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Cheap flights from Key West to Boston from $166

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 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Key West to Boston.
American Airlines Logo
3:56 pm - 9:48 pmEYW-BOS
5h 52m1 stop
American Airlines Logo
12:59 pm - 6:45 pmBOS-EYW
5h 46m1 stop
$347American Airlines
Find Deal
Fri, Apr 18 - Tue, Apr 22
United Airlines Logo
4:04 pm - 12:58 amEYW-BOS
8h 54m1 stop
United Airlines Logo
9:45 am - 6:05 pmBOS-EYW
32h 20m2 stops
$379United Airlines
Find Deal
Thu, Apr 24 - Mon, Apr 28
Delta Logo
7:00 am - 12:34 pmEYW-BOS
5h 34m1 stop
Delta Logo
1:45 pm - 8:30 pmBOS-EYW
6h 45m1 stop
$408Delta
Find Deal
Thu, Apr 24 - Mon, Apr 28
Allegiant Air Logo
5:10 pm - 8:06 amEYW-BOS
14h 56m2 stops
Allegiant Air Logo
12:26 pm - 3:33 pmBOS-EYW
27h 07m2 stops
$415Allegiant Air
Find Deal
Fri, Apr 18 - Tue, Apr 22
United Airlines Logo
8:45 am - 9:49 pmEYW-BOS
13h 04m2 stops
United Airlines Logo
9:45 am - 6:05 pmBOS-EYW
32h 20m2 stops
$417United Airlines
Find Deal
Thu, Apr 24 - Mon, Apr 28
JetBlue Logo
1:00 pm - 9:14 pmEYW-BOS
8h 14m1 stop
JetBlue Logo
8:20 am - 12:09 pmBOS-EYW
3h 49mnonstop
$430JetBlue
Find Deal
Fri, Apr 18 - Tue, Apr 22
United Airlines Logo
8:45 am - 11:59 pmEYW-BOS
15h 14m2 stops
United Airlines Logo
5:30 am - 6:05 pmBOS-EYW
12h 35m2 stops
$437United Airlines
Find Deal
Tue, Apr 29 - Thu, May 1
American Airlines Logo
2:17 pm - 9:33 pmEYW-BOS
7h 16m1 stop
American Airlines Logo
12:59 pm - 6:45 pmBOS-EYW
5h 46m1 stop
$559American Airlines
Find Deal
Tue, Apr 29 - Thu, May 1
JetBlue Logo
1:04 pm - 4:43 pmEYW-BOS
3h 39mnonstop
JetBlue Logo
8:20 am - 12:09 pmBOS-EYW
3h 49mnonstop
$859JetBlue
Find Deal
Fri, Apr 18 - Tue, Apr 22
Delta Logo
1:35 pm - 8:26 pmEYW-BOS
6h 51m1 stop
Delta Logo
9:00 am - 8:30 pmBOS-EYW
11h 30m2 stops
$961Delta
Find Deal
Tue, Apr 29 - Thu, May 1

American Airlines flights from Key West to Boston

Our best American Airlines deals on Key West to Boston flight tickets
American Airlines
Apr 18
EYW3:56 pmKey West
5h 52m
1 stop
BOS9:48 pmBoston Logan Intl
Apr 22
BOS12:59 pmBoston Logan Intl
5h 46m
1 stop
EYW6:45 pmKey West
American Airlines
Apr 29
EYW2:17 pmKey West
7h 16m
1 stop
BOS9:33 pmBoston Logan Intl
May 1
BOS12:59 pmBoston Logan Intl
5h 46m
1 stop
EYW6:45 pmKey West

United Airlines flights from Key West to Boston

Our best United Airlines deals on Key West to Boston flight tickets
United Airlines
Apr 24
EYW4:04 pmKey West
8h 54m
1 stop
BOS12:58 amBoston Logan Intl
Apr 28
BOS9:45 amBoston Logan Intl
32h 20m
2 stops
EYW6:05 pmKey West
United Airlines
Apr 24
EYW8:45 amKey West
13h 04m
2 stops
BOS9:49 pmBoston Logan Intl
Apr 28
BOS9:45 amBoston Logan Intl
32h 20m
2 stops
EYW6:05 pmKey West
United Airlines
Apr 29
EYW8:45 amKey West
15h 14m
2 stops
BOS11:59 pmBoston Logan Intl
May 1
BOS5:30 amBoston Logan Intl
12h 35m
2 stops
EYW6:05 pmKey West

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 typical price of a round-trip flight between Key West and Boston?

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 $537 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 April 2025, prices for Key West to Boston flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Key West to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$166

Fastest flight time

3h 39m

Direct flights

Mon, Fri and Sat

Airports in Boston

1 airport
The best one-way flight to Boston from Key West in the past 72 hours is $166. The best round-trip flight deal from Key West to Boston found on momondo in the last 72 hours is $347.
The fastest flight from Key West to Boston takes 3h 39m
Direct flights go from Key West to Boston on Monday, Friday and Saturday. The only airline offering direct flights is JetBlue.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • 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 3h 39m.

  • 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?

  • 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?

  • What is the most popular airline from Key West to Boston?


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
DeltaPriceFrom $216Free CancellationRating
8.0
7,897 reviews
Search Delta flights
JetBluePriceFrom $236Free CancellationRating
7.3
2,920 reviews
Search JetBlue flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • JetBlue Flights From Key West to Boston

    JetBlue is one of the most popular airlines flying from Key West to Boston, operating 4 flights/week on average for this route. A good JetBlue flight deal for Key West to Boston starts from $236 round-trip, up to an average price of $512. Our users have rated JetBlue at 7.3/10.


Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Hampton
Old Orchard Beach
Nashua
Cambridge
Plymouth
Brockton
York Beach
Laconia
Concord
Everett
Warwick
Middletown
Wells
Revere
Kennebunkport
Gloucester
Narragansett

Why 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.


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