Cheap flights from Ottawa to Key Largo from C$ 255

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — MIA
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Ottawa to Key Largo are usually found in June or September, booked 78 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from Ottawa to Key Largo

Keep the following information in mind while searching for Ottawa to Key Largo flight deals. Data was last updated 20 October 2025.

Round-trip from

C$ 458

One-way from

C$ 255

Popular in

October

Cheapest in

June

Average price

C$ 887
Porter Airlines
  • Porter Airlines
  • 24/1-2/2
  • Nonstop
  • 7h 25m total
  • Ottawa to Key Largo
11/12
  • 11/12
  • 2 total stops
  • 26h 32m total
  • Ottawa to Key Largo
Highest demand for flights based on searches. 4% potential increase in price (C$ 46 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Find flight deals from Ottawa to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Key Largo
Explore the most affordable flight options available from Ottawa to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 October 2025.

Tue 9/123:55 p.m.YOW - MIA
1 stop17h 27mMultiple Airlines
Tue 16/125:58 p.m.MIA - YOW
2 stops30h 27mMultiple Airlines
Deal found 19/10C$ 474
Tue 2/123:55 p.m.YOW - MIA
1 stop17h 27mMultiple Airlines
Mon 8/126:05 a.m.MIA - YOW
2 stops18h 20mMultiple Airlines
Deal found 20/10C$ 484
Thu 13/114:15 p.m.YOW - MIA
2 stops32h 19mMultiple Airlines
Tue 18/1110:15 p.m.MIA - YOW
1 stop14h 20mMultiple Airlines
Deal found 19/10C$ 486
Sun 7/127:00 a.m.YOW - MIA
2 stops28h 12mMultiple Airlines
Thu 11/126:05 a.m.MIA - YOW
2 stops18h 20mMultiple Airlines
Deal found 20/10C$ 489
Wed 3/124:15 p.m.YOW - MIA
2 stops21h 52mMultiple Airlines
Wed 10/128:53 p.m.MIA - YOW
1 stop15h 42mMultiple Airlines
Deal found 19/10C$ 491
Fri 5/123:55 p.m.YOW - MIA
1 stop23h 08mMultiple Airlines
Mon 15/129:03 p.m.MIA - YOW
2 stops20h 10mMultiple Airlines
Deal found 18/10C$ 493
Mon 17/114:35 p.m.YOW - MIA
2 stops16h 37mMultiple Airlines
Mon 24/118:20 p.m.MIA - YOW
1 stop16h 15mMultiple Airlines
Deal found 17/10C$ 498
Thu 11/129:25 a.m.YOW - MIA
1 stop5h 38mMultiple Airlines
Mon 15/123:11 p.m.MIA - YOW
2 stops26h 02mMultiple Airlines
Deal found 20/10C$ 502
Thu 4/127:00 a.m.YOW - MIA
2 stops39h 42mMultiple Airlines
Thu 11/128:53 p.m.MIA - YOW
1 stop15h 42mMultiple Airlines
Deal found 20/10C$ 503
Fri 5/123:55 p.m.YOW - MIA
1 stop23h 08mMultiple Airlines
Sun 14/126:09 p.m.MIA - YOW
2 stops30h 16mMultiple Airlines
Deal found 17/10C$ 509

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa 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 20 October 2025.
Use the filters below to find and compare flights from Ottawa to Key Largo that are best for you.

Fly from

Ottawa

Fly to

Key Largo

Route

Depart

Return

Price

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Wed 28/1

7:00 a.m.-10:58 a.m.

2 stops27h 58m

Miami

Tue 3/2

12:20 p.m.-5:25 p.m.

1 stop29h 05m

C$ 458

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Fri 5/12

3:55 p.m.-3:03 p.m.

1 stop23h 08m

Miami

Mon 15/12

9:03 p.m.-5:13 p.m.

2 stops20h 10m

C$ 493

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Sat 24/1

10:10 a.m.-1:55 p.m.

Nonstop3h 45m

Miami

Mon 2/2

2:55 p.m.-6:35 p.m.

Nonstop3h 40m

C$ 516

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Tue 3/3

7:30 p.m.-11:16 a.m.

1 stop15h 46m

Miami

Wed 4/3

2:15 p.m.-9:18 p.m.

1 stop7h 03m

C$ 516

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Sun 15/2

7:30 p.m.-11:16 a.m.

1 stop15h 46m

Miami

Sat 21/2

6:00 a.m.-1:34 p.m.

1 stop7h 34m

C$ 523

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Sun 25/1

6:00 a.m.-12:38 p.m.

1 stop6h 38m

Miami

Sun 1/2

6:00 a.m.-1:32 p.m.

1 stop7h 32m

C$ 523

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Wed 28/1

6:20 a.m.-9:54 p.m.

2 stops15h 34m

Miami

Sun 8/2

6:00 a.m.-1:32 p.m.

1 stop7h 32m

C$ 523

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Mon 19/1

5:55 p.m.-11:59 p.m.

1 stop6h 04m

Miami

Mon 26/1

12:18 p.m.-9:18 p.m.

1 stop9h 00m

C$ 523

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Fri 6/2

5:55 p.m.-11:59 p.m.

1 stop6h 04m

Miami

Fri 13/2

6:00 a.m.-1:34 p.m.

1 stop7h 34m

C$ 524

OttawaMiami

YOW - MIA

YOWMIA

Ottawa

Mon 5/1

6:45 a.m.-1:09 p.m.

1 stop6h 24m

Miami

Mon 26/1

2:55 p.m.-6:35 p.m.

Nonstop3h 40m

C$ 526

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

Showing 1-10 of 20 results
1
2

Best time to book a flight from Ottawa to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Key Largo. Price data was last updated on 17 October 2025.

The price you pay for your flight from Ottawa to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Ottawa to Key Largo (average of C$ 118). Flying from Ottawa to Key Largo in July is currently the most expensive (average of C$ 202). 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 YOW to KE9?

Find hourly flight availability from Ottawa 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 20 October 2025.

When flying from Ottawa to Key Largo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 26% versus a flight in the morning.

What is the cheapest day to fly from Ottawa to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Key Largo. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Ottawa to Key Largo flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at noon 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 20 October 2025.
See what other customers who have flown with Porter Airlines,United Airlines, andAir Canada from Ottawa to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from Ottawa 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 Ottawa to Key Largo?

    If you book a flight to Key Largo from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa. There are 0 flights from Ottawa to Key Largo per day from 5 different airlines.

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

    Airlines like Porter Airlines and United Airlines fly from Ottawa to Key Largo in about 3h 45m. The time it takes to get you to your destination can typically vary by up to 12h 01m. The distance from Ottawa to Key Largo is about 2208 km. This flight may include one or multiple stops.

  • What are the cheapest flights from Ottawa to Key Largo?

    While on average a flight from Ottawa to Key Largo is generally C$ 558, our data shows the cheapest flight currently is C$ 461. When looking at the most popular route, (Ottawa - Miami), you can expect to pay C$ 467 for that flight.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ottawa to Key Largo (average of C$ 118). Flying from Ottawa to Key Largo in July is currently the most expensive (average of C$ 202). 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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Alternative routes for Ottawa to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ottawa to Key Largo

Discover the top 5 airlines that operate flights from Ottawa 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 20 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 219AverageC$ 665FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 264AverageC$ 487FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 277AverageC$ 424FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 314AverageC$ 776FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 484AverageC$ 543FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Key Largo?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key Largo from Ottawa.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to Key Largo flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Ottawa to Key Largo flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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