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C$ 79+ Cheap flights from Key Largo

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
MIA — YYZ
20 Aug — 27 Aug1
1 adult

What to know about flights from Key Largo

Discover essential information about flights departing from Key Largo, including flight schedules, destinations, airlines operating at the Key Largo airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 15 August 2025.

Cheapest one-way flight

C$ 60

Cheapest round-trip flight

C$ 135

Cheapest airline

Frontier

Most popular destination

Montreal Pierre Elliott Trudeau Intl (YUL)
The cheapest one-way flight from Key Largo is currently to New York LaGuardia.
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The cheapest round-trip flight from Key Largo is currently to Toronto Pearson Intl.
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On average, Frontier currently has the cheapest one-way flight from Key Largo (avg. price of C$ 183).
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Montreal Pierre Elliott Trudeau Intl (YUL) is currently the most popular flight destination from Key Largo (average round-trip price of C$ 239).
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Find flights from Key Largo

Cheapest flights from Key Largo
Explore the most affordable flight options available from Key Largo. Find the lowest fares based on data from user searches, with prices last updated on 15 August 2025.

Wed 17/99:00 a.m.MIA - SJU
2 stops10h 45mSouthwest
Thu 18/95:00 a.m.SJU - MIA
1 stop6h 50mSouthwest
Deal found 12/8C$ 222
Wed 17/99:00 a.m.MIA - SJU
2 stops10h 45mSouthwest
Sat 20/93:25 p.m.SJU - MIA
1 stop5h 10mSouthwest
Deal found 12/8C$ 256
Mon 8/97:10 a.m.MIA - SJU
1 stop11h 35mSouthwest
Thu 11/911:10 a.m.SJU - MIA
1 stop11h 00mSouthwest
Deal found 13/8C$ 261
Sat 25/109:40 p.m.MIA - SJO
Nonstop3h 00mAvianca
Wed 5/119:00 a.m.SJO - MIA
Nonstop3h 05mAvianca
Deal found 12/8C$ 277
Mon 10/113:50 a.m.MIA - SJO
1 stop4h 35mAvianca
Mon 17/119:00 a.m.SJO - MIA
Nonstop3h 05mAvianca
Deal found 13/8C$ 278
Sun 14/99:40 p.m.MIA - SJO
Nonstop3h 00mAvianca
Sat 27/95:05 a.m.SJO - MIA
2 stops9h 00mAvianca
Deal found 12/8C$ 280
Fri 3/105:35 a.m.MIA - SJO
1 stop4h 15mAvianca
Wed 5/119:00 a.m.SJO - MIA
Nonstop3h 05mAvianca
Deal found 14/8C$ 292
Fri 3/102:45 p.m.MIA - SJU
1 stop7h 15mDelta
Tue 7/105:43 p.m.SJU - MIA
1 stop6h 46mDelta
Deal found 14/8C$ 296
Thu 4/126:00 a.m.MIA - SJU
1 stop10h 15mDelta
Sat 6/126:20 p.m.SJU - MIA
1 stop7h 32mDelta
Deal found 13/8C$ 298
Mon 8/912:41 p.m.MIA - YVR
1 stop11h 24mMultiple Airlines
Fri 12/96:00 a.m.YVR - MIA
2 stops27h 21mMultiple Airlines
Deal found 14/8C$ 299
Sat 6/96:20 a.m.MIA - YVR
2 stops19h 16mMultiple Airlines
Thu 11/99:30 a.m.YVR - MIA
1 stop11h 42mMultiple Airlines
Deal found 13/8C$ 306
Wed 19/112:40 p.m.MIA - SJO
1 stop5h 15mAvianca
Sun 23/119:00 a.m.SJO - MIA
Nonstop3h 05mAvianca
Deal found 12/8C$ 307

Find flights from Key Largo within your budget

 
Find flights departing from Key Largo that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 15 August 2025. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Pearson Intl

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 17/9

9:00 a.m.-7:45 p.m.

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Thu 18/9

5:00 a.m.-11:50 a.m.

1 stop6h 50m

C$ 222

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 7/10

1:15 p.m.-11:50 p.m.

2 stops10h 35m

San Juan Luis Munoz Marin Intl

Sat 11/10

3:15 p.m.-9:50 p.m.

1 stop6h 35m

C$ 261

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 8/9

7:10 a.m.-6:45 p.m.

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Thu 11/9

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

1 stop11h 00m

C$ 261

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 4/10

12:00 p.m.-11:25 p.m.

