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$533+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOU
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
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 septembre 15, 2025.

Round-trip from

$764
(Trip.com)

One-way from

$533
(Delta)

Popular in

March

Cheapest in

September

Average price

$787
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. 4% potential increase in price ($52 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 September 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 septembre 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/305:40 pmMIA - SOU
2 stops22h 00mMultiple Airlines
jeu. 11/68:10 pmSOU - MIA
2 stops23h 30mMultiple Airlines
Deal found 9/14$764
This Ovago deal was found by Cheapflights users on 9/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/306:35 amMIA - SOU
2 stops22h 10mAer Lingus
jeu. 11/68:10 pmSOU - MIA
1 stop26h 00mAer Lingus
Deal found 9/14$899
This Mytrip deal was found by Cheapflights users on 9/13. 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.
lun. 10/139:49 amMIA - SOU
3 stops28h 41mMultiple Airlines
lun. 10/209:40 amSOU - MIA
2 stops34h 05mMultiple Airlines
Deal found 9/13$939
This Delta deal was found by Cheapflights users on 9/13. 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.
lun. 10/1311:16 amMIA - SOU
2 stops16h 29mDelta
lun. 10/209:20 amSOU - MIA
2 stops17h 07mDelta
Deal found 9/13$980
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 12/147:05 pmMIA - SOU
1 stop19h 35mAer Lingus
mar. 1/64:05 pmSOU - MIA
1 stop30h 55mAer Lingus
Deal found 9/14$995
This Delta deal was found by Cheapflights users on 9/14. 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.
dim. 12/144:50 pmMIA - SOU
1 stop19h 35mDelta
mar. 1/65:30 pmSOU - MIA
2 stops28h 14mDelta
Deal found 9/14$1,041

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 septembre 15, 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

jeu. 10/30

5:40 pm-7:40 pm

2 stops22h 00m

Southampton Eastleigh

jeu. 11/6

8:10 pm-2:40 pm

2 stops23h 30m

$764

MiamiSouthampton

MIA - SOU

MIASOU

Miami

jeu. 10/30

6:35 am-8:45 am

2 stops22h 10m

Southampton Eastleigh

jeu. 11/6

8:10 pm-5:10 pm

1 stop26h 00m

$899

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mer. 2/25

7:55 pm-8:45 am

1 stop31h 50m

Southampton Eastleigh

dim. 3/1

9:30 am-6:00 pm

1 stop13h 30m

$915

MiamiSouthampton

MIA - SOU

MIASOU

Miami

jeu. 2/5

1:46 pm-3:35 pm

2 stops20h 49m

Southampton Eastleigh

dim. 2/15

9:30 am-6:00 pm

1 stop13h 30m

$938

MiamiSouthampton

MIA - SOU

MIASOU

Miami

jeu. 3/5

4:50 pm-5:00 pm

1 stop19h 10m

Southampton Eastleigh

lun. 3/9

8:50 am-3:50 pm

1 stop35h 00m

$939

MiamiSouthampton

MIA - SOU

MIASOU

Miami

lun. 10/13

9:49 am-7:30 pm

3 stops28h 41m

Southampton Eastleigh

lun. 10/20

9:40 am-2:45 pm

2 stops34h 05m

$939

MiamiSouthampton

MIA - SOU

MIASOU

Miami

jeu. 3/5

8:05 am-8:05 am

2 stops19h 00m

Southampton Eastleigh

lun. 3/9

5:30 pm-3:50 pm

1 stop26h 20m

$943

MiamiSouthampton

MIA - SOU

MIASOU

Miami

lun. 10/13

11:16 am-5:00 pm

2 stops24h 44m

$533

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mar. 10/14

12:05 pm-8:45 am

2 stops15h 40m

$533

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mer. 10/15

7:05 am-5:00 pm

2 stops28h 55m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
1
2

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 septembre 15, 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 septembre 15, 2025.
Read reviews from past customers who have flown Delta 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
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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.

  • How long is the flight from Key Largo to Southampton?

    Departing from Key Largo to Southampton will take you 22h 10m. The distance between Key Largo and Southampton is about 4381 mi.

  • 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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$546Average$1,050FlexibilityNo cancel feeOn-timeN/A

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