Cheap flights from Boston to Key West

Flights tailored to your budget

Selected dates may not give results due to COVID-19. We suggest you change the dates.
Multi-city Round trip One way
Round trip
One way
Multi-city
From
No results match your search criteria
To
No results match your search criteria
{{ weekDay }}
Dates
{{ panel.label }}
Looking for a one-way flight?

Flexible dates can save you money

Explore nearby dates to find lower fares

{{ fromDate | dateToLongNamedDate }}
?
Flexible dates
Depart {{ flexibleFromDateLabel }}
{{ option.label }}
?
Return {{ flexibleToDateLabel }}
{{ option.label }}
Passengers / Class
Number of passengers
Adults
{{ adults }}
Children
{{ children }}
Infants
{{ infants }}
Class
Economy
Available for Economy only
New Multi-city experience

Discover a new Multi-city search experience from Jetcost, designed to handle more complex itineraries. By continuing, you’ll be taken to a dedicated page powered by Kiwi.com.
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

Planning a flight from Boston to Key West?

Flight prices from Boston to Key West change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

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.

Customize your flight from Boston to Key West

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from Ryanair, Easyjet, British Airways, Expedia, eDreams, and more.

Other popular destinations

Thinking about United States? You might also consider: Boston, Los Angeles, Miami, New York City, Orlando.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.
Frequently Asked Questions

Frequently asked questions about flights from Boston to Key West.

How much does an airline ticket from Boston to Key West cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Boston to Key West.

How far is Boston from Key West?

Boston is about 1375 mi from Key West.

What are the airports in Key West?

Key West has one airport: Key West - International.

What are the airports in Boston?

Boston has one airport: Boston - Logan.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Boston, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Boston to Key West?

The best time to book a flight from Boston to Key West is 1 month in advance, while the worst time is 3 weeks in advance.

What is the cheapest month to fly from Boston to Key West?

This information is not available at the moment.

What is the most expensive month to fly from Boston to Key West?

This information is not available at the moment.

What is the best day of the week to fly from Boston to Key West?

This information is not available at the moment.