Distance From Northeast Florida Regional Airport to Washington Dulles International Airport, UST - IAD Distance

The distance from Northeast Florida Regional Airport (UST) to Washington Dulles International Airport (IAD) is 659 miles or 1061 kilometers or 573 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from St Augustine ( United States ) to Dulles ( United States )?

A one-way nonstop (direct) flight between St Augustine and Dulles takes around 1 hours 30 minutes.

Estimated flight time from Northeast Florida Regional Airport, St Augustine, United States to Washington Dulles International Airport, Dulles, United States is 1 hours 30 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • UST - IAD

Kilometers		1061 km
Statute Miles		659 miles
Nautical Miles		573 nm
Avg. Time of Flight		1 hours 30 minutes

Northeast Florida Regional Airport to Washington Dulles International Airport Flight Route Map - UST to IAD Flight Path

Location of Northeast Florida Regional Airport & Washington Dulles International Airport is given below.
Click the map to view St Augustine to Dulles nonstop flight path and travel direction.

Click to see flight route on Google Map between St Augustine, United States and Dulles, United States. .

Nonstop flight route between St Augustine, United States and Dulles, United States.

Time Difference Between the Airports • UST - IAD

Time difference between St Augustine (United States) and Dulles (United States) is 0 Hours.

Location	Local Time
St Augustine (United States)	2026-08-07, 22:09:27 EDT
Dulles (United States)	2026-08-07, 22:09:27 EDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Northeast Florida Regional Airport (UST / KSGJ) St Augustine, United States

Destination

Washington Dulles International Airport (IAD / KIAD) Dulles, United States