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Cheap flights from Ottawa to Castries from C$ 626

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SLU
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Castries
Explore the most affordable flight options available from Ottawa to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 July 2026.

Sat 5/127:00 a.m.
YOW
-
SLU
2 stops35h 00m
Multiple Airlines
Sat 12/123:45 p.m.
SLU
-
YOW
2 stops43h 02m
Multiple Airlines
Deal found 27/7C$ 860
Tue 24/115:10 a.m.
YOW
-
SLU
2 stops12h 50m
Multiple Airlines
Sat 5/123:45 p.m.
SLU
-
YOW
2 stops44h 52m
Multiple Airlines
Deal found 23/7C$ 893
Wed 7/105:10 a.m.
YOW
-
SLU
2 stops13h 50m
Multiple Airlines
Wed 14/1012:35 p.m.
SLU
-
YOW
2 stops13h 00m
Multiple Airlines
Deal found 26/7C$ 922
Thu 8/107:00 a.m.
YOW
-
SLU
2 stops12h 00m
Multiple Airlines
Thu 15/1012:35 p.m.
SLU
-
YOW
2 stops20h 40m
Multiple Airlines
Deal found 26/7C$ 1,102
Thu 8/105:10 a.m.
YOW
-
SLU
2 stops13h 50m
Multiple Airlines
Wed 14/1012:35 p.m.
SLU
-
YOW
2 stops13h 00m
Multiple Airlines
Deal found 26/7C$ 1,153
Fri 9/107:00 a.m.
YOW
-
SLU
2 stops12h 00m
Multiple Airlines
Wed 14/1012:35 p.m.
SLU
-
YOW
2 stops12h 10m
Multiple Airlines
Deal found 26/7C$ 1,251

Find flight deals from Ottawa to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 July 2026.

Round-trip from

C$ 834

One-way from

C$ 626
10/1-17/1
  • 10/1-17/1
  • 4 total stops
  • 34h 27m total
  • Ottawa to Castries
Search Deals
6/9
  • 6/9
  • 2 total stops
  • 22h 55m total
  • Ottawa to Castries
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Castries 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 27 July 2026.
Use the filters below to find and compare flights from Ottawa to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Sun 10/1

5:45 a.m.-7:00 p.m.

2 stops12h 15m

Castries George F. L. Charle

Sun 17/1

12:35 p.m.-9:47 a.m.

2 stops22h 12m

C$ 834

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Sat 5/12

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

2 stops35h 00m

Castries George F. L. Charle

Sat 12/12

3:45 p.m.-9:47 a.m.

2 stops43h 02m

C$ 860

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Wed 7/10

5:10 a.m.-7:00 p.m.

2 stops13h 50m

Castries George F. L. Charle

Wed 14/10

12:35 p.m.-1:35 a.m.

2 stops13h 00m

C$ 922
Quickest round-trip

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Fri 9/10

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

2 stops12h 00m

Castries George F. L. Charle

Wed 14/10

12:35 p.m.-12:45 a.m.

2 stops12h 10m

C$ 1,253

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Thu 8/10

5:55 p.m.-2:35 p.m.

3 stops20h 40m

Castries George F. L. Charle

Thu 15/10

3:45 p.m.-4:20 p.m.

3 stops24h 35m

C$ 1,365

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Wed 2/9

6:25 p.m.-1:10 p.m.

2 stops18h 45m

Castries George F. L. Charle

Tue 8/9

11:45 a.m.-5:35 p.m.

2 stops29h 50m

C$ 1,467

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Tue 3/11

5:40 a.m.-9:30 a.m.

2 stops26h 50m

Castries George F. L. Charle

Mon 9/11

7:40 p.m.-12:42 a.m.

2 stops30h 02m

C$ 1,536

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Wed 9/9

6:25 p.m.-1:10 p.m.

2 stops18h 45m

Castries George F. L. Charle

Tue 15/9

11:45 a.m.-12:20 a.m.

3 stops36h 35m

C$ 1,557
Cheapest one-way
Quickest one-way

OttawaCastries

YOW - SLU

YOWSLU

Ottawa

Thu 3/9

8:55 p.m.-2:35 p.m.

2 stops17h 40m

C$ 1,398

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Sorted by cheapest first

Best time to book a flight from Ottawa to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries 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.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Ottawa to Castries?

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

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

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

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Marigot Bay

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ottawa to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Castries flights
Pierre Elliott Trudeau Intl to Castries flights
Pearson Intl to Castries flights
Ottawa to Castries flights
Pierre Elliott Trudeau Intl to Castries flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to Castries?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to Castries. 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 Castries?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ottawa to Castries for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Castries from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Ottawa to Castries on Cheapflights with our Price Alert feature and get notified when better prices are available.

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