C$596 Cheap Flights from Ottawa International (YOW) to Castries (SLUA)

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Find the cheapest month or even day of the year to fly to Castries

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Flight deals from Ottawa International to Castries

Looking for a cheap last-minute deal or the best return flight from Ottawa International Airport to Castries? If you want to travel next month, return fares start from C$696. Find the lowest prices on one-way and return tickets right here.

Castries.C$237 per passenger.Departing Sat., Jul. 18.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat., Jul. 18, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$237, select.

Castries.C$383 per passenger.Departing Sun., Aug. 2.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Ottawa International on Sun., Aug. 2, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$383, select.

Castries.C$383 per passenger.Departing Sat., Jun. 20.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat., Jun. 20, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$383, select.

Find the cheapest month to fly from Ottawa International to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa International to Castries flights are currently cheapest in July.

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Alternative Ottawa International to Castries routes

Looking for the cheapest, fastest or easiest route from Ottawa International to Castries? You could fly into the following airports instead.

St Lucia Vigie

1km from central Castries

Closest

from C$511

Search flights

St Lucia Hewanorra

31km from central Castries

Cheapest

from C$237

Search flights

Ottawa to Castries: Flight information

The things to know before you go.

Cheapest flight found	C$237
Cheapest month to fly	July

Finding cheap flights from Ottawa International to Castries: Frequently asked questions

How many airports are there in Castries?

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.

How much are return flights from Ottawa International to Castries?

The best price we found for a return flight from Ottawa International to Castries is C$596. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Ottawa International to Castries?

Currently, there are no airlines that fly direct from Ottawa International to Castries. But we found flights with one or more stops from C$596.

How many flights are there a week from Ottawa International to Castries?

As of June 2026, there are no flights flying from Ottawa International to Castries.

When is the cheapest time to fly from Ottawa International to Castries?

The cheapest month to fly from Ottawa International to Castries is usually August.

Which is the cheapest airport to fly into in Castries?

If you're flying from Ottawa International Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from C$596.

Which upcoming date is cheapest to fly from Ottawa International Airport to Castries on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ottawa International Airport to Castries on Wednesday, August 19, 2026.

Can I get a direct flight from Ottawa International Airport to Castries?

No airlines currently offer direct flights between Ottawa International Airport and Castries. Most routes have one or more stops.

How can I get the best flight deal from Ottawa International Airport to Castries?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Castries?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Castries?

In June, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.

Which is the cheapest airline to fly from Ottawa International Airport to Castries with?

Currently, Air Canada offers the cheapest flight tickets to Castries.

Flying from Ottawa/Macdonald-Cartier International Airport (YOW) to Castries: what you need to know

Castries and Ottawa (where Ottawa/Macdonald-Cartier International Airport is located) share the UTC-4 timezone. That means you won't need to change your watch once you arrive.
To ensure you catch your flight from YOW to Castries, leave plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the standard rule.
Flying during a peak month such as August? School holidays and other popular seasons can mean longer lines at check-in and security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.
You can enter Saint Lucia for tourism purposes without a visa if you have a passport from Canada. But before reserving your flight tickets from Ottawa/Macdonald-Cartier International Airport to Castries, double-check for the newest rules and regulations. Visa rules are subject to change, and you may require some travel documentation if your trip is for business or another reason.
YOW is around 13 kilometres from central Ottawa. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 19 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 43 minutes.
Booked an early flight from Ottawa/Macdonald-Cartier International Airport to Castries? Avoid the stress of rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays close to YOW:

How to find the cheapest flights from Ottawa/Macdonald-Cartier International Airport (YOW) to Castries

C$237 is the lowest price for a one-way ticket from Ottawa/Macdonald-Cartier International Airport to Castries. Return flights start from C$596. These prices can change based on availability.
Don't leave things to the last moment. You're more likely to find cheap tickets from YOW to Castries if you book early. Airlines often offer some amazing early bird discounts.
The 'Whole month' tool shows you the cheapest tickets from Ottawa/Macdonald-Cartier International Airport to Castries across every month. It's a great way to snap up a bargain if your travel plans aren't set in stone.
Sign into your online account or use the app to create a Price Alert. We'll get in touch right away if there's a better deal on this route. It's simple to do, and it'll save you time checking for cheap tickets from YOW to Castries every day.
Use the filters to tailor your flights from Ottawa/Macdonald-Cartier International Airport to Castries. Enter your ideal departure and arrival times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Airports in Castries

Hewanorra Airport (UVF)

Hewanorra Airport (UVF) to central Castries takes about 1 hour and 9 minutes by car. It's approximately 56 kilometres away.
If you're coming in on a late flight from Ottawa/Macdonald-Cartier International Airport to Castries, few things beat the convenience of staying near the terminal. Collect your bags from the carousel and then be showered and resting soon after at one of these hotels near UVF:

George F. L. Charles Airport (SLU)

As soon as your flight from Ottawa/Macdonald-Cartier International Airport to Castries has hit the tarmac, you can reach the city centre in around 6 minutes by car. Central Castries is roughly 3 kilometres from George F. L. Charles Airport (SLU).
You can also opt for public transport, which will take approximately 40 minutes.
Hang the 'Do not disturb' sign on your door and relax at a hotel near SLU. Here are a few options where you can put your feet up after your flight from YOW to Castries:

Best time to go to Castries

It's time to work out your travel dates for your flight from Ottawa/Macdonald-Cartier International Airport to Castries. July is the most popular month to visit Castries. If you prefer a more relaxed atmosphere, go in May.
Before locking in your flight from Ottawa/Macdonald-Cartier International Airport to Castries, think about the kind of weather you enjoy. September is the warmest month in Castries, with the temperature ranging from 26ºC to 30ºC.
February has average temperatures of between 24ºC and 28ºC. Search for cheap flights from YOW to Castries sometime around then if you want to travel in cooler conditions.

More about Castries

When it comes to searching for somewhere to lay your head, you'll find the best places to stay in Castries right here. Browse these options after locking in your flight from Ottawa/Macdonald-Cartier International Airport to Castries:
Derek Walcott Square and Morne Fortune are just two of the popular attractions to put on your Castries travel itinerary. Keep the momentum going by heading to Immaculate Conception Church.

Complete your Castries trip with a car rental

Finding you a cheap flight from Ottawa/Macdonald-Cartier International Airport to Castries isn't the only thing we're good at. Check out our car rentals in Castries and have more freedom to explore. We find deals from trusted car rental companies and put them all in one place. You can instantly compare rates and then book with no fees.