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$305+ Cheap flights from Key Largo, FL to Southampton (SOU)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOU
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Key Largo to Southampton

Keep the following information in mind while searching for Key Largo to Southampton flight deals. Data was last updated July 31, 2025.

Round-trip from

$705
(Mytrip)

One-way from

$305
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$1,299
From Key Largo to Southampton Eastleigh
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One-way flight from Key Largo to Southampton Eastleigh
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Highest demand for flights based on searches. 3% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($70 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Key Largo to Southampton

Cheapest flights from Key Largo to Southampton
Explore the most affordable flight options available from Key Largo to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:35 pmMIA - SOU
3 stops21h 45mMultiple Airlines
Mon 11/1711:40 amSOU - MIA
3 stops32h 10mMultiple Airlines
Deal found 7/31$705
This Ticket deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:00 amMIA - SOU
2 stops44h 10mVirgin Atlantic
Mon 11/176:05 pmSOU - MIA
1 stop25h 45mVirgin Atlantic
Deal found 7/31$833
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:20 pmMIA - SOU
2 stops15h 25mDelta
Wed 10/298:40 amSOU - MIA
1 stop35h 10mDelta
Deal found 7/31$884
This KLM deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/611:25 amMIA - SOU
2 stops16h 20mKLM
Mon 9/159:20 amSOU - MIA
2 stops17h 03mKLM
Deal found 7/31$994

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Southampton 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 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Key Largo to Southampton that are best for you.

Fly from

Key Largo

Fly to

Southampton

Route

Depart

Return

Price

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Sun 9/7

9:54 am-9:10 am

2 stops18h 16m

Southampton Eastleigh

Mon 9/15

8:05 am-2:45 pm

2 stops35h 40m

$826

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Tue 10/14

12:20 pm-8:45 am

2 stops15h 25m

Southampton Eastleigh

Wed 10/29

8:40 am-3:50 pm

1 stop35h 10m

$884

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Sat 9/6

11:25 am-8:45 am

2 stops16h 20m

Southampton Eastleigh

Mon 9/15

9:20 am-9:23 pm

2 stops17h 03m

$994

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Fri 8/15

5:00 pm-1:20 pm

2 stops15h 20m

Southampton Eastleigh

Thu 8/21

7:40 pm-2:25 pm

2 stops23h 45m

$3,430

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Sat 9/13

5:20 pm-7:35 am

2 stops33h 15m

$305

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Tue 10/28

5:50 pm-5:00 pm

1 stop19h 10m

$529

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Sat 9/13

3:50 pm-9:10 am

2 stops36h 20m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Key Largo to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Key Largo with our price prediction graph.
Estimated round-trip 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 Key Largo to Southampton

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Southampton (average of $787). Flying from Key Largo to Southampton in June is currently the most expensive (average of $1,308). 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.

What is the cheapest time of day to fly from KE9 to SOU?

Find hourly flight availability from Key Largo to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Key Largo to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic from Key Largo to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
British Airways
6.6
Okay
7,222 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Southampton. 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 into for flights to Southampton from Key Largo?

    Southampton Eastleigh (SOU) is the airport you will fly into if you book a flight from Key Largo to Southampton. You should not have trouble finding flights to Eastleigh from Key Largo; the airport handles an average of 0 inbound flights from Key Largo per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Southampton airport from Key Largo. It is only a 3.5 mi journey from Eastleigh (SOU) to Southampton’s city center.

  • Can I find deals for flights from Key Largo to Southampton that include hotel bookings?

    Yes. In addition to deals on Key Largo to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Southampton?

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

  • Can I find deals for business class flights from Key Largo to Southampton?

    Yes. Cheapflights offers flight deals from Key Largo to Southampton 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 Key Largo to Southampton?

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Southampton (average of $787). Flying from Key Largo to Southampton in June is currently the most expensive (average of $1,308). 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

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Top airline flying from Key Largo to Southampton

Discover the top airline that operate flights from Key Largo to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$697Average$1,050FlexibilityNo cancel feeOn-timeN/A

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