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Cheap flights from Key West to Boston from $94

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 9/6. 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.
Delta Logo
6:18 pm - 1:20 am
EYW
-
BOS
7h 02m
1 stop
Delta Logo
5:30 am - 11:00 am
BOS
-
EYW
5h 30m
1 stop
$187Delta
Thu, Jul 16 - Mon, Jul 20
Delta Logo
6:18 pm - 1:20 am
EYW
-
BOS
7h 02m
1 stop
Delta Logo
9:05 am - 5:23 pm
BOS
-
EYW
8h 18m
1 stop
$267Delta
Thu, Jul 9 - Wed, Jul 15
Multiple Airlines Logo
10:55 am - 9:14 am
EYW
-
BOS
22h 19m
1 stop
Multiple Airlines Logo
8:41 am - 12:34 pm
BOS
-
EYW
27h 53m
2 stops
$274Multiple Airlines
Thu, Jul 16 - Mon, Jul 20
Multiple Airlines Logo
1:14 pm - 1:27 am
EYW
-
BOS
12h 13m
2 stops
Multiple Airlines Logo
11:05 am - 11:25 am
BOS
-
EYW
24h 20m
1 stop
$290Multiple Airlines
Tue, Aug 25 - Sat, Aug 29
Multiple Airlines Logo
10:55 am - 9:14 am
EYW
-
BOS
22h 19m
1 stop
Multiple Airlines Logo
8:41 am - 12:34 pm
BOS
-
EYW
27h 53m
2 stops
$295Multiple Airlines
Thu, Jul 16 - Mon, Jul 20
Multiple Airlines Logo
1:11 pm - 7:46 am
EYW
-
BOS
42h 35m
2 stops
Multiple Airlines Logo
10:04 am - 11:27 am
BOS
-
EYW
25h 23m
1 stop
$300Multiple Airlines
Mon, Jul 27 - Thu, Jul 30
Multiple Airlines Logo
11:07 am - 12:01 pm
EYW
-
BOS
24h 54m
1 stop
Multiple Airlines Logo
10:04 am - 11:27 am
BOS
-
EYW
25h 23m
1 stop
$307Multiple Airlines
Fri, Jul 10 - Thu, Jul 16
Delta Logo
2:35 pm - 10:49 pm
EYW
-
BOS
8h 14m
1 stop
Delta Logo
6:55 am - 1:09 pm
BOS
-
EYW
6h 14m
1 stop
$309Delta
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
11:07 am - 11:05 am
EYW
-
BOS
23h 58m
1 stop
Multiple Airlines Logo
8:41 am - 11:25 am
BOS
-
EYW
26h 44m
2 stops
$310Multiple Airlines
Fri, Jul 3 - Wed, Jul 8
Multiple Airlines Logo
1:11 pm - 7:46 am
EYW
-
BOS
42h 35m
2 stops
Multiple Airlines Logo
10:04 am - 11:27 am
BOS
-
EYW
25h 23m
1 stop
$312Multiple Airlines
Mon, Jul 13 - Thu, Jul 16

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American Airlines flights from Key West to Boston

Our best American Airlines deals on Key West to Boston flight tickets
American Airlines
Jul 3
EYW7:40 pmKey West
5h 19m
1 stop
BOS12:59 amBoston Logan Intl
Sep 14
BOS11:36 amBoston Logan Intl
6h 19m
1 stop
EYW5:55 pmKey West
$322
American Airlines
Jun 29
EYW7:40 pmKey West
5h 19m
1 stop
BOS12:59 amBoston Logan Intl
Jul 2
BOS10:56 amBoston Logan Intl
8h 10m
1 stop
EYW7:06 pmKey West
$342
American Airlines
Aug 3
EYW7:40 pmKey West
5h 19m
1 stop
BOS12:59 amBoston Logan Intl
Aug 4
BOS10:13 amBoston Logan Intl
5h 58m
1 stop
EYW4:11 pmKey West
$367

