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Cheap flights from Moncton to Key Largo from C$ 347

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
YQM — MIA
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Moncton Intl to Key Largo are usually found in June or September, booked 56 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap 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 17 September 2025.

Round-trip from

C$ 609

One-way from

C$ 347

Popular in

December

Cheapest in

June

Average price

C$ 688
Air Canada
  • Air Canada
  • 30/9-11/10
  • 2 total stops
  • 15h 27m total
  • Moncton to Key Largo
Search Deals
Air Canada
  • Air Canada
  • 31/10
  • 2 total stops
  • 9h 56m total
  • Moncton to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Moncton to Key Largo

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 17 September 2025.

Tue 30/96:35 a.m.YQM - MIA
1 stop7h 45mAir Canada
Sat 11/102:25 p.m.MIA - YQM
1 stop7h 42mAir Canada
Deal found 17/9C$ 609
Sat 22/1111:35 a.m.YQM - MIA
2 stops12h 29mUnited Airlines
Fri 28/117:00 a.m.MIA - YQM
2 stops14h 13mUnited Airlines
Deal found 17/9C$ 631
Sat 22/1111:35 a.m.YQM - MIA
2 stops9h 41mAir Canada
Fri 28/118:00 a.m.MIA - YQM
1 stop13h 13mAir Canada
Deal found 17/9C$ 652
Fri 21/116:30 a.m.YQM - MIA
2 stops9h 56mAir Canada
Sat 29/118:00 a.m.MIA - YQM
1 stop13h 13mAir Canada
Deal found 16/9C$ 671
Sun 19/106:35 a.m.YQM - MIA
1 stop7h 45mAir Canada
Thu 23/109:45 p.m.MIA - YQM
1 stop12h 40mAir Canada
Deal found 17/9C$ 674

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 17 September 2025.
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 30/9

6:35 a.m.-1:20 p.m.

1 stop7h 45m

Miami

Sat 11/10

2:25 p.m.-11:07 p.m.

1 stop7h 42m

C$ 609

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sat 22/11

11:35 a.m.-11:04 p.m.

2 stops12h 29m

Miami

Fri 28/11

7:00 a.m.-10:13 p.m.

2 stops14h 13m

C$ 631

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sat 22/11

5:10 a.m.-11:26 a.m.

1 stop7h 16m

Miami

Fri 28/11

8:00 a.m.-10:13 p.m.

1 stop13h 13m

C$ 633

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sun 19/10

6:35 a.m.-1:20 p.m.

1 stop7h 45m

Miami

Thu 23/10

9:45 p.m.-11:25 a.m.

1 stop12h 40m

C$ 671

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Wed 5/11

6:30 a.m.-3:26 p.m.

2 stops9h 56m

Miami

Tue 11/11

4:25 p.m.-10:48 a.m.

2 stops17h 23m

C$ 675

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 27/2

6:30 a.m.-12:16 a.m.

2 stops18h 46m

Miami

Sat 7/3

7:25 a.m.-5:03 p.m.

1 stop8h 38m

C$ 680

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Fri 31/10

6:30 a.m.-3:26 p.m.

2 stops9h 56m

C$ 347

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sat 15/11

6:30 a.m.-4:45 p.m.

2 stops11h 15m

C$ 349

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sun 12/10

5:40 a.m.-10:45 p.m.

2 stops18h 05m

C$ 360

MonctonMiami

YQM - MIA

YQMMIA

Moncton Intl

Sun 12/10

5:40 a.m.-8:48 p.m.

1 stop16h 08m

C$ 381

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 14 results
1
2

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 12 September 2025.

The best time to book flights from Moncton to Key Largo is 56 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, April is the cheapest month in which you can book a flight from Moncton to Key Largo (average of C$ 251). Flying from Moncton to Key Largo in August is currently the most expensive (average of C$ 369). 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 YQM to KE9?

Find hourly flight availability from Moncton 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 17 September 2025.

When flying from Moncton to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Moncton 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 17 September 2025.
Read reviews from past customers who have flown United Airlines and Air 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.
United Airlines
7.4
Good
8,926 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 7h 45m. Fly via Air Canada or United Airlines to get the fastest option. Airlines will cover a distance of 2647 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, April is the cheapest month in which you can book a flight from Moncton to Key Largo (average of C$ 251). Flying from Moncton to Key Largo in August is currently the most expensive (average of C$ 369). 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 455AverageC$ 680FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 498AverageC$ 726FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 514AverageC$ 839FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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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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