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Cheap flights from Southampton to Florida Keys from £530

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — EYW
21 Mar — 28 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Florida Keys

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Florida Keys
Explore the most affordable flight options available from Southampton to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2026.

Mon 13/417:20
SOU
-
MIA
1 stop26h 25m
KLM
Wed 22/412:13
MIA
-
SOU
2 stops15h 22m
KLM
Deal found 18/2£584
Tue 28/409:05
SOU
-
MIA
2 stops20h 49m
Delta
Wed 6/510:29
MIA
-
SOU
2 stops17h 06m
Delta
Deal found 16/2£622
Mon 9/317:40
SOU
-
MIA
1 stop26h 10m
Delta
Mon 16/312:01
MIA
-
SOU
2 stops16h 19m
Delta
Deal found 16/2£630
Sun 8/317:45
SOU
-
MIA
2 stops28h 43m
Delta
Tue 17/312:00
MIA
-
SOU
2 stops16h 20m
Delta
Deal found 16/2£635
Mon 13/419:20
SOU
-
MIA
2 stops24h 10m
Multiple Airlines
Wed 22/418:15
MIA
-
SOU
3 stops20h 15m
Multiple Airlines
Deal found 18/2£660
Sat 7/317:30
SOU
-
MIA
1 stop26h 20m
Delta
Mon 16/313:13
MIA
-
SOU
2 stops15h 07m
Delta
Deal found 16/2£661
Sat 7/317:30
SOU
-
MIA
1 stop26h 20m
Delta
Sun 15/319:59
MIA
-
SOU
2 stops32h 21m
Delta
Deal found 16/2£665
Tue 3/308:50
SOU
-
MIA
2 stops21h 03m
Virgin Atlantic
Thu 12/312:00
MIA
-
SOU
2 stops16h 20m
Virgin Atlantic
Deal found 17/2£688
Tue 14/409:05
SOU
-
MIA
2 stops20h 49m
Delta
Thu 23/411:18
MIA
-
SOU
2 stops16h 17m
Delta
Deal found 15/2£697
Thu 19/308:50
SOU
-
MIA
2 stops17h 36m
Delta
Tue 7/418:33
MIA
-
SOU
2 stops17h 17m
Delta
Deal found 15/2£701

Find flight deals from Southampton to Florida Keys

Keep the following information in mind while searching for Southampton to Florida Keys flight deals. Data was last updated 19 February 2026.

Round-trip from

£584

One-way from

£530

Popular in

December

Cheapest in

September

Average price

£462
KLM
  • KLM
  • 13/4-22/4
  • 3 total stops
  • 41h 47m total
  • Southampton to Florida Keys
Search Deals
Aer Lingus
  • Aer Lingus
  • 30/3
  • 2 total stops
  • 43h 52m total
  • Southampton to Florida Keys
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Florida Keys that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 February 2026.
Use the filters below to find and compare flights from Southampton to Florida Keys that are best for you.

Fly from

Southampton

Fly to

Florida Keys

Route

Depart

Return

Price

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 13/4

17:20-14:45

1 stop26h 25m

Miami

Wed 22/4

12:13-08:35

2 stops15h 22m

£584

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Wed 29/4

09:05-00:54

2 stops20h 49m

Miami

Wed 6/5

07:04-08:35

2 stops20h 31m

£622

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 9/3

17:40-15:50

1 stop26h 10m

Miami

Tue 17/3

11:23-17:00

2 stops25h 37m

£630

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 8/3

17:45-18:54

2 stops29h 09m

Miami

Tue 17/3

17:50-17:00

1 stop19h 10m

£635

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 9/3

08:50-22:26

2 stops17h 36m

Miami

Sun 15/3

19:59-08:20

2 stops32h 21m

£635

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 8/3

17:45-18:28

2 stops28h 43m

Miami

Sun 15/3

19:59-08:20

2 stops32h 21m

£635

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 13/4

19:20-14:30

2 stops24h 10m

Miami

Wed 22/4

18:15-19:30

3 stops20h 15m

£660

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sat 7/3

17:30-14:50

1 stop26h 20m

Miami

Tue 17/3

12:00-08:20

2 stops16h 20m

£661

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sat 7/3

17:30-14:50

1 stop26h 20m

Miami

Mon 16/3

13:13-08:20

2 stops15h 07m

£661

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 30/3

17:05-07:57

2 stops43h 52m

£530

Flights are sorted by cheapest return flights first.

Deals found on 15/2

Showing 1-10 of 18 results
1
2

Best time to book a flight from Southampton to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Southampton 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.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Florida Keys

What is the cheapest month to book a flight from Southampton to Florida Keys?

Currently, September is the cheapest month in which you can book a flight from Southampton to Florida Keys (average of £447). Flying from Southampton to Florida Keys in June is currently the most expensive (average of £619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Southampton to Florida Keys?

    For a flight from Southampton to Florida Keys, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

  • How long is the flight from Southampton to Florida Keys?

    A quick flight from Southampton to Florida Keys can take about 20h 49m. KLM provides one of the quickest options available for as low as £622. Airlines will cover a distance of 4381 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Southampton to Florida Keys that include hotel bookings?

    Yes. In addition to deals on Southampton to Florida Keys flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southampton to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Florida Keys.

  • Can I find deals for business class flights from Southampton to Florida Keys?

    Yes. Cheapflights offers flight deals from Southampton to Florida Keys by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Southampton to Florida Keys?

    Currently, September is the cheapest month in which you can book a flight from Southampton to Florida Keys (average of £447). Flying from Southampton to Florida Keys in June is currently the most expensive (average of £619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 Southampton to Florida Keys?

Deals for Southampton to Florida Keys flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Florida Keys?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southampton to Florida Keys for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southampton to Florida Keys with no change fees?

Need flexible booking options for your flight to Florida Keys from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to Florida Keys become cheaper?

Of course! You can now track prices for flights from Southampton to Florida Keys and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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