Salt Lake City to Denver International
390 miles great-circle distance, typically flown in 1h 11m with 5 airlines operating direct service from Salt Lake City (SLC) to Denver International (DEN). Cheapest fares are usually in January (around $79 return), with peak prices in August (around $237). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Salt Lake City
Salt Lake City International is Delta's principal mountain-region hub, completely rebuilt 2020–2024 with a single new concourse replacing the legacy 1960s terminals. TRAX Green Line light rail runs from the airport directly to downtown Salt Lake City in 25 minutes for $2.50. Delta operates over 90% of the schedule, making SLC essentially a Delta-monopoly hub for many destinations. International long-haul service includes Amsterdam, Paris CDG and seasonal Cancun/Mexico City through Delta and partner KLM.
Arriving in Denver
Denver International is 25 miles northeast of downtown Denver — the most remote big-city airport in the US, deliberately sited to allow for unlimited expansion. The University of Colorado A Line commuter train runs from a dedicated station every 15 minutes to Union Station in 37 minutes for $10.50. Snow can disrupt operations from November through April; Denver fares are cheapest in shoulder seasons (April–May, September–October).
Who flies SLC to DEN?
| Airline | IATA | Flight time | Cabin |
| Delta Air Lines | DL | 1h 11m | Economy |
| Southwest Airlines | WN | 1h 11m | Economy |
| American Airlines | AA | 1h 11m | Economy |
| United Airlines | UA | 1h 11m | Economy |
| JetBlue Airways | B6 | 1h 11m | Economy |
5 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly SLC→DEN
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Salt Lake City to Denver FAQs
Direct flights from Salt Lake City (SLC) to Denver International (DEN) take approximately 1h 11m for the 390-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $79. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
5 carriers operate direct service from Salt Lake City (SLC) to Denver International (DEN): Delta Air Lines, Southwest Airlines, American Airlines, United Airlines and JetBlue Airways. Frequencies vary by season and carrier — Delta Air Lines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Denver International (DEN) is the primary international airport for Denver. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.