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Cheap flights from Moncton to Key Largo from C$ 338

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
YQM — MIA
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Moncton to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from Moncton to Key Largo
Explore the most affordable flight options available from Moncton to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 January 2026.

Tue 10/311:35 a.m.
YQM
-
MIA
1 stop6h 54m
Air Canada
Mon 16/37:25 a.m.
MIA
-
YQM
2 stops12h 06m
Air Canada
Deal found 25/1C$ 659
Fri 6/35:55 p.m.
YQM
-
MIA
1 stop7h 21m
Air Canada
Fri 20/37:25 a.m.
MIA
-
YQM
2 stops12h 06m
Air Canada
Deal found 25/1C$ 666
Thu 28/55:25 a.m.
YQM
-
MIA
1 stop7h 48m
Air Canada
Sun 31/59:45 p.m.
MIA
-
YQM
1 stop12h 22m
Air Canada
Deal found 24/1C$ 697
Sun 5/45:20 a.m.
YQM
-
MIA
1 stop6h 58m
Air Canada
Wed 8/412:25 p.m.
MIA
-
YQM
1 stop10h 21m
Air Canada
Deal found 25/1C$ 733
Sun 5/46:30 a.m.
YQM
-
MIA
2 stops17h 15m
United Airlines
Wed 8/46:00 p.m.
MIA
-
YQM
2 stops27h 10m
United Airlines
Deal found 25/1C$ 766
Thu 12/311:35 a.m.
YQM
-
MIA
1 stop11h 54m
Air Canada
Thu 19/36:15 p.m.
MIA
-
YQM
1 stop15h 33m
Air Canada
Deal found 26/1C$ 767

Find flight deals from Moncton to Key Largo

Keep the following information in mind while searching for Moncton to Key Largo flight deals. Data was last updated 26 January 2026.

Round-trip from

C$ 656

One-way from

C$ 338

Popular in

May

Cheapest in

June

Average price

C$ 738
Air Canada
  • Air Canada
  • 10/3-16/3
  • 3 total stops
  • 19h 00m total
  • Moncton to Key Largo
Search Deals
Air Canada
  • Air Canada
  • 10/3
  • 1 total stop
  • 6h 54m total
  • Moncton to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Moncton 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 26 January 2026.
Use the filters below to find and compare flights from Moncton to Key Largo that are best for you.

Fly from

Moncton

Fly to

Key Largo

Route

Depart

Return

Price

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Tue 10/3

11:35 a.m.-5:29 p.m.

1 stop6h 54m

Miami

Mon 16/3

7:25 a.m.-8:31 p.m.

2 stops12h 06m

C$ 659

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 6/3

5:55 p.m.-12:16 a.m.

1 stop7h 21m

Miami

Fri 20/3

7:25 a.m.-8:31 p.m.

2 stops12h 06m

C$ 666

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Thu 28/5

5:25 a.m.-12:13 p.m.

1 stop7h 48m

Miami

Sun 31/5

9:45 p.m.-6:23 p.m.

2 stops19h 38m

C$ 697

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sun 5/4

6:30 a.m.-10:45 p.m.

2 stops17h 15m

Miami

Wed 8/4

6:00 p.m.-10:10 p.m.

2 stops27h 10m

C$ 766

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Tue 10/3

11:35 a.m.-5:29 p.m.

1 stop6h 54m

C$ 338

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Tue 10/3

1:40 p.m.-8:13 p.m.

3 stops31h 33m

C$ 355

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 20/2

6:35 a.m.-1:21 p.m.

2 stops31h 46m

C$ 360

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 13/3

1:40 p.m.-7:16 p.m.

2 stops30h 36m

C$ 410

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 13/3

5:00 a.m.-11:25 a.m.

1 stop7h 25m

C$ 659

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Best time to book a flight from Moncton to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Moncton 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 Moncton to Key Largo

How far ahead should I book a flight from Moncton to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Moncton to Key Largo. Price data was last updated on 23 January 2026.

The best time to book flights from Moncton to Key Largo is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Moncton to Key Largo?

Currently, January is the cheapest month in which you can book a flight from Moncton to Key Largo (average of C$ 214). Flying from Moncton to Key Largo in October is currently the most expensive (average of C$ 468). 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.

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 26 January 2026.
Read reviews from past customers who have flown Porter Airlines,United Airlines, andAir Canada from Moncton 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
7.9
Good
412 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Crew

8.6

Overall

7.9

Food

7.5

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
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Crew

8.6

Overall

7.9

Food

7.5

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
9,199 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Crew

8.6

Overall

7.9

Food

7.5

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
10,656 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Crew

8.6

Overall

7.9

Food

7.5

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 Moncton to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Moncton to Key Largo?

    If you book a flight to Key Largo from Moncton, you will be flying from Moncton Intl, which is the city’s only airport. Moncton Intl (YQM) is located 8.8 km from the centre of Moncton. There are 0 flights from Moncton Intl to Key Largo per day from 3 different airlines.

  • How long is the flight from Moncton to Key Largo?

    There are many flights that can get you from Moncton to Key Largo in 6h 54m. Fly via Air Canada to get the fastest option. Airlines will cover a distance of 2647 km.

  • Can I find deals for flights from Moncton to Key Largo that include hotel bookings?

    Yes. In addition to deals on Moncton to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Moncton to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Moncton to Key Largo.

  • Can I find deals for business class flights from Moncton to Key Largo?

    Yes. Cheapflights offers flight deals from Moncton 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 Moncton to Key Largo?

    Currently, January is the cheapest month in which you can book a flight from Moncton to Key Largo (average of C$ 214). Flying from Moncton to Key Largo in October is currently the most expensive (average of C$ 468). 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 3 airlines flying from Moncton to Key Largo

Discover the top 3 airlines that operate flights from Moncton 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 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 249AverageC$ 602FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 334AverageC$ 732FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 453AverageC$ 668FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Moncton to Key Largo?

Deals for Moncton 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 Moncton to Key Largo?

Cheapflights helps you find that perfect flight to Key Largo from Moncton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Moncton to Key Largo with no change fees?

Yes, we can. To see specific flights from Moncton to Key Largo with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Moncton to Key Largo become cheaper?

Yes! Start tracking prices for Moncton 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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