Card comparison
Business Platinum vs United Club Business: which lounge card fits?
A four-network Amex card at $895 against a United-only Chase card at $450. The split is how much of your flying is on United.
- 955
- 53
- 427
- 34
Side by side
No lounge network in common.
Airport by airport
Lounges each card opens, busiest airports first.
And 409 more airports; each card's page lists them all.
Two cards, no shared lounges#
The Business Platinum Card from American Express opens Priority Pass, Centurion Lounge, Plaza Premium, and Escape Lounges, with Delta Sky Club on top when you are flying Delta the same day.
The United Club Business Card from Chase does one thing. It unlocks United Club. There is no Priority Pass underneath and no third-party network to fall back on. At a United hub that focus is the whole point; anywhere else the card has little to say at the lounge door.
What $895 buys over $450#
Breadth. Four networks that work whatever you fly, plus conditional Delta access. That is the entire case for the Business Platinum, and it is a strong one for mixed-carrier travel, for international itineraries where Priority Pass and Plaza Premium fill the gaps, and for anyone who values a Centurion Lounge at their home airport.
The United card wins for a business that lives on United metal, particularly through hubs where United Club locations cluster. On those routes you would pay a great deal more for the Amex and mostly use lounges you could not reach with it anyway. Both are business products with their own spending perks, but only lounge value is measured here.
Run your own numbers#
Take your next three likely airports and check which lounges each card actually opens there. Note whether the United Club is in your departure terminal. Then read the enrollment steps, same-day boarding-pass rules, visit caps and guest fees, which vary by network. I'd confirm current benefits with the issuer before applying. Our methodology explains how access is tracked here.
Putting this into practice#
I would start this comparison with the next few trips already likely to happen. For each card, I'd list the lounges that fit those airports and departure areas, then remove locations that would require an impractical detour. That is a more useful comparison than adding up every lounge in a worldwide network, most of which may never help with those trips.
Guest rules deserve their own line in the calculation. A card that works well for one person can be a different proposition for a couple or family. I'd compare the cost for the party that actually travels, including any separate membership or additional-card charge. I would not assume a benefit on one version of a card applies to another version.
The annual fee is only part of the decision. I would value other benefits at the amount I would realistically use, rather than automatically count a credit at face value. A benefit that requires a booking I would not otherwise make does not reduce my costs in the same way as money saved on an existing plan.
The trade-offs I would check#
I would check enrollment and the credential needed at reception before relying on either card. Some benefits are used through a separate membership rather than by showing the payment card. The issuer's current terms should settle the visit allowance, guest treatment and any airline or fare restriction. The comparison above helps identify the differences worth checking.
Related reading#
Cite this article
Patrick Karsh. “Business Platinum vs United Club Business: which lounge card fits?.” Lounge Frog. Published 2026-09-30. Updated 2026-10-14. https://www.loungefrog.com/cards/amex-business-platinum/vs/united-club-business
Wikipedia citation
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Quick answers
Which has more lounge access, the Business Platinum Card or the United Club Business Card?
The Business Platinum Card: 955 lounges in our directory against 53.
Which lounge networks do they share?
None; every network either card opens is its own.
Where does only one of them get you in?
The Business Platinum Card alone reaches 395 airports and the United Club Business Card alone 2 airports.
What do they cost?
The Business Platinum Card is $895 a year and the United Club Business Card $695, as last published by each issuer.
Written and checked to our editorial standards. Scores follow our methodology. Join the discussion below.
