Dulles (IAD) to San Francisco (SFO)
Flight time
≈ 5h 38m
Bearing
282° W
Dulles (IAD) to San Francisco (SFO) is 2,413 miles (3,883 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–SFO
US DOT T-100 · filed dataIn April 2026, United Airlines operated the most departures, one of 2 carriers flying nonstop IAD–SFO; the Boeing 737 MAX 9 was the most common aircraft at 58% of departures; flights ran 88% full.
Departures
462
April 2026
Seats
90,679
both directions
Passengers
79,428
both directions
Load factor
87.6%
passengers ÷ seats
Who flies IAD–SFO?
United Airlines operated the most nonstop IAD–SFO departures in April 2026 (461), one of 2 carriers on the route.
- UA
United Airlines
461 departures · 90,607 seats
Share of departures99.8%87.6%
Load
- DL
Delta Air Lines
1 departures · 72 seats
Share of departures0.2%88.9%
Load
What plane flies IAD–SFO?
In April 2026, the Boeing 737 MAX 9 flew 58% of IAD–SFO departures — more than any other aircraft type.
- Boeing 737 MAX 9
267 departures · 84.7% load
57.8% - Boeing 787-9
115 departures · 94.3% load
24.9% - Boeing 757-200
58 departures · 86.0% load
12.6% - Boeing 737-900ER
9 departures · 84.5% load
1.9% - Boeing 757-300
5 departures · 76.8% load
1.1% - Boeing 777-200
3 departures · 92.6% load
0.7% - Boeing 767-300
2 departures · 47.5% load
0.4% - Boeing 787-8
2 departures · 95.1% load
0.4% - Boeing 767-400ER
1 departures · 60.6% load
0.2%
How has IAD–SFO traffic changed?
Nonstop IAD–SFO departures fell from 550 in May 2025 to 462 in April 2026.
Monthly nonstop IAD–SFO traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
550 departures · 96,990 passengers
85.6%
Load
June 2025
549 departures · 98,081 passengers
90.6%
Load
July 2025
537 departures · 94,598 passengers
89.3%
Load
August 2025
509 departures · 90,617 passengers
87.0%
Load
September 2025
415 departures · 74,900 passengers
82.3%
Load
October 2025
495 departures · 89,500 passengers
84.1%
Load
November 2025
460 departures · 82,949 passengers
81.7%
Load
December 2025
490 departures · 82,744 passengers
84.2%
Load
January 2026
400 departures · 60,870 passengers
81.1%
Load
February 2026
380 departures · 57,753 passengers
80.9%
Load
March 2026
420 departures · 74,286 passengers
90.9%
Load
April 2026
462 departures · 79,428 passengers
87.6%
Load
By direction
The DOT files each direction separately — they rarely match.
IAD → SFO
85.8% full
231 departures · 38,873 passengers
SFO → IAD
89.4% full
231 departures · 40,555 passengers
Nonstop IAD–SFO 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
Frequently asked
How far is Dulles (IAD) from San Francisco (SFO)?
IAD to SFO is 2,413 miles (3,883 km / 2,097 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to SFO?
A nonstop covers the 2,413-mile great-circle distance in roughly 5h 38m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–SFO?
In April 2026, the Boeing 737 MAX 9 flew the largest share of departures (57.8%), followed by the Boeing 787-9 (24.9%).
What mileage do I earn flying IAD–SFO?
Distance-based programs credit off the 2,413-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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