$29 Find Cheap Flights to Marathon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Marathon departing on 6/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Marathon

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$75
Typical prices: $269-$128
Frontier
Mon 7/6Wed 7/8
ATL - MIA • Non-stop
Cheapest one-way
$29
Typical prices: $60-$183
Frontier
Sat 6/20
ATL - MIA • Non-stop
Arrival airport
You can't fly directly to Marathon. It is served by Miami (MIA), located 87.8 miles from Marathon.
FAQs
FAQs
FAQs
FAQs
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Marathon!
Flight Deals
Useful Info
Flight Deals

Cheap Flights to Marathon

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Marathon 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 to Marathon

Mon, Jul 6 - Wed, Jul 8
Frontier Logo
8:55 pm - 11:05 pm
ATL
-
MIA
2h 10mnonstop
Frontier Logo
8:30 am - 10:41 am
MIA
-
ATL
2h 11mnonstop
$75Frontier
Sun, Sep 20 - Thu, Sep 24
Frontier Logo
4:47 pm - 7:45 pm
PHL
-
MIA
2h 58mnonstop
Frontier Logo
8:50 pm - 11:47 pm
MIA
-
PHL
2h 57mnonstop
$75Frontier
Sat, Jun 20 - Wed, Jun 24
Frontier Logo
9:27 pm - 11:34 pm
ATL
-
MIA
2h 07mnonstop
Frontier Logo
11:19 am - 1:34 pm
MIA
-
ATL
2h 15mnonstop
$76Frontier
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
2:35 pm - 5:52 pm
JFK
-
MIA
3h 17mnonstop
American Airlines Logo
7:02 am - 10:00 am
MIA
-
JFK
2h 58mnonstop
$168American Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
6:34 pm - 9:51 pm
EWR
-
MIA
3h 17mnonstop
American Airlines Logo
8:30 am - 11:33 am
MIA
-
EWR
3h 03mnonstop
$168American Airlines
Sat, Sep 19 - Sat, Sep 26
Delta Logo
7:45 pm - 11:13 pm
JFK
-
MIA
3h 28mnonstop
Delta Logo
3:35 pm - 7:02 pm
MIA
-
JFK
3h 27mnonstop
$177Delta
Sat, Sep 19 - Wed, Sep 23
American Airlines Logo
9:05 am - 12:18 pm
LGA
-
MIA
3h 13mnonstop
American Airlines Logo
7:03 am - 9:59 am
MIA
-
LGA
2h 56mnonstop
$177American Airlines
Tue, Sep 15 - Wed, Sep 23
American Airlines Logo
8:14 am - 11:20 am
EWR
-
MIA
3h 06mnonstop
American Airlines Logo
1:35 pm - 4:37 pm
MIA
-
EWR
3h 02mnonstop
$177American Airlines
Sat, Sep 5 - Sat, Sep 12
Delta Logo
3:40 pm - 10:48 pm
JFK
-
MIA
7h 08m
1 stop
Delta Logo
3:35 pm - 7:02 pm
MIA
-
JFK
3h 27mnonstop
$187Delta
Sat, Jun 6 - Wed, Jun 10
Delta Logo
7:55 pm - 11:24 pm
JFK
-
MIA
3h 29mnonstop
Delta Logo
3:25 pm - 6:54 pm
MIA
-
JFK
3h 29mnonstop
$192Delta
Useful Info

Good to know - Book Cheap Marathon Plane Tickets

Low seasonSeptember
Cheapest flight$29
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Atlanta to Miami

