Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Key West to Boston from $124

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Key West to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:14 am - 8:19 amEYW  Key West-BOS Boston Logan Intl
22h 05m1 stop Knoxville McGhee Tyson
Allegiant Air Logo
11:35 am - 1:12 pmBOS  Boston Logan Intl-EYW Key West
25h 37m1 stop Knoxville McGhee Tyson
$226Allegiant Air
Fri, Nov 13 - Sun, Dec 13
Multiple Airlines Logo
12:59 pm - 9:29 amEYW  Key West-BOS Boston Logan Intl
20h 30m2 stops Tampa Fort Lauderdale
Multiple Airlines Logo
11:35 am - 1:12 pmBOS  Boston Logan Intl-EYW Key West
25h 37m1 stop Knoxville McGhee Tyson
$291Multiple Airlines
Fri, Nov 13 - Sun, Dec 13
Multiple Airlines Logo
10:45 am - 9:39 amEYW  Key West-BOS Boston Logan Intl
22h 54m2 stops Tampa Fort Lauderdale
Multiple Airlines Logo
11:08 am - 10:19 amBOS  Boston Logan Intl-EYW Key West
23h 11m1 stop Orlando
$292Multiple Airlines
Wed, Dec 2 - Mon, Dec 7
Multiple Airlines Logo
12:19 pm - 9:39 amEYW  Key West-BOS Boston Logan Intl
21h 20m2 stops Tampa Fort Lauderdale
Multiple Airlines Logo
10:24 am - 10:19 amBOS  Boston Logan Intl-EYW Key West
23h 55m1 stop Orlando
$301Multiple Airlines
Wed, Jan 20 - Mon, Jan 25
JetBlue Logo
12:45 pm - 4:19 pmEYW  Key West-BOS Boston Logan Intl
3h 34mnonstop
JetBlue Logo
8:00 am - 11:55 amBOS  Boston Logan Intl-EYW Key West
3h 55mnonstop
$370JetBlue
Sat, Nov 21 - Mon, Nov 23
JetBlue Logo
12:45 pm - 4:19 pmEYW  Key West-BOS Boston Logan Intl
3h 34mnonstop
JetBlue Logo
8:00 am - 11:55 amBOS  Boston Logan Intl-EYW Key West
3h 55mnonstop
$370JetBlue
Wed, Nov 25 - Mon, Nov 30
JetBlue Logo
12:45 pm - 4:19 pmEYW  Key West-BOS Boston Logan Intl
3h 34mnonstop
JetBlue Logo
8:00 am - 11:55 amBOS  Boston Logan Intl-EYW Key West
3h 55mnonstop
$370JetBlue
Fri, Nov 20 - Mon, Nov 30
American Airlines Logo
7:37 pm - 12:59 amEYW  Key West-BOS Boston Logan Intl
5h 22m1 stop Miami
American Airlines Logo
6:00 am - 12:26 pmBOS  Boston Logan Intl-EYW Key West
6h 26m1 stop Washington, D.C. Reagan-National
$379American Airlines
Sat, Nov 21 - Mon, Nov 23
American Airlines Logo
6:30 am - 1:53 pmEYW  Key West-BOS Boston Logan Intl
7h 23m1 stop Miami
American Airlines Logo
7:49 am - 2:00 pmBOS  Boston Logan Intl-EYW Key West
6h 11m1 stop New York LaGuardia
$379American Airlines
Mon, Nov 23 - Mon, Nov 30
American Airlines Logo
1:58 pm - 5:40 pmEYW  Key West-BOS Boston Logan Intl
3h 42mnonstop
American Airlines Logo
6:00 am - 12:38 pmBOS  Boston Logan Intl-EYW Key West
6h 38m1 stop Washington, D.C. Reagan-National
$397American Airlines
Tue, Dec 22 - Tue, Dec 29

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.
Search flight deals

Allegiant Air flights from Key West to Boston

Our best Allegiant Air deals on Key West to Boston flight tickets
Allegiant Air
Nov 13
EYW10:14 amKey West
22h 05m
1 stop
BOS8:19 amBoston Logan Intl
Dec 13
BOS11:35 amBoston Logan Intl
25h 37m
1 stop
EYW1:12 pmKey West
$226
Allegiant Air
Dec 21
EYW8:23 pmKey West
12h 03m
1 stop
BOS8:26 amBoston Logan Intl
Dec 28
BOS9:28 amBoston Logan Intl
27h 21m
1 stop
EYW12:49 pmKey West
$424

