What are the cheapest airlines flying from Boston to Key West round-trip?

Currently priced at $332, Delta will fly you from Boston to Key West and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Allegiant Air - these airlines can fly you to your destination from $337 and $341, respectively. Delta is 22% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Boston to Key West one-way?

The cheapest airlines for a one-way flight from Boston to Key West are JetBlue ($159), Allegiant Air ($168), and Delta ($169).

What is the cheapest day to fly from Boston to Key West?

Travelers seeking maximum savings on their Boston to Key West flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Boston to Key West?

The cheapest flight price from Boston to Key West is $138. On average you can expect to pay $405. The most popular route, (Boston Logan Intl - Key West), can usually be booked for $221.

What are the most reliable airlines from Boston to Key West?

No one likes to see their flight delayed. When booking a flight from Boston to Key West consider choosing JetBlue (74%), TAP AIR PORTUGAL (70%) or American Airlines (65%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Boston to Key West?

The most popular airlines flying from Boston to Key West are American Airlines, JetBlue and Delta. Something to consider prior to booking your flight.

Where are the most common layover locations when flying from Boston to Key West?

Flights departing from Boston and landing in Key West layover in Charlotte most frequently. Miami sees the second most layovers for non-direct flights flying from Boston to Key West.

Where are the least popular layover locations for Boston to Key West flights?

Boston to Key West flights have a layover in Philadelphia the least frequently.

What are some popular things to do or see while on a layover in Charlotte?

Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center are currently the most popular points of interest in Charlotte at the moment. Those on a layover in Charlotte interested in visiting Carowind, Mint Museum Uptown, or North Carolina Blumenthal Performing Arts Center can do so by traveling 8.2 mi, 5.4 mi, and 5.8 mi, respectively from Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $49 per day.

What are some popular points of interest to see during a layover in Miami?

The majority of Miami visitors spend their time at Wynwood Art District, Bayside Marketplace, and Bayfront Park. Wynwood Art District, Bayside Marketplace and Bayfront Park are located about 5.5 mi, 6.4 mi, and 6.4 mi, respectively from Miami if you are interested in checking them out. Those looking to explore during their layover in Miami can rent a car from Miami for about $24 per day.

What is the cheapest day to fly round-trip from Boston to Key West?

Users have found that flying from Boston to Key West on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 15% on flights from Boston to Key West compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $335. For sooner than that we have options available in the next 3 days from $400.

What is the cheapest month to fly from Boston to Key West?

Flights from Boston to Key West lean towards being more expensive in April. Prices are generally better when you fly from Boston to Key West in September, with the cheapest ticket starting at $216.

Most accurate provider : When it comes to deals on Boston-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Key West flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Boston-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from Boston to Key West?

If you book a flight from Boston to Key West, you will be flying from Logan Intl to Key West. Flights to Key West (EYW) from Boston Logan Intl (BOS) take 3h 35m for a nonstop flight. There is 1 flight from Logan Intl to Key West per day from 5 airlines.

Can I find deals for flights from Boston to Key West that include hotel bookings?

Yes. In addition to deals on Boston to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Key West?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Key West.

Can I find deals for business class flights from Boston to Key West?

Yes. Cheapflights offers flight deals from Boston to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$105+ Flights from Boston to Key West

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Boston Logan Intl to Key West are usually found in September or January, booked 49 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap flight deals from Boston to Key West

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$331 (Mytrip)
One-way from	$105 (Mytrip)
Popular in	April
Cheapest in	September
Average price	$597
Good round-trip deal	$417 or less
Good one-way deal	$143 or less

Provider with most accurate pricing for Boston Logan Intl-Key West flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Key West flights.

Search Deals

From Boston Logan Intl to Key West

Search Deals

One-way flight from Boston Logan Intl to Key West

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Boston Logan Intl to Key West.

Search Deals

Price to beat on a one-way flight from Boston Logan Intl to Key West.