Flights to Marathon: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew to Marathon 
Verified travelerFlew with American Airlines
ATL
-
MIA
May 2026
If you are transiting through Doha and you have a long layover make sure you book the flight through Qatar airways and not using a code share that's a book through American airlines because they will deny you a STPC which is a stopover paid by carrier aka the free hotel. We ended up sleeping on the floor of the airport which kind of sucked but it wasn't the end of the world. Next time I will not make this mistake and I will never book with American airlines again.
MarkFlew with Delta
SEA
-
MIA
Mar 2026
If you're not in 1st class, you'll want a seat cushion. We were in comfort extra and both had sore tailbones. Seats very uncomfortable after a couple of hours.
Verified travelerFlew with Frontier
LGA
-
MIA
Feb 2025
Get to the airport early. Miami is a popular destination and it’s better to be at the gate early.
Verified travelerFlew with Delta
ATL
-
MIA
Jan 2025
Atlanta is a buay airport, plan to arrive early!
Verified travelerFlew with Spirit Airlines
LGA
-
MIA
Jan 2025
You don't need to be there that early, an hour earlier than the departure for a local airport is fine.
ScottFlew with United Airlines
EWR
-
MIA
Jan 2025
Long walk / train to rental counter Newark from manhattan is faster than jfk
deepakFlew with Spirit Airlines
EWR
-
MIA
Dec 2024
Do not check in baggage and keep everything in carry on as much as possible. Also this is a cheap flight with cheap service so expect anything to happen
RonelliFlew with American Airlines
LAX
-
MIA
Mar 2024
Have your app so you can be notified incase of any changes
AmranulFlew with Delta
JFK
-
MIA
Apr 2024
If you have a child who is under two years old or older, make sure they have seat right next to you otherwise they will make you sit far from them
JohnFlew with American Airlines
PIT
-
MIA
Apr 2024
Schedule enough time between the two flights. There was an hour scheduled between our flights and we just made boarding at the gate
ArmandFlew with LATAM Airlines
MSP
-
MIA
Dec 2023
TSA pre check was faster and more efficient then CLEAR
MarieFlew with American Airlines
SAV
-
MIA
Feb 2024
Use the Tri-Rail to get to Fort Lauderdale

FAQs - booking Marathon flights

  • How long is the flight to Marathon?

    Flights from New York LaGuardia Airport3h 07m
    Flights from Chicago O'Hare Intl Airport3h 03m
    Flights from Boston3h 29m
    Flights from Atlanta1h 50m
    Flights from Los Angeles4h 50m
  • What is the cheapest flight to Miami?

    In the last 7 days, the cheapest flight deal to Miami was found on the route from Atlanta, at $75 return. The most popular connection is from New York to Miami and KAYAK users have found round-trip deals for as low as $174 in the last 7 days.

  • Which airlines fly to Miami?

    Many airlines fly to Miami, the most common ones being American Airlines, Delta, and Southwest. See the amount of flights per week for popular airlines flying to Miami.

  • How to fly to Marathon?

    You cannot fly directly to Marathon. KAYAK recommends you fly to Miami (MIA) (87.77 miles from Marathon). From there you can rent a car or get a taxi.

  • What airports are near Marathon?

    The closest airport is Key West (EYW) (46.43 mi). Another nearby airport is Miami (MIA) (87.77 mi). KAYAK recommends you fly to Miami.

  • How far is Miami Airport from central Miami?

    Central Miami is 6 miles away from Miami Airport.

  • What is the name of Miami’s airport?

    Miami is served by Miami Airport, also commonly referred to as Miami or Miami Intl. The airport code is MIA.

  • How does KAYAK find such low prices on flights to Marathon?

    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 to Marathon.

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

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

  • What is the Hacker Fare option on flights to Marathon?

    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 Marathon with an airline and back with another airline.

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

    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 Marathon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Marathon

  • There is no major airport in Marathon. It is instead served by Miami Airport.
  • Looking for cheap airfare to Marathon? 25% of our users found round-trip tickets to Marathon for the following prices or less: From Boston $776, from San Francisco $937, from Los Angeles $995
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Marathon flight deals.

Reviews of the top 5 airlines flying to Marathon

 
Need help choosing which airline to fly with from the United States to Marathon? 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 8449 reviews
8.5Crew
8.1Boarding
7.2Food
7.8Comfort
7.8Entertainment
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

N Everything was perfect from boarding to assistance to baggage in Tampa

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The whole experience was excellent. As it most often is with Delta

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

This flight is a quick way to get to Chicago, but a bit expensive.

