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C$ 88+ Cheap flights from Key Largo

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 29/3. 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 — YUL
23 Feb — 2 Mar1
1 adult
1 adult, Economy, 0 bags

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 24 January 2026.

Cheapest one-way flight

C$ 54

Cheapest round-trip flight

C$ 130

Cheapest airline

Air Canada

Most popular destination

Toronto Pearson Intl (YYZ)
The cheapest one-way flight from Key Largo is currently to New York John F Kennedy Intl.
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The cheapest round-trip flight from Key Largo is currently to Toronto Pearson Intl.
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On average, Air Canada currently has the cheapest one-way flight from Key Largo (avg. price of C$ 478).
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Toronto Pearson Intl (YYZ) is currently the most popular flight destination from Key Largo (average round-trip price of C$ 325).
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Find flights from Key Largo

Enter your travel dates to find the best prices.

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 24 January 2026.

Tue 3/33:26 p.m.
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Thu 5/311:52 a.m.
SJU
-
MIA
Nonstop2h 58m
Spirit Airlines
Deal found 24/1C$ 164
Wed 11/33:26 p.m.
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Wed 25/312:05 p.m.
SJU
-
MIA
1 stop8h 02m
Spirit Airlines
Deal found 23/1C$ 176
Mon 23/29:02 a.m.
MIA
-
SJU
Nonstop2h 37m
Frontier
Thu 26/26:00 a.m.
SJU
-
MIA
Nonstop2h 57m
Frontier
Deal found 23/1C$ 177
Wed 15/43:26 p.m.
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Fri 24/42:15 a.m.
SJU
-
MIA
Nonstop2h 53m
Spirit Airlines
Deal found 23/1C$ 180
Wed 1/49:25 p.m.
MIA
-
SJU
Nonstop2h 33m
Spirit Airlines
Wed 8/41:22 a.m.
SJU
-
MIA
1 stop11h 25m
Spirit Airlines
Deal found 23/1C$ 209
Mon 9/23:26 p.m.
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Sat 14/22:59 a.m.
SJU
-
MIA
1 stop10h 44m
Spirit Airlines
Deal found 22/1C$ 220
Tue 24/26:55 a.m.
MIA
-
SJU
1 stop11h 10m
Southwest
Thu 26/25:25 p.m.
SJU
-
MIA
1 stop6h 35m
Southwest
Deal found 22/1C$ 242
Sat 7/23:26 p.m.
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Sat 21/22:59 a.m.
SJU
-
MIA
1 stop10h 44m
Spirit Airlines
Deal found 23/1C$ 270
Tue 17/39:25 p.m.
MIA
-
SJU
Nonstop2h 33m
Spirit Airlines
Fri 20/31:22 a.m.
SJU
-
MIA
1 stop11h 25m
Spirit Airlines
Deal found 22/1C$ 278
Mon 9/26:05 p.m.
MIA
-
SJU
1 stop5h 35m
Southwest
Fri 13/25:25 p.m.
SJU
-
MIA
1 stop6h 35m
Southwest
Deal found 23/1C$ 279
Wed 18/33:16 p.m.
MIA
-
YVR
1 stop22h 56m
Multiple Airlines
Mon 23/37:45 p.m.
YVR
-
MIA
2 stops14h 32m
Multiple Airlines
Deal found 24/1C$ 358
Fri 6/37:12 a.m.
MIA
-
YYC
1 stop12h 03m
Multiple Airlines
Mon 9/39:00 a.m.
YYC
-
MIA
1 stop12h 39m
Multiple Airlines
Deal found 22/1C$ 370

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 24 January 2026. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 11/3

3:26 p.m.-5:58 p.m.

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Wed 25/3

12:05 p.m.-8:07 p.m.

1 stop8h 02m

C$ 176

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 1/4

9:25 p.m.-11:58 p.m.

Nonstop2h 33m

San Juan Luis Munoz Marin Intl

Wed 8/4

1:22 a.m.-12:47 p.m.

1 stop11h 25m

C$ 209

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 9/2

3:26 p.m.-6:58 p.m.

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Sat 14/2

2:59 a.m.-12:43 p.m.

1 stop10h 44m

C$ 220

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 17/3

2:04 p.m.-12:17 a.m.

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Fri 20/3

1:22 a.m.-12:47 p.m.

1 stop11h 25m

C$ 322

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 5/5

12:35 p.m.-11:40 p.m.

2 stops11h 05m

San Juan Luis Munoz Marin Intl

Tue 12/5

5:35 a.m.-11:30 a.m.

1 stop5h 55m

C$ 373

MiamiToronto

MIA - YTZ

MIAYTZ

Miami

Wed 25/3

3:25 p.m.-1:42 p.m.

1 stop22h 17m

Toronto Island

Sun 12/4

2:30 p.m.-10:40 a.m.

1 stop20h 10m

C$ 398

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 25/4

6:15 a.m.-12:55 p.m.

1 stop6h 40m

San Juan Luis Munoz Marin Intl

Sat 25/4

3:40 p.m.-10:05 p.m.

1 stop6h 25m

C$ 400

MiamiOttawa

MIA - YOW

MIAYOW

Miami

Fri 27/2

8:00 a.m.-4:23 p.m.

1 stop8h 23m

Ottawa

Fri 6/3

10:10 a.m.-1:55 p.m.

Nonstop3h 45m

C$ 403

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 5/5

12:10 p.m.-11:40 p.m.

2 stops11h 30m

San Juan Luis Munoz Marin Intl

Fri 8/5

10:00 a.m.-11:00 p.m.

2 stops13h 00m

C$ 407

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 7/2

5:50 a.m.-5:22 p.m.

1 stop10h 32m

San Juan Luis Munoz Marin Intl

Tue 10/2

3:55 p.m.-12:51 a.m.

1 stop9h 56m

C$ 415

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/1

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 Pierre Elliott Trudeau Intl. Price data was last updated on 16 January 2026.

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 84 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, April is the cheapest month in which you can book a flight from Key Largo (average of C$ 55). Flying from Key Largo in July will prove the most costly (average of C$ 162). 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 Pierre Elliott Trudeau Intl. Price data was last updated on 17 January 2026.

Those who are seeking the cheapest fare on flights departing from Key Largo would be wise to consider leaving during Sunday afternoons when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Tuesday mornings 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. These airlines depart to the following popular destinations: Montreal.

American Airlines
American Airlines
From C$ 155
Air Canada
Air Canada
From C$ 167
Sunrise Airways
Sunrise Airways
From C$ 718
Avianca
Avianca
From C$ 202

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 American Airlines and Air 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.
American Airlines
7.2
Good
11,193 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,193 reviews
American Airlines
7.2
Good
11,193 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
Air Canada
7.1
Good
10,652 reviews
American Airlines
7.2
Good
11,193 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

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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 24 January 2026.

  • 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$ 45. 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 April; with July 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$ 45 round trip
    Travel from Paris to Porto from C$ 61 round trip
    Travel from Vancouver to Kelowna from C$ 62 round trip
    Travel from Guadalajara to Puerto Vallarta from C$ 67 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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