Cheap flights from Niagara Falls to Key Largo from C$ 250
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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
24 Sep — 1 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Key Largo are usually found in April or January, 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.
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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 August 2026.
Tue 6/106:00 a.m. -
Nonstop3h 34m
Wed 21/108:06 p.m. -
Nonstop3h 23m
Deal found 20/8C$ 395
Tue 8/98:55 a.m. -
Nonstop3h 19m
Tue 15/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 412
Tue 6/108:55 a.m. -
Nonstop3h 19m
Wed 21/101:10 p.m. -
Nonstop3h 15m
Deal found 21/8C$ 418
Wed 21/105:30 p.m. -
Nonstop3h 19m
Sat 31/108:55 p.m. -
Nonstop3h 24m
Deal found 23/8C$ 420
Tue 27/106:00 a.m. -
Nonstop3h 34m
Sat 31/108:06 p.m. -
Nonstop3h 23m
Deal found 20/8C$ 423
Wed 7/1012:55 a.m. -
1 stop17h 10m
Tue 13/108:15 a.m. -
1 stop15h 15m
Deal found 20/8C$ 426
Tue 6/105:30 p.m. -
Nonstop3h 19m
Sat 10/109:45 p.m. -
Nonstop3h 11m
Deal found 23/8C$ 430
Sat 19/92:15 p.m. -
1 stop6h 01m
Sat 26/96:12 a.m. -
1 stop5h 01m
Deal found 20/8C$ 437
Sat 14/114:09 p.m. -
1 stop6h 34m
Wed 18/118:14 p.m. -
Nonstop3h 23m
Deal found 19/8C$ 438
Best flights from Niagara Falls to Key Largo
Discover carefully curated flight deals from Niagara Falls to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 August 2026.
Wed 6/17:30 a.m. -
1 stop6h 16m
Wed 20/12:30 p.m. -
1 stop6h 59m
Deal found 23/8C$ 501
Tue 29/96:00 a.m. -
1 stop6h 07m
Fri 2/109:00 a.m. -
1 stop9h 09m
Deal found 20/8C$ 507
Sat 19/127:44 p.m. -
1 stop5h 28m
Sat 26/127:25 a.m. -
Nonstop3h 14m
Deal found 21/8C$ 604
Thu 10/99:44 a.m. -
2 stops9h 08m
Tue 15/91:44 p.m. -
1 stop5h 18m
Deal found 19/8C$ 527
Sat 5/96:34 p.m. -
1 stop6h 13m
Tue 15/912:03 p.m. -
1 stop5h 16m
Deal found 24/8C$ 557
Sun 13/97:00 a.m. -
1 stop7h 51m
Fri 18/93:57 p.m. -
1 stop8h 02m
Deal found 20/8C$ 538
Fri 16/1012:10 p.m. -
1 stop9h 06m
Mon 19/108:00 a.m. -
1 stop9h 19m
Deal found 21/8C$ 588
Mon 28/97:00 a.m. -
1 stop6h 21m
Fri 2/107:59 p.m. -
1 stop13h 20m
Deal found 21/8C$ 560
Fri 4/95:05 p.m. -
1 stop6h 12m
Sun 6/97:00 a.m. -
1 stop10h 19m
Deal found 20/8C$ 592
Sat 2/110:30 a.m. -
1 stop9h 20m
Fri 8/16:25 p.m. -
1 stop5h 03m
Deal found 24/8C$ 567
Fri 11/98:50 a.m. -
1 stop6h 01m
Tue 15/95:01 p.m. -
2 stops22h 13m
Deal found 22/8C$ 567
Thu 8/107:00 a.m. -
1 stop6h 21m
Thu 15/104:01 p.m. -
1 stop7h 58m
Deal found 24/8C$ 582
Direct flights from Niagara Falls to Key Largo
Explore direct flight options from Niagara Falls to Key Largo based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 August 2026.
Tue 6/106:00 a.m. -
Nonstop3h 34m
Wed 21/108:06 p.m. -
Nonstop3h 23m
Deal found 20/8C$ 395
Tue 8/98:55 a.m. -
Nonstop3h 19m
Tue 15/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 412
Tue 6/108:55 a.m. -
Nonstop3h 19m
Wed 21/101:10 p.m. -
Nonstop3h 15m
Deal found 21/8C$ 418
Wed 21/105:30 p.m. -
Nonstop3h 19m
Sat 31/108:55 p.m. -
Nonstop3h 24m
Deal found 23/8C$ 420
Tue 27/106:00 a.m. -
Nonstop3h 34m
Sat 31/108:06 p.m. -
Nonstop3h 23m
Deal found 20/8C$ 423
Tue 6/105:30 p.m. -
Nonstop3h 19m
Sat 10/109:45 p.m. -
Nonstop3h 11m
Deal found 23/8C$ 430
Mon 12/108:55 a.m. -
Nonstop3h 19m
Wed 21/101:10 p.m. -
Nonstop3h 15m
Deal found 20/8C$ 440
Wed 9/98:55 a.m. -
Nonstop3h 19m
Tue 15/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 444
Tue 6/106:00 a.m. -
Nonstop3h 34m
Tue 13/108:06 p.m. -
Nonstop3h 23m
Deal found 20/8C$ 445
Wed 23/98:55 a.m. -
Nonstop3h 19m
Wed 30/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 459
Last-minute flights from Niagara Falls to Key Largo
Discover last-minute flight deals from Niagara Falls to Key Largo. Data last updated 25 August 2026 and is based on user searches.