JetBlue flights from Key West to Boston

Our best JetBlue deals on Key West to Boston flight tickets
JetBlue
Nov 21
EYW12:45 pmKey West
3h 34m
BOS4:19 pmBoston Logan Intl
Nov 23
BOS8:00 amBoston Logan Intl
3h 55m
EYW11:55 amKey West
$370
JetBlue
Nov 13
EYW12:46 pmKey West
3h 59m
BOS4:45 pmBoston Logan Intl
Nov 16
BOS8:00 amBoston Logan Intl
3h 56m
EYW11:56 amKey West
$378
JetBlue
Nov 19
EYW12:45 pmKey West
3h 34m
BOS4:19 pmBoston Logan Intl
Dec 1
BOS8:25 amBoston Logan Intl
3h 58m
EYW12:23 pmKey West
$398

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Fri 11/13

10:14 am-8:19 am

1 stop22h 05m

Boston Logan Intl

Sun 12/13

11:35 am-1:12 pm

1 stop25h 37m

$226

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Fri 11/13

12:59 pm-9:29 am

2 stops20h 30m

Boston Logan Intl

Sun 12/13

11:35 am-1:12 pm

1 stop25h 37m

$291

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Wed 12/2

10:45 am-9:39 am

2 stops22h 54m

Boston Logan Intl

Mon 12/7

11:08 am-10:19 am

1 stop23h 11m

$292

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Wed 1/20

12:19 pm-9:39 am

2 stops21h 20m

Boston Logan Intl

Mon 1/25

10:24 am-10:19 am

1 stop23h 55m

$301
Quickest round-trip

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Sat 11/21

12:45 pm-4:19 pm

Nonstop3h 34m

Boston Logan Intl

Mon 11/23

8:00 am-11:55 am

Nonstop3h 55m

$370

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Wed 11/25

12:45 pm-4:19 pm

Nonstop3h 34m

Boston Logan Intl

Mon 11/30

8:00 am-11:55 am

Nonstop3h 55m

$370

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Fri 11/20

12:45 pm-4:19 pm

Nonstop3h 34m

Boston Logan Intl

Mon 11/30

8:00 am-11:55 am

Nonstop3h 55m

$370

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Sat 11/21

7:37 pm-12:59 am

1 stop5h 22m

Boston Logan Intl

Mon 11/23

6:00 am-12:26 pm

1 stop6h 26m

$379

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Mon 11/23

6:30 am-1:53 pm

1 stop7h 23m

Boston Logan Intl

Mon 11/30

7:49 am-2:00 pm

1 stop6h 11m

$379

Key WestBoston

EYW Key West - BOS Boston Logan Intl

EYWBOS

Key West

Tue 12/22

1:58 pm-5:40 pm

Nonstop3h 42m

Boston Logan Intl

Tue 12/29

6:00 am-12:38 pm

1 stop6h 38m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, March 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 $292. If you aren’t able to travel during the month of March, then book flights to Boston from Key West during February instead. Flights to Boston in February, while not as cheap as those in March, still average around $327.

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 Thursday when prices can be found for as low as $388. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Wednesday is $497.

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 at noon. momondo users have found flights departing from Key West to Boston at noon for as low as $402. 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 $553 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 flights?

There is only 1 cabin class available to choose from on Key West to Boston 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 Key West to Boston flights?

No. A direct flight is the cheapest option for a flight between Key West to Boston.

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

As of October 2026, prices for Key West to Boston flights are approximately 77% 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

$124

Fastest flight time

3h 31m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from Key West in the past 72 hours is $124. The best round-trip flight deal from Key West to Boston found on momondo in the last 72 hours is $226.
The fastest flight from Key West to Boston takes 3h 31m
Direct flights go from Key West to Boston every day.
There is 1 airport in Boston. From Key West there are direct flights to Boston Logan Intl (BOS).
Search flight deals

Frequently asked questions about flying 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 3h 31m.

  • 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
JetBluePriceFrom $242Free CancellationRating
7.1
3,071 reviews
Search JetBlue flights
American AirlinesPriceFrom $301Free CancellationRating
7.0
12,191 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 1 flight/week on average for this route. A good JetBlue flight deal for Key West to Boston starts from $242 round-trip, up to an average price of $476. Our users have rated JetBlue at 7.1/10.

Traveling to a place near Boston?

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

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.

An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 11/27
Fri 12/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States