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Cheap flights from Boston to Key West from $90

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 2/19. 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 from Boston to Key West

The cheapest plane tickets from Boston to Key West found on KAYAK recently.
8:32 pm - 8:03 amBOS-EYW
11h 31m1 stop
5:09 pm - 9:08 amEYW-BOS
15h 59m1 stop
Sat, Mar 1 - Mon, Mar 3
8:32 pm - 9:04 amBOS-EYW
12h 32m1 stop
5:09 pm - 9:08 amEYW-BOS
15h 59m1 stop
Sun, Feb 23 - Mon, Mar 3
11:45 am - 8:11 pmBOS-EYW
8h 26m1 stop
7:00 am - 2:49 pmEYW-BOS
7h 49m1 stop
$267Delta
Find Deal
Wed, Feb 19 - Wed, Feb 26
8:00 am - 11:54 amBOS-EYW
3h 54mnonstop
12:43 pm - 4:23 pmEYW-BOS
3h 40mnonstop
$277JetBlue
Find Deal
Mon, Feb 24 - Wed, Mar 5
8:00 am - 11:54 amBOS-EYW
3h 54mnonstop
12:43 pm - 4:23 pmEYW-BOS
3h 40mnonstop
$279JetBlue
Find Deal
Mon, Feb 24 - Tue, Mar 4
9:45 am - 5:21 pmBOS-EYW
7h 36m1 stop
6:14 pm - 12:58 amEYW-BOS
6h 44m1 stop
$297Delta
Find Deal
Mon, Feb 10 - Fri, Feb 14
5:18 am - 11:03 amBOS-EYW
5h 45m1 stop
2:40 pm - 6:16 pmEYW-BOS
3h 36mnonstop
$302American Airlines
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Mon, Feb 10 - Fri, Feb 14
9:00 am - 1:07 pmBOS-EYW
4h 07mnonstop
11:30 am - 11:36 pmEYW-BOS
12h 06m1 stop
$311American Airlines
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Sat, Feb 8 - Wed, Feb 12
6:00 am - 3:04 pmBOS-EYW
9h 04m1 stop
4:04 pm - 12:58 amEYW-BOS
8h 54m1 stop
$323United Airlines
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Sun, Apr 6 - Thu, Apr 10
5:45 am - 11:39 amBOS-EYW
5h 54m1 stop
12:12 pm - 7:15 pmEYW-BOS
7h 03m1 stop
$347United Airlines
Find Deal
Wed, Feb 12 - Wed, Feb 19
8:32 pm - 8:03 amBOS-EYW
11h 31m1 stop
Wed, Feb 19
5:20 pm - 7:03 amBOS-EYW
13h 43m1 stop
Sat, Mar 8
8:00 am - 11:54 amBOS-EYW
3h 54mnonstop
$109JetBlue
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Wed, Feb 19
11:45 am - 8:11 pmBOS-EYW
8h 26m1 stop
$119Delta
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Wed, Feb 19
5:35 am - 11:16 amBOS-EYW
5h 41m1 stop
$134United Airlines
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Tue, Feb 18
8:00 am - 11:56 amBOS-EYW
3h 56mnonstop
$139JetBlue
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Tue, Mar 18
10:45 am - 5:20 pmBOS-EYW
6h 35m1 stop
$149Delta
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Tue, Mar 18
12:30 pm - 6:56 pmBOS-EYW
6h 26m1 stop
$164American Airlines
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Thu, Feb 20
7:00 am - 3:23 pmBOS-EYW
8h 23m1 stop
$176American Airlines
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Mon, Feb 17
5:45 am - 2:50 pmBOS-EYW
9h 05m2 stops
$181United Airlines
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Sun, Feb 2
9:00 am - 1:07 pmBOS-EYW
4h 07mnonstop
12:55 pm - 4:29 pmEYW-BOS
3h 34mnonstop
$331American Airlines
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Sat, Jan 25 - Sat, Feb 1
12:30 pm - 6:37 pmBOS-EYW
6h 07m1 stop
12:55 pm - 4:29 pmEYW-BOS
3h 34mnonstop
$341American Airlines
Find Deal
Sat, Jan 25 - Sat, Feb 1
11:45 am - 8:11 pmBOS-EYW
8h 26m1 stop
7:00 am - 2:45 pmEYW-BOS
7h 45m1 stop
$351Delta
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Wed, Jan 22 - Wed, Jan 29
5:45 am - 2:49 pmBOS-EYW
9h 04m2 stops
1:50 pm - 11:59 pmEYW-BOS
10h 09m2 stops
$375United Airlines
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Fri, Jan 24 - Thu, Jan 30
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$379JetBlue
Find Deal
Sat, Jan 25 - Sun, Feb 2
5:45 am - 11:39 amBOS-EYW
5h 54m1 stop
1:50 pm - 11:59 pmEYW-BOS
10h 09m2 stops
$436United Airlines
Find Deal
Sun, Jan 26 - Thu, Jan 30
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$465JetBlue
Find Deal
Sun, Jan 26 - Sat, Feb 1
10:00 am - 5:21 pmBOS-EYW
7h 21m1 stop
1:45 pm - 7:26 pmEYW-BOS
5h 41m1 stop
$565Delta
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Sat, Jan 25 - Sun, Feb 2
12:15 pm - 5:02 pmBOS-EYW
28h 47m3 stops
5:52 pm - 4:35 pmEYW-BOS
22h 43m2 stops
Wed, Jan 22 - Sun, Jan 26
12:15 pm - 5:02 pmBOS-EYW
28h 47m3 stops
9:03 am - 5:59 pmEYW-BOS
8h 56m1 stop
Wed, Jan 22 - Sun, Jan 26
8:00 am - 11:52 amBOS-EYW
3h 52mnonstop
12:43 pm - 4:19 pmEYW-BOS
3h 36mnonstop
$277JetBlue
Find Deal
Mon, Mar 3 - Thu, Mar 6
8:00 am - 11:54 amBOS-EYW
3h 54mnonstop
12:43 pm - 4:23 pmEYW-BOS
3h 40mnonstop
$279JetBlue
Find Deal
Mon, Feb 24 - Tue, Mar 4
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
12:39 pm - 4:10 pmEYW-BOS
3h 31mnonstop
$292JetBlue
Find Deal
Sat, Feb 8 - Sat, Feb 15
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
12:39 pm - 4:10 pmEYW-BOS
3h 31mnonstop
$312JetBlue
Find Deal
Sat, Feb 8 - Sat, Feb 15
8:00 am - 11:56 amBOS-EYW
3h 56mnonstop
12:43 pm - 4:19 pmEYW-BOS
3h 36mnonstop
$352JetBlue
Find Deal
Mon, Mar 24 - Thu, Mar 27
8:20 am - 12:09 pmBOS-EYW
3h 49mnonstop
1:06 pm - 4:37 pmEYW-BOS
3h 31mnonstop
$387JetBlue
Find Deal
Wed, Apr 2 - Wed, Apr 9
8:50 am - 12:41 pmBOS-EYW
3h 51mnonstop
1:46 pm - 5:17 pmEYW-BOS
3h 31mnonstop
$427JetBlue
Find Deal
Mon, Feb 3 - Fri, Feb 7
8:00 am - 11:54 amBOS-EYW
3h 54mnonstop
12:39 pm - 4:19 pmEYW-BOS
3h 40mnonstop
$452JetBlue
Find Deal
Fri, Feb 14 - Wed, Feb 19
10:08 am - 2:10 pmBOS-EYW
4h 02mnonstop
1:15 pm - 4:48 pmEYW-BOS
3h 33mnonstop
$749American Airlines
Find Deal
Sat, Mar 22 - Sat, Mar 29
12:45 pm - 4:38 pmBOS-EYW
3h 53mnonstop
4:45 pm - 8:12 pmEYW-BOS
3h 27mnonstop
$839American Airlines
Find Deal
Sat, Apr 19 - Sat, Apr 26

