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Cheap flights from St. John's to Key Largo from C$ 354

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — MIA
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. John's to Key Largo

Keep the following information in mind while searching for St. John's to Key Largo flight deals. Data was last updated 6 November 2025.

Round-trip from

C$ 570

One-way from

C$ 354

Popular in

April

Cheapest in

September

Average price

C$ 987
Air Canada
  • Air Canada
  • 16/3-20/3
  • 2 total stops
  • 15h 55m total
  • St. John's to Key Largo
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Air Canada
  • Air Canada
  • 26/11
  • 1 total stop
  • 8h 04m total
  • St. John's to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from St. John's to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from St. John's to Key Largo
Explore the most affordable flight options available from St. John's to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Sat 13/121:30 p.m.YYT - MIA
2 stops22h 51mUnited Airlines
Mon 22/126:20 a.m.MIA - YYT
2 stops28h 45mUnited Airlines
Deal found 5/11C$ 780
Sat 13/126:20 a.m.YYT - MIA
3 stops18h 31mMultiple Airlines
Mon 22/129:59 p.m.MIA - YYT
3 stops25h 34mMultiple Airlines
Deal found 5/11C$ 866
Sat 13/121:30 p.m.YYT - MIA
1 stop12h 16mAir Canada
Mon 22/127:25 a.m.MIA - YYT
1 stop16h 58mAir Canada
Deal found 5/11C$ 968
Fri 7/116:35 a.m.YYT - MIA
2 stops14h 08mUnited Airlines
Sat 15/116:45 a.m.MIA - YYT
2 stops17h 18mUnited Airlines
Deal found 6/11C$ 1,899
Fri 7/116:35 a.m.YYT - MIA
2 stops14h 08mAir Canada
Sat 15/118:00 a.m.MIA - YYT
1 stop7h 51mAir Canada
Deal found 6/11C$ 2,050
Fri 7/116:00 a.m.YYT - MIA
2 stops32h 39mPorter Airlines
Sat 15/112:10 p.m.MIA - YYT
2 stops33h 21mPorter Airlines
Deal found 5/11C$ 3,572

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. John's 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 6 November 2025.
Use the filters below to find and compare flights from St. John's to Key Largo that are best for you.

Fly from

St. John's

Fly to

Key Largo

Route

Depart

Return

Price

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 16/3

5:05 a.m.-11:39 a.m.

1 stop8h 04m

Miami

Fri 20/3

8:00 a.m.-5:21 p.m.

1 stop7h 51m

C$ 570

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 23/4

1:25 p.m.-11:23 a.m.

2 stops23h 28m

Miami

Wed 6/5

7:35 p.m.-5:22 p.m.

2 stops20h 17m

C$ 672

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 23/4

6:10 p.m.-11:18 a.m.

1 stop18h 38m

Miami

Wed 6/5

8:10 a.m.-10:23 p.m.

2 stops12h 43m

C$ 676

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 26/2

5:00 a.m.-8:16 p.m.

1 stop16h 46m

Miami

Sat 7/3

7:25 a.m.-5:14 p.m.

1 stop8h 19m

C$ 695

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Wed 26/11

5:05 a.m.-11:39 a.m.

1 stop8h 04m

C$ 354

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 26/2

5:00 a.m.-3:21 p.m.

1 stop11h 51m

C$ 402

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 26/2

6:10 p.m.-9:59 p.m.

2 stops29h 19m

C$ 432

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 20/12

6:00 a.m.-9:04 p.m.

3 stops40h 34m

C$ 553

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 20/12

6:10 p.m.-10:40 a.m.

1 stop18h 00m

C$ 597

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 20/12

5:05 a.m.-10:10 p.m.

2 stops18h 35m

C$ 604

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 11 results
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Best time to book a flight from St. John's to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from St. John's 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 St. John's to Key Largo

How far ahead should I book a flight from St. John's to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from St. John's to Key Largo. Price data was last updated on 31 October 2025.

The best time to book flights from St. John's to Key Largo is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. John's to Key Largo?

Currently, February is the cheapest month in which you can book a flight from St. John's to Key Largo (average of C$ 341). Flying from St. John's to Key Largo in December is currently the most expensive (average of C$ 443). 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 YYT to KE9?

Find hourly flight availability from St. John's to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 November 2025.

When flying from St. John's to Key Largo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight in the evening.

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 6 November 2025.
See what other customers who have flown with Porter Airlines and Air Canada from St. John's to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
387 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,416 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Related info for your journey

Find useful and relevant information for your journey from St. John's 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 St. John's to Key Largo?

    St John's (YYT) is the airport you will fly out of if you book a flight from St. John's to Key Largo. You should not have trouble finding flights to Key Largo from St John's; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the St. John's airport to Key Largo. It is only a 6.7 km journey to St John's (YYT) from St. John's’s city centre.

  • How long is the flight from St. John's to Key Largo?

    A quick flight from St. John's to Key Largo can take about 8h 04m. Air Canada provides one of the quickest options available for as low as C$ 570. The distance between St. John's and Key Largo is about 3415 km.

  • Can I find deals for flights from St. John's to Key Largo that include hotel bookings?

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

  • How can I find direct flights from St. John's to Key Largo?

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

  • Can I find deals for business class flights from St. John's to Key Largo?

    Yes. Cheapflights offers flight deals from St. John's 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 St. John's to Key Largo?

    Currently, February is the cheapest month in which you can book a flight from St. John's to Key Largo (average of C$ 341). Flying from St. John's to Key Largo in December is currently the most expensive (average of C$ 443). 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 3 airlines flying from St. John's to Key Largo

Discover the top 3 airlines that operate flights from St. John's 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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 297AverageC$ 624FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 381AverageC$ 841FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 402AverageC$ 675FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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