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Cheap flights from Key West to Boston from $150

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 8/17. 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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0 bags

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Cheap round-trip flights

Delta Logo
6:20 pm - 1:20 amEYW-BOS
7h 00m1 stop
Delta Logo
1:35 pm - 8:12 pmBOS-EYW
6h 37m1 stop
$317Delta
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Sat, Aug 30 - Fri, Sep 5
American Airlines Logo
5:56 pm - 11:45 pmEYW-BOS
5h 49m1 stop
American Airlines Logo
10:30 am - 5:46 pmBOS-EYW
7h 16m2 stops
$322American Airlines
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Sat, Aug 30 - Fri, Sep 5
American Airlines Logo
1:58 pm - 11:00 pmEYW-BOS
9h 02m2 stops
American Airlines Logo
10:30 am - 5:46 pmBOS-EYW
7h 16m2 stops
$327American Airlines
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Sat, Aug 30 - Fri, Sep 5
JetBlue Logo
1:00 pm - 4:32 pmEYW-BOS
3h 32mnonstop
JetBlue Logo
8:00 am - 11:55 amBOS-EYW
3h 55mnonstop
$332JetBlue
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Thu, Oct 23 - Mon, Oct 27
United Airlines Logo
2:12 pm - 11:59 pmEYW-BOS
9h 47m2 stops
United Airlines Logo
7:00 am - 1:12 pmBOS-EYW
6h 12m1 stop
$361United Airlines
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Thu, Jul 24 - Mon, Jul 28
Logo
10:23 am - 9:42 pmEYW-BOS
11h 19m2 stops
Logo
9:45 am - 8:04 amBOS-EYW
22h 19m2 stops
$375
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Mon, Jul 21 - Wed, Jul 23
Logo
10:23 am - 9:42 pmEYW-BOS
11h 19m2 stops
Logo
6:15 am - 1:07 pmBOS-EYW
6h 52m1 stop
$392
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Fri, Jul 25 - Mon, Jul 28
United Airlines Logo
2:12 pm - 11:59 pmEYW-BOS
9h 47m2 stops
United Airlines Logo
7:00 am - 1:12 pmBOS-EYW
6h 12m1 stop
$402United Airlines
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Mon, Jul 21 - Wed, Jul 23
Logo
8:54 am - 8:11 amEYW-BOS
23h 17m2 stops
Logo
4:12 pm - 4:41 pmBOS-EYW
24h 29m3 stops
$408
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Thu, Aug 7 - Thu, Aug 14
Allegiant Air Logo
4:20 pm - 8:11 amEYW-BOS
15h 51m1 stop
Allegiant Air Logo
9:45 am - 8:04 amBOS-EYW
22h 19m2 stops
$431Allegiant Air
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Sun, Jul 20 - Wed, Jul 23

American Airlines flights from Key West to Boston

Our best American Airlines deals on Key West to Boston flight tickets
American Airlines
Aug 30
EYW5:56 pmKey West
5h 49m
1 stop
BOS11:45 pmBoston Logan Intl
Sep 5
BOS10:30 amBoston Logan Intl
7h 16m
2 stops
EYW5:46 pmKey West
$322
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American Airlines
Aug 30
EYW1:58 pmKey West
9h 02m
2 stops
BOS11:00 pmBoston Logan Intl
Sep 5
BOS10:30 amBoston Logan Intl
7h 16m
2 stops
EYW5:46 pmKey West
$327
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American Airlines
Jul 12
EYW7:51 pmKey West
5h 08m
1 stop
BOS12:59 amBoston Logan Intl
Jul 15
BOS5:36 amBoston Logan Intl
6h 24m
1 stop
EYW12:00 pmKey West
$348
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United Airlines flights from Key West to Boston

Our best United Airlines deals on Key West to Boston flight tickets
United Airlines
Jul 24
EYW2:12 pmKey West
9h 47m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 28
BOS7:00 amBoston Logan Intl
6h 12m
1 stop
EYW1:12 pmKey West
$361
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United Airlines
Jul 12
EYW2:08 pmKey West
7h 10m
1 stop
BOS9:18 pmBoston Logan Intl
Jul 13
BOS7:00 amBoston Logan Intl
5h 41m
1 stop
EYW12:41 pmKey West
$397
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United Airlines
Jul 21
EYW2:12 pmKey West
9h 47m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 23
BOS7:00 amBoston Logan Intl
6h 12m
1 stop
EYW1:12 pmKey West
$402
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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, September 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 $300. If you aren’t able to travel during the month of September, then book flights to Boston from Key West during November instead. Flights to Boston in November, while not as cheap as those in September, still average around $320.

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 Saturday when prices can be found for as low as $289. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $681.

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 $338. 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 $508 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 Logan Intl flights?

There are 1 cabin classes available to choose from on Key West to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of July 2025, prices for Key West to Boston flights are approximately 15% 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

$150

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 $150. The best round-trip flight deal from Key West to Boston found on momondo in the last 72 hours is $317.
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 near Boston: Boston Logan Intl (BOS)
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  • 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 32m.

  • 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
DeltaPriceFrom $216Free CancellationRating
8.0
7,952 reviews
Search Delta flights
JetBluePriceFrom $236Free CancellationRating
7.3
2,910 reviews
Search JetBlue flights
American AirlinesPriceFrom $241Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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
Plymouth
Nashua
Cambridge
Kennebunkport
Narragansett
Laconia
Brockton
Concord
Everett
South Yarmouth
Gloucester
Wells
Warwick
Falmouth

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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