Dulles to Cancún
3h 08mgate to gate
The flight from Washington Dulles International Airport (IAD) to Cancún International Airport (CUN) covers 2,184 km (1,357 miles) and takes approximately 3h 08m gate to gate for a typical jet.
The route heads south-west on an initial great-circle bearing of 207°, passing near 30.1° N, 82.6° W at its midpoint.
Bearing 207° south-west Midpoint 30.1° N, 82.6° W 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: 2,184 km.
- Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 2h 43m.
- Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 3h 08m gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
2,184 km / 805 km/h = 2h 43m airborne
+ 25 min ground = 3h 08m 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 | 3h 58m | 4h 24m |
| Narrowbody jet (A320, 737) | 780 km/h | 2h 48m | 3h 13m |
| Widebody jet (777, 787, A350) | 900 km/h | 2h 26m | 2h 51m |
| Private jet (Gulfstream) | 850 km/h | 2h 34m | 2h 59m |
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
| IAD | CUN | |
|---|---|---|
| Airport | Washington Dulles International Airport | Cancún International Airport |
| City | Dulles | Cancún |
| Country | United States | Mexico |
| ICAO | KIAD | MMUN |
| Coordinates | 38.9445, -77.4558 | 21.0408, -86.8735 |
| Elevation | 312 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 Dulles to Cancún?
A non-stop flight from Dulles (IAD) to Cancún (CUN) takes about 3h 08m. The great-circle distance is 2,184 km (1,357 miles, 1,180 nautical miles), flying south-west on an initial bearing of 207°.
How far is Dulles from Cancún?
2,184 kilometres in a straight line over the earth's surface — 1,357 miles or 1,180 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 IAD and CUN?
This page calculates the direct-line time and distance; it does not track airline schedules. At 2,184 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
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.