Search Deals

Find flight deals from Boston to Key West

Cheapest flights from Boston to Key West
Explore the most affordable flight options available from Boston to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Thu 5/83:49 pmBOS - EYW

2 stops24h 27mMultiple Airlines

Sun 5/118:53 amEYW - BOS

3 stops37h 58mMultiple Airlines

Deal found 4/3

$331

Mon 4/286:00 amBOS - EYW

1 stop6h 55mDelta

Wed 5/76:25 pmEYW - BOS

1 stop6h 08mDelta

Deal found 4/3

$332

Sat 4/1211:55 amBOS - EYW

2 stops20h 18mAllegiant Air

Thu 4/174:24 pmEYW - BOS

1 stop16h 12mAllegiant Air

Deal found 4/3

$333

Mon 4/2811:13 amBOS - EYW

1 stop6h 16mAmerican Airlines

Thu 5/13:06 pmEYW - BOS

1 stop6h 18mAmerican Airlines

Deal found 4/4

$337

Tue 5/275:30 amBOS - EYW

2 stops12h 35mUnited Airlines

Mon 6/26:45 pmEYW - BOS

2 stops22h 56mUnited Airlines

Deal found 4/4

$363

Mon 4/288:20 amBOS - EYW

Nonstop3h 49mJetBlue

Wed 5/78:45 amEYW - BOS

1 stop7h 20mJetBlue

Deal found 4/4

$418

Best flights from Boston to Key West
Discover carefully curated flight deals from Boston to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 4, 2025.

Thu 5/83:49 pmBOS - EYW

2 stops24h 27mMultiple Airlines

Sun 5/118:53 amEYW - BOS

3 stops37h 58mMultiple Airlines

Deal found 4/3

$331

Mon 4/286:00 amBOS - EYW

1 stop6h 55mDelta

Wed 5/76:25 pmEYW - BOS

1 stop6h 08mDelta

Deal found 4/3

$332

Mon 4/2811:13 amBOS - EYW

1 stop6h 16mAmerican Airlines

Thu 5/13:06 pmEYW - BOS

1 stop6h 18mAmerican Airlines

Deal found 4/4

$337

Sun 4/208:56 amBOS - EYW

1 stop6h 38mAllegiant Air

Thu 4/244:24 pmEYW - BOS

1 stop16h 12mAllegiant Air

Deal found 4/3

$341

Tue 5/275:30 amBOS - EYW

2 stops12h 35mUnited Airlines

Mon 6/26:45 pmEYW - BOS

2 stops22h 56mUnited Airlines

Deal found 4/4

$363

Mon 4/288:20 amBOS - EYW

Nonstop3h 49mJetBlue

Wed 5/78:45 amEYW - BOS

1 stop7h 20mJetBlue

Deal found 4/3

$418

Last-minute flights from Boston to Key West
Discover last-minute flight deals from Boston to Key West. Data last updated April 4, 2025 and is based on user searches.

Fri 4/118:20 amBOS - EYW

Nonstop3h 49mJetBlue

Fri 4/182:45 pmEYW - BOS

1 stop6h 29mJetBlue

Deal found 4/3

$453

Sat 4/1211:55 amBOS - EYW

2 stops20h 18mAllegiant Air

Thu 4/174:24 pmEYW - BOS

1 stop16h 12mAllegiant Air

Deal found 4/3

$333

Sat 4/121:58 pmBOS - EYW

1 stop6h 13mAmerican Airlines

Thu 4/1712:59 pmEYW - BOS

1 stop6h 27mAmerican Airlines

Deal found 4/3

$370

Sun 4/139:39 pmBOS - EYW

2 stops18h 41mMultiple Airlines

Wed 4/165:23 pmEYW - BOS

2 stops25h 20mMultiple Airlines

Deal found 4/3

$349

Sun 4/136:00 amBOS - EYW

1 stop9h 04mUnited Airlines

Wed 4/166:45 pmEYW - BOS

2 stops24h 37mUnited Airlines

Deal found 4/3

$474

Mon 4/286:00 amBOS - EYW

1 stop6h 55mDelta

Wed 5/76:25 pmEYW - BOS

1 stop6h 08mDelta

Deal found 4/3

$332

Mon 4/2811:13 amBOS - EYW

1 stop6h 16mAmerican Airlines

Thu 5/13:06 pmEYW - BOS

1 stop6h 18mAmerican Airlines

Deal found 4/4

$337

Mon 4/288:20 amBOS - EYW

Nonstop3h 49mJetBlue

Wed 5/78:45 amEYW - BOS

1 stop7h 20mJetBlue

Deal found 4/4

$418

Thu 5/83:49 pmBOS - EYW

2 stops24h 27mMultiple Airlines

Sun 5/118:53 amEYW - BOS

3 stops37h 58mMultiple Airlines

Deal found 4/3

$331

Tue 5/275:30 amBOS - EYW

2 stops12h 35mUnited Airlines

Mon 6/26:45 pmEYW - BOS

2 stops22h 56mUnited Airlines

Deal found 4/4

$363

One-way flights from Boston to Key West
Search for one-way flight options from Boston to Key West. Find affordable one-way fares based on user searches. Data last updated April 4, 2025.

