95