Direct (nonstop) flights from Dulles to Cancun
1 airline flys nonstop from Washington Dulles International (IAD) to Cancun International Airport (CUN). It's 1,355 miles (2,180 km), about 3h 51m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to Cancun with one stop · direct emits 229 kg CO₂ per passenger
Looking for the return flight?
CUN → IAD: Flights from Cancun to DullesOther direct flights from Dulles
Direct flights from Cancun (CUN)
Frequently Asked Questions
How long is the direct flight from Dulles to Cancun?
A nonstop flight from Dulles (IAD) to Cancun (CUN) takes approximately 3 hours and 51 minutes. The distance is 1,355 miles (2,180 km).
Which airlines fly nonstop from Dulles to Cancun?
Just United Airlines.
Is there a nonstop flight from Dulles to Cancun?
Yes. 1 airline: United Airlines.
How far is Dulles from Cancun?
The flight distance from Dulles to Cancun is 1,355 miles (2,180 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What is the time difference between Dulles and Cancun?
Cancun is 1 hour behind Dulles. (America/New_York vs America/Cancun.)
What type of aircraft flies from Dulles to Cancun?
At 3h 51m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from USA to Mexico?
Depends on your passport. Check with the Mexico embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Dulles to Cancun?
Roughly 229 kg CO2 per passenger one-way. That's about the same as driving 1,145 km.
Is the return flight from Cancun to Dulles also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Dulles to Cancun?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Washington Dulles International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.