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Cheap flights from Boston to Key West from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Key West departing on 3/18. 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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Find the cheapest flights from Boston to Key West

Cheap round-trip flights

These are some of the best round-trip flight deals from Boston to Key West that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to Key West.

Cheap last minute flights

Planning a quick getaway from Boston to Key West? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Key West, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Boston to Key West

Find recent round-trip train or bus tickets from Boston to Key West.

All round-trip flight deals to Key West

The cheapest plane tickets to Key West found on KAYAK recently.
5:40 am - 11:38 amBOS-EYW
5h 58m1 stop
6:16 pm - 12:58 amEYW-BOS
6h 42m1 stop
$216Delta
Find Deal
Tue, Feb 4 - Tue, Feb 11
6:31 am - 12:47 pmBOS-EYW
6h 16m1 stop
1:50 pm - 11:59 pmEYW-BOS
10h 09m2 stops
$221United Airlines
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Wed, Jan 22 - Wed, Jan 29
5:45 am - 11:39 amBOS-EYW
5h 54m1 stop
1:50 pm - 8:46 pmEYW-BOS
6h 56m1 stop
$226United Airlines
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Sun, Jan 12 - Wed, Jan 22
6:00 am - 12:47 pmBOS-EYW
6h 47m1 stop
1:50 pm - 11:59 pmEYW-BOS
10h 09m2 stops
$231United Airlines
Find Deal
Sun, Jan 12 - Wed, Jan 22
8:27 pm - 9:04 amBOS-EYW
12h 37m1 stop
5:12 pm - 9:08 amEYW-BOS
15h 56m1 stop
Thu, Feb 20 - Mon, Feb 24
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
12:43 pm - 4:14 pmEYW-BOS
3h 31mnonstop
$247JetBlue
Find Deal
Mon, Feb 10 - Fri, Feb 14
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$248JetBlue
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Sun, Jan 19 - Sat, Jan 25
9:00 am - 1:07 pmBOS-EYW
4h 07mnonstop
4:23 pm - 10:40 pmEYW-BOS
6h 17m1 stop
$252American Airlines
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Sat, Jan 11 - Tue, Jan 14
10:49 am - 6:51 pmBOS-EYW
8h 02m2 stops
12:55 pm - 4:29 pmEYW-BOS
3h 34mnonstop
$261American Airlines
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Wed, Jan 22 - Sat, Jan 25
10:44 am - 9:04 amBOS-EYW
22h 20m2 stops
5:12 pm - 9:08 amEYW-BOS
15h 56m1 stop
Thu, Feb 20 - Mon, Feb 24
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
$99JetBlue
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Tue, Mar 18
5:45 am - 11:49 amBOS-EYW
6h 04m1 stop
$108Delta
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Tue, Mar 18
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
$109JetBlue
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Mon, Jan 20
5:40 am - 11:27 amBOS-EYW
5h 47m1 stop
$118Delta
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Sun, Jan 19
6:00 am - 2:20 pmBOS-EYW
8h 20m1 stop
Thu, Jan 9
5:45 am - 11:39 amBOS-EYW
5h 54m1 stop
$148United Airlines
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Wed, Jan 15
5:45 am - 2:49 pmBOS-EYW
9h 04m2 stops
$153United Airlines
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Wed, Jan 8
1:15 pm - 5:16 pmBOS-EYW
4h 01mnonstop
$154American Airlines
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Fri, Jan 3
8:57 am - 8:03 amBOS-EYW
23h 06m2 stops
$156Allegiant Air
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Sat, Mar 1
9:09 am - 5:11 pmBOS-EYW
8h 02m1 stop
$163American Airlines
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Fri, Jan 3
6:03 am - 1:12 pmBOS-EYW
7h 09m1 stop
5:55 pm - 9:29 pmEYW-BOS
3h 34mnonstop
$341American Airlines
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Thu, Dec 19 - Thu, Dec 26
6:03 am - 1:12 pmBOS-EYW
7h 09m1 stop
3:57 pm - 11:52 pmEYW-BOS
7h 55m1 stop
$350American Airlines
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Thu, Dec 19 - Thu, Dec 26
8:30 pm - 9:41 amBOS-EYW
13h 11m1 stop
5:46 pm - 11:25 amEYW-BOS
17h 39m2 stops
Mon, Dec 23 - Tue, Dec 31
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
12:37 pm - 4:08 pmEYW-BOS
3h 31mnonstop
$508JetBlue
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Sun, Dec 22 - Thu, Dec 26
3:23 pm - 4:56 pmBOS-EYW
25h 33m3 stops
8:53 am - 5:26 pmEYW-BOS
8h 33m1 stop
Mon, Dec 23 - Tue, Dec 31
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
10:55 am - 7:34 pmEYW-BOS
8h 39m1 stop
$548JetBlue
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Fri, Dec 20 - Sat, Dec 28
6:10 am - 1:14 pmBOS-EYW
7h 04m1 stop
10:55 am - 10:00 pmEYW-BOS
11h 05m2 stops
$567United Airlines
Find Deal
Thu, Dec 19 - Thu, Dec 26
6:02 am - 3:13 pmBOS-EYW
9h 11m1 stop
4:19 pm - 12:54 amEYW-BOS
8h 35m1 stop
$612United Airlines
Find Deal
Mon, Dec 23 - Sun, Dec 29
5:35 am - 5:07 pmBOS-EYW
11h 32m2 stops
7:25 am - 3:17 pmEYW-BOS
7h 52m1 stop
$1,218Delta
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Mon, Dec 23 - Mon, Dec 30
5:35 am - 5:07 pmBOS-EYW
11h 32m2 stops
11:47 am - 11:51 pmEYW-BOS
12h 04m2 stops
$2,126Delta
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Mon, Dec 23 - Mon, Dec 30
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
12:43 pm - 4:14 pmEYW-BOS
3h 31mnonstop
$247JetBlue
Find Deal
Mon, Feb 10 - Fri, Feb 14
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$248JetBlue
Find Deal
Sun, Jan 19 - Sat, Jan 25
9:00 am - 1:07 pmBOS-EYW
4h 07mnonstop
12:55 pm - 4:29 pmEYW-BOS
3h 34mnonstop
$277American Airlines
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Sat, Jan 18 - Sat, Jan 25
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$282JetBlue
Find Deal
Sun, Jan 26 - Sat, Feb 1
9:00 am - 1:07 pmBOS-EYW
4h 07mnonstop
1:15 pm - 4:51 pmEYW-BOS
3h 36mnonstop
$288American Airlines
Find Deal
Sat, Feb 8 - Sat, Feb 15
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
12:43 pm - 4:14 pmEYW-BOS
3h 31mnonstop
$312JetBlue
Find Deal
Tue, Mar 11 - Tue, Mar 18
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$322JetBlue
Find Deal
Mon, Feb 3 - Fri, Feb 7
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$327JetBlue
Find Deal
Sun, Feb 2 - Sat, Feb 8
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$367JetBlue
Find Deal
Tue, Dec 31 - Fri, Jan 31
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$387JetBlue
Find Deal
Sat, Feb 1 - Sat, Feb 8

