Cheap flights from Niagara Falls, ON to Key Largo from C$ 225
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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — MIA
8 Jan — 15 Jan1
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 June or April, booked 29 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 9 December 2025.
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 13/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 351
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Tue 16/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 6/12C$ 386
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Wed 17/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 7/12C$ 393
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Thu 25/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 8/12C$ 398
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Wed 14/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 400
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Wed 17/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 7/12C$ 412
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Fri 19/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 7/12C$ 418
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Mon 22/122:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 8/12C$ 422
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Mon 15/122:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 423
Mon 15/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Fri 30/12:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 9/12C$ 429
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 9 December 2025.
Mon 5/110:45 a.m.YYZ - MIA
1 stop7h 39mUnited Airlines
Wed 7/19:00 a.m.MIA - YYZ
1 stop7h 02mUnited Airlines
Deal found 7/12C$ 429
Wed 7/110:05 a.m.YYZ - MIA
1 stop7h 45mDelta
Tue 13/15:50 a.m.MIA - YYZ
1 stop5h 18mDelta
Deal found 7/12C$ 462
Mon 2/37:15 a.m.YYZ - MIA
1 stop6h 40mPorter Airlines
Wed 4/32:10 p.m.MIA - YYZ
Nonstop3h 20mPorter Airlines
Deal found 8/12C$ 480
Tue 13/17:30 a.m.YYZ - MIA
1 stop7h 08mUnited Airlines
Tue 13/16:25 p.m.MIA - YYZ
1 stop5h 21mUnited Airlines
Deal found 7/12C$ 480
Tue 31/35:19 p.m.YYZ - MIA
1 stop5h 59mDelta
Tue 7/46:29 p.m.MIA - YYZ
1 stop5h 30mDelta
Deal found 8/12C$ 483
Sat 7/29:30 a.m.YYZ - MIA
1 stop7h 04mUnited Airlines
Tue 10/21:45 p.m.MIA - YYZ
1 stop5h 12mUnited Airlines
Deal found 8/12C$ 483
Mon 19/16:10 a.m.YYZ - MIA
1 stop6h 04mDelta
Mon 26/19:24 a.m.MIA - YYZ
1 stop6h 48mDelta
Deal found 7/12C$ 488
Sat 28/36:10 a.m.YYZ - MIA
1 stop12h 21mUnited Airlines
Fri 3/410:19 a.m.MIA - YYZ
1 stop12h 10mUnited Airlines
Deal found 8/12C$ 483
Sat 28/29:30 a.m.YYZ - MIA
1 stop7h 54mUnited Airlines
Tue 3/36:00 a.m.MIA - YYZ
1 stop5h 48mUnited Airlines
Deal found 8/12C$ 483
Sun 1/29:00 a.m.YYZ - MIA
1 stop8h 15mUnited Airlines
Tue 10/26:25 p.m.MIA - YYZ
1 stop5h 21mUnited Airlines
Deal found 7/12C$ 484
Fri 10/42:45 p.m.YYZ - MIA
1 stop7h 51mUnited Airlines
Mon 20/47:00 a.m.MIA - YYZ
1 stop6h 47mUnited Airlines
Deal found 6/12C$ 485
Fri 20/32:57 p.m.YYZ - MIA
1 stop8h 09mUnited Airlines
Fri 27/31:15 p.m.MIA - YYZ
1 stop8h 09mUnited Airlines
Deal found 9/12C$ 487
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 9 December 2025.
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Fri 16/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 8/12C$ 331
Tue 6/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 13/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 332
Mon 9/39:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Thu 12/32:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 9/12C$ 340
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Wed 21/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 6/12C$ 344
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 27/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 6/12C$ 350
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 13/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 351
Mon 19/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Wed 28/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 8/12C$ 358
Last-minute flights from Niagara Falls to Key Largo
Discover last-minute flight deals from Niagara Falls to Key Largo. Data last updated 9 December 2025 and is based on user searches.
Sun 14/129:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 13/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 351
Tue 6/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 13/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 7/12C$ 332
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Fri 16/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 8/12C$ 331
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Wed 21/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 6/12C$ 344
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Tue 27/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 6/12C$ 350
Mon 19/19:40 a.m.YYZ - MIA
Nonstop3h 29mMultiple Airlines
Wed 28/17:00 a.m.MIA - YYZ
2 stops16h 20mMultiple Airlines
Deal found 8/12C$ 346
Wed 21/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Wed 28/12:10 p.m.MIA - YYZ
Nonstop3h 20mAir Transat
Deal found 9/12C$ 355
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 9 December 2025.
