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Cheap flights from Cardiff to Key Largo from £656

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — MIA
23 Apr — 30 Apr1
1 adult

Cheap flight deals from Cardiff to Key Largo

Keep the following information in mind while searching for Cardiff to Key Largo flight deals. Data was last updated 18 April 2025.

Round-trip from

£656

Popular in

July

Cheapest in

January

Average price

£636
5/5-9/5
  • 5/5-9/5
  • 4 total stops
  • 50h 28m total
  • Cardiff to Key Largo
Search Deals
Highest demand for flights based on searches. 43% potential increase in price (£472 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 23% potential price decrease (£114 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Cardiff to Key Largo

Cheapest flights from Cardiff to Key Largo
Explore the most affordable flight options available from Cardiff to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2025.

Mon 5/509:50CWL - MIA
2 stops19h 58mMultiple Airlines
Fri 9/505:35MIA - CWL
2 stops30h 30mMultiple Airlines
Deal found 17/4£656
Mon 5/517:15CWL - MIA
1 stop25h 40mKLM
Fri 9/519:40MIA - CWL
2 stops16h 25mKLM
Deal found 17/4£1,041

Cheapflights Fare Finder

Customise your flight search to find flights from Cardiff to Key Largo 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 18 April 2025.
Use the filters below to find and compare flights from Cardiff to Key Largo that are best for you.

Fly from

Cardiff

Fly to

Key Largo

Route

Depart

Return

Price

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Mon 5/5

09:50-00:48

2 stops19h 58m

Miami

Fri 9/5

05:35-17:05

2 stops30h 30m

£656

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Mon 5/5

17:15-13:55

1 stop25h 40m

Miami

Fri 9/5

19:40-17:05

2 stops16h 25m

£1,041

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Sun 4/5

09:50-18:54

2 stops38h 04m

£1,142

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Best time to book a flight from Cardiff to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Cardiff 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 Cardiff to Key Largo

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

Currently, January is the cheapest month in which you can book a flight from Cardiff to Key Largo (average of £559). Flying from Cardiff to Key Largo in July is currently the most expensive (average of £760). 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.

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 41.0 - 252.0 inches per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Key Largo when rainfall is around 41.0 mm.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated 18 April 2025.
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Key Largo. 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 Cardiff to Key Largo?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly out of when you book flights from Cardiff to Key Largo. 1 airline have flights from Cardiff Wales to Key Largo on a regular basis. Booking flights from Cardiff Wales to Key Largo should not be difficult; the airport handles an average of 0 outbound flights to Key Largo per day.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Cardiff to Key Largo (average of £559). Flying from Cardiff to Key Largo in July is currently the most expensive (average of £760). 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 Cardiff to Key Largo

Discover the top airline that operate flights from Cardiff to Key Largo. 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 858,174 searches. Data last updated 18 April 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£462Average£700FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Cardiff to Key Largo?

Cheapflights makes it easy to find Cardiff to Key Largo flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Key Largo?

Millions of users choose and trust Cheapflights to book the best flight deals from Cardiff to Key Largo for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Cardiff to Key Largo with no change fees?

Certainly. Search results for flights to Key Largo from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cardiff to Key Largo become cheaper?

Yes! Start tracking prices for Cardiff to Key Largo flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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