United has some of the best co-branded airline credit cards, and the Business Explorer Card is now offering up to 100,000 miles

• The United Explorer Business Card is currently offering up to 100,000 miles as a sign-up bonus — the highest-ever bonus.
• You’ll earn 50,000 miles after you spend $5,000 in the first three months, and another 50,000 miles after you spend $25,000 total in the first six months.
• You can use United miles to fly on United, as well as on Star Alliance partners including ANA.
• This offer is only available until October 10.

Like all the major US airlines, United has co-branded credit cards. They offer the standard set of benefits like a free checked bag on the respective airline read more >>>

Source : BusinessInsider.Com