$85 Find Cheap Flights from Houston to Key Largo - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Key Largo departing on 8/5. 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
$169
Typical prices: $117-$268
Southwest
Tue 8/25Tue 9/1
HOU - MIA • Non-stop
Cheapest one-way
$85
Typical prices: $102-$193
Southwest
Wed 8/5
HOU - MIA • Non-stop
Arrival airport
You can't fly directly to Key Largo. It is served by Miami (MIA), located 49.7 miles from Key Largo.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Houston to Key Largo (HOU-MIA)

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

Tue, Aug 25 - Tue, Sep 1
Southwest Logo
6:25 pm - 9:50 pm
HOU
-
MIA
2h 25mnonstop
Southwest Logo
6:45 am - 8:20 am
MIA
-
HOU
2h 35mnonstop
$169Southwest
Sat, Aug 8 - Tue, Aug 11
Southwest Logo
8:10 am - 4:30 pm
HOU
-
MIA
7h 20m
1 stop
Southwest Logo
6:45 am - 8:20 am
MIA
-
HOU
2h 35mnonstop
$179Southwest
Tue, Aug 4 - Tue, Aug 11
Delta Logo
5:20 pm - 12:47 am
HOU
-
MIA
6h 27m
1 stop
Delta Logo
7:00 am - 12:16 pm
MIA
-
HOU
6h 16m
1 stop
$180Delta
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
6:25 pm - 9:50 pm
HOU
-
MIA
2h 25mnonstop
Southwest Logo
6:45 am - 8:20 am
MIA
-
HOU
2h 35mnonstop
$183Southwest
Sat, Aug 22 - Mon, Aug 24
Southwest Logo
8:10 am - 4:30 pm
HOU
-
MIA
7h 20m
2 stops
Southwest Logo
5:45 am - 7:20 am
MIA
-
HOU
2h 35mnonstop
$184Southwest
Wed, Aug 19 - Sat, Aug 29
Southwest Logo
6:25 pm - 9:50 pm
HOU
-
MIA
2h 25mnonstop
Southwest Logo
5:10 pm - 6:55 pm
MIA
-
HOU
2h 45mnonstop
$185Southwest
Sat, Sep 5 - Thu, Sep 10
Southwest Logo
10:35 am - 2:05 pm
HOU
-
MIA
2h 30mnonstop
Southwest Logo
5:45 am - 7:20 am
MIA
-
HOU
2h 35mnonstop
$187Southwest
Sat, Aug 8 - Tue, Aug 11
Southwest Logo
8:10 am - 4:30 pm
HOU
-
MIA
7h 20m
1 stop
Southwest Logo
7:10 am - 11:45 am
MIA
-
HOU
5h 35m
1 stop
$189Southwest
Thu, Aug 20 - Mon, Aug 24
Southwest Logo
4:50 pm - 10:05 pm
HOU
-
MIA
4h 15m
1 stop
Southwest Logo
5:45 am - 7:20 am
MIA
-
HOU
2h 35mnonstop
$190Southwest
Wed, Aug 5 - Wed, Aug 12
Southwest Logo
6:25 pm - 9:50 pm
HOU
-
MIA
2h 25mnonstop
Southwest Logo
6:45 am - 8:20 am
MIA
-
HOU
2h 35mnonstop
$191Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$85
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Houston Hobby Airport to Miami

When to book flights from Houston to Key Largo

Are your dates flexible? Find out the best times to travel from Houston to Key Largo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Houston Hobby Airport to Key Largo

  • Which airports will I be using when flying from Houston Hobby Airport to Key Largo?

    When flying out of Houston Hobby Airport you’ll be using Houston Hobby. Key Largo does not have its own airport so you’ll be flying into nearby Miami airport, which is 49.7 mi away.

  • How long does a flight from Houston Hobby Airport to Key Largo take?

    Direct flights cover the 953 miles separating Houston Hobby Airport and Key Largo in about 2h 25m.

  • How many flights are there between Houston Hobby Airport and Key Largo?

    2 direct flights run between Houston Hobby Airport and Key Largo on a daily basis. On average, there are about 16 departures each week.

  • What’s the cheapest day of the week to fly between Houston Hobby Airport and Key Largo?

    Consider leaving on a Sunday and avoid Wednesdays if you are looking for the best rates. For your return to Houston Hobby Airport, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Houston to Key Largo?

    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 Houston to Key Largo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo from Houston 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 Houston to Key Largo?

    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 Key Largo with an airline and back to Houston with another airline.

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

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

  • Which airlines provide the cheapest flights from Houston Hobby Airport to Key Largo?

    In the last 5 days, the cheapest one-way ticket between Houston Hobby Airport and Key Largo found on KAYAK was with Frontier for $36. Frontier offered a round-trip connection from $53 and Delta from $98.

Top tips for finding cheap flights from Houston Hobby Airport to Key Largo

  • There is no airport in Key Largo. Instead, you’ll be flying into Miami Airport when flying between Houston Hobby Airport and Key Largo.
  • The cheapest flight from Houston Hobby Airport to Key Largo was found 20 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is October.