American Airlines flights from Boston to Key West

Our best American Airlines deals on Boston to Key West flight tickets
American Airlines
Feb 10
BOS5:18 amBoston Logan Intl
5h 45m
1 stop
EYW11:03 amKey West
Feb 14
EYW2:40 pmKey West
3h 36m
BOS6:16 pmBoston Logan Intl
American Airlines
Feb 8
BOS9:00 amBoston Logan Intl
4h 07m
EYW1:07 pmKey West
Feb 12
EYW11:30 amKey West
12h 06m
1 stop
BOS11:36 pmBoston Logan Intl
American Airlines
Mar 5
BOS5:45 amBoston Logan Intl
9h 38m
1 stop
EYW3:23 pmKey West
Mar 12
EYW11:38 amKey West
11h 05m
1 stop
BOS10:43 pmBoston Logan Intl

United Airlines flights from Boston to Key West

Our best United Airlines deals on Boston to Key West flight tickets
United Airlines
Apr 6
BOS6:00 amBoston Logan Intl
9h 04m
1 stop
EYW3:04 pmKey West
Apr 10
EYW4:04 pmKey West
8h 54m
1 stop
BOS12:58 amBoston Logan Intl
United Airlines
Feb 12
BOS5:45 amBoston Logan Intl
5h 54m
1 stop
EYW11:39 amKey West
Feb 19
EYW12:12 pmKey West
7h 03m
1 stop
BOS7:15 pmBoston Logan Intl
United Airlines
Feb 19
BOS5:35 amBoston Logan Intl
5h 41m
1 stop
EYW11:16 amKey West
Feb 26
EYW10:55 amKey West
27h 41m
2 stops
BOS2:36 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 $345. If you are unable to visit Key West during the month of September, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around $348.

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 $370. 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 $470. 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?

You are more likely to see cheaper flights to Key West from Boston when booking 3 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $434 when searching 3 weeks out.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 $385 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.

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

As of January 2025, prices for Boston to Key West flights are approximately 23% more expensive 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

$90

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 $90. The best round-trip flight deal from Boston to Key West found on momondo in the last 72 hours is $202.
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
JetBluePriceFrom $214Free CancellationRating
7.4
3,201 reviews
Search JetBlue flights
DeltaPriceFrom $216Free CancellationRating
8.0
8,521 reviews
Search Delta flights
American AirlinesPriceFrom $242Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
  • JetBlue Flights From Boston to Key West

    JetBlue flight deals from Boston to Key West start from $214 round-trip. Over the 5 JetBlue flights for this route in a normal week, average airfare is usually $570 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

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.


An easier way to manage your Key West trip

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