Cheap flights from Key West to Boston from $134
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Boston departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Key West to Boston
Cheap round-trip flights
Cheap one-way flights
American Airlines flights from Key West to Boston
Our best American Airlines deals on Key West to Boston flight tickets
United Airlines flights from Key West to Boston
Our best United Airlines deals on Key West to Boston flight tickets
See travel insights to Boston from
How to get the cheapest flight ticket from Key West to Boston
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Boston?
In general, September is the cheapest month to fly from Key West to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $300. If you aren’t able to travel during the month of September, then book flights to Boston from Key West during November instead. Flights to Boston in November, while not as cheap as those in September, still average around $320.
What is the cheapest day to depart on your flight to Boston?
The cheapest day to depart from Key West to Boston is on a Saturday when prices can be found for as low as $289. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $681.
What is the cheapest time of day to depart on your flight to Boston?
According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Key West to Boston in the afternoon for as low as $338. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $508 per ticket.
What is the cheapest Key West to Boston Logan Intl flight route?
Fly from Key West to Boston Logan Intl for the best Key West - Boston Logan Intl flight prices
What cabin class options are available on Key West to Boston Logan Intl flights?
There are 1 cabin classes available to choose from on Key West to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How have Key West to Boston flight prices changed over time?
As of May 2025, prices for Key West to Boston flights are approximately 23% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Key West to Boston Logan Intl?
American Airlines, Delta, and United Airlines are the most popular carriers operating from Key West to Boston Logan Intl
What airlines fly to Boston?
American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Boston from Key West according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 3 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.
When to book flights from Key West to Boston
Cheap Key West to Boston (EYW to BOS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Key West to Boston
How far is Key West to Boston Logan Intl by plane?
Boston Logan Intl is 1373.6 mi away from Key West. By plane, this route typically takes 4h 50m.
When did momondo last update prices for flights from Key West Airport to Boston Logan Intl Airport?
Prices for flights from Key West Airport to Boston Logan Intl Airport refresh daily.
How many operators does momondo search for flights from Key West Airport to Boston Logan Intl Airport?
As of May 2025, there are 3 operators available to choose from for flights from Key West Airport to Boston Logan Intl Airport.
How old do you have to be to fly from Key West Airport to Boston Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Key West Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Key West to Boston?
Based on momondo bookings for flights between Key West and Boston, the leading plane model is Airbus A220-300, making up 60.00% of the total bookings. Other popular models include Embraer 175 with 16.00%, Airbus A319 with 8.00%, and Airbus A318/A319/A320/A321 with 4.00%.
What is the most popular airline from Key West to Boston?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Key West to Boston is American Airlines (59% of total bookings). The next most popular airlines are JetBlue (34%) and Delta (7%).
Best airlines flying from Key West to Boston
Compare and see reviews for airlines that fly from Key West to Boston with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,944 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Key West to Boston?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Key West to Boston for you.
Can I find flights from Key West to Boston with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Key West to Boston flights to just show those with flexible booking policies.
How can momondo help me find flights from Key West to Boston?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Boston.
I’m not ready to book a flight from Key West to Boston right now. Can momondo alert me if prices change?
Price alerts on flights to Boston from Key West are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.