Dulles (IAD) to Los Angeles (LAX)
Flight time
≈ 5h 22m
Bearing
274° W
Dulles (IAD) to Los Angeles (LAX) is 2,283 miles (3,674 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–LAX
Filed traffic dataIn August 2026, United Airlines operated the most departures, one of 5 carriers flying nonstop IAD–LAX; the Boeing 757-300 was the most common aircraft at 36% of departures; flights ran 92% full.
Departures
377
August 2026
Seats
81,522
both directions
Passengers
74,646
both directions
Load factor
91.6%
seat-miles filled
Who flies IAD–LAX?
United Airlines operated the most nonstop IAD–LAX departures in August 2026 (362), one of 5 carriers on the route.
- UA
362 departures · 78,957 seats
Share of departures96.0%92.2%
Load
- AA
9 departures · 1,548 seats
Share of departures2.4%83.1%
Load
- DL
3 departures · 467 seats
Share of departures0.8%61.7%
Load
- SY
2 departures · 372 seats
Share of departures0.5%24.2%
Load
- AS
1 departures · 178 seats
Share of departures0.3%94.4%
Load
What plane flies IAD–LAX?
In August 2026, the Boeing 757-300 flew 36% of IAD–LAX departures — more than any other aircraft type.
- Boeing 757-300
137 departures · 91.8% load
36.3% - Boeing 737 MAX 9
121 departures · 90.5% load
32.1% - Boeing 737-900ER
64 departures · 95.3% load
17.0% - Boeing 777-200
37 departures · 93.8% load
9.8% - Boeing 737 MAX 8
9 departures · 83.1% load
2.4% - Boeing 737-800
4 departures · 41.5% load
1.1% - Boeing 737-700
2 departures · 69.4% load
0.5% - Boeing 767-400ER
1 departures · 92.8% load
0.3% - Boeing 757-200
1 departures · 38.9% load
0.3% - Boeing 787-9
1 departures · 85.6% load
0.3%
How has IAD–LAX traffic changed?
Nonstop IAD–LAX departures rose from 355 in September 2025 to 377 in August 2026.
Monthly nonstop IAD–LAX traffic, trailing 12 months through August 2026. Bars scale to the busiest month; months with no filed service show as zero.
September 2025
355 departures · 55,040 passengers
83.0%
Load
October 2025
406 departures · 68,522 passengers
85.4%
Load
November 2025
398 departures · 63,395 passengers
83.7%
Load
December 2025
427 departures · 71,806 passengers
86.8%
Load
January 2026
333 departures · 57,432 passengers
85.4%
Load
February 2026
319 departures · 52,247 passengers
84.2%
Load
March 2026
369 departures · 66,985 passengers
91.4%
Load
April 2026
450 departures · 75,475 passengers
86.9%
Load
May 2026
504 departures · 85,328 passengers
88.2%
Load
June 2026
504 departures · 89,152 passengers
92.6%
Load
July 2026
490 departures · 87,871 passengers
93.2%
Load
August 2026
377 departures · 74,646 passengers
91.6%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → LAX
89.0% full
189 departures · 36,404 passengers
LAX → IAD
94.1% full
188 departures · 38,242 passengers
Nonstop IAD–LAX traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through August 2026; filings from 2025. Public domain (US Government work). Load factor is RPM ÷ ASM (revenue passenger-miles ÷ available seat-miles).
The airports
Frequently asked
How far is Dulles (IAD) from Los Angeles (LAX)?
IAD to LAX is 2,283 miles (3,674 km / 1,984 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to LAX?
A nonstop covers the 2,283-mile great-circle distance in roughly 5h 22m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–LAX?
In August 2026, the Boeing 757-300 flew the largest share of departures (36.3%), followed by the Boeing 737 MAX 9 (32.1%).
What mileage do I earn flying IAD–LAX?
Distance-based programs credit off the 2,283-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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