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 July 2026, United Airlines operated the most departures, one of 5 carriers flying nonstop IAD–LAS; the Boeing 737-800 was the most common aircraft at 45% of departures; flights ran 89% full.
Departures
184
July 2026
Seats
35,259
both directions
Passengers
31,356
both directions
Load factor
88.9%
RPM ÷ ASM
Who flies IAD–LAS?
United Airlines operated the most nonstop IAD–LAS departures in July 2026 (119), one of 5 carriers on the route.
- UA
119 departures · 20,196 seats
Share of departures64.7%91.1%
Load
- F9
62 departures · 14,800 seats
Share of departures33.7%86.3%
Load
- 27Q
1 departures · 13 seats
Share of departures0.5%7.7%
Load
- AS
1 departures · 178 seats
Share of departures0.5%91.6%
Load
- DL
1 departures · 72 seats
Share of departures0.5%36.1%
Load
What plane flies IAD–LAS?
In July 2026, the Boeing 737-800 flew 45% of IAD–LAS departures — more than any other aircraft type.
- Boeing 737-800
82 departures · 94.0% load
44.6% - Airbus A321neo
54 departures · 85.9% load
29.3% - Boeing 737-900ER
18 departures · 85.8% load
9.8% - Boeing 737 MAX 9
17 departures · 83.2% load
9.2% - Airbus A321
8 departures · 89.3% load
4.3% - Boeing 737 MAX 8
3 departures · 93.0% load
1.6% - Gulfstream G650
1 departures · 7.7% load
0.5% - Boeing 757-200
1 departures · 36.1% load
0.5%
How has IAD–LAS traffic changed?
Nonstop IAD–LAS departures fell from 239 in August 2025 to 184 in July 2026.
Monthly nonstop IAD–LAS traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
June 2026
178 departures · 29,872 passengers
89.1%
Load
July 2026
184 departures · 31,356 passengers
88.9%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → LAS
90.9% full
94 departures · 16,532 passengers
LAS → IAD
86.8% full
90 departures · 14,824 passengers
Nonstop IAD–LAS 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
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 July 2026, the Boeing 737-800 flew the largest share of departures (44.6%), followed by the Airbus A321neo (29.3%).
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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