Cheap flights from Cardiff to Key Largo from £483

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — MIA
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

£483
KLM
  • KLM
  • 29/10-5/11
  • 4 total stops
  • 43h 50m total
  • Cardiff to Key Largo

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 16 September 2025.

Wed 29/1010:20CWL - MIA
2 stops27h 15mKLM
Wed 5/1112:15MIA - CWL
2 stops16h 35mKLM
Deal found 14/9£483
Wed 29/1017:25CWL - MIA
1 stop26h 25mVirgin Atlantic
Wed 5/1114:27MIA - CWL
2 stops21h 28mVirgin Atlantic
Deal found 14/9£508
Thu 30/1017:25CWL - MIA
2 stops51h 45mVirgin Atlantic
Thu 6/1107:05MIA - CWL
2 stops21h 45mVirgin Atlantic
Deal found 15/9£516
Thu 30/1010:20CWL - MIA
1 stop33h 30mKLM
Thu 6/1120:00MIA - CWL
2 stops15h 45mKLM
Deal found 15/9£647
Wed 29/1017:25CWL - MIA
3 stops32h 38mMultiple Airlines
Wed 5/1112:02MIA - CWL
3 stops23h 53mMultiple Airlines
Deal found 14/9£652
Thu 30/1017:25CWL - MIA
3 stops33h 10mMultiple Airlines
Thu 6/1111:07MIA - CWL
3 stops29h 53mMultiple Airlines
Deal found 15/9£690
Thu 18/1217:25CWL - MIA
2 stops32h 26mVirgin Atlantic
Thu 1/106:25MIA - CWL
2 stops22h 25mVirgin Atlantic
Deal found 14/9£1,111

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 16 September 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

Wed 29/10

10:20-09:35

2 stops27h 15m

Miami

Wed 5/11

12:15-09:50

2 stops16h 35m

£483

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Wed 29/10

17:25-15:50

1 stop26h 25m

Miami

Wed 5/11

14:27-16:55

2 stops21h 28m

£508

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 30/10

17:25-17:10

2 stops51h 45m

Miami

Thu 6/11

07:05-09:50

2 stops21h 45m

£516

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Fri 6/3

10:20-16:44

2 stops35h 24m

Miami

Mon 9/3

08:05-16:55

2 stops28h 50m

£548

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Fri 6/3

10:20-10:56

2 stops29h 36m

Miami

Mon 9/3

17:59-09:50

2 stops35h 51m

£548

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 30/10

10:20-15:50

1 stop33h 30m

Miami

Thu 6/11

20:00-16:45

2 stops15h 45m

£647

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 30/10

17:25-22:35

3 stops33h 10m

Miami

Thu 6/11

11:07-22:00

3 stops29h 53m

£690

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 1/1

08:35-22:00

3 stops18h 25m

£631

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 1/1

08:35-19:30

2 stops15h 55m

£723

CardiffMiami

CWL - MIA

CWLMIA

Cardiff Wales

Thu 1/1

17:25-14:50

1 stop26h 25m

£1,157

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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.

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. 0 airlines 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.

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

    There are many flights that can get you from Cardiff to Key Largo in 26h 25m. Fly via KLM or Virgin Atlantic to get the fastest option. The distance between Cardiff and Key Largo is about 4292 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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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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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