Salt Lake City International Airport Statistics

Salt Lake City International Airport (SLC) anchors air travel across the Intermountain West region. The gateway moves more than 28 million passengers a year and serves as Delta Air Lines main western hub, posting record operational efficiency.

Salt Lake City International Airport handles over 28 million passengers annually.

• Salt Lake City International Airport handled 28.16 million passengers in 2025, slightly down from 28.36 million in 2024.
• The airport recovered from the pandemic in 2023 with 26.95 million passengers, edging past the 2019 mark of 26.81 million.
• Traffic has risen steadily since dropping to 12.56 million in 2020 before rebounding to 22.38 million in 2021 and 25.75 million in 2022.

International vs Domestic Passengers

While SLC is overwhelmingly domestic, international traffic is growing in strategic importance.

• Domestic passengers comprised approximately 26.66 million travelers in 2025, representing about 94.7% of total traffic.
• International passengers totaled approximately 1.5 million in 2025, accounting for 5.3% of total traffic.

Enplaned vs Deplaned Passengers

SLC posts a near-perfect balance between boarding and arriving travelers, underscoring its dual role as a connecting hub and origin-destination airport.

• Deplaned passengers totaled 14.22 million in 2025, slightly exceeding the 13.94 million enplaned passengers.
• The difference between deplaned and enplaned was approximately 1.0% of total traffic, indicating balanced traffic flow typical of major hub operations.

Delta Air Lines dominates SLC with more than half of all passengers.

• Delta Airlines carried 17.4 million passengers (61.8% market share) in 2025
• SkyWest Airlines, operating Delta Connection flights, served 3.67 million passengers (13% market share)
• Southwest Airlines ranks as the third-largest individual carrier with 2.87 million passengers (10.2% market share)
• American Airlines and United Airlines follow with 1.29 million (4.6%) and 1.22 million (4.3%) passengers respectively.

Passenger volume tops 2 million every month.

• In 2025, the busiest months were July (2.59 million), June (2.52 million), and March (2.50 million).
• The slowest were November (2.05 million), February (2.12 million), and January (2.23 million).
• Traffic climbs from winter into early summer then tapers through fall before a modest uptick in December.

Salt Lake City International Airport handles over 300 million pounds of cargo each year. However, cargo volume exceeded 400 million pounds during the pandemic period

• SLC processed 295.3 million pounds of freight and mail in 2025, down from 325.4 million pounds in 2024 and 333 million pounds in 2023.
• Volumes spiked during the pandemic, peaking at 420 million pounds in 2020 and 412.5 million pounds in 2021.
• Pre-pandemic, 2019 throughput was 388.3 million pounds.

Salt Lake City International Airport crossed $500 million for the first time in the financial year 2024.

• The airport generated $299.9 million in 2019, which dropped to $266.4 million in 2020, due to the pandemic.
• Revenue recovered in 2021 to $305.9 million and climbed to $398.7 million in 2022.
• It continued rising to $442.3 million in 2023, peaking at $555.8 million in 2024.

• Jan 15 1987: SkyWest Flight 1834 collided midair with a Mooney M20, killing 10.
• Oct 14 1989: A fire aboard Delta Flight 1554 during boarding injured five and destroyed the aircraft.
• Mar 2 1997: A Beechcraft Super King Air crashed south of the airport, killing one of four onboard.
• Nov 16 2015: An Air France A380 diverted to SLC after a bomb threat, the airport’s largest landing.
• Jan 18 2016: A Cessna 525 crashed after takeoff, killing both occupants.
• Mar 30 2021: A Delta 757 carrying the Utah Jazz landed safely after a bird strike, no injuries reported.
• Jan 1 2024: A man died after entering a Delta A220 engine following an emergency exit breach.