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Cheap flights from London, ON to Key Largo from C$ 377

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — MIA
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from London to Key Largo
Explore the most affordable flight options available from London to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.

Fri 20/115:30 a.m. -
1 stop5h 39m
Sat 28/117:20 a.m. -
1 stop7h 27m
Deal found 7/8C$ 583
Sat 5/93:30 p.m. -
1 stop5h 18m
Fri 11/97:55 a.m. -
2 stops13h 45m
Deal found 6/8C$ 678
Mon 5/105:40 a.m. -
1 stop6h 34m
Wed 7/108:15 a.m. -
2 stops9h 30m
Deal found 3/8C$ 790
Mon 24/85:40 a.m. -
1 stop15h 08m
Sun 30/87:10 a.m. -
2 stops14h 30m
Deal found 6/8C$ 821
Sat 28/115:30 a.m. -
1 stop5h 39m
Sun 6/127:25 a.m. -
1 stop7h 17m
Deal found 3/8C$ 860

Find flight deals from London to Key Largo

Keep the following information in mind while searching for London to Key Largo flight deals. Data was last updated 8 August 2026.

Round-trip from

C$ 561

One-way from

C$ 377
Air Canada
  • Air Canada
  • 12/1-13/1
  • 2 total stops
  • 12h 56m total
  • London to Key Largo
Search Deals
Air Canada
  • Air Canada
  • 4/9
  • 1 total stop
  • 5h 18m total
  • London to Key Largo
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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 629,999 searches. Data last updated 8 August 2026.
Use the filters below to find and compare flights from London to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Tue 12/1

5:30 a.m.-11:09 a.m.

1 stop5h 39m

Miami

Wed 13/1

7:25 a.m.-2:42 p.m.

1 stop7h 17m

C$ 562

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Sat 5/9

3:30 p.m.-8:48 p.m.

1 stop5h 18m

Miami

Fri 11/9

7:55 a.m.-9:40 p.m.

2 stops13h 45m

C$ 678

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Tue 12/1

5:30 a.m.-5:35 p.m.

2 stops12h 05m

Miami

Wed 13/1

8:45 a.m.-9:47 p.m.

3 stops13h 02m

C$ 717

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Mon 5/10

5:40 a.m.-12:14 p.m.

1 stop6h 34m

Miami

Wed 7/10

8:15 a.m.-5:45 p.m.

2 stops9h 30m

C$ 893

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Mon 24/8

5:40 a.m.-10:11 p.m.

2 stops16h 31m

Miami

Sun 30/8

7:10 a.m.-9:40 p.m.

2 stops14h 30m

C$ 932

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Sat 2/1

5:30 a.m.-11:09 a.m.

1 stop5h 39m

Miami

Sun 4/4

9:05 p.m.-11:44 a.m.

1 stop14h 39m

C$ 1,007

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Tue 17/11

5:30 a.m.-7:41 p.m.

2 stops14h 11m

Miami

Thu 10/12

6:20 a.m.-9:47 p.m.

2 stops15h 27m

C$ 1,095

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Sat 5/9

5:40 a.m.-6:52 p.m.

3 stops13h 12m

Miami

Fri 11/9

12:17 p.m.-9:40 p.m.

2 stops9h 23m

C$ 1,188
Cheapest one-way

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Tue 3/11

5:30 a.m.-11:09 a.m.

1 stop5h 39m

C$ 422

LondonMiami

YXU London - MIA Miami

YXUMIA

London

Fri 4/9

5:40 a.m.-2:54 p.m.

2 stops9h 14m

C$ 422

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from London to Key Largo

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

No data available for this route at this time. Please check back soon.

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 8 August 2026.
Check out reviews from past customers who have flown with Air Canada from London to Key Largo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,434 reviews
Check prices

Crew

7.8

Overall

7.1

Food

6.3

Comfort

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
11,434 reviews
Air Canada
7.1
Good
11,434 reviews
Check prices

Crew

7.8

Overall

7.1

Food

6.3

Comfort

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Related info for your journey

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

    London (YXU), located 8.6 km from the city centre, is the airport you fly out of when you book flights from London to Key Largo. 1 airline have flights from London to Key Largo on a regular basis. Booking flights from London 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 London, Ontario to Key Largo?

    A quick flight from London, Ontario to Key Largo can take about 5h 39m. Air Canada provides one of the quickest options available for as low as C$ 562. London, Ontario and Key Largo are separated by a distance of 1917 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

See more FAQs

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Top airline flying from London to Key Largo

Discover the top airline that operate flights from London 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 629,999 searches. Data last updated 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 463AverageC$ 694FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from London to Key Largo by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from London to Key Largo with no change fees.

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Of course! You can now track prices for flights from London to Key Largo and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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