Denver to Singapore
18h 32mgate to gate
The flight from Denver International Airport (DEN) to Singapore Changi Airport (SIN) covers 14,585 km (9,063 miles) and takes approximately 18h 32m gate to gate for a typical jet.
The route heads north-west on an initial great-circle bearing of 320°, passing near 53.5° N, 152.5° E at its midpoint.
Bearing 320° north-west Midpoint 53.5° N, 152.5° E Model 805 km/h + 25 min
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
- Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 14,585 km.
- Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 18h 07m.
- Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 18h 32m gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
14,585 km / 805 km/h = 18h 07m airborne
+ 25 min ground = 18h 32m gate to gate
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
The same route, plotted on a world grid
The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 26h 31m | 26h 56m |
| Narrowbody jet (A320, 737) | 780 km/h | 18h 42m | 19h 07m |
| Widebody jet (777, 787, A350) | 900 km/h | 16h 12m | 16h 38m |
| Private jet (Gulfstream) | 850 km/h | 17h 10m | 17h 35m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Both airports
| DEN | SIN | |
|---|---|---|
| Airport | Denver International Airport | Singapore Changi Airport |
| City | Denver | Singapore |
| Country | United States | Singapore |
| ICAO | KDEN | WSSS |
| Coordinates | 39.86, -104.6738 | 1.3502, 103.994 |
| Elevation | 5,431 ft | 22 ft |
Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.
Questions this plate answers
How long is the flight from Denver to Singapore?
A non-stop flight from Denver (DEN) to Singapore (SIN) takes about 18h 32m. The great-circle distance is 14,585 km (9,063 miles, 7,875 nautical miles), flying north-west on an initial bearing of 320°.
How far is Denver from Singapore?
14,585 kilometres in a straight line over the earth's surface — 9,063 miles or 7,875 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between DEN and SIN?
This page calculates the direct-line time and distance; it does not track airline schedules. At 14,585 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.
What should I expect on a 18h 32m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
