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Cheap flights from Southampton to Florida Keys from £492

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — EYW
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 November 2025.

Round-trip from

£492

Popular in

December

Cheapest in

September

Average price

£459
Delta
  • Delta
  • 7/3-11/3
  • 4 total stops
  • 40h 15m total
  • Southampton to Florida Keys
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 6 November 2025.

Thu 18/1209:30SOU - MIA
2 stops37h 00mMultiple Airlines
Thu 25/1207:25MIA - SOU
2 stops27h 10mMultiple Airlines
Deal found 5/11£864
Thu 18/1218:05SOU - MIA
1 stop25h 45mKLM
Thu 25/1216:50MIA - SOU
1 stop19h 10mKLM
Deal found 5/11£979
Tue 23/1217:30SOU - MIA
2 stops36h 01mDelta
Thu 1/107:25MIA - SOU
2 stops28h 35mDelta
Deal found 5/11£1,067
Fri 19/1209:30SOU - MIA
2 stops20h 29mAer Lingus
Fri 26/1219:05MIA - SOU
1 stop32h 40mAer Lingus
Deal found 4/11£1,114
Wed 24/1208:40SOU - MIA
2 stops20h 51mDelta
Thu 1/119:29MIA - SOU
2 stops16h 31mDelta
Deal found 5/11£1,151
Fri 19/1217:30SOU - MIA
3 stops33h 51mMultiple Airlines
Fri 26/1216:40MIA - SOU
3 stops35h 10mMultiple Airlines
Deal found 4/11£1,172
Wed 19/1119:55SOU - MIA
2 stops23h 45mBritish Airways
Mon 24/1117:10MIA - SOU
3 stops15h 55mBritish Airways
Deal found 5/11£1,379

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 6 November 2025.
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

Sat 7/3

09:25-23:20

2 stops18h 55m

Miami

Wed 11/3

07:00-08:20

2 stops21h 20m

£492

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sat 7/3

06:50-19:30

2 stops17h 40m

Miami

Wed 11/3

20:55-19:40

1 stop18h 45m

£737

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Thu 18/12

09:30-17:30

2 stops37h 00m

Miami

Thu 25/12

07:25-15:35

2 stops27h 10m

£864

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Thu 18/12

18:05-14:50

1 stop25h 45m

Miami

Thu 25/12

16:50-17:00

1 stop19h 10m

£979

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Tue 23/12

17:30-00:31

2 stops36h 01m

Miami

Thu 1/1

07:25-17:00

2 stops28h 35m

£1,067

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Fri 19/12

09:30-00:59

2 stops20h 29m

Miami

Fri 26/12

19:05-08:45

1 stop32h 40m

£1,114

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 15/12

20:50-19:30

2 stops27h 40m

£620

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Wed 12/11

08:55-19:30

2 stops15h 35m

£664

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 4/1

20:00-19:30

2 stops28h 30m

£790

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Tue 11/11

08:40-00:46

2 stops21h 06m

£1,140

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 14 results
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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, March is the cheapest month in which you can book a flight from Southampton to Florida Keys (average of £448). Flying from Southampton to Florida Keys in July is currently the most expensive (average of £658). 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 17h 40m. Delta provides one of the quickest options available for as low as £737. 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, March is the cheapest month in which you can book a flight from Southampton to Florida Keys (average of £448). Flying from Southampton to Florida Keys in July is currently the most expensive (average of £658). 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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