Find cheap airlines flights from Boston to Key West

Choose from 1 carriers that fly from Boston to Key West, including Jetblue Airways, Enjoy the cheapest tickets on this route with Jetblue Airways.

Book direct flights from Boston to Key West: One way flights from $98, round trip flights from $234. Find flight deals for the next 3 months below.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Boston to Key West

The distance between Boston and Key West is about 2,214.25 km. It takes around 5 hours 17 minutes on average to fly from Boston to Key West. The most popular month to Key West is July. The off-season for travel is October.

Cheapest one-way flight price$88
Cheapest round-trip ticket price$234
Off-season for travelOctober
Peak season for travelJuly
Flight distance2,214.25 km
Average flight time5 hours 17 minutes
Popular airlineJetblue Airways

When is the cheapest time to fly from Boston to Key West?

The cheapest time for Boston to Key West flights: Dec 7 to Dec 14 — one way flight prices from $88.

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer direct flights from Boston to Key West?

    At the moment, you can catch a nonstop flight from Boston to Key West with the following airlines, including: Jetblue Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 5 hours 17 minutes to fly from Boston (BOS) to Key West (EYW).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Key West is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 5 flight per week flying from Boston to Key West. You can check the weekly schedule for popular airlines on this route below: Jetblue Airways: S/M/T/W/T/F/S -- B62063 (08:06)
  • The cheapest months to fly from Boston to Key West is October, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Boston to Key West on November 15, 2025 with Delta Air Lines, with prices starting at $213.
  • You can land at any one of the following hubs in Key West, with Logan International Airport to Key West International Airport (BOS-EYW) is by far the most common option on this route: Key West International Airport (EYW).
  • The time difference between Key West and Boston is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.