Sat 4/269:04 pmBOS - EYW

1 stop12h 29mMultiple Airlines

Deal found 4/3

$105

Fri 4/258:20 amBOS - EYW

Nonstop3h 49mJetBlue

Deal found 4/3

$159

Sun 4/208:56 amBOS - EYW

1 stop6h 38mAllegiant Air

Deal found 4/3

$168

Fri 4/253:00 pmBOS - EYW

1 stop5h 30mDelta

Deal found 4/3

$169

Thu 6/51:08 pmBOS - EYW

1 stop5h 54mAmerican Airlines

Deal found 4/3

$184

Wed 5/1411:07 amBOS - EYW

2 stops30h 58mUnited Airlines

Deal found 4/4

$202

Thu 7/36:00 amBOS - EYW

3 stops31h 48mAlaska Airlines

Deal found 4/2

$634

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Thu 5/8

3:49 pm-4:16 pm

2 stops24h 27m

Key West

Sun 5/11

8:53 am-10:51 pm

3 stops37h 58m

$331

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Mon 4/28

6:00 am-12:55 pm

1 stop6h 55m

Key West

Wed 5/7

6:25 pm-12:33 am

1 stop6h 08m

$332

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Sat 4/12

11:55 am-8:13 am

2 stops20h 18m

Key West

Thu 4/17

4:24 pm-8:36 am

1 stop16h 12m

$333

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Mon 4/28

11:13 am-5:29 pm

1 stop6h 16m

Key West

Thu 5/1

3:06 pm-9:24 pm

1 stop6h 18m

$337

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Tue 5/27

5:30 am-6:05 pm

2 stops12h 35m

Key West

Mon 6/2

6:45 pm-5:41 pm

2 stops22h 56m

$363

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Mon 4/28

8:20 am-12:09 pm

Nonstop3h 49m

Key West

Wed 5/7

8:45 am-4:05 pm

1 stop7h 20m

$418

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Sat 4/26

9:04 pm-9:33 am

1 stop12h 29m

$105

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Fri 4/25

8:20 am-12:09 pm

Nonstop3h 49m

$159

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Sun 4/20

8:56 am-3:34 pm

1 stop6h 38m

$168

BostonKey West

BOS - EYW

BOSEYW

Boston Logan Intl

Fri 4/25

3:00 pm-8:30 pm

1 stop5h 30m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 13 results

Compare providers for flights from Boston to Key West

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Key West in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Boston-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Key West flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Boston-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Boston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Key West

How far ahead should I book a flight from Boston to Key West?

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Key West. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Key West?

Currently, August is the cheapest month in which you can book a flight from Boston to Key West (average of $328). Flying from Boston to Key West in March is currently the most expensive (average of $493). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to EYW?

It’s typically best to fly out from Boston to Key West at noon. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Boston to Key West

The most flights from BOS to EYW are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Key West by month

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Key West

Read through reviews of airlines operating flights from Boston to Key West, such as Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,839 reviews