Delta flights from Key West to Boston

Our best Delta deals on Key West to Boston flight tickets
Delta
Jul 16
EYW6:18 pmKey West
7h 02m
1 stop
BOS1:20 amBoston Logan Intl
Jul 20
BOS5:30 amBoston Logan Intl
5h 30m
1 stop
EYW11:00 amKey West
$187
Delta
Jun 16
EYW2:28 pmKey West
8h 46m
1 stop
BOS11:14 pmBoston Logan Intl
Jun 22
BOS1:55 pmBoston Logan Intl
5h 58m
1 stop
EYW7:53 pmKey West
$219
Delta
Jun 16
EYW6:24 pmKey West
7h 07m
1 stop
BOS1:31 amBoston Logan Intl
Jun 17
BOS1:55 pmBoston Logan Intl
5h 58m
1 stop
EYW7:53 pmKey West
$251

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 June 16, 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
Quickest round-trip

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 7/16

6:18 pm-1:20 am

1 stop7h 02m

Boston Logan Intl

Mon 7/20

5:30 am-11:00 am

1 stop5h 30m

$187

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 7/9

6:18 pm-1:20 am

1 stop7h 02m

Boston Logan Intl

Wed 7/15

9:05 am-5:23 pm

1 stop8h 18m

$267

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 7/16

10:55 am-9:14 am

1 stop22h 19m

Boston Logan Intl

Mon 7/20

8:41 am-12:34 pm

2 stops27h 53m

$274

Key WestBoston

EYW - BOS

EYWBOS

Key West

Tue 8/25

1:14 pm-1:27 am

2 stops12h 13m

Boston Logan Intl

Sat 8/29

11:05 am-11:25 am

1 stop24h 20m

$290

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 7/16

10:55 am-9:14 am

1 stop22h 19m

Boston Logan Intl

Mon 7/20

8:41 am-12:34 pm

2 stops27h 53m

$295

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 7/27

1:11 pm-7:46 am

2 stops42h 35m

Boston Logan Intl

Thu 7/30

10:04 am-11:27 am

1 stop25h 23m

$300

Key WestBoston

EYW - BOS

EYWBOS

Key West

Fri 7/10

11:07 am-12:01 pm

1 stop24h 54m

Boston Logan Intl

Thu 7/16

10:04 am-11:27 am

1 stop25h 23m

$307

Key WestBoston

EYW - BOS

EYWBOS

Key West

Thu 9/10

2:35 pm-10:49 pm

1 stop8h 14m

Boston Logan Intl

Sun 9/13

6:55 am-1:09 pm

1 stop6h 14m

$309

Key WestBoston

EYW - BOS

EYWBOS

Key West

Fri 7/3

11:07 am-11:05 am

1 stop23h 58m

Boston Logan Intl

Wed 7/8

8:41 am-11:25 am

2 stops26h 44m

$310

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 7/13

1:11 pm-7:46 am

2 stops42h 35m

Boston Logan Intl

Thu 7/16

10:04 am-11:27 am

1 stop25h 23m

$312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $301. 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 $311.

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 are 2 cabin classes 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 June 2026, prices for Key West to Boston flights are approximately 21% 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

Fastest flight time

5h 11m

Direct flights

Mon, Tue, Fri, Sat and Sun

Airports in Boston

1 airport
The fastest flight from Key West to Boston takes 5h 11m
Direct flights go from Key West to Boston on Monday, Tuesday, Friday, Saturday 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 5h 11m.

  • 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
11,660 reviews
Search American Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.9
8,400 reviews
Search Delta flights
JetBluePriceFrom $251Free CancellationRating
7.1
2,981 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
York Beach
Kennebunkport
Cambridge
Plymouth
South Yarmouth
Gloucester
Revere
Narragansett
Brockton
Falmouth
Laconia
Warwick
Chatham
Sturbridge
Dennis Port

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.

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