Reviews of the top 5 airlines serving Houston to Key Largo

 
Need help choosing which airline to fly with from Houston to Key Largo? 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
SouthwestOverall score based on 4251 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

8.0 ExcellentRobyn, Jul 2026
HOU - DEN
Read more Southwest reviews

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Plz don't take away free bags and free seating

My experience was find with Southwest. The only issue I have is...at the exact time for me to check in...I don't understand how I always end up in C.

With early bird check in, I might start flying southwest again.

Very helpful, convenient, nice crew members, no extra fees, helped us saving 4 hrs of travel by booking is on an earlier flight

Our first flight was so delayed that we had 10 mins to board the next one. We requested if the flight attendant could allow us off there plane first and they denied our request even though I have seen this done before. Luck was on our side that we didn’t miss our next flight.

It was a very good experience. No major issues at all.

It was good. I wish you had gluten free snacks for my husband.

For the expense of first class, the seats could have been nicer and higher tier snacks would have been nice.

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Delayed over an hour due to paperwork not being filed correctly. Forced to change planes.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

I liked everything about the flight. The service was excellent!

Delayed a day due to snow storm. Was upgraded. That kind of made up for significant delays from FLL to COS with no compensation or acknowledgement.

Flight was delayed by 6 hours... the level of incompetence was truly astounding. I won't be flying American Airlines again. I don't care if AA is direct and there is a layover with another airline, I'll take the layover.

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

They changed my seat from one that I had paid for as an upgrade to a regular seat at the last minute.

Very aggressive and unhelpful ground crew. Wanted to check my hand luggage for 3 flights. I had lots of delicate items and computer equipment. So the silly lady wanted to rebook 3 international flights because of a carry on. What nonsense. The baggage handler suggested I put it under my seat - so I did. And this was during the rebooking chaos of the Microsoft crash. She was the most arrogant annoying and aggressive ground staff member I’ve met in 20yrs. (AA flight out of Houston).

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Was as expected. Good leg room on planes - much appreciated.

I know that there is nothing than can be done about rude customers. I did find a couple of them were very rude and inconsiderate In my case the guy who was sitting in the same row as I was in, was trying to watch a movie with no headphones, a crew member did ask him to turn it down or off (thumbs up for that.) Another thing, as we were about to land another young man must have taken his phone off airplane mode was talking with his friends and using fowl language which I found inappropriate to the ppl who were sitting in the same row as him and other ppl around him. I understand how no one wanted to address this person and not get involved. We all just wanted to get home safely with out any incident.

The food service was limited and not good. For a seven hour flight they could do better.

Left 40 mins late; we were fine on our connection but many on our flight were not.

Flight is delayed by more than an hour without any reason, the jet blue gates kept changing every 20 mins and there is no proper communication. No ear phones provided in flight, there is a screen with entertainment but what is the use, I have earphones but the console has outdated audio connections, no usb C or bluetooth, they are living 15 years behind

Flight was cancelled, no support at JFK even though it is their main hub.. wait times on the phone was very long

I liked the punctuality, the crew, and overall the whole flight

When I agreed to give up my two seats because of overbooking by the airline, I should have been offered some sort of reward or credit towards a future flight. I was not. It was not until the next day when I mentioned it to a Jet Blue employee that I was advised to call 1-800-JetBlue. So here I am, having done Jet Blue a favor and I had to do the work to find out if I was going to get a credit. Such service

It's not JetBlues fault but there was a smell on the plane (possibly other travelers) and 3 children behind me that never quit whining. Soccor fans that were very loud. Pilot brought the plane down from high altitude quickly, dropping us hu dress of feet at a time. I've never felt that intense of dropping on other airlines (usually fly Southwest Airlines). But I arrived safely and I'm thankful for that.

Seats were great, the staff was great, and the food was about the best I've had on a plane, and is especially the best of any US-based carrier I've flown. Free Wi-Fi was also great.

The aircraft was fine, it’s was just the service. The flight got canceled several times and that was very inconvenient for my 69 years old mom.

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

We were delayed three times ,and that destroyed my plans, and reservations

The reps working at the airport counter were dumber than a second coat of paint.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Airline changed the gate from Terminal A to Terminal D which is quite far and only sent a text message few minutes before boarding. Around 50 people missed their flight and as plane didn’t wait for them.

Bad experience… crew are extremely strict with personal bags… they overcharge me coz my bag was one inch H

Well I mean u get what u pay for so 🤷‍♂️

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Plane was clean but they do not allow bag drop until 1 hour before flight. Just encouraging late fees and other issues. The worst I have experienced. Total hostage situation, pay or you miss your flight.

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

Flight delayed an hour. The turbulence was insane. Packed in like sardines. A coke was $4.95 no snack or a drink crazy

Everything you need to know for your flight from Houston to Key Largo

Complete your trip to Key Largo with a hotel stay or car rental