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Cheap flights from Niagara Falls, ON to Key Largo from C$ 224

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 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
25 Dec — 1 Jan1
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 Tuesday

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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 25 November 2025.

Wed 31/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Wed 7/12:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 25/11C$ 347
Sat 13/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Fri 19/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 24/11C$ 351
Mon 8/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Wed 24/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 24/11C$ 356
Mon 8/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Mon 15/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 25/11C$ 358
Mon 15/124:50 p.m.YYZ - MIA
Nonstop3h 26mAir Canada
Thu 18/129:05 p.m.MIA - YYZ
Nonstop3h 21mAir Canada
Deal found 25/11C$ 360
Sat 13/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Mon 15/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 25/11C$ 361
Sat 13/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Thu 18/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 25/11C$ 364
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Thu 25/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 23/11C$ 365
Tue 9/126:20 a.m.YYZ - MIA
1 stop6h 14mAir Canada
Fri 12/129:05 p.m.MIA - YYZ
Nonstop3h 21mAir Canada
Deal found 25/11C$ 367
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Tue 16/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 24/11C$ 370
Sun 7/129:40 a.m.YYZ - MIA
Nonstop3h 29mMultiple Airlines
Sat 13/126:05 a.m.MIA - YYZ
2 stops16h 30mMultiple Airlines
Deal found 23/11C$ 371
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Fri 19/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 24/11C$ 375

Cheap 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 25 November 2025.

Round-trip from

C$ 332

One-way from

C$ 224

Popular in

December

Cheapest in

June

Average price

C$ 538
Porter Airlines
  • Porter Airlines
  • 19/1-29/1
  • Nonstop
  • 6h 49m total
  • Niagara Falls to Key Largo
Search Deals
Porter Airlines
  • Porter Airlines
  • 23/2
  • Nonstop
  • 3h 29m total
  • Niagara Falls to Key Largo
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 46 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 November 2025
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 25 November 2025.
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

Thu 29/1

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

Nonstop3h 29m

Miami

Mon 9/2

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

Nonstop3h 20m

C$ 395

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 6/2

2:57 p.m.-10:20 p.m.

1 stop7h 23m

Miami

Sat 14/2

2:43 p.m.-9:24 p.m.

1 stop6h 41m

C$ 406

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Wed 7/1

7:50 a.m.-2:35 p.m.

1 stop6h 45m

Miami

Sat 17/1

7:00 a.m.-1:24 p.m.

1 stop6h 24m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 17/1

10:45 a.m.-4:34 p.m.

1 stop5h 49m

Miami

Mon 26/1

6:20 a.m.-2:20 p.m.

1 stop8h 00m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 30/1

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

1 stop6h 40m

Miami

Tue 10/2

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

Nonstop3h 20m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 26/1

11:00 a.m.-10:20 p.m.

2 stops11h 20m

Miami

Mon 2/2

6:20 a.m.-10:37 p.m.

1 stop16h 17m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 30/1

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

1 stop6h 40m

Miami

Mon 9/2

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

Nonstop3h 20m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 15/1

6:10 a.m.-3:40 p.m.

1 stop9h 30m

Miami

Tue 27/1

1:45 p.m.-6:57 p.m.

1 stop5h 12m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 17/1

10:45 a.m.-4:34 p.m.

1 stop5h 49m

Miami

Sat 31/1

6:25 p.m.-11:46 p.m.

1 stop5h 21m

C$ 411

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 16/1

2:57 p.m.-11:59 p.m.

1 stop9h 02m

Miami

Thu 29/1

6:00 a.m.-11:48 a.m.

1 stop5h 48m

C$ 411

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/11

Showing 1-10 of 24 results
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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 21 November 2025.

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, February is the cheapest month in which you can book a flight from Niagara Falls to Key Largo (average of C$ 90). Flying from Niagara Falls to Key Largo in August is currently the most expensive (average of C$ 176). 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 25 November 2025.

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 27% 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 16 December 2024.

Travelers seeking maximum savings on their Niagara Falls to Key Largo flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday 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 25 November 2025.

The most flights from NI4 to KE9 are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 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 25 November 2025.
Read reviews from past customers who have flown Porter Airlines,United Airlines, 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
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
394 reviews
Porter Airlines
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,043 reviews
Porter Airlines
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
American Airlines
7.2
Good
11,039 reviews
Porter Airlines
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,173 reviews
Porter Airlines
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,471 reviews
Porter Airlines
8.0
Very good
394 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 and United Airlines can get you from Niagara Falls to Key Largo in just under 3h 29m. Your travel time can differ by up to 3h 54m. Airlines will cover a distance of 1988 km. This flight may include one or multiple stops.

  • 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 American Airlines (91%), Qatar Airways (91%) and GOL (91%).

  • 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$ 1,296, our data indicates the cheapest price to be C$ 196. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 332.

  • 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, February is the cheapest month in which you can book a flight from Niagara Falls to Key Largo (average of C$ 90). Flying from Niagara Falls to Key Largo in August is currently the most expensive (average of C$ 176). 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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 104AverageC$ 341FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Flair AirlinesCheapestC$ 116AverageC$ 268FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
American AirlinesCheapestC$ 197AverageC$ 545FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 202AverageC$ 408FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 206AverageC$ 440FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 211AverageC$ 657FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 253AverageC$ 446FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 276AverageC$ 474FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 530AverageC$ 744FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
APG AirlinesCheapestC$ 640AverageC$ 689FlexibilityNo 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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