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Hayden (HDN) to Dulles (IAD)

1,578mi
2,539 km1,371 nm

Flight time

≈ 3h 57m

Bearing

84° E

Hayden (HDN) to Dulles (IAD) is 1,578 miles (2,539 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: HDN → IADHDNIAD

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What actually flies HDNIAD

US DOT T-100 · filed data

In April 2026, United Airlines was the only carrier flying nonstop HDN–IAD; the Boeing 737 MAX 8 was the most common aircraft at 100% of departures; flights ran 30% full.

Departures

2

April 2026

Seats

332

both directions

Passengers

100

both directions

Load factor

30.1%

passengers ÷ seats

Who flies HDN–IAD?

United Airlines was the only carrier to fly nonstop HDN–IAD in April 2026 (2 departures).

  • UA

    United Airlines

    2 departures · 332 seats

    30.1%

    Load

What plane flies HDN–IAD?

In April 2026, the Boeing 737 MAX 8 flew 100% of HDN–IAD departures.

How has HDN–IAD traffic changed?

Nonstop HDN–IAD departures fell from 3 in December 2025 to 2 in April 2026.

Monthly nonstop HDNIAD traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • December 2025

    3 departures · 304 passengers

    61.0%

    Load

  • January 2026

    10 departures · 1,209 passengers

    72.8%

    Load

  • February 2026

    8 departures · 1,037 passengers

    78.1%

    Load

  • March 2026

    8 departures · 1,066 passengers

    80.3%

    Load

  • April 2026

    2 departures · 100 passengers

    30.1%

    Load

By direction

The DOT files each direction separately — they rarely match.

HDNIAD

52.4% full

1 departures · 87 passengers

IADHDN

7.8% full

1 departures · 13 passengers

Nonstop HDN–IAD traffic has been filed with the US DOT since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.

The airports

HDN

US

Yampa Valley Airport

Coordinates

40.48°N, 107.22°W

Hemisphere

N · W

IAD

US

Washington Dulles International Airport

Coordinates

38.94°N, 77.46°W

Hemisphere

N · W

Frequently asked

How far is Hayden (HDN) from Dulles (IAD)?

HDN to IAD is 1,578 miles (2,539 km / 1,371 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from HDN to IAD?

A nonstop covers the 1,578-mile great-circle distance in roughly 3h 57m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies HDN–IAD?

In April 2026, the Boeing 737 MAX 8 flew the largest share of departures (100.0%).

What mileage do I earn flying HDN–IAD?

Distance-based programs credit off the 1,578-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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