2 stops11h 25m

San Juan Luis Munoz Marin Intl

Sat 11/10

3:15 p.m.-9:50 p.m.

1 stop6h 35m

C$ 261

MiamiSan José

MIA - SJO

MIASJO

Miami

Sat 25/10

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

Nonstop3h 00m

San José Juan Santamaria Intl

Wed 5/11

5:15 p.m.-11:00 p.m.

1 stop4h 45m

C$ 277

MiamiSan José

MIA - SJO

MIASJO

Miami

Mon 10/11

3:50 a.m.-7:25 a.m.

1 stop4h 35m

San José Juan Santamaria Intl

Mon 17/11

9:00 a.m.-1:05 p.m.

Nonstop3h 05m

C$ 278

MiamiSan José

MIA - SJO

MIASJO

Miami

Tue 11/11

10:45 p.m.-12:50 a.m.

Nonstop3h 05m

San José Juan Santamaria Intl

Tue 18/11

9:00 a.m.-1:05 p.m.

Nonstop3h 05m

C$ 278

MiamiSan José

MIA - SJO

MIASJO

Miami

Sat 15/11

10:45 p.m.-12:50 a.m.

Nonstop3h 05m

San José Juan Santamaria Intl

Sat 22/11

5:00 a.m.-3:20 p.m.

2 stops9h 20m

C$ 280

MiamiSan José

MIA - SJO

MIASJO

Miami

Sun 14/9

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

Nonstop3h 00m

San José Juan Santamaria Intl

Sat 27/9

5:05 a.m.-4:05 p.m.

2 stops9h 00m

C$ 280

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 6/10

7:10 a.m.-1:21 p.m.

1 stop6h 11m

San Juan Luis Munoz Marin Intl

Sat 11/10

2:31 p.m.-12:29 a.m.

1 stop9h 58m

C$ 296

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/8

Showing 1-10 of 60 results
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Best time to book a flight from Key Largo

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

Travel insights for flights from Key Largo

Get recent, data-driven insights about flights from Key Largo including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Pearson Intl. Price data was last updated on 8 August 2025.

The price you pay for your flight from Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Key Largo?

Currently, October is the cheapest month in which you can book a flight from Key Largo (average of C$ 73). Flying from Key Largo in August will prove the most costly (average of C$ 139). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Pearson Intl. Price data was last updated on 10 August 2025.

Those who are seeking the cheapest fare on flights departing from Key Largo would be wise to consider leaving during Saturday afternoons when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Monday at noon when fares are usually the most expensive.

Which airlines fly from Key Largo?

For flights departing from Key Largo check dates and pricing for the following: Air Canada, American Airlines, Porter Airlines, Flair Airlines. These airlines depart to the following popular destinations: Toronto.

American Airlines
American Airlines
From C$ 107
Air Canada
Air Canada
From C$ 147
Avianca
Avianca
From C$ 165
Sunrise Airways
Sunrise Airways
From C$ 522

Airline reviews for flights from Key Largo

Get insights into the airlines that provide service from 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 airline for your flight from Key Largo. In the last 7 days, Cheapflights users made a total of 629,999 searches.
Get a feel of what it's like to fly with Porter Airlines,American Airlines, andAir Canada from Key Largo by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,949 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Flair Airlines
6.0
Okay
250 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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Related info for your journey

Access useful and relevant information related to your journey from Key Largo. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 15 August 2025.

  • Which is the cheapest airport to catch a flight from Key Largo?

    The cheapest routes to Jeju City can be found at Busan Gimhae airport from C$ 37. While Madrid Barajas airport is usually cheaper if your destination is London with prices starting at C$ 46. Reference our flight search to find the best deals in real time.

  • What is the cheapest month to fly from Key Largo?

    At the present moment the cheapest month to fly from Key Largo is currently October; with August being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Key Largo?

    Check out the cheapest flights from Key Largo to embark to:
    Travel from Busan to Jeju City from C$ 37 round trip
    Travel from Madrid to London from C$ 46 round trip
    Travel from Calgary to Abbotsford from C$ 55 round trip
    Travel from Paris to Porto from C$ 61 round trip
    Travel from Guadalajara to Puerto Vallarta from C$ 68 round trip

  • How does Cheapflights help users find flights from Key Largo?

    900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Key Largo today with Cheapflights!

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Key Largo for you. Better yet — we are completely free to use.

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

    Certainly. Search results for flights from Key Largo 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 Key Largo become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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How does Cheapflights help users find flights from Key Largo?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Key Largo today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Key Largo for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights from Key Largo 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 Key Largo become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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