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Cheap flights from St. John's to Key Largo from C$ 365

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — MIA
4 May — 11 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 4 April 2026.

Mon 25/52:05 p.m.
YYT
-
MIA
1 stop9h 42m
Air Canada
Thu 28/58:05 a.m.
MIA
-
YYT
2 stops10h 08m
Air Canada
Deal found 3/4C$ 654
Wed 18/111:05 p.m.
YYT
-
MIA
1 stop10h 54m
Air Canada
Thu 19/119:05 p.m.
MIA
-
YYT
1 stop18h 09m
Air Canada
Deal found 31/3C$ 685
Mon 4/52:05 p.m.
YYT
-
MIA
1 stop9h 42m
Air Canada
Sat 9/58:15 a.m.
MIA
-
YYT
2 stops9h 58m
Air Canada
Deal found 31/3C$ 691
Mon 20/77:30 a.m.
YYT
-
MIA
2 stops16h 11m
Air Canada
Wed 22/78:15 a.m.
MIA
-
YYT
2 stops10h 18m
Air Canada
Deal found 30/3C$ 711
Sun 10/55:00 a.m.
YYT
-
MIA
1 stop8h 43m
Air Canada
Thu 14/58:15 a.m.
MIA
-
YYT
2 stops13h 43m
Air Canada
Deal found 3/4C$ 717
Sat 14/112:05 p.m.
YYT
-
MIA
2 stops9h 54m
Air Canada
Tue 17/1112:55 p.m.
MIA
-
YYT
1 stop10h 31m
Air Canada
Deal found 31/3C$ 722

Find 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 4 April 2026.

Round-trip from

C$ 654

One-way from

C$ 365

Popular in

July

Cheapest in

June

Average price

C$ 1,051
Air Canada
  • Air Canada
  • 25/5-28/5
  • 3 total stops
  • 19h 50m total
  • St. John's to Key Largo
Search Deals
Air Canada
  • Air Canada
  • 18/5
  • 1 total stop
  • 9h 42m total
  • St. John's to Key Largo
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 4 April 2026.
Use the filters below to find and compare flights from St. John's to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 25/5

2:05 p.m.-10:17 p.m.

1 stop9h 42m

Miami

Thu 28/5

1:10 p.m.-1:48 a.m.

1 stop11h 08m

C$ 711

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sun 10/5

5:00 a.m.-12:13 p.m.

1 stop8h 43m

Miami

Thu 14/5

8:15 a.m.-11:28 p.m.

2 stops13h 43m

C$ 717

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 4/5

2:05 p.m.-10:17 p.m.

1 stop9h 42m

Miami

Sat 9/5

8:15 a.m.-12:41 a.m.

1 stop14h 56m

C$ 810

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 25/5

3:00 p.m.-12:47 a.m.

2 stops11h 17m

Miami

Thu 28/5

4:05 p.m.-10:55 p.m.

2 stops29h 20m

C$ 816

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 25/4

3:00 p.m.-5:08 p.m.

2 stops51h 38m

Miami

Sun 3/5

6:00 a.m.-10:55 p.m.

2 stops39h 25m

C$ 927

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Fri 1/5

1:20 p.m.-2:55 p.m.

3 stops27h 05m

Miami

Fri 8/5

10:57 a.m.-5:55 p.m.

3 stops29h 28m

C$ 951

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sun 10/5

6:10 p.m.-10:33 p.m.

3 stops29h 53m

Miami

Thu 14/5

4:20 p.m.-4:33 p.m.

2 stops22h 43m

C$ 979
Quickest round-trip

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Fri 1/5

1:35 p.m.-8:48 p.m.

1 stop8h 43m

Miami

Fri 8/5

8:15 a.m.-7:43 p.m.

2 stops9h 58m

C$ 1,011

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sun 17/5

5:00 a.m.-10:33 p.m.

2 stops19h 03m

Miami

Sun 24/5

5:24 p.m.-12:41 a.m.

2 stops29h 47m

C$ 1,092
Cheapest one-way

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Fri 15/5

3:00 p.m.-1:04 p.m.

2 stops47h 34m

C$ 403

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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

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

Currently, May is the cheapest month in which you can book a flight from St. John's to Key Largo (average of C$ 280). Flying from St. John's to Key Largo in March is currently the most expensive (average of C$ 482). 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.

How much does it cost to fly round-trip from St. John's to Key Largo?

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 4 April 2026.
See what other customers who have flown with 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.
Air Canada
7.1
Good
10,894 reviews
Check prices

Crew

7.8

Food

6.3

Overall

7.1

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Reviews

1 / 20
6.0
Good

Paula,Mar 2026

YVR - PSP

Everything was OK, but we waited on the tarmac for an hour and 20 minutes after landing because there was no available gate. This is a daily occurrence at the Palm Springs airport, and happens with Air Canada and WestJet constantly.
Air Canada
7.1
Good
10,894 reviews
Air Canada
7.1
Good
10,894 reviews
Check prices

Crew

7.8

Food

6.3

Overall

7.1

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Reviews

1 / 20
6.0
Good

Paula,Mar 2026

YVR - PSP

Everything was OK, but we waited on the tarmac for an hour and 20 minutes after landing because there was no available gate. This is a daily occurrence at the Palm Springs airport, and happens with Air Canada and WestJet constantly.

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 2 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 9h 42m. Air Canada provides one of the quickest options available for as low as C$ 711. The distance between St. John's and Key Largo is about 3415 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 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, May is the cheapest month in which you can book a flight from St. John's to Key Largo (average of C$ 280). Flying from St. John's to Key Largo in March is currently the most expensive (average of C$ 482). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. John's to Key Largo

Discover the top 2 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 4 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 406AverageC$ 581FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 423AverageC$ 790FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from St. John's to Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. John's 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 St. John's to Key Largo?

Millions of users choose and trust Cheapflights to book the best flight deals from St. John's 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 St. John's to Key Largo with no change fees?

Yes, we can. To see specific flights from St. John's to Key Largo with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. John's to Key Largo become cheaper?

Not ready to book yet? You can track prices for flights from St. John's to Key Largo on Cheapflights with our Price Alert feature and get notified when better prices are available.

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