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$504+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOU
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
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 octubre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$869
(Delta)

One-way from

$504
(Delta)

Popular in

March

Cheapest in

September

Average price

$1,545
Provider with most accurate pricing for Miami-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Miami-London (LON) flights.
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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. 5% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($71 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 30, 2025.

This Air France deal was found by Cheapflights users on 10/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/134:50 pmMIA - SOU
1 stop19h 10mKLM
dom. 11/169:30 amSOU - MIA
2 stops18h 43mKLM
Deal found 10/30$1,000
This Delta deal was found by Cheapflights users on 10/29. 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.
mar. 11/44:50 pmMIA - SOU
1 stop19h 10mDelta
dom. 11/96:05 pmSOU - MIA
2 stops35h 41mDelta
Deal found 10/29$1,075
This KAYAK deal was found by Cheapflights users on 10/29. 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.
mié. 11/56:55 pmMIA - SOU
1 stop15h 40mAer Lingus
dom. 11/99:30 amSOU - MIA
1 stop12h 40mAer Lingus
Deal found 10/29$1,188
This Delta deal was found by Cheapflights users on 10/29. 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.
mar. 12/236:00 amMIA - SOU
2 stops30h 00mDelta
jue. 1/18:50 amSOU - MIA
2 stops19h 16mDelta
Deal found 10/29$1,229
This Trip.com deal was found by Cheapflights users on 10/28. 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.
vie. 12/124:50 pmMIA - SOU
1 stop11h 00mVirgin Atlantic
vie. 12/195:30 pmSOU - MIA
2 stops35h 01mVirgin Atlantic
Deal found 10/28$1,256
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/127:05 pmMIA - SOU
1 stop32h 40mAer Lingus
vie. 12/199:30 amSOU - MIA
2 stops18h 34mAer Lingus
Deal found 10/28$1,258
This Mytrip deal was found by Cheapflights users on 10/28. 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.
vie. 12/1210:19 amMIA - SOU
3 stops23h 31mMultiple Airlines
vie. 12/199:30 amSOU - MIA
3 stops28h 45mMultiple Airlines
Deal found 10/28$1,278
This Delta deal was found by Cheapflights users on 10/29. 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.
jue. 12/254:50 pmMIA - SOU
1 stop19h 10mDelta
jue. 1/18:50 amSOU - MIA
2 stops19h 16mDelta
Deal found 10/29$1,284
This Mytrip deal was found by Cheapflights users on 10/30. 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.
jue. 11/131:02 pmMIA - SOU
3 stops25h 18mMultiple Airlines
dom. 11/169:30 amSOU - MIA
2 stops34h 10mMultiple Airlines
Deal found 10/30$1,286

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 octubre 30, 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

lun. 4/6

7:30 am-5:00 pm

2 stops28h 30m

Southampton Eastleigh

lun. 4/27

5:35 pm-5:09 pm

2 stops28h 34m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

lun. 4/6

1:45 pm-5:00 pm

2 stops22h 15m

Southampton Eastleigh

mar. 4/28

5:35 pm-5:09 pm

2 stops28h 34m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

lun. 4/6

7:30 am-5:00 pm

2 stops28h 30m

Southampton Eastleigh

jue. 4/30

5:35 pm-5:09 pm

2 stops28h 34m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mié. 4/8

12:01 pm-5:00 pm

2 stops23h 59m

Southampton Eastleigh

vie. 5/1

5:35 pm-10:13 am

2 stops21h 38m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mié. 4/8

6:30 pm-5:00 pm

2 stops17h 30m

Southampton Eastleigh

mar. 4/28

9:20 am-10:53 pm

2 stops18h 33m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mar. 4/7

8:45 am-5:00 pm

2 stops27h 15m

Southampton Eastleigh

vie. 5/1

5:35 pm-10:13 am

2 stops21h 38m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

lun. 4/6

7:30 pm-5:00 pm

2 stops16h 30m

Southampton Eastleigh

vie. 5/1

5:35 pm-10:13 am

2 stops21h 38m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

mar. 4/7

8:45 am-5:00 pm

2 stops27h 15m

Southampton Eastleigh

mié. 4/29

5:35 pm-10:13 am

2 stops21h 38m

$869

MiamiSouthampton

MIA - SOU

MIASOU

Miami

sáb. 4/11

7:55 pm-8:50 am

2 stops31h 55m

Southampton Eastleigh

mié. 4/29

5:35 pm-10:45 am

2 stops22h 10m

$876

MiamiSouthampton

MIA - SOU

MIASOU

Miami

sáb. 4/11

7:55 pm-8:50 am

2 stops31h 55m

Southampton Eastleigh

lun. 4/27

5:35 pm-5:09 pm

2 stops28h 34m

$876

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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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, January is the cheapest month in which you can book a flight from Key Largo to Southampton (average of $286). Flying from Key Largo to Southampton in June is currently the most expensive (average of $493). 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 octubre 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 26% on flights from Key Largo to Southampton by exploring options for tickets at noon.

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 octubre 30, 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
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

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
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

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.

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

    Departing from Key Largo to Southampton will take you 28h 30m. 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, January is the cheapest month in which you can book a flight from Key Largo to Southampton (average of $286). Flying from Key Largo to Southampton in June is currently the most expensive (average of $493). 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$546Average$1,137FlexibilityNo cancel feeOn-timeN/A

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