American Airlines flights from Boston to Key West

Our best American Airlines deals on Boston to Key West flight tickets
American Airlines
Jan 11
BOS9:00 amBoston Logan Intl
4h 07m
EYW1:07 pmKey West
Jan 14
EYW4:23 pmKey West
6h 17m
1 stop
BOS10:40 pmBoston Logan Intl
American Airlines
Jan 22
BOS10:49 amBoston Logan Intl
8h 02m
2 stops
EYW6:51 pmKey West
Jan 25
EYW12:55 pmKey West
3h 34m
BOS4:29 pmBoston Logan Intl
American Airlines
Jan 19
BOS8:00 amBoston Logan Intl
6h 04m
1 stop
EYW2:04 pmKey West
Jan 25
EYW12:55 pmKey West
3h 34m
BOS4:29 pmBoston Logan Intl

JetBlue flights from Boston to Key West

Our best JetBlue deals on Boston to Key West flight tickets
JetBlue
Feb 10
BOS8:50 amBoston Logan Intl
3h 51m
EYW12:41 pmKey West
Feb 14
EYW12:43 pmKey West
3h 31m
BOS4:14 pmBoston Logan Intl
JetBlue
Jan 19
BOS8:50 amBoston Logan Intl
3h 51m
EYW12:41 pmKey West
Jan 25
EYW1:46 pmKey West
3h 31m
BOS5:17 pmBoston Logan Intl
JetBlue
Jan 26
BOS8:50 amBoston Logan Intl
3h 51m
EYW12:41 pmKey West
Feb 1
EYW1:46 pmKey West
3h 31m
BOS5:17 pmBoston Logan Intl

See travel insights to Key West from

How to get the cheapest flight ticket from Boston to Key West

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 Key West?

In general, September is the cheapest month to fly from Boston to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you are unable to visit Key West during the month of September, then departing from Boston during the month August is also very affordable. Most momondo users find prices during this month for around $350.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Boston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $397. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Key West for around $538.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Boston to Key West at noon for as low as $352. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the afternoon, with an average ticket price of $461. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Boston Logan Intl to Key West flight route?

Fly from Boston Logan Intl to Key West for the best Boston Logan Intl - Key West flight prices

How far in advance should I book a flight to Key West?

Most flyers found that booking tickets 32 days in advance of their planned departure date is the best time to get cheap flights to Key West. During this timeframe, flight prices are around $433. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Boston for as low as $311 on momondo.

What cabin class options are available on Boston Logan Intl to Key West flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Key West flights?

You could potentially save up to 9% on your flight if you consider stops on a Boston to Key West flight.

How have Boston to Key West flight prices changed over time?

As of December 2024, prices for Boston to Key West flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Key West

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

Cheap Boston to Key West (BOS to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Key West

Best Price Found

$99

Fastest flight time

3h 49m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Boston in the past 72 hours is $99. The best round-trip flight deal from Boston to Key West found on momondo in the last 72 hours is $216.
The fastest flight from Boston to Key West takes 3h 49m
Direct flights go from Boston to Key West every day.
There is 1 airport near Key West: Key West (EYW)

  • How far is Boston Logan Intl to Key West by plane?

    Key West is 1373.6 mi away from Boston Logan Intl. Flights usually cover this in 3h 49m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Key West Airport?

    Prices for flights from Boston Logan Intl Airport to Key West Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Key West Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Key West Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West 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 Key West 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 Boston to Key West?

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


Best airlines flying from Boston to Key West

Compare and see reviews for airlines that fly from Boston to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
8.0
8,604 reviews
Search Delta flights
JetBluePriceFrom $219Free CancellationRating
7.4
3,279 reviews
Search JetBlue flights
American AirlinesPriceFrom $238Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Key West?

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 Boston to Key West for you.

Can I find flights from Boston to Key West with flexible booking policies on momondo?

momondo does allow users to show only those flights to Key West from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Key West?

momondo helps you find the best flight between Boston and Key West by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Key West right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Boston and alert you when they change.


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