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 May 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop IAD–LAX; the Boeing 737 MAX 9 was the most common aircraft at 36% of departures; flights ran 88% full.
Departures
504
May 2026
Seats
96,764
both directions
Passengers
85,328
both directions
Load factor
88.2%
RPM ÷ ASM
Who flies IAD–LAX?
United Airlines operated the most nonstop IAD–LAX departures in May 2026 (441), one of 3 carriers on the route.
- UA
441 departures · 86,028 seats
Share of departures87.5%88.5%
Load
- AA
62 departures · 10,664 seats
Share of departures12.3%85.4%
Load
- DL
1 departures · 72 seats
Share of departures0.2%55.6%
Load
What plane flies IAD–LAX?
In May 2026, the Boeing 737 MAX 9 flew 36% of IAD–LAX departures — more than any other aircraft type.
- Boeing 737 MAX 9
179 departures · 88.4% load
35.5% - Boeing 737-900ER
131 departures · 87.0% load
26.0% - Boeing 757-300
129 departures · 89.8% load
25.6% - Boeing 737 MAX 8
51 departures · 83.8% load
10.1% - Boeing 737-800
11 departures · 93.1% load
2.2% - Boeing 757-200
3 departures · 92.5% load
0.6%
How has IAD–LAX traffic changed?
Nonstop IAD–LAX departures rose from 451 in June 2025 to 504 in May 2026.
Monthly nonstop IAD–LAX traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
451 departures · 86,162 passengers
90.8%
Load
July 2025
442 departures · 84,206 passengers
91.1%
Load
August 2025
395 departures · 67,562 passengers
91.7%
Load
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
By direction
Each direction is filed separately — they rarely match.
IAD → LAX
86.7% full
252 departures · 42,034 passengers
LAX → IAD
89.6% full
252 departures · 43,294 passengers
Nonstop IAD–LAX 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 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 May 2026, the Boeing 737 MAX 9 flew the largest share of departures (35.5%), followed by the Boeing 737-900ER (26.0%).
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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