Cancún (CUN) to San Francisco (SFO)
Flight time
≈ 5h 37m
Bearing
306° NW
Cancún (CUN) to San Francisco (SFO) is 2,405 miles (3,871 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies CUN–SFO
Filed traffic dataIn May 2026, United Airlines was the only carrier flying nonstop CUN–SFO; the Boeing 737 MAX 9 was the most common aircraft at 71% of departures; flights ran 88% full.
Departures
128
May 2026
Seats
22,912
both directions
Passengers
20,114
both directions
Load factor
87.8%
RPM ÷ ASM
Who flies CUN–SFO?
United Airlines was the only carrier to fly nonstop CUN–SFO in May 2026 (128 departures).
- UA
128 departures · 22,912 seats
Share of departures100.0%87.8%
Load
What plane flies CUN–SFO?
In May 2026, the Boeing 737 MAX 9 flew 71% of CUN–SFO departures — more than any other aircraft type.
- Boeing 737 MAX 9
91 departures · 89.2% load
71.1% - Boeing 737-900ER
37 departures · 84.3% load
28.9%
How has CUN–SFO traffic changed?
Nonstop CUN–SFO departures fell from 180 in June 2025 to 128 in May 2026.
Monthly nonstop CUN–SFO traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
180 departures · 28,748 passengers
89.2%
Load
July 2025
186 departures · 28,932 passengers
86.9%
Load
August 2025
138 departures · 19,528 passengers
79.0%
Load
September 2025
68 departures · 10,383 passengers
85.3%
Load
October 2025
81 departures · 12,980 passengers
89.5%
Load
November 2025
156 departures · 24,585 passengers
88.1%
Load
December 2025
218 departures · 33,613 passengers
87.4%
Load
January 2026
159 departures · 23,926 passengers
84.5%
Load
February 2026
118 departures · 18,734 passengers
88.7%
Load
March 2026
134 departures · 18,603 passengers
77.6%
Load
April 2026
121 departures · 18,628 passengers
86.7%
Load
May 2026
128 departures · 20,114 passengers
87.8%
Load
By direction
Each direction is filed separately — they rarely match.
CUN → SFO
89.2% full
64 departures · 10,218 passengers
SFO → CUN
86.4% full
64 departures · 9,896 passengers
Nonstop CUN–SFO 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
Cancún
MX
Cancún International Airport
Coordinates
21.04°N, 86.87°W
Hemisphere
N · W
Frequently asked
How far is Cancún (CUN) from San Francisco (SFO)?
CUN to SFO is 2,405 miles (3,871 km / 2,090 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CUN to SFO?
A nonstop covers the 2,405-mile great-circle distance in roughly 5h 37m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CUN–SFO?
In May 2026, the Boeing 737 MAX 9 flew the largest share of departures (71.1%), followed by the Boeing 737-900ER (28.9%).
What mileage do I earn flying CUN–SFO?
Distance-based programs credit off the 2,405-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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