Find out what a flight from Boston to Key West might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Boston and Key West.

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Is there more than one airport in Boston or Key West?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Boston: Only Boston - Logan is currently operational.
• Airports in Key West: Key West - International is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near Key West as well.

Adjust your flight filters for Boston – Key West

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Other popular destinations

Planning a trip to United States? These cities are popular too: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.