Direct (nonstop) flights from Dulles to San Juan
2 airlines fly nonstop from Washington Dulles International (IAD) to Luis Munoz Marin International (SJU). It's 1,571 miles (2,528 km), about 3h 52m in the air. Operated by Frontier Airlines, United Airlines.
Frontier Airlines
United Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
F9
Frontier Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to San Juan with one stop · direct emits 265 kg CO₂ per passenger
Looking for the return flight?
SJU → IAD: Flights from San Juan to DullesOther direct flights from Dulles
Direct flights from San Juan (SJU)
Frequently Asked Questions
How long is the direct flight from Dulles to San Juan?
A nonstop flight from Dulles (IAD) to San Juan (SJU) takes approximately 3 hours and 52 minutes. The distance is 1,571 miles (2,528 km).
Which airlines fly nonstop from Dulles to San Juan?
2 airlines: Frontier Airlines, United Airlines.
Is there a nonstop flight from Dulles to San Juan?
Yes. 2 airlines: Frontier Airlines, United Airlines.
How far is Dulles from San Juan?
The flight distance from Dulles to San Juan is 1,571 miles (2,528 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Dulles to San Juan?
At 3h 52m, 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 Puerto Rico?
Depends on your passport. Check with the Puerto Rico embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Dulles to San Juan?
Roughly 265 kg CO2 per passenger one-way. That's about the same as driving 1,325 km.
Is the return flight from San Juan 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 San Juan?
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.