£283 Find Cheap Flights from Portsmouth to Key Largo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Key Largo departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flight Deals from Portsmouth to Key Largo

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Key Largo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Portsmouth to Key Largo

KAYAK's recommended return flight deals from the most popular airlines that fly from Portsmouth to Key Largo.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
17:35 - 10:06SOU-MIA
21h 31m2 stops
Delta Logo
11:28 - 17:00MIA-SOU
24h 32m2 stops
£654Delta
Find Deal
Fri, 30 May - Thu, 5 Jun
Delta Logo
17:35 - 10:06SOU-MIA
21h 31m2 stops
Delta Logo
11:10 - 08:45MIA-SOU
16h 35m2 stops
£684Delta
Find Deal
Fri, 30 May - Fri, 6 Jun
Delta Logo
18:25 - 18:07SOU-MIA
28h 42m2 stops
Delta Logo
07:01 - 08:50MIA-SOU
20h 49m2 stops
£746Delta
Find Deal
Sun, 1 Jun - Mon, 9 Jun
Delta Logo
09:20 - 22:46SOU-MIA
18h 26m2 stops
Delta Logo
11:24 - 08:45MIA-SOU
16h 21m2 stops
£776Delta
Find Deal
Sat, 28 Jun - Sat, 5 Jul
Logo
09:20 - 14:45SOU-MIA
34h 25m3 stops
Logo
17:20 - 14:00MIA-SOU
15h 40m2 stops
£944
Find Deal
Sat, 14 Jun - Sat, 21 Jun
Logo
18:50 - 14:20SOU-MIA
24h 30m2 stops
Logo
00:25 - 08:35MIA-SOU
27h 10m2 stops
£1,018
Find Deal
Sat, 14 Jun - Fri, 20 Jun
Logo
09:20 - 14:45SOU-MIA
34h 25m3 stops
Logo
16:30 - 08:45MIA-SOU
35h 15m3 stops
£1,058
Find Deal
Sat, 14 Jun - Sat, 21 Jun
Logo
09:20 - 14:45SOU-MIA
34h 25m3 stops
Logo
00:25 - 08:35MIA-SOU
27h 10m2 stops
£1,071
Find Deal
Sat, 14 Jun - Fri, 20 Jun
Delta Logo
09:20 - 23:19SOU-MIA
18h 59m2 stops
Delta Logo
07:15 - 08:45MIA-SOU
20h 30m2 stops
£1,182Delta
Find Deal
Mon, 2 Jun - Thu, 5 Jun
Useful Info

Good to know - Cheap tickets from Portsmouth to Key Largo

Low seasonSeptember
High seasonApril
Cheapest flight£283
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Southampton to Miami

When to book flights from Portsmouth to Key Largo

Are your dates flexible? Find out the best times to travel from Portsmouth to Key Largo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs - booking Key Largo flights

  • How long is the flight to Key Largo?

    Flights from London9h 15m

  • What is the cheapest flight to Miami?

    In the last 3 days, the cheapest flight deal to Miami was found on the route from Southampton, at £489 return. The most popular connection is from London to Miami and KAYAK users have found return deals for as low as £366 in the last 3 days.

  • Which airlines fly to Miami?

    Many airlines fly to Miami, the most common ones being American Airlines, Virgin Atlantic, and Norse Atlantic UK. See the amount of flights per week for popular airlines flying to Miami.

  • How to fly to Key Largo?

    You cannot fly directly to Key Largo. KAYAK recommends you fly to Miami (MIA) (49.67 miles from Key Largo). From there you can hire a car or take a taxi.

  • What airports are near Key Largo?

    The closest airport is Miami (MIA) (49.67 mi). Other nearby airports are Fort Lauderdale (FLL) (70.19 mi) or Port Royal Bimini (BIM) (84.58 mi). KAYAK recommends you fly to Miami.

  • How far is Miami Airport from central Miami?

    There are 6 miles between Miami city centre and Miami Airport.

  • What is the name of Miami’s airport?

    There is only 1 airport in Miami, called Miami Airport (MIA). It can also be referred to as Miami or Miami Intl.

  • How does KAYAK find such low prices on flights to Key Largo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Key Largo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Key Largo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Key Largo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key Largo with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Key Largo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key Largo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Key Largo

  • There is no major airport in Key Largo. It is instead served by Miami Airport.
  • Looking for cheap airfare to Key Largo? 25% of our users found round-trip tickets to Key Largo for the following prices or less: Cheap flights to Key Largo from Dubai £832
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Key Largo flight deals.

Top airline flying from Portsmouth to Key Largo

Need help choosing which airline to fly with from Portsmouth to Key Largo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1334 reviews
7.8Boarding
8.4Crew
7.2Food
7.1Entertainment
7.7Comfort
Airline reviews

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

8.0 ExcellentAnonymous, Apr 2025AMS - MAN
Read more KLM reviews

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Everything you need to know for your flight from Portsmouth to Key Largo

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