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Cheap flights from Niagara Falls, ON to Key Largo from C$ 194

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
15 Mar — 22 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Key Largo are usually found in June or April, booked 47 days in advance, depart on a Wednesday or Monday and return on a Friday

Cheap flight deals from Niagara Falls to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from Niagara Falls to Key Largo
Explore the most affordable flight options available from Niagara Falls to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 February 2026.

Tue 24/29:40 a.m.
YYZ
-
MIA
Nonstop3h 29m
Air Transat
Thu 26/22:10 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 10/2C$ 329
Tue 24/29:40 a.m.
YYZ
-
MIA
Nonstop3h 29m
Air Transat
Tue 3/32:10 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 11/2C$ 332
Mon 23/39:40 a.m.
YYZ
-
MIA
Nonstop3h 29m
Air Transat
Fri 27/32:10 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 11/2C$ 337
Tue 24/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Thu 26/29:05 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 9/2C$ 338
Mon 23/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Thu 26/29:05 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 12/2C$ 341
Mon 23/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Tue 3/39:15 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 11/2C$ 342
Tue 17/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Tue 24/29:05 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 12/2C$ 344
Tue 17/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Thu 19/29:05 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 11/2C$ 345
Sun 1/38:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Thu 12/39:15 p.m.
MIA
-
YYZ
Nonstop3h 21m
Air Canada
Deal found 12/2C$ 346
Tue 17/29:40 a.m.
YYZ
-
MIA
Nonstop3h 29m
Air Transat
Tue 24/22:10 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 10/2C$ 349
Mon 16/28:50 p.m.
YYZ
-
MIA
Nonstop3h 26m
Air Canada
Fri 3/49:05 p.m.
MIA
-
YYZ
Nonstop3h 19m
Air Canada
Deal found 10/2C$ 351

Find flight deals from Niagara Falls to Key Largo

Keep the following information in mind while searching for Niagara Falls to Key Largo flight deals. Data was last updated 13 February 2026.

Round-trip from

C$ 329

One-way from

C$ 194

Popular in

December

Cheapest in

June

Average price

C$ 477
Air Transat
  • Air Transat
  • 24/2-26/2
  • Nonstop
  • 6h 49m total
  • Niagara Falls to Key Largo
Search Deals
Air Transat
  • Air Transat
  • 13/4
  • Nonstop
  • 3h 29m total
  • Niagara Falls to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls 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 13 February 2026.
Use the filters below to find and compare flights from Niagara Falls to Key Largo that are best for you.

Fly from

Niagara Falls

Fly to

Key Largo

Route

Depart

Return

Price

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 21/3

9:40 a.m.-1:09 p.m.

Nonstop3h 29m

Miami

Fri 27/3

2:10 p.m.-5:30 p.m.

Nonstop3h 20m

C$ 446

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 21/3

9:40 a.m.-1:09 p.m.

Nonstop3h 29m

Miami

Thu 26/3

2:10 p.m.-5:30 p.m.

Nonstop3h 20m

C$ 447

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 16/3

7:15 a.m.-1:55 p.m.

1 stop6h 40m

Miami

Fri 27/3

2:10 p.m.-5:30 p.m.

Nonstop3h 20m

C$ 452

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Tue 24/2

9:40 a.m.-1:09 p.m.

Nonstop3h 29m

Miami

Thu 26/2

2:10 p.m.-5:30 p.m.

Nonstop3h 20m

C$ 463

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 20/3

7:15 a.m.-1:55 p.m.

1 stop6h 40m

Miami

Fri 27/3

2:10 p.m.-5:30 p.m.

Nonstop3h 20m

C$ 466

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 28/2

6:00 a.m.-4:31 p.m.

1 stop10h 31m

Miami

Thu 5/3

9:24 a.m.-4:14 p.m.

1 stop6h 50m

C$ 481

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 18/4

11:30 a.m.-6:35 p.m.

1 stop7h 05m

Miami

Mon 27/4

8:05 a.m.-5:15 p.m.

1 stop9h 10m

C$ 481

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 28/2

2:25 p.m.-9:10 p.m.