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,900 reviews

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,618 reviews

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

JetBlue

7.3

Good

2,920 reviews

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Allegiant Air

7.3

Good

732 reviews

Alaska Airlines

8.0

Very good

9,839 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airports do I use to fly from Boston to Key West?
If you book a flight from Boston to Key West, you will be flying from Logan Intl to Key West. Flights to Key West (EYW) from Boston Logan Intl (BOS) take 3h 35m for a nonstop flight. There is 1 flight from Logan Intl to Key West per day from 5 airlines.
What are the cheapest airlines flying from Boston to Key West round-trip?
Currently priced at $332, Delta will fly you from Boston to Key West and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Allegiant Air - these airlines can fly you to your destination from $337 and $341, respectively. Delta is 22% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Boston to Key West one-way?
The cheapest airlines for a one-way flight from Boston to Key West are JetBlue ($159), Allegiant Air ($168), and Delta ($169).
What are the most reliable airlines from Boston to Key West?
No one likes to see their flight delayed. When booking a flight from Boston to Key West consider choosing JetBlue (74%), TAP AIR PORTUGAL (70%) or American Airlines (65%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Boston to Key West?
The cheapest flight price from Boston to Key West is $138. On average you can expect to pay $405. The most popular route, (Boston Logan Intl - Key West), can usually be booked for $221.
Where are the most common layover locations when flying from Boston to Key West?
Flights departing from Boston and landing in Key West layover in Charlotte most frequently. Miami sees the second most layovers for non-direct flights flying from Boston to Key West.
What are some popular things to do or see while on a layover in Charlotte?
Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center are currently the most popular points of interest in Charlotte at the moment. Those on a layover in Charlotte interested in visiting Carowind, Mint Museum Uptown, or North Carolina Blumenthal Performing Arts Center can do so by traveling 8.2 mi, 5.4 mi, and 5.8 mi, respectively from Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $49 per day.
What are some popular points of interest to see during a layover in Miami?
The majority of Miami visitors spend their time at Wynwood Art District, Bayside Marketplace, and Bayfront Park. Wynwood Art District, Bayside Marketplace and Bayfront Park are located about 5.5 mi, 6.4 mi, and 6.4 mi, respectively from Miami if you are interested in checking them out. Those looking to explore during their layover in Miami can rent a car from Miami for about $24 per day.
Where are the least popular layover locations for Boston to Key West flights?
Boston to Key West flights have a layover in Philadelphia the least frequently.
Can I find deals for flights from Boston to Key West that include hotel bookings?
Yes. In addition to deals on Boston to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Key West?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Key West.
Can I find deals for business class flights from Boston to Key West?
Yes. Cheapflights offers flight deals from Boston to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boston to Key West?
Currently, August is the cheapest month in which you can book a flight from Boston to Key West (average of $328). Flying from Boston to Key West in March is currently the most expensive (average of $493). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Key West

Top 5 airlines flying from Boston to Key West

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$66	Average$102	FlexibilityNo cancel fee	On-time65%
JetBlue	Cheapest$210	Average$538	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$216	Average$353	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$226	Average$382	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$258	Average$405	FlexibilityNo cancel fee	On-time71%

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$105+ Cheap flights from Boston to Key West (BOS - EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Key West with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Boston Logan Intl to Key West are usually found in September or January, booked 49 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap flight deals from Boston to Key West

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Boston to Key West

Cheapest flights from Boston to Key WestExplore the most affordable flight options available from Boston to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Explore the most affordable flight options available from Boston to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Key West that are best for you.

Compare providers for flights from Boston to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Key West in April.

Best time to book a flight from Boston to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Boston with our price prediction graph.

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Everything you need to know about your flight from Boston to Key West

How far ahead should I book a flight from Boston to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Key West. Price data was last updated on March 28, 2025.

What is the cheapest month to book a flight from Boston to Key West?

What is the cheapest time of day to fly from BOS to EYW?

Find hourly flight availability from Boston to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 4, 2025.

Weekly flight availability from Boston to Key West

Explore weekly flight availability from Boston to Key West. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 4, 2025.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

Reviews of airlines servicing Key West

Read through reviews of airlines operating flights from Boston to Key West, such as Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Boston to Key West?

What are the cheapest airlines flying from Boston to Key West round-trip?

What are the cheapest airlines to fly from Boston to Key West one-way?

What are the most reliable airlines from Boston to Key West?

What are the cheapest flights from Boston to Key West?

Where are the most common layover locations when flying from Boston to Key West?

What are some popular things to do or see while on a layover in Charlotte?

What are some popular points of interest to see during a layover in Miami?

Where are the least popular layover locations for Boston to Key West flights?

Can I find deals for flights from Boston to Key West that include hotel bookings?

How can I find direct flights from Boston to Key West?

Can I find deals for business class flights from Boston to Key West?

What is the cheapest month to book a flight from Boston to Key West?

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Alternative routes for Boston to Key West

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Top 5 airlines flying from Boston to Key West

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Cheapest flights from Boston to Key West
Explore the most affordable flight options available from Boston to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.