Cheap flights from Niagara Falls, ON to Key Largo from C$ 263

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
10 Jun — 17 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Key Largo are usually found in June or September, booked 33 days in advance, depart on a Monday or Sunday and return on a Monday

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 11 May 2026.

Sat 9/58:00 a.m.
YYZ
-
MIA
1 stop9h 07m
Air Canada
Wed 13/59:45 p.m.
MIA
-
YYZ
Nonstop3h 14m
Air Canada
Deal found 8/5C$ 391
Fri 16/109:40 a.m.
YYZ
-
MIA
Nonstop3h 29m
Air Transat
Fri 23/102:10 p.m.
MIA
-
YYZ
Nonstop3h 20m
Air Transat
Deal found 10/5C$ 408
Tue 22/97:20 a.m.
YYZ
-
MIA
Nonstop3h 35m
American Airlines
Wed 30/97:45 p.m.
MIA
-
YYZ
Nonstop3h 15m
American Airlines
Deal found 10/5C$ 453
Sun 31/58:55 a.m.
YYZ
-
MIA
Nonstop3h 18m
Air Canada
Wed 3/69:45 p.m.
MIA
-
YYZ
Nonstop3h 14m
Air Canada
Deal found 11/5C$ 464
Sun 10/55:59 p.m.
YYZ
-
MIA
Nonstop3h 25m
American Airlines
Wed 13/56:45 a.m.
MIA
-
YYZ
1 stop7h 58m
American Airlines
Deal found 10/5C$ 466
Sun 10/54:00 p.m.
YYZ
-
MIA
1 stop6h 17m
Air Canada
Sat 13/69:45 p.m.
MIA
-
YYZ
Nonstop3h 14m
Air Canada
Deal found 9/5C$ 469
Sat 17/104:15 p.m.
YYZ
-
MIA
1 stop6h 32m
American Airlines
Thu 22/107:45 p.m.
MIA
-
YYZ
Nonstop3h 15m
American Airlines
Deal found 11/5C$ 475
Tue 26/56:00 a.m.
YYZ
-
MIA
Nonstop3h 35m
American Airlines
Sat 30/56:20 a.m.
MIA
-
YYZ
1 stop10h 28m
American Airlines
Deal found 9/5C$ 477
Sun 7/66:00 a.m.
YYZ
-
MIA
Nonstop3h 35m
American Airlines
Tue 16/69:55 a.m.
MIA
-
YYZ
1 stop5h 04m
American Airlines
Deal found 9/5C$ 480

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 11 May 2026.

Round-trip from

C$ 408

One-way from

C$ 263

Popular in

December

Cheapest in

June

Average price

C$ 506
Air Transat
  • Air Transat
  • 16/10-23/10
  • Nonstop
  • 6h 49m total
  • Niagara Falls to Key Largo
American Airlines
  • American Airlines
  • 16/5
  • Nonstop
  • 3h 25m total
  • Niagara Falls to Key Largo
Highest demand for flights based on searches. 5% potential increase in price (C$ 36 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 11 May 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

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 29/5

1:34 p.m.-10:51 p.m.

1 stop9h 17m

Miami

Tue 2/6

2:01 p.m.-11:58 p.m.

1 stop9h 57m

C$ 485

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 27/8

6:00 a.m.-1:02 p.m.

1 stop7h 02m

Miami

Wed 2/9

5:55 p.m.-12:04 a.m.

1 stop6h 09m

C$ 485

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Tue 21/7

11:40 a.m.-4:55 p.m.

1 stop5h 15m

Miami

Tue 28/7

2:09 p.m.-11:58 p.m.

1 stop9h 49m

C$ 485

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Wed 27/5

6:30 p.m.-12:47 a.m.

1 stop6h 17m

Miami

Tue 2/6

5:51 p.m.-11:58 p.m.

1 stop6h 07m

C$ 485

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 6/7

12:09 p.m.-6:04 p.m.

1 stop5h 55m

Miami

Thu 9/7

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

1 stop7h 58m

C$ 487

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Thu 28/5

2:30 p.m.-9:03 p.m.

1 stop6h 33m

Miami

Sat 30/5

9:00 a.m.-4:12 p.m.

1 stop7h 12m

C$ 487
Quickest round-trip

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Mon 8/6

12:09 p.m.-6:04 p.m.

1 stop5h 55m

Miami

Wed 10/6

4:00 p.m.-9:59 p.m.

1 stop5h 59m

C$ 487

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Fri 11/9

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

1 stop6h 54m

Miami

Thu 17/9

5:55 p.m.-12:04 a.m.

1 stop6h 09m

C$ 488

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Tue 14/7

7:55 a.m.-6:30 p.m.

1 stop10h 35m

Miami

Sat 1/8

7:05 a.m.-5:19 p.m.

1 stop10h 14m

C$ 566

TorontoMiami

YYZ - MIA

YYZMIA

Toronto Pearson Intl

Sat 13/6

1:40 p.m.-10:17 p.m.

1 stop8h 37m

Miami

Mon 15/6

6:25 a.m.-4:15 p.m.

1 stop9h 50m

C$ 568

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 21 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 11 May 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 20% 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 9 May 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 11 May 2026.

The most flights from NI4 to KE9 are scheduled on a Sunday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 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 11 May 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.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 9h 17m. 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$ 126 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 186 and Air Transat from C$ 193 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 American Airlines (73%), GOL (72%) and Porter Airlines (67%).

  • 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$ 195. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 408.

  • 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.

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 11 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 117AverageC$ 474FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Flair AirlinesCheapestC$ 137AverageC$ 303FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Porter AirlinesCheapestC$ 184AverageC$ 386FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 190AverageC$ 396FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 199AverageC$ 667FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 208AverageC$ 458FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 246AverageC$ 477FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 250AverageC$ 438FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 536AverageC$ 768FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
APG AirlinesCheapestC$ 620AverageC$ 667FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights

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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?

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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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