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Cheap flights from St. John's to Key Largo from C$ 408

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — MIA
21 Aug — 28 Aug1
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 22 July 2026.

Thu 26/115:15 a.m.
YYT
-
MIA
1 stop8h 50m
Air Canada
Tue 8/128:00 a.m.
MIA
-
YYT
2 stops9h 37m
Air Canada
Deal found 18/7C$ 800
Fri 27/115:00 a.m.
YYT
-
MIA
1 stop16h 49m
Air Canada
Tue 8/128:00 a.m.
MIA
-
YYT
2 stops9h 37m
Air Canada
Deal found 20/7C$ 834
Tue 8/125:15 a.m.
YYT
-
MIA
1 stop8h 36m
Air Canada
Thu 10/121:15 p.m.
MIA
-
YYT
1 stop10h 05m
Air Canada
Deal found 20/7C$ 876
Sat 29/82:05 p.m.
YYT
-
MIA
1 stop9h 36m
Air Canada
Sat 5/98:15 a.m.
MIA
-
YYT
2 stops10h 18m
Air Canada
Deal found 17/7C$ 889

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 22 July 2026.

Round-trip from

C$ 800

One-way from

C$ 408

Popular in

October

Cheapest in

June
Air Canada
  • Air Canada
  • 26/11-8/12
  • 3 total stops
  • 18h 27m total
  • St. John's to Key Largo
Search Deals
Air Canada
  • Air Canada
  • 19/8
  • 1 total stop
  • 9h 41m total
  • St. John's to Key Largo
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 52 potential savings vs. average RT price).
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 22 July 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

Thu 26/11

5:55 p.m.-11:09 a.m.

1 stop18h 44m

Miami

Tue 8/12

8:00 a.m.-7:07 p.m.

2 stops9h 37m

C$ 817
Quickest round-trip

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Tue 8/12

5:15 a.m.-12:21 p.m.

1 stop8h 36m

Miami

Thu 10/12

1:15 p.m.-12:50 a.m.

1 stop10h 05m

C$ 876

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 29/8

2:05 p.m.-10:11 p.m.

1 stop9h 36m

Miami

Sat 5/9

8:15 a.m.-8:03 p.m.

2 stops10h 18m

C$ 889

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 10/9

5:00 a.m.-12:14 p.m.

1 stop8h 44m

Miami

Sun 20/9

7:10 a.m.-12:33 a.m.

1 stop15h 53m

C$ 994
Cheapest one-way

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Wed 19/8

10:00 a.m.-7:24 a.m.

2 stops22h 54m

C$ 408

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 31/8

11:05 a.m.-8:48 p.m.

2 stops11h 13m

C$ 414
Quickest one-way

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Thu 14/1

6:00 a.m.-1:02 p.m.

1 stop8h 32m

C$ 472

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Mon 31/8

7:00 p.m.-1:32 p.m.

3 stops44h 02m

C$ 479

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Wed 19/8

5:35 a.m.-6:52 p.m.

3 stops14h 47m

C$ 538

St. John'sMiami

YYT - MIA

YYTMIA

St John's

Sat 8/8

8:00 p.m.-10:40 p.m.

2 stops28h 10m

C$ 817

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/7

Showing 1-10 of 11 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

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 22 July 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
11,371 reviews
Check prices

Overall

7.1

Comfort

7.1

Food

6.3

Crew

7.8

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YDF - YYZ

Having excellent support for my mobility issues is so much appreciated. Thank you and your awesome crew.
Air Canada
7.1
Good
11,371 reviews
Air Canada
7.1
Good
11,371 reviews
Check prices

Overall

7.1

Comfort

7.1

Food

6.3

Crew

7.8

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YDF - YYZ

Having excellent support for my mobility issues is so much appreciated. Thank you and your awesome crew.

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 18h 44m. Air Canada provides one of the quickest options available for as low as C$ 817. 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.

See more FAQs

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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 22 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 410AverageC$ 633FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 415AverageC$ 971FlexibilityNo 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?

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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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