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SIA to DEN: distance & flight time
Xi\'AN (Xi'an Xiguan Airport) → Denver (Denver International Airport)
6,873 mi
11,061 km · 5,972 nm
13h 57m
estimated nonstop flight time
-15h
time difference · heading northeast
See live SIA→DEN fares Phone-only fares on this route — call free
Flight time details
6,873 miles nonstop takes roughly 13h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- SIA — Xi'an Xiguan Airport · Xi\'AN, China
- DEN — Denver International Airport · Denver, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SIA
- XIY · Xi'an Xianyang International Airport22 mi away
- AKA · Ankang Wulipu Airport116 mi away
- YCU · Yuncheng Guangong Airport120 mi away
- IQN · Qingyang Airport130 mi away
Near DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 mi away
Frequently asked questions
How far is SIA from DEN?
The flight distance from Xi\'AN (SIA) to Denver (DEN) is 6,873 miles (11,061 km, 5,972 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIA to DEN?
A nonstop flight takes about 13h 57m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SIA to DEN?
Nonstop service on SIA–DEN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 57m nonstop estimate.
What is the time difference between Xi\'AN and Denver?
Denver is 15 hours behind Xi\'AN.
What is the cheapest way to fly from SIA to DEN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIA–DEN that never appear on search engines, with no booking fees.
Why are some SIA to DEN fares phone-only?
Consolidator contracts let us sell certain SIA–DEN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.