A credit card offering 150,000 airline miles would be the most talked about news on the blogosphere any week. This offer is available on the United Business Card, which is quite remarkable if you value United miles and other perks. This is a sign that times are changing and it's difficult to recommend a 150K offer above other options. However, this card is a business card so it might be worth opening if you qualify and can spend high.The Key Card Details & OfferTo view our dedicated card page, click the details below. You can also find a link to submit your application.Quick ThoughtsThis offer is 75K after spending $5K. The other half of it requires a larger amount of spending. This offer could still be compelling if you are interested in the miles and other perks.The card includes 2 United Club passes each year. This helps to reduce the annual fee. The $100 reimbursement would be nice if you book at least 7 United flights costing $100 or more. You can also get a 5,000 mile anniversary bonus if you have a United personal or business card. Anyone who can take advantage of all the benefits may be able to find the card worth $99 annually.It is certainly a large bonus in terms of airline miles. One could also open a Chase Ink Business Unlimited and Chase Ink Cash cards to get 150,000 Ultimate Rewards points. These Ultimate Rewards points could be used 1:1 to United for $15K in spend, no annual fees and a better long-term return than any other types of spending. This strategy doesn't come with the United Club passes or a first checked bag, but it does give you the option to transfer to other partners if it is more beneficial.This card is a business credit card so it won't increase your 5/24. Chase's 5/24 rule applies to approvals. This means that you won't be approved if 5 or more credit card accounts have been opened in the last 24 months. If you are approved, however, the card will not increase your 5/24.Although I doubt this offer is worth $20K, it is still exciting to see airline cards offering bonus codes in the six digits. Some will worry about bigger bonuses causing devaluations. However, large bonuses often allow those who are willing to put their time into finding the best ways to maximize the value. Although United miles may not offer as many opportunities, the United mile excursionist perk is still very valuable and can be a good value for domestic economy-class flights. This offer is possible if you are able to use the miles effectively.