Boston (BOS) to Cancún (CUN)
Flight time
≈ 4h 16m
Bearing
217° SW
Boston (BOS) to Cancún (CUN) is 1,737 miles (2,795 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–CUN
Filed traffic dataIn May 2026, JetBlue Airways operated the most departures, one of 2 carriers flying nonstop BOS–CUN; the Airbus A321 was the most common aircraft at 47% of departures; flights ran 80% full.
Departures
136
May 2026
Seats
24,616
both directions
Passengers
19,799
both directions
Load factor
80.4%
RPM ÷ ASM
Who flies BOS–CUN?
JetBlue Airways operated the most nonstop BOS–CUN departures in May 2026 (74), one of 2 carriers on the route.
- B6
74 departures · 14,496 seats
Share of departures54.4%78.5%
Load
- DL
62 departures · 10,120 seats
Share of departures45.6%83.3%
Load
What plane flies BOS–CUN?
In May 2026, the Airbus A321 flew 47% of BOS–CUN departures — more than any other aircraft type.
- Airbus A321
64 departures · 78.9% load
47.1% - Boeing 737-800
52 departures · 83.3% load
38.2% - Boeing 737-900ER
10 departures · 83.3% load
7.3% - Airbus A320
8 departures · 72.6% load
5.9% - Airbus A321neo
2 departures · 82.3% load
1.5%
How has BOS–CUN traffic changed?
Nonstop BOS–CUN departures rose from 127 in June 2025 to 136 in May 2026.
Monthly nonstop BOS–CUN traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
127 departures · 19,950 passengers
87.5%
Load
July 2025
133 departures · 21,556 passengers
92.5%
Load
August 2025
126 departures · 21,018 passengers
93.6%
Load
September 2025
55 departures · 8,125 passengers
75.9%
Load
October 2025
70 departures · 12,230 passengers
89.4%
Load
November 2025
136 departures · 21,842 passengers
84.9%
Load
December 2025
226 departures · 33,823 passengers
79.5%
Load
January 2026
182 departures · 30,232 passengers
86.8%
Load
February 2026
165 departures · 27,520 passengers
89.6%
Load
March 2026
197 departures · 29,943 passengers
80.2%
Load
April 2026
203 departures · 30,519 passengers
80.5%
Load
May 2026
136 departures · 19,799 passengers
80.4%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → CUN
74.9% full
68 departures · 9,215 passengers
CUN → BOS
86.0% full
68 departures · 10,584 passengers
Nonstop BOS–CUN 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 Boston (BOS) from Cancún (CUN)?
BOS to CUN is 1,737 miles (2,795 km / 1,509 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to CUN?
A nonstop covers the 1,737-mile great-circle distance in roughly 4h 16m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–CUN?
In May 2026, the Airbus A321 flew the largest share of departures (47.1%), followed by the Boeing 737-800 (38.2%).
What mileage do I earn flying BOS–CUN?
Distance-based programs credit off the 1,737-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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