Logan International (BOS) to Cancun International (CUN).
| Departure | Return | Price |
|---|---|---|
| 05/31/2026 | 06/05/2026 | $356 |
| 05/31/2026 | 06/09/2026 | $356 |
| 06/01/2026 | 06/09/2026 | $356 |
| 06/01/2026 | 06/10/2026 | $356 |
| 06/02/2026 | 06/09/2026 | $356 |
| 06/02/2026 | 06/10/2026 | $356 |
| 06/02/2026 | 06/11/2026 | $356 |
| 06/03/2026 | 06/09/2026 | $356 |
| 06/03/2026 | 06/10/2026 | $356 |
| 06/03/2026 | 06/11/2026 | $356 |
Based on current fares, July is the cheapest month to fly from Boston to Cancun, with average fares around $364 round trip (as low as $356).
See the full month-by-month and day-of-week price analysis
Best Time to Fly BOS → CUNDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Boston to Cancun is July, with average round-trip fares around $364. Fares in July start as low as $356. The most expensive month is May, averaging $397.
A nonstop flight from Boston to Cancun takes approximately 4h.
The cheapest flight from Boston to Cancun currently starts at $356 round trip in economy class.
The average round-trip flight price from Boston to Cancun is $388 in economy class.
The distance is 1567 miles (2521 km). with a nonstop flight time of about 4h. The lowest fare currently available is $356 departing in May. The average round-trip fare is $388.
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