Find flights
Deals
Airlines

£51+ Cheap flights from Key Largo

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. 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.
MIA — LHR
8 Mar — 15 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Key Largo

Discover essential information about flights departing from Key Largo, including flight schedules, destinations, airlines operating at the Key Largo airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 6 February 2026.

Cheapest one-way flight

£39

Cheapest round-trip flight

£305

Cheapest airline

Delta

Most popular destination

London Heathrow (LHR)
The cheapest one-way flight from Key Largo is currently to New York LaGuardia.
Search Deals
The cheapest round-trip flight from Key Largo is currently to London Heathrow.
Search Deals
On average, Delta currently has the cheapest one-way flight from Key Largo (avg. price of £179).
Search Deals
London Heathrow (LHR) is currently the most popular flight destination from Key Largo (average return price of £376).
Search Deals

Find flights from Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from Key Largo
Explore the most affordable flight options available from Key Largo. Find the lowest fares based on data from user searches, with prices last updated on 6 February 2026.

Tue 10/305:30
MIA
-
HOU
Nonstop2h 55m
Southwest
Tue 10/314:45
HOU
-
MIA
Nonstop2h 15m
Southwest
Deal found 4/2£116
Sat 7/319:10
MIA
-
HOU
Nonstop3h 00m
Southwest
Mon 9/314:45
HOU
-
MIA
Nonstop2h 15m
Southwest
Deal found 2/2£130
Tue 7/406:15
MIA
-
HOU
Nonstop2h 50m
Southwest
Tue 14/415:05
HOU
-
MIA
Nonstop2h 15m
Southwest
Deal found 5/2£138
Wed 18/305:30
MIA
-
HOU
Nonstop2h 55m
Southwest
Tue 24/314:45
HOU
-
MIA
Nonstop2h 15m
Southwest
Deal found 4/2£139
Wed 4/306:00
MIA
-
HOU
1 stop5h 01m
Delta
Wed 11/306:00
HOU
-
MIA
1 stop5h 08m
Delta
Deal found 3/2£145
Wed 4/307:15
MIA
-
HOU
2 stops13h 25m
Southwest
Wed 11/314:45
HOU
-
MIA
Nonstop2h 15m
Southwest
Deal found 4/2£146
Tue 14/406:00
MIA
-
HOU
1 stop7h 40m
Delta
Tue 28/410:46
HOU
-
MIA
1 stop5h 24m
Delta
Deal found 3/2£146
Wed 8/410:26
MIA
-
HOU
1 stop7h 06m
Delta
Wed 22/417:23
HOU
-
MIA
1 stop6h 31m
Delta
Deal found 3/2£150
Tue 24/220:40
MIA
-
MAN
1 stop31h 50m
Scandinavian Airlines
Fri 27/209:25
MAN
-
MIA
2 stops38h 10m
Scandinavian Airlines
Deal found 4/2£395
Wed 4/316:40
MIA
-
MAN
2 stops18h 15m
Multiple Airlines
Sat 7/319:00
MAN
-
MIA
2 stops27h 30m
Multiple Airlines
Deal found 4/2£421
Tue 3/321:45
MIA
-
STN
2 stops19h 40m
Multiple Airlines
Tue 10/305:55
STN
-
MIA
2 stops18h 35m
Multiple Airlines
Deal found 3/2£424
Tue 3/316:40
MIA
-
LHR
1 stop18h 40m
SWISS
Tue 10/309:00
LHR
-
MIA
1 stop13h 30m
SWISS
Deal found 3/2£426

Find flights from Key Largo within your budget

 
Find flights departing from Key Largo that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 6 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 10/3

05:30-07:25

Nonstop2h 55m

Houston Hobby

Wed 11/3

14:45-18:00

Nonstop2h 15m

£116

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 7/4

06:15-08:05

Nonstop2h 50m

Houston Hobby

Wed 8/4

15:05-18:20

Nonstop2h 15m

£139

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 18/3

05:30-07:25

Nonstop2h 55m

Houston Hobby

Tue 24/3

14:45-18:00

Nonstop2h 15m

£139

MiamiHouston

MIA - HOU

MIAHOU

Miami

Thu 5/3

05:10-07:05

Nonstop2h 55m

Houston Hobby

Tue 10/3

14:45-18:00

Nonstop2h 15m

£145

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 29/4

12:12-16:28

1 stop5h 16m

Houston Hobby

Tue 5/5

06:00-12:11

1 stop5h 11m

£146

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 7/4

06:00-10:23

1 stop5h 23m

Houston Hobby

Wed 8/4

17:27-00:52

1 stop6h 25m

£154

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 25/2

06:00-10:01

1 stop5h 01m

Houston Hobby

Wed 18/3

14:13-20:50

1 stop5h 37m

£157

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 18/3

05:30-07:25

Nonstop2h 55m

Houston Hobby

Mon 23/3

14:45-18:00

Nonstop2h 15m

£157

MiamiHouston

MIA - HOU

MIAHOU

Miami

Thu 9/4

07:05-13:28

1 stop7h 23m

Houston Hobby

Wed 22/4

17:23-00:54

1 stop6h 31m

£168

MiamiHouston

MIA - HOU

MIAHOU

Miami

Sat 28/2

18:50-20:55

Nonstop3h 05m

Houston Hobby

Sun 1/3

07:50-18:40

1 stop9h 50m

£172

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Key Largo

Have a flexible travel schedule? Discover the best time to fly from Key Largo with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Key Largo

Get recent, data-driven insights about flights from Key Largo including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Key Largo?

Use this chart to determine the optimal time to book a return flight from Key Largo to Heathrow. Price data was last updated on 30 January 2026.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo?

Currently, January is the cheapest month in which you can book a flight from Key Largo (average of £209). Flying from Key Largo in June will prove the most costly (average of £451). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Key Largo?

Many airlines operate round-trip flights from Key Largo: Virgin Atlantic, British Airways, American Airlines, KLM, Finnair. These airlines fly to the following popular destinations: London.

American Airlines
American Airlines
From £72
Virgin Atlantic
Virgin Atlantic
From £281
British Airways
British Airways
From £282
Avianca
Avianca
From £88

Airline reviews for flights from Key Largo

Get insights into the airlines that provide service from Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Key Largo. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Get a feel of what it's like to fly with KLM, Finnair, andVirgin Atlantic from Key Largo by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,449 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Finnair
7.6
Good
1,357 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
American Airlines
7.2
Good
11,242 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,716 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.7

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from Key Largo. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 6 February 2026.

  • What is the cheapest airport to fly out of Key Largo?

    Birmingham airport offers the cheapest routes to Accra, from £18; whereas Geneva Geneve-Cointrin airport is typically cheaper if you're flying to Edinburgh, from £20. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Key Largo?

    At the present moment the cheapest month to fly from Key Largo is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Key Largo?

    Check out the cheapest flights from Key Largo to embark to:
    Travel from Birmingham to Dublin from £18 round trip
    Travel from Geneva to Manchester from £20 round trip
    Travel from Oslo to London from £23 round trip
    Travel from London to Gdansk from £24 round trip
    Travel from London to Wroclaw from £26 round trip

  • How does Cheapflights help users find flights from Key Largo?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from Key Largo?

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Key Largo.

  • Can Cheapflights find flights from Key Largo with no change fees?

    Certainly. Search results for flights from Key Largo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Key Largo become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Key Largo?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Key Largo.

Can Cheapflights find flights from Key Largo with no change fees?

Certainly. Search results for flights from Key Largo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Key Largo become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.