Sat 5/95:55 p.m. -
Nonstop3h 28m
Sat 12/98:52 a.m. -
1 stop6h 07m
Deal found 20/8C$ 452
Sat 5/95:55 p.m. -
Nonstop3h 28m
Sat 12/98:45 a.m. -
1 stop6h 53m
Deal found 19/8C$ 456
Tue 8/98:55 a.m. -
Nonstop3h 19m
Tue 15/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 412
Wed 9/98:55 a.m. -
Nonstop3h 19m
Tue 15/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 444
Sat 19/92:15 p.m. -
1 stop6h 01m
Sat 26/96:12 a.m. -
1 stop5h 01m
Deal found 20/8C$ 437
Tue 22/96:15 a.m. -
1 stop6h 50m
Tue 29/93:23 p.m. -
1 stop7h 49m
Deal found 24/8C$ 449
Wed 23/98:55 a.m. -
Nonstop3h 19m
Wed 30/91:10 p.m. -
Nonstop3h 09m
Deal found 24/8C$ 459
One-way flights from Niagara Falls to Key Largo
Search for one-way flight options from Niagara Falls to Key Largo. Find affordable one-way fares based on user searches. Data last updated 25 August 2026.
Wed 28/106:00 a.m. -
Nonstop3h 34m
Deal found 20/8C$ 250
Tue 8/93:00 p.m. -
1 stop7h 17m
Deal found 20/8C$ 252
Sat 21/119:35 a.m. -
Nonstop3h 30m
Deal found 20/8C$ 254
Wed 9/98:55 a.m. -
Nonstop3h 19m
Deal found 19/8C$ 257
Sat 5/95:55 p.m. -
Nonstop3h 28m
Deal found 20/8C$ 260
Tue 22/98:55 a.m. -
Nonstop3h 19m
Deal found 22/8C$ 264
Tue 22/97:45 a.m. -
1 stop5h 20m
Deal found 24/8C$ 265
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 25 August 2026.
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 7,457,451 searches. Data last updated 25 August 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 Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Wed 6/1
7:30 a.m.-1:46 p.m.
1 stop6h 16m
Miami
Wed 20/1
2:30 p.m.-9:29 p.m.
1 stop6h 59m
C$ 501
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Tue 29/9
6:00 a.m.-12:07 p.m.
1 stop6h 07m
Miami
Fri 2/10
9:00 a.m.-6:09 p.m.
1 stop9h 09m
C$ 507
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Thu 10/9
9:44 a.m.-6:52 p.m.
2 stops9h 08m
Miami
Tue 15/9
1:44 p.m.-7:02 p.m.
1 stop5h 18m
C$ 527
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Sun 13/9
7:00 a.m.-2:51 p.m.
1 stop7h 51m
Miami
Fri 18/9
3:57 p.m.-11:59 p.m.
1 stop8h 02m
C$ 538
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Sat 5/9
6:34 p.m.-12:47 a.m.
1 stop6h 13m
Miami
Tue 15/9
12:03 p.m.-5:19 p.m.
1 stop5h 16m
C$ 557
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Mon 28/9
7:00 a.m.-1:21 p.m.
1 stop6h 21m
Miami
Fri 2/10
7:59 p.m.-9:19 a.m.
1 stop13h 20m
C$ 560
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Sat 2/1
10:30 a.m.-7:50 p.m.
1 stop9h 20m
Miami
Fri 8/1
6:25 p.m.-11:28 p.m.
1 stop5h 03m
C$ 567
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Fri 11/9
8:50 a.m.-2:51 p.m.
1 stop6h 01m
Miami
Tue 15/9
5:01 p.m.-3:14 p.m.
2 stops22h 13m
C$ 567
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Thu 8/10
7:00 a.m.-1:21 p.m.
1 stop6h 21m
Miami
Thu 15/10
4:01 p.m.-11:59 p.m.
1 stop7h 58m
C$ 582
TorontoMiami
YYZ Toronto Pearson Intl - MIA Miami
YYZMIA
Toronto Pearson Intl
Fri 16/10
12:10 p.m.-9:16 p.m.
1 stop9h 06m
Miami
Mon 19/10
8:00 a.m.-5:19 p.m.
1 stop9h 19m
C$ 588
Flights are sorted by cheapest round-trip flights first.
Deals found on 19/8
Showing 1-10 of 23 resultsSorted by cheapest first
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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.
YYZ-MIA
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
NI4-KE9
YYZ-MIA
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 August 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 at noon, which can drop the price by up to 10% 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 25 August 2026.
The most flights from NI4 to KE9 are scheduled on a Monday (7 on average). You will have fewer flight options on Wednesday, 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?
Airfare is below average for this route at the moment.
Niagara Falls to Key Largo flights typically cost between C$ 471 and C$ 687 in November.The cheapest round-trip price found within the last 5 days was C$ 390 on Air Canada (29 Nov-11 Dec).
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 22 August 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 25 August 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.
My first flight with an all female flight crew who were the best ever.
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?
United Airlines and Delta can get you from Niagara Falls to Key Largo in just under 6h 07m. Your travel time can differ by up to 09m. Airlines will cover a distance of 1988 km. This flight may include one or multiple stops.
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$ 122 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 186 and Air Transat from C$ 195 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 (70%), Air Canada Rouge (66%) and Qatar Airways (66%).
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$ 978, our data indicates the cheapest price to be C$ 259. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 394.
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.
Top 8 airlines flying from Niagara Falls to Key Largo
Discover the top 8 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 7,457,451 searches. Data last updated 25 August 2026.
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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