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Cheap flights from Niagara Falls, ON to Key Largo from C$ 245

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Key Largo are usually found in September or July, booked 33 days in advance, depart on a Monday or Sunday and return on a Saturday

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 15 June 2026.

Thu 5/119:35 a.m.
YYZ
-
MIA
Nonstop3h 30m
Air Transat
Mon 9/112:05 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 14/6C$ 421
Wed 8/78:45 a.m.
YYZ
-
MIA
1 stop6h 12m
United Airlines
Wed 15/712:30 p.m.
MIA
-
YYZ
1 stop7h 07m
United Airlines
Deal found 10/6C$ 445
Fri 10/72:45 p.m.
YYZ
-
MIA
1 stop7h 42m
United Airlines
Mon 13/75:32 p.m.
MIA
-
YYZ
1 stop6h 27m
United Airlines
Deal found 10/6C$ 450
Thu 12/119:35 a.m.
YYZ
-
MIA
Nonstop3h 30m
Air Transat
Mon 16/112:05 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 14/6C$ 452
Tue 30/67:00 a.m.
YYZ
-
MIA
1 stop8h 00m
Multiple Airlines
Mon 6/79:45 p.m.
MIA
-
YYZ
Nonstop3h 14m
Multiple Airlines
Deal found 10/6C$ 453
Sat 29/85:55 p.m.
YYZ
-
MIA
Nonstop3h 28m
American Airlines
Sat 5/97:56 p.m.
MIA
-
YYZ
Nonstop3h 27m
American Airlines
Deal found 11/6C$ 454
Sat 25/78:45 a.m.
YYZ
-
MIA
1 stop13h 42m
Lufthansa
Sat 1/88:48 a.m.
MIA
-
YYZ
1 stop13h 56m
Lufthansa
Deal found 10/6C$ 461
Tue 8/96:00 a.m.
YYZ
-
MIA
Nonstop3h 33m
American Airlines
Tue 15/99:57 a.m.
MIA
-
YYZ
1 stop5h 02m
American Airlines
Deal found 13/6C$ 466
Thu 23/75:56 p.m.
YYZ
-
MIA
Nonstop3h 28m
American Airlines
Wed 29/76:21 a.m.
MIA
-
YYZ
1 stop8h 38m
American Airlines
Deal found 10/6C$ 467
Fri 10/71:00 p.m.
YYZ
-
MIA
1 stop9h 27m
Multiple Airlines
Mon 13/79:45 p.m.
MIA
-
YYZ
Nonstop3h 14m
Multiple Airlines
Deal found 10/6C$ 470
Mon 31/86:00 a.m.
YYZ
-
MIA
1 stop5h 20m
American Airlines
Sun 6/91:42 p.m.
MIA
-
YYZ
Nonstop3h 28m
American Airlines
Deal found 13/6C$ 474
Wed 22/76:00 a.m.
YYZ
-
MIA
1 stop9h 38m
American Airlines
Sat 25/78:00 p.m.
MIA
-
YYZ
Nonstop3h 22m
American Airlines
Deal found 11/6C$ 475

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 15 June 2026.

Round-trip from

C$ 421

One-way from

C$ 245

Popular in

December

Cheapest in

September

Average price

C$ 515
Air Transat
  • Air Transat
  • 5/11-9/11
  • Nonstop
  • 6h 50m total
  • Niagara Falls to Key Largo
Search Deals
GOL
  • GOL
  • 3/9
  • Nonstop
  • 3h 18m total
  • Niagara Falls to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 15 June 2026.
Use the filters below to find and compare flights from Niagara Falls to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 10/7

1:00 p.m.-10:27 p.m.

1 stop9h 27m

Miami

Mon 13/7

9:45 p.m.-12:59 a.m.

Nonstop3h 14m

C$ 470

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Tue 21/7

6:04 a.m.-2:22 p.m.

1 stop8h 18m

Miami

Wed 22/7

4:00 p.m.-11:58 p.m.

1 stop7h 58m

C$ 488

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 27/8

6:34 p.m.-1:07 a.m.

1 stop6h 33m

Miami

Mon 31/8

7:00 a.m.-5:19 p.m.

1 stop10h 19m

C$ 488

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 20/7

6:00 a.m.-2:55 p.m.

1 stop8h 55m

Miami

Mon 27/7

8:20 a.m.-5:19 p.m.

1 stop8h 59m

C$ 488

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sun 13/9

6:00 p.m.-12:54 a.m.

1 stop6h 54m

Miami

Fri 18/9

7:06 a.m.-5:35 p.m.

1 stop10h 29m

C$ 488

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Wed 26/8

6:00 a.m.-2:54 p.m.

1 stop8h 54m

Miami

Thu 10/9

8:05 a.m.-4:54 p.m.

1 stop8h 49m

C$ 489

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 5/9

6:34 p.m.-12:47 a.m.

1 stop6h 13m

Miami

Wed 9/9

10:20 a.m.-4:54 p.m.

1 stop6h 34m

C$ 489

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 23/7

7:45 a.m.-4:55 p.m.

1 stop9h 10m

Miami

Wed 29/7

8:20 a.m.-5:19 p.m.

1 stop8h 59m

C$ 489

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Wed 19/8

6:00 a.m.-2:54 p.m.

1 stop8h 54m

Miami

Sat 22/8

7:00 a.m.-5:19 p.m.

1 stop10h 19m

C$ 489

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sun 5/7

6:10 a.m.-8:33 p.m.

1 stop14h 23m

Miami

Tue 7/7

9:45 p.m.-12:59 a.m.

Nonstop3h 14m

C$ 533

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/6

Showing 1-10 of 24 resultsSorted by cheapest first
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

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 15 June 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 22% versus a flight in the afternoon.

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 15 June 2026.

The most flights from NI4 to KE9 are scheduled on a Saturday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from Niagara Falls to Key Largo?

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 13 June 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.

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 15 June 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andWestJet 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
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Transat
7.8
Good
555 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,361 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
American Airlines
7.1
Good
11,662 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,193 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Boarding

8.2

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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?

    Delta can get you from Niagara Falls to Key Largo in just under 8h 18m. Your travel time can differ by up to . Airlines will cover a distance of 1988 km.

  • 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$ 132 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 190 and Air Transat from C$ 197 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 Porter Airlines (81%), Air Transat (81%) and Air Canada Rouge (77%).

  • 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$ 522, our data indicates the cheapest price to be C$ 267. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 421.

  • 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.

See more FAQs

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Alternative routes for Niagara Falls to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Niagara Falls to Key Largo

Discover the top 9 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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 120AverageC$ 495FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Flair AirlinesCheapestC$ 153AverageC$ 313FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Porter AirlinesCheapestC$ 188AverageC$ 407FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 194AverageC$ 407FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 207AverageC$ 681FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 213AverageC$ 487FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 251AverageC$ 482FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 258AverageC$ 472FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 634AverageC$ 682FlexibilityNo 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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