Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Key West to Boston from $132

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 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Multiple Airlines Logo
8:48 pm - 9:09 am
EYW
-
BOS
12h 21m
1 stop
Multiple Airlines Logo
8:41 am - 7:13 pm
BOS
-
EYW
34h 32m
2 stops
$263Multiple Airlines
Thu, Jul 23 - Wed, Jul 29
Multiple Airlines Logo
8:48 pm - 9:09 am
EYW
-
BOS
12h 21m
1 stop
Multiple Airlines Logo
10:04 am - 1:22 pm
BOS
-
EYW
27h 18m
1 stop
$294Multiple Airlines
Thu, Jul 23 - Wed, Jul 29
Multiple Airlines Logo
12:05 pm - 9:09 am
EYW
-
BOS
21h 04m
1 stop
Multiple Airlines Logo
12:45 pm - 12:34 pm
BOS
-
EYW
23h 49m
2 stops
$313Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
10:15 am - 4:55 pm
EYW
-
BOS
6h 40m
1 stop
American Airlines Logo
6:00 am - 11:36 am
BOS
-
EYW
5h 36m
1 stop
$327American Airlines
Wed, Aug 5 - Wed, Aug 19
American Airlines Logo
7:40 pm - 12:59 am
EYW
-
BOS
5h 19m
1 stop
American Airlines Logo
6:00 am - 1:14 pm
BOS
-
EYW
7h 14m
1 stop
$328American Airlines
Mon, Jul 20 - Sun, Jul 26
Multiple Airlines Logo
12:25 pm - 8:51 am
EYW
-
BOS
20h 26m
1 stop
Multiple Airlines Logo
1:00 pm - 9:24 am
BOS
-
EYW
20h 24m
2 stops
$340Multiple Airlines
Thu, Sep 17 - Tue, Sep 22
American Airlines Logo
7:40 pm - 12:59 am
EYW
-
BOS
5h 19m
1 stop
American Airlines Logo
5:35 am - 1:09 pm
BOS
-
EYW
7h 34m
1 stop
$342American Airlines
Tue, Jul 21 - Tue, Aug 18
American Airlines Logo
7:40 pm - 12:59 am
EYW
-
BOS
5h 19m
1 stop
American Airlines Logo
10:13 am - 4:11 pm
BOS
-
EYW
5h 58m
1 stop
$347American Airlines
Mon, Aug 3 - Tue, Aug 4
Multiple Airlines Logo
12:07 pm - 9:09 am
EYW
-
BOS
21h 02m
1 stop
Multiple Airlines Logo
1:00 pm - 10:19 am
BOS
-
EYW
21h 19m
2 stops
$349Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
12:07 pm - 9:09 am
EYW
-
BOS
21h 02m
1 stop
Multiple Airlines Logo
11:59 am - 12:34 pm
BOS
-
EYW
24h 35m
2 stops
$352Multiple Airlines
Mon, Jul 27 - Mon, Aug 3

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

United Airlines flights from Key West to Boston

Our best United Airlines deals on Key West to Boston flight tickets
United Airlines
Jul 15
EYW2:26 pmKey West
9h 33m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 19
BOS8:15 amBoston Logan Intl
7h 04m
1 stop
EYW3:19 pmKey West
$362
United Airlines
Jul 15
EYW2:26 pmKey West
9h 33m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 19
BOS5:45 amBoston Logan Intl
9h 34m
2 stops
EYW3:19 pmKey West
$367
United Airlines
Jul 7
EYW2:26 pmKey West
9h 33m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 14
BOS5:45 amBoston Logan Intl
9h 34m
2 stops
EYW3:19 pmKey West
$548