Wed 7/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Deal found 7/12C$ 225
Mon 5/13:40 p.m.YYZ - MIA
2 stops20h 14mMultiple Airlines
Deal found 8/12C$ 227
Mon 12/19:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Deal found 9/12C$ 228
Thu 8/17:15 a.m.YYZ - MIA
1 stop12h 32mMultiple Airlines
Deal found 8/12C$ 230
Wed 7/14:55 p.m.YYZ - MIA
Nonstop3h 25mAir Canada
Deal found 8/12C$ 231
Mon 15/125:15 p.m.YYZ - MIA
2 stops24h 40mMultiple Airlines
Deal found 8/12C$ 234
Thu 5/39:40 a.m.YYZ - MIA
Nonstop3h 29mAir Transat
Deal found 8/12C$ 235
Tue 6/13:40 p.m.YYZ - MIA
2 stops21h 26mMultiple Airlines
Deal found 9/12C$ 236
Wed 31/129:40 a.m.YYZ - MIA
Nonstop3h 29mPorter Airlines
Deal found 7/12C$ 238
Tue 27/13:40 p.m.YYZ - MIA
2 stops20h 16mMultiple Airlines
Deal found 7/12C$ 239
Mon 9/27:15 a.m.YYZ - MIA
1 stop6h 40mPorter Airlines
Deal found 7/12C$ 241
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 9 December 2025.
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 9 December 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
Mon 5/1
10:45 a.m.-6:24 p.m.
1 stop7h 39m
Miami
Wed 7/1
9:00 a.m.-4:02 p.m.
1 stop7h 02m
C$ 429
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Wed 7/1
10:05 a.m.-5:50 p.m.
1 stop7h 45m
Miami
Tue 13/1
5:50 a.m.-11:08 a.m.
1 stop5h 18m
C$ 462
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Mon 2/3
7:15 a.m.-1:55 p.m.
1 stop6h 40m
Miami
Wed 4/3
2:10 p.m.-5:30 p.m.
Nonstop3h 20m
C$ 480
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Tue 13/1
7:30 a.m.-2:38 p.m.
1 stop7h 08m
Miami
Tue 13/1
6:25 p.m.-11:46 p.m.
1 stop5h 21m
C$ 480
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Tue 31/3
5:19 p.m.-11:18 p.m.
1 stop5h 59m
Miami
Tue 7/4
6:29 p.m.-11:59 p.m.
1 stop5h 30m
C$ 483
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Sat 7/2
9:30 a.m.-4:34 p.m.
1 stop7h 04m
Miami
Tue 10/2
1:45 p.m.-6:57 p.m.
1 stop5h 12m
C$ 483
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Sat 28/3
6:10 a.m.-6:31 p.m.
1 stop12h 21m
Miami
Fri 3/4
10:19 a.m.-10:29 p.m.
1 stop12h 10m
C$ 483
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Sat 28/2
9:30 a.m.-5:24 p.m.
1 stop7h 54m
Miami
Tue 3/3
6:00 a.m.-11:48 a.m.
1 stop5h 48m
C$ 483
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Sun 1/2
9:00 a.m.-5:15 p.m.
1 stop8h 15m
Miami
Tue 10/2
6:25 p.m.-11:46 p.m.
1 stop5h 21m
C$ 484
TorontoMiami
YYZ - MIA
YYZMIA
Toronto Pearson Intl
Fri 10/4
2:45 p.m.-10:36 p.m.
1 stop7h 51m
Miami
Mon 20/4
7:00 a.m.-1:47 p.m.
1 stop6h 47m
C$ 485
Flights are sorted by cheapest round-trip flights first.
Deals found on 8/12
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 5 December 2025.
Booking 29 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$ 84). Flying from Niagara Falls to Key Largo in August is currently the most expensive (average of C$ 171). 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 9 December 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 9 December 2025.
The most flights from NI4 to KE9 are scheduled on a Friday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 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 9 December 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.
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?
United Airlines, Delta, and Porter Airlines can get you from Niagara Falls to Key Largo in just under 6h 40m. Your travel time can differ by up to 1h 05m. 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$ 114 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 161 and Air Transat from C$ 190 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 (88%), GOL (88%) and Qatar Airways (85%).
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$ 817, our data indicates the cheapest price to be C$ 211. The most popular route (Toronto Pearson Intl - Miami), is priced around C$ 331.
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$ 84). Flying from Niagara Falls to Key Largo in August is currently the most expensive (average of C$ 171). 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.
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 9 December 2025.
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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