Program Comparison
United MileagePlus vs Delta SkyMiles
A detailed comparison of United MileagePlus and Delta SkyMiles to help you decide which loyalty program is the best fit for your travel needs.
United MileagePlus
United Airlines
Delta SkyMiles
Delta Air Lines
Choose United MileagePlus if you...
Frequent domestic US travelers and Star Alliance flyers based at United hubs (ORD, EWR, IAH, SFO, DEN). United Airlines' loyalty program offering miles for flights, upgrades, and partner purchases across the Star Alliance network.
Choose Delta SkyMiles if you...
Travelers in Delta hub cities (ATL, MSP, DTW, SEA, SLC, JFK, LAX, BOS). Delta Air Lines' loyalty program with MQD-only elite qualification. Miles never expire and the domestic network is one of the strongest in the US.
Frequently Asked Questions
Which is better, United MileagePlus or Delta SkyMiles?
It depends on your travel patterns. United MileagePlus is best for frequent domestic us travelers and star alliance flyers based at united hubs (ord, ewr, iah, sfo, den). Delta SkyMiles is best for travelers in delta hub cities (atl, msp, dtw, sea, slc, jfk, lax, bos). Consider your home airport, preferred destinations, and how often you travel when choosing.
Do United MileagePlus or Delta SkyMiles miles expire?
United MileagePlus: Miles do not expire as long as the account is open and in good standing. Delta SkyMiles: Miles never expire as long as the account is active and in good standing.
Can I transfer points between United MileagePlus and Delta SkyMiles?
While you can't transfer directly between United MileagePlus and Delta SkyMiles, they share transfer partners through credit card programs, which can serve as a bridge.