American Airlines flights from Key West to Boston

Our best American Airlines deals on Key West to Boston flight tickets
American Airlines
Aug 5
EYW10:15 amKey West
6h 40m
1 stop
BOS4:55 pmBoston Logan Intl
Aug 19
BOS6:00 amBoston Logan Intl
5h 36m
1 stop
EYW11:36 amKey West
$327
American Airlines
Jul 20
EYW7:40 pmKey West
5h 19m
1 stop
BOS12:59 amBoston Logan Intl
Jul 26
BOS6:00 amBoston Logan Intl
7h 14m
1 stop
EYW1:14 pmKey West
$328
American Airlines
Jul 21
EYW7:40 pmKey West
5h 19m
1 stop
BOS12:59 amBoston Logan Intl
Aug 18
BOS5:35 amBoston Logan Intl
7h 34m
1 stop
EYW1:09 pmKey West
$342

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 1, 2026.
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 - BOS

EYWBOS

Key West

Thu 7/23

8:48 pm-9:09 am

1 stop12h 21m

Boston Logan Intl

Wed 7/29

8:41 am-7:13 pm

2 stops34h 32m

$263

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 7/23

8:48 pm-9:09 am

1 stop12h 21m

Boston Logan Intl

Wed 7/29

10:04 am-1:22 pm

1 stop27h 18m

$294

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 8/27

12:05 pm-9:09 am

1 stop21h 04m

Boston Logan Intl

Mon 8/31

12:45 pm-12:34 pm

2 stops23h 49m

$313

Key WestBoston

EYW - BOS

EYWBOS

Key West

Wed 8/5

10:15 am-4:55 pm

1 stop6h 40m

Boston Logan Intl

Wed 8/19

6:00 am-11:36 am

1 stop5h 36m

$327

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 7/20

7:40 pm-12:59 am

1 stop5h 19m

Boston Logan Intl

Sun 7/26

6:00 am-1:14 pm

1 stop7h 14m

$328

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 9/17

12:25 pm-8:51 am

1 stop20h 26m

Boston Logan Intl

Tue 9/22

1:00 pm-9:24 am

2 stops20h 24m

$340

Key WestBoston

EYW - BOS

EYWBOS

Key West

Tue 7/21

7:40 pm-12:59 am

1 stop5h 19m

Boston Logan Intl

Tue 8/18

5:35 am-1:09 pm

1 stop7h 34m

$342
Quickest round-trip

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 8/3

7:40 pm-12:59 am

1 stop5h 19m

Boston Logan Intl

Tue 8/4

10:13 am-4:11 pm

1 stop5h 58m

$347

Key WestBoston

EYW - BOS

EYWBOS

Key West

Fri 9/4

12:07 pm-9:09 am

1 stop21h 02m

Boston Logan Intl

Thu 9/10

1:00 pm-10:19 am

2 stops21h 19m

$349

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 7/27

12:07 pm-9:09 am

1 stop21h 02m

Boston Logan Intl

Mon 8/3

11:59 am-12:34 pm

2 stops24h 35m

$352

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

What is the cheapest month to fly to Boston?

In general, November 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 $316. If you aren’t able to travel during the month of November, then book flights to Boston from Key West during August instead. Flights to Boston in August, while not as cheap as those in November, still average around $316.

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 Wednesday when prices can be found for as low as $292. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $843.

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 $332. 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 $497 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?

You could potentially save up to 2% on your flight if you consider stops on a Key West to Boston flight.

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

As of July 2026, prices for Key West to Boston flights are approximately 5% cheaper 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

Fastest flight time

3h 49m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sun

Airports in Boston

1 airport
The fastest flight from Key West to Boston takes 3h 49m
Direct flights go from Key West to Boston on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.
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 49m.

  • 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
American AirlinesPriceFrom $182Free CancellationRating
7.1
11,768 reviews
Search American Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.8
8,452 reviews
Search Delta flights
JetBluePriceFrom $251Free CancellationRating
7.1
3,009 reviews
Search JetBlue flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
Cambridge
York Beach
Plymouth
Kennebunkport
South Yarmouth
Laconia
Revere
Gloucester
Warwick
Brockton
Falmouth
South Portland
Narragansett
Middletown
Chatham

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 7/31
Fri 8/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States