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$472+ Cheap flights from Key Largo, FL to Sudbury, ON (YSB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — YSB
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Key Largo to Sudbury

Keep the following information in mind while searching for Key Largo to Sudbury flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$472
(Air Canada)
Provider with most accurate pricing for Miami-Sudbury flight deals.
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Provider most trusted by Cheapflights users for Miami-Sudbury flights.
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From Key Largo to Sudbury
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Find flight deals from Key Largo to Sudbury

Best flights from Key Largo to Sudbury
Discover carefully curated flight deals from Key Largo to Sudbury that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 3, 2025.

This Air Canada deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:25 pmMIA - YSB
1 stop6h 56mAir Canada
Mon 5/49:45 amYSB - MIA
2 stops11h 41mAir Canada
Deal found 10/31$472

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Sudbury 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 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Key Largo to Sudbury that are best for you.

Fly from

Key Largo

Fly to

Sudbury

Route

Depart

Return

Price

MiamiSudbury

MIA - YSB

MIAYSB

Miami

Thu 4/30

12:25 pm-7:21 pm

1 stop6h 56m

Sudbury

Mon 5/4

9:45 am-9:26 pm

2 stops11h 41m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Best time to book a flight from Key Largo to Sudbury

Have a flexible travel schedule? Discover the best time to fly to Sudbury from Key Largo 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 Key Largo to Sudbury
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Sudbury. 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 into for flights to Sudbury from Key Largo?

    Located just 13.0 mi from the city center, Sudbury is the airport most travelers will use when flying to Sudbury from Key Largo. Booking flights from Key Largo to Sudbury (YSB) should be relatively easy as there are 0 daily inbound flights from Key Largo from 0 different airlines.

  • How long is the flight from Key Largo to Sudbury, Ontario?

    Departing from Key Largo to Sudbury, Ontario will take you 6h 56m. There are 1438 mi between Key Largo and Sudbury, Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Sudbury by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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