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

So overall the flight was just average and nothing special. They overbooked some of the flights and they ended up running out of overhead storage space so we had to check our carry-ons which wasn't terrible but we were inconvenienced because of the second connecting flight with a long layover we couldn't get our bags until the final destination. Most of the flight attendants were pretty good and overall the meals were not that great because the chicken was dry and overcooked. They also didn't provide butter or any kind of spread with the bread which is cheap and concerning. The American airlines staff at the check-in counter was kind of unprofessional because this lady just started singing in the middle of checking us in and that's weird. The worst part of the flights was the terrible conditions of the bathrooms which were unclean and did not have toilet paper or toilet tissue available which is kind of insane for a 14-hour and 8 and 1/2 hour flight.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

I was able to get the AA customer Service desk to put me on an earlier flight without any issues.

Incredibly delayed. First delay was due to plane coming in being late. Resulted in 30 minute delay. Boarded and then had multiple mechanical issues. Was on plane for an hour until they told people they could get off if they wanted but couldn't come back. Then gate agent rushed in and said they had lost control of who went off and we would all have to deplane and then get back on. They said flight had not been cancelled. Then while sitting waiting to board again they announced it would take two hours to get new plane and to wait at new gate. New plane arrived, reboarded only to find out that pilots had timed out. Waited for new pilots. In that time one of the flight attendants timed out. Never received food or water while waiting. Was confusing mess as to what was happening. Even flight attendants and gate agents were getting frustrated. Almost 6 hours delayed. Called American to received flight credit but can't get anywhere as Kayak reservation and don't have a ticket number. Reached out to Kayak but never heard back.

Very disappointing. Flight was delayed by 1.5 hours and food options are very underwhelming even for first class seats (same food given to economy seats)

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

I would have liked vegetarian and gluten free options for evening dinner time flight. I would have like a pillow on the international overnight flight . The veg wrap and oaten desert on the international flight was good

We hoarded. Then we deplaned. Then we waited for 10 hours in the MSP airport due to a wheel misfunction. We understand safety but communication between crew and airport staff was horrible. When we did finally board, we were rushed on and because we were waiting for a “fresh” pilot and crew, we sat in a roasting plane with no A/C for an hour. My question is why was this flight not cancelled right away when they knew this would be a huge issue OR, why did AA not get a substitute plane, considering this was already a full flight? To me, this appears to be a complete breakdown in leadership and utter systems failure. The compensation for completely disrupting travel plans for hundreds, which we paid dearly for, was measly. While we appreciated the lodging for the night, $12 in meal vouchers isn’t going to sustain anyone for over 12 hours. “We apologize; our hands are tied” is no longer an acceptable explanation. We are so completely turned off by this experience and will definitely seek alternative avenues when we need to fly.

It would have been better IF IT HAD NOT BEEN CANCELED!!!!

Flights were canceled due to airline shutting down and haven’t received a reimbursement. Had to book last minute new flights which were expensive

The company went out of business and now I'm stuck in Ft. Lauderdale. Would not recommend.

Spirit changed flight times by 12 hours with coming and going so I refunded tickets and drove

The agent cancel my flight without my consent. So the situation generate me a lot of troubles, specially because we were traveling with a baby

Wonderful! Very polite crew that was dedicated to excellent customer service

The flight was delayed for over an hour. No one at the gate said anything about the flight being delayed. I had to rely on my phone for updates. Absolutely no communication at the gate.

The boarding process was simple but the seats were very uncomfortable. The staff lady was also very hard to understand when she spoke over the intercom about procedures and updates. Other staff members seemed like they were just tired and didnt want to be on the plane. Im used to happy attendants and being able to understand what is said over the speakers.

Flight was delayed 6plus hours Did not take flight Customer service was terrible Will never fly again and will spread how terrible you are You stink

I didnt have a flight. Kayak must be on drugs because I confirmed with spirit that I had no booked flight.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

Everything you need to know for your flight to Marathon