Dulles (IAD) to Las Vegas (LAS)
Flight time
≈ 4h 55m
Bearing
276° W
Dulles (IAD) to Las Vegas (LAS) is 2,061 miles (3,316 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–LAS
Filed traffic dataIn May 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop IAD–LAS; the Boeing 737 MAX 9 was the most common aircraft at 39% of departures; flights ran 86% full.
Departures
173
May 2026
Seats
30,703
both directions
Passengers
26,466
both directions
Load factor
86.2%
RPM ÷ ASM
Who flies IAD–LAS?
United Airlines operated the most nonstop IAD–LAS departures in May 2026 (149), one of 3 carriers on the route.
- UA
149 departures · 26,281 seats
Share of departures86.1%87.9%
Load
- F9
22 departures · 4,404 seats
Share of departures12.7%76.3%
Load
- 27Q
2 departures · 18 seats
Share of departures1.2%11.1%
Load
What plane flies IAD–LAS?
In May 2026, the Boeing 737 MAX 9 flew 39% of IAD–LAS departures — more than any other aircraft type.
- Boeing 737 MAX 9
68 departures · 85.6% load
39.3% - Boeing 737-900ER
51 departures · 88.0% load
29.5% - Boeing 737-800
29 departures · 93.1% load
16.8% - Airbus A320neo
14 departures · 79.7% load
8.1% - Airbus A321neo
6 departures · 67.4% load
3.5% - Gulfstream Aerospace Gulfstream G280
2 departures · 11.1% load
1.2% - Airbus A320
2 departures · 87.5% load
1.2% - Boeing 737 MAX 8
1 departures · 100.0% load
0.6%
How has IAD–LAS traffic changed?
Nonstop IAD–LAS departures fell from 233 in June 2025 to 173 in May 2026.
Monthly nonstop IAD–LAS traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
233 departures · 37,430 passengers
79.1%
Load
July 2025
246 departures · 37,239 passengers
80.2%
Load
August 2025
239 departures · 35,655 passengers
81.8%
Load
September 2025
182 departures · 27,078 passengers
84.1%
Load
October 2025
186 departures · 29,191 passengers
86.1%
Load
November 2025
179 departures · 26,186 passengers
82.4%
Load
December 2025
185 departures · 28,648 passengers
73.7%
Load
January 2026
173 departures · 25,744 passengers
82.5%
Load
February 2026
148 departures · 22,394 passengers
84.8%
Load
March 2026
161 departures · 25,952 passengers
91.0%
Load
April 2026
161 departures · 26,930 passengers
84.4%
Load
May 2026
173 departures · 26,466 passengers
86.2%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → LAS
84.0% full
87 departures · 12,999 passengers
LAS → IAD
88.5% full
86 departures · 13,467 passengers
Nonstop IAD–LAS traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Dulles (IAD) from Las Vegas (LAS)?
IAD to LAS is 2,061 miles (3,316 km / 1,791 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to LAS?
A nonstop covers the 2,061-mile great-circle distance in roughly 4h 55m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–LAS?
In May 2026, the Boeing 737 MAX 9 flew the largest share of departures (39.3%), followed by the Boeing 737-900ER (29.5%).
What mileage do I earn flying IAD–LAS?
Distance-based programs credit off the 2,061-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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