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Cheap flights from Ontario to Castries from C$ 319

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — UVF
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Castries
Explore the most affordable flight options available from Ontario to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 January 2026.

Thu 29/17:00 a.m.
YUL
-
UVF
1 stop31h 03m
American Airlines
Thu 5/22:46 p.m.
UVF
-
YUL
2 stops25h 34m
American Airlines
Deal found 28/1C$ 528
Mon 2/212:59 p.m.
YUL
-
UVF
2 stops25h 04m
American Airlines
Mon 9/25:02 p.m.
UVF
-
YUL
2 stops23h 18m
American Airlines
Deal found 27/1C$ 534
Thu 26/35:40 a.m.
YOW
-
UVF
1 stop8h 06m
WestJet
Tue 7/42:40 p.m.
UVF
-
YOW
1 stop9h 59m
WestJet
Deal found 28/1C$ 540
Wed 4/36:00 a.m.
YYZ
-
UVF
1 stop8h 58m
American Airlines
Wed 11/33:58 p.m.
UVF
-
YYZ
1 stop20h 31m
American Airlines
Deal found 27/1C$ 573
Mon 9/31:55 p.m.
YYZ
-
UVF
2 stops25h 03m
American Airlines
Mon 16/33:58 p.m.
UVF
-
YYZ
2 stops27h 06m
American Airlines
Deal found 27/1C$ 576
Wed 25/36:00 a.m.
YUL
-
UVF
1 stop9h 25m
Air Canada
Wed 1/44:20 p.m.
UVF
-
YUL
1 stop9h 31m
Air Canada
Deal found 27/1C$ 577
Mon 9/26:00 a.m.
YYZ
-
UVF
1 stop9h 02m
American Airlines
Mon 16/24:58 p.m.
UVF
-
YYZ
1 stop20h 29m
American Airlines
Deal found 27/1C$ 581
Sat 7/25:15 p.m.
YYZ
-
UVF
2 stops19h 31m
American Airlines
Thu 12/23:48 p.m.
UVF
-
YYZ
2 stops19h 31m
American Airlines
Deal found 28/1C$ 582
Thu 5/36:00 a.m.
YYZ
-
UVF
1 stop8h 58m
American Airlines
Thu 12/33:58 p.m.
UVF
-
YYZ
2 stops17h 51m
American Airlines
Deal found 27/1C$ 585
Thu 5/38:30 a.m.
YYZ
-
UVF
Nonstop5h 16m
WestJet
Tue 10/32:40 p.m.
UVF
-
YYZ
Nonstop5h 58m
WestJet
Deal found 27/1C$ 586
Sat 7/24:30 p.m.
YYZ
-
UVF
1 stop21h 33m
American Airlines
Wed 18/24:58 p.m.
UVF
-
YYZ
1 stop20h 29m
American Airlines
Deal found 27/1C$ 595
Sun 1/26:00 a.m.
YYZ
-
UVF
1 stop8h 03m
American Airlines
Thu 5/22:46 p.m.
UVF
-
YYZ
1 stop22h 36m
American Airlines
Deal found 27/1C$ 601

Find flight deals from Ontario to Castries

Keep the following information in mind while searching for Ontario to Castries flight deals. Data was last updated 29 January 2026.

Round-trip from

C$ 540

One-way from

C$ 367

Popular in

December

Cheapest in

September

Average price

C$ 794
WestJet
  • WestJet
  • 26/3-7/4
  • 2 total stops
  • 18h 05m total
  • Ontario to Castries
Search Deals
Air Canada
  • Air Canada
  • 18/2
  • Nonstop
  • 5h 10m total
  • Ontario to Castries
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 218 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 29 January 2026.
Use the filters below to find and compare flights from Ontario to Castries that are best for you.

Fly from

Ontario

Fly to

Castries

Route

Depart

Return

Price

OttawaCastries

YOW - UVF

YOWUVF

Ottawa

Thu 26/3

5:40 a.m.-1:46 p.m.

1 stop8h 06m

Castries Hewanorra

Tue 7/4

2:40 p.m.-12:39 a.m.

1 stop9h 59m

C$ 540

TorontoCastries

YYZ - UVF

YYZUVF

Toronto Pearson Intl

Wed 1/4

10:05 a.m.-3:20 p.m.

Nonstop5h 15m

Castries Hewanorra

Tue 7/4

2:40 p.m.-8:38 p.m.

Nonstop5h 58m

C$ 586

TorontoCastries

YYZ - UVF

YYZUVF

Toronto Pearson Intl

Thu 19/2

4:30 p.m.-3:18 p.m.

1 stop21h 48m

Castries Hewanorra

Thu 26/2

3:48 p.m.-12:27 p.m.

1 stop21h 39m

C$ 641

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

9:30 p.m.-4:20 p.m.

2 stops17h 50m

Castries Hewanorra

Wed 4/3

5:25 p.m.-11:40 a.m.

2 stops19h 15m

C$ 656

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

8:50 a.m.-4:20 p.m.

