$375 Flights from Ottawa (YOWA) to Castries (SLUA)

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Flight deals from Ottawa to Castries

Looking for a cheap last-minute deal or the best round-trip flight from Ottawa to Castries? If you want to travel next month, round-trip fares start from $1,405. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Ottawa to Castries

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

Alternative Ottawa to Castries routes

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

Ottawa to Castries: Flight information

The things to know before you go.
Cheapest flight found$375
Cheapest month to flyMay

Finding cheap flights from Ottawa to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a round-trip flight from Ottawa to Castries is $335. 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.
Currently, there are no airlines that fly direct from Ottawa to Castries. But we found flights with one or more stops from $335.
There are no flights flying from Ottawa to Castries, as of March 2026.
The cheapest month to fly from Ottawa to Castries is usually June.
If you're flying from Ottawa, the cheapest airport near Castries is St Lucia Hewanorra – which is 19.0 miles away from the center of Castries. We've found flights to this airport from $335.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to Castries on Wednesday, June 17, 2026.
No airlines currently offer direct flights between Ottawa and Castries. Most routes have one or more stops.
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.
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.
In March, the average temperature is usually around 79°F. September is typically the warmest month in Castries, when it usually averages around 83°F. You can expect the least rain in February. The coldest month is February, with temperatures averaging 77°F. The rainiest month is October.
The cheapest airline that flies to Castries is WestJet.

Flying from Ottawa to Castries: what you need to know

  • Ottawa's main base, Ottawa/Macdonald-Cartier International Airport (YOW), is where countless incredible trips begin. Explore your departure choices from here for your flight from Ottawa to Castries.

  • When it comes to choosing where to land in Castries, George F. L. Charles Airport (SLU) and Hewanorra Airport (UVF) are the major entry points.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This leaves you with plenty of time to board your Ottawa to Castries flight.

  • Taking off during a peak time like a public holiday? Expect longer queues at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

How to find the cheapest flights from Ottawa to Castries

  • Don't leave everything to the last minute. You're more likely to find cheap Ottawa to Castries flights if you book ahead. Airlines often offer some amazing early bird discounts.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price in each month when looking for your plane ticket from Ottawa to Castries.

  • Getting a cheap flight from Ottawa to Castries is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Lock in a cheap Ottawa to Castries flight with the help of our filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Ottawa

Ottawa/Macdonald-Cartier International Airport (YOW)

  • YOW is about 7 miles from central Ottawa. If you're ride-sharing, driving or catching a cab from the center, it'll take you 20 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be around 45 minutes.

  • Searching for a convenient hotel close to Ottawa/Macdonald-Cartier International Airport? If you're boarding an early flight from Ottawa to Castries, these stays will have you sleeping moments from your departure lounge:

  • 58.21% of flights that depart Ottawa/Macdonald-Cartier International Airport make it to their destination on time.

  • YOW's address is 50 Airport Road.

Arriving in Castries

George F. L. Charles Airport (SLU)

  • George F. L. Charles Airport (SLU) is approximately 1 mile from central Castries. If you're catching a cab or a ride-share, the drive takes around 5 minutes.

  • It typically takes 40 minutes to get there on public transport.

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Ottawa to Castries. Reserve one of these accommodation options near SLU instead:

  • Grab a George F. L. Charles Airport rental car and discover Castries and beyond with your own set of wheels. Drive A Matic, Final Rentals and Sixt are popular providers to choose from here.

  • To lock in the lowest price, book your vehicle from George F. L. Charles Airport about one week in advance of your Ottawa to Castries flight.

Hewanorra Airport (UVF)

  • Hewanorra Airport (UVF) is about 19 miles from central Castries. Following your flight from Ottawa to Castries, it'll take you approximately 1 hour 10 minutes to reach the heart of the city in a cab or ride-share.

  • After your flight from Ottawa to Castries, kick back at a hotel near UVF. These are some great accommodation options that'll help you slip into relaxation mode:

  • Forget about inconvenient public transport schedules or long cab queues. Grab a Hewanorra Airport rental car and take your journey in whatever direction you like. Compare offers from Drive A Matic, Sixt and Final Rentals.

  • Get first dibs on the best options. Securing your ride from UVF one week in advance often means better prices and a wider choice of vehicles.

Best time to go to Castries

  • June is the busiest month for flights from Ottawa to Castries. To avoid the crowds, visit Castries in February.

  • Lock in an Ottawa to Castries ticket departing in September if you're eager to visit the city during its warmest month. You can expect temperatures in Castries to range from 79ºF to 86ºF.

  • February sees average temperatures of between 75ºF and 82ºF. Look for cheap flights from Ottawa to Castries around that time if you'd rather travel in cooler conditions.

More about Castries

  • When it comes to searching for somewhere to rest your head, you'll find the top stays in Castries right here. Check out these options as soon as you've locked in your flight from Ottawa to Castries:

  • Derek Walcott Square and Morne Fortune are just a couple of the major attractions to put on your Castries to-do list. Keep the momentum going by heading to Immaculate Conception Church.

Explore more of Saint Lucia

  • Castries will leave a lasting impression, but there are so many other parts of Saint Lucia waiting to be discovered. About 20 miles south of Castries, a visit to Vieux Fort will keep your itinerary packed. Start with leading sights like Maria Islands Museum, Anse Des Sables Beach and YoungFaith Park.

  • Next up? Head for Micoud. It's about 15 miles south-east of Castries and features highlights including Josephine Splash Park and Ti Rocher Community Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.