Salt Lake City International Airport has officially finished a rebuild that took 12 years and cost more than $5 billion. The last piece — the final section of Concourse B East — opens to passengers on Tuesday, closing out the New SLC Redevelopment Program that began way back in July 2014.
The scale of the project is staggering: nearly 25,000 craftworkers put in a combined 18 million hours to build what is essentially a brand-new airport. The airport marked the finish line with a 'Gateway to the World' celebration on Saturday, October 24, complete with a suspended installation of around 2,500 laser-cut acrylic airplanes, a 37-strong vocal ensemble with 21 musicians, and a screening of a documentary about the airport's transformation. Airport executive director Bill Wyatt credited the hundreds of workers who pushed through numerous challenges to get it done.
The new Concourse B East section adds about 132,000 square feet of space and six food and drink options, including Einstein Bros. Bagels, Monarca and Swig. But the most interesting detail for frequent flyers is who gets the gates. Of the seven new gates, five go to United Airlines — a Star Alliance carrier and direct rival of Delta — while the remaining two will be common-use.
That's a notable move given Delta's grip on the airport. SLC is famously a Delta hub, and the numbers back it up: aviation analytics firm Cirium shows Delta planning 7,182 flights from Salt Lake City in November 2026, versus just 593 for United. Out of roughly 9,700 departures that month, Delta operates the lion's share.
Still, United is quietly growing faster at SLC. Its November 2026 schedule is up 2.8% year on year against Delta's 1.6%, and while Delta's seat capacity has actually dipped 0.5% despite running more flights, United's capacity is up 1.8%. Five permanent gates suggest United intends to keep chipping away at Delta's Utah dominance — good news for travellers, since more competition at a fortress hub usually means better fares and more nonstop options.
For passengers, the practical takeaway is simple: SLC now has a fully rebuilt, award-winning airport with room to breathe. Whether you're connecting through Delta's mega-hub or flying United nonstop, you'll be doing it from a modern facility with plenty of new dining, more gates and space that the old terminal could only dream of. The phased opening began in 2020, so many travellers have already passed through — but with construction finally wrapped, the airport can now operate without the workarounds and disruption that come with a decade-long build.
Anyone flying into or through Utah in the coming months will get the finished product: a cleaner, bigger, better-connected gateway to Salt Lake City, the ski resorts of the Wasatch Front and the national parks beyond.