1 stop6h 45m

Miami

Wed 4/3

1:50 p.m.-8:35 p.m.

1 stop6h 45m

C$ 482

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 23/2

5:10 p.m.-11:20 p.m.

1 stop6h 10m

Miami

Thu 26/2

6:00 a.m.-11:07 a.m.

1 stop5h 07m

C$ 482

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 19/3

6:10 p.m.-12:52 a.m.

1 stop6h 42m

Miami

Thu 26/3

11:30 a.m.-5:49 p.m.

1 stop6h 19m

C$ 482

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/2

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Niagara Falls to Key Largo

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

How far ahead should I book a flight from Niagara Falls to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Key Largo. Price data was last updated on 6 February 2026.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Niagara Falls to Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from Niagara Falls to Key Largo (average of C$ 110). Flying from Niagara Falls to Key Largo in December is currently the most expensive (average of C$ 201). 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 NI4 to KE9?

Find hourly flight availability from Niagara Falls 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 13 February 2026.

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

What is the cheapest day to fly from Niagara Falls to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Niagara Falls to Key Largo. Price data was last updated on 7 February 2026.

Travelers seeking maximum savings on their Niagara Falls to Key Largo flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Niagara Falls to Key Largo

Explore weekly flight availability from Niagara Falls to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 February 2026.

The most flights from NI4 to KE9 are scheduled on a Thursday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Niagara Falls 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 13 February 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andAmerican Airlines from Niagara Falls to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Porter Airlines
7.9
Good
415 reviews
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Air Transat
7.7
Good
508 reviews
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
American Airlines
7.2
Good
11,282 reviews
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
WestJet
7.2
Good
3,258 reviews
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Air Canada
7.1
Good
10,717 reviews
Porter Airlines
7.9
Good
415 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Niagara Falls to Key Largo?

    Porter Airlines can get you from Niagara Falls to Key Largo in just under 3h 29m. Your travel time will be generally consistent. Airlines will cover a distance of 1988 km. All flights are typically direct.

  • What are the cheapest airlines to fly from Niagara Falls to Key Largo one-way?

    One-way options have recently been found by users for as low as C$ 112 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 158 and Air Transat from C$ 192 one-way.

  • What are the most reliable airlines from Niagara Falls to Key Largo?

    The top 3 most reliable airlines when flying from Niagara Falls to Key Largo are GOL (74%), Envoy Air (73%) and American Airlines (70%).

  • What are the cheapest flights from Niagara Falls to Key Largo?

    Looking for the cheapest flight from Niagara Falls to Key Largo? While on average our users pay C$ 1,010, our data indicates the cheapest price to be C$ 192. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 338.

  • Can I find deals for flights from Niagara Falls to Key Largo that include hotel bookings?

    Yes. In addition to deals on Niagara Falls to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Niagara Falls to Key Largo?

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

  • Can I find deals for business class flights from Niagara Falls to Key Largo?

    Yes. Cheapflights offers flight deals from Niagara Falls 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 Niagara Falls to Key Largo?

    Currently, April is the cheapest month in which you can book a flight from Niagara Falls to Key Largo (average of C$ 110). Flying from Niagara Falls to Key Largo in December is currently the most expensive (average of C$ 201). 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 10 airlines flying from Niagara Falls to Key Largo

Discover the top 10 airlines that operate flights from Niagara Falls 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 13 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 93AverageC$ 234FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Air CanadaCheapestC$ 155AverageC$ 424FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 176AverageC$ 355FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 176AverageC$ 389FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 181AverageC$ 410FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 189AverageC$ 643FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 192AverageC$ 434FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 248AverageC$ 434FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 510AverageC$ 717FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
APG AirlinesCheapestC$ 616AverageC$ 663FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Niagara Falls to Key Largo?

Deals for Niagara Falls to Key Largo flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Niagara Falls 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 Niagara Falls to Key Largo with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Niagara Falls to Key Largo flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Niagara Falls to Key Largo become cheaper?

Yes! Start tracking prices for Niagara Falls to Key Largo flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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