BOS

$59 Find Cheap Flights from Florida Keys to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$73
Overall average: $177
Spirit Airlines
Wed 3/11Sun 3/22
MIA - BOS • Non-stop
Cheapest one-way
$59
Typical prices: $90-$264
Multiple Airlines
Tue 2/24
MIA - BOS • 1 stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Florida Keys to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Florida Keys to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Florida Keys to Boston

Wed, Mar 11 - Sun, Mar 22
Spirit Airlines Logo
8:37 pm - 11:59 pm
MIA
-
BOS
3h 22mnonstop
Spirit Airlines Logo
6:01 am - 9:34 am
BOS
-
MIA
3h 33mnonstop
$73Spirit Airlines
Fri, Feb 13 - Tue, Feb 24
Spirit Airlines Logo
1:21 pm - 4:45 pm
MIA
-
BOS
3h 24mnonstop
Spirit Airlines Logo
3:54 pm - 7:32 pm
BOS
-
MIA
3h 38mnonstop
$74Spirit Airlines
Wed, Feb 25 - Sat, Feb 28
Spirit Airlines Logo
8:37 pm - 11:59 pm
MIA
-
BOS
3h 22mnonstop
Spirit Airlines Logo
3:54 pm - 7:32 pm
BOS
-
MIA
3h 38mnonstop
$75Spirit Airlines
Thu, Feb 26 - Sun, Mar 1
Spirit Airlines Logo
8:37 pm - 11:59 pm
MIA
-
BOS
3h 22mnonstop
Spirit Airlines Logo
5:50 pm - 9:32 pm
BOS
-
MIA
3h 42mnonstop
$76Spirit Airlines
Thu, Feb 26 - Tue, Mar 3
Spirit Airlines Logo
8:37 pm - 11:59 pm
MIA
-
BOS
3h 22mnonstop
Spirit Airlines Logo
3:54 pm - 7:32 pm
BOS
-
MIA
3h 38mnonstop
$78Spirit Airlines
Sun, Feb 15 - Thu, Feb 19
United Airlines Logo
6:40 pm - 11:57 pm
EYW
-
BOS
5h 17m
1 stop
United Airlines Logo
8:11 am - 10:09 pm
BOS
-
EYW
13h 58m
2 stops
$245United Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
12:15 pm - 11:59 pm
EYW
-
BOS
11h 44m
1 stop
Multiple Airlines Logo
7:00 am - 12:26 pm
BOS
-
EYW
29h 26m
1 stop
$268Multiple Airlines
Sat, Feb 14 - Tue, Feb 17
United Airlines Logo
2:15 pm - 8:11 pm
EYW
-
BOS
5h 56m
1 stop
United Airlines Logo
6:00 am - 1:15 pm
BOS
-
EYW
7h 15m
1 stop
$347United Airlines
Sun, Feb 15 - Thu, Feb 19
Multiple Airlines Logo
2:25 pm - 11:44 pm
EYW
-
BOS
9h 19m
1 stop
Multiple Airlines Logo
8:00 am - 11:58 am
BOS
-
EYW
3h 58mnonstop
$366Multiple Airlines
Sat, Feb 14 - Tue, Feb 17
American Airlines Logo
2:46 pm - 6:14 pm
EYW
-
BOS
3h 28mnonstop
American Airlines Logo
7:45 am - 1:48 pm
BOS
-
EYW
6h 03m
1 stop
$368American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$59
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Miami to Boston

FAQs for booking flights from Florida Keys to Boston

  • How does KAYAK find such low prices on flights from Florida Keys to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Florida Keys to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Florida Keys to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Florida Keys is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Florida Keys to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Florida Keys with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Florida Keys to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Florida Keys to Boston

 
Need help choosing which airline to fly with from Florida Keys to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8130 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

2.0 MediocreJulia, Jan 2026
MSP - BOS
Read more Delta reviews

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

Advertised fruit trays with cheese, but only snacks handed out!

The food is terrible. The staff is wonderful. Comfort is good.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

Little warm on the plane and delayed for an hour

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

It was fine. My connection in Charlotte to go to WPB was too late and I had to spend the night in the Charlotte Airport in the mini suites.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

we were delayed because of some safety check that wasn't done or available

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

All very good except they didn’t load our walker so haven’t gotten it yet

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

Nothing everything cost money a bottle of water is 5 dollars and there wasn't even an outlet to plug 🔌 in my 📱 phone

Extra legroom with my upgrade bundle. Clean aircraft, on-time departure, early arrival. Good value for the price.

Even though the plane was delayed from the previous airport, the staff recognized this and kept us informed. The flight crew was absolutely awesome from on my flight from Ft. Meyers to AC. Great experience all around!

Not seat assigned because overbooking. We could go because some people decided to give their seats.

Spirit loves to pick and choose when to harass you about your personal item. I’ve flown numerous times with the same bag with no problem yet flying out of Orlando they forced me to pay $99 for a carry on and then ran out of overhead space. Do better!

didn't order food on board. there's no way to hold a water botton on the way. otherwise it was a pleasant flight, thanks to the crew.

Even though there was a delay the crew was exceptional.

Flight was not on time and it was very annoying flight. Keep changing gates.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

Flight got delayed for 5 hours no good explanation was offered ;(

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

The experience was good. No frills but I got there safe and sound and on time.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

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