Dulles (IAD) to Charlotte Amalie (STT)
Flight time
≈ 4h 01m
Bearing
149° SE
Dulles (IAD) to Charlotte Amalie (STT) is 1,609 miles (2,589 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–STT
Filed traffic dataIn July 2026, United Airlines was the only carrier flying nonstop IAD–STT; the Boeing 737 MAX 8 was the most common aircraft at 100% of departures; flights ran 87% full.
Departures
69
July 2026
Seats
11,454
both directions
Passengers
10,020
both directions
Load factor
87.5%
RPM ÷ ASM
Who flies IAD–STT?
United Airlines was the only carrier to fly nonstop IAD–STT in July 2026 (69 departures).
- UA
69 departures · 11,454 seats
Share of departures100.0%87.5%
Load
What plane flies IAD–STT?
In July 2026, the Boeing 737 MAX 8 flew 100% of IAD–STT departures.
- Boeing 737 MAX 8
69 departures · 87.5% load
100.0%
How has IAD–STT traffic changed?
Nonstop IAD–STT departures rose from 37 in August 2025 to 69 in July 2026.
Monthly nonstop IAD–STT traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
37 departures · 4,887 passengers
79.6%
Load
September 2025
8 departures · 708 passengers
53.3%
Load
October 2025
20 departures · 2,343 passengers
70.6%
Load
November 2025
61 departures · 8,384 passengers
82.8%
Load
December 2025
90 departures · 12,094 passengers
81.0%
Load
January 2026
69 departures · 9,261 passengers
80.8%
Load
February 2026
55 departures · 7,709 passengers
84.4%
Load
March 2026
63 departures · 8,720 passengers
83.4%
Load
April 2026
59 departures · 8,257 passengers
84.3%
Load
May 2026
66 departures · 9,555 passengers
87.2%
Load
June 2026
67 departures · 9,919 passengers
89.2%
Load
July 2026
69 departures · 10,020 passengers
87.5%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → STT
89.5% full
35 departures · 5,203 passengers
STT → IAD
85.4% full
34 departures · 4,817 passengers
Nonstop IAD–STT traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Charlotte Amalie
VI
Cyril E. King Airport
Coordinates
18.34°N, 64.98°W
Hemisphere
N · W
Frequently asked
How far is Dulles (IAD) from Charlotte Amalie (STT)?
IAD to STT is 1,609 miles (2,589 km / 1,398 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to STT?
A nonstop covers the 1,609-mile great-circle distance in roughly 4h 01m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–STT?
In July 2026, the Boeing 737 MAX 8 flew the largest share of departures (100.0%).
What mileage do I earn flying IAD–STT?
Distance-based programs credit off the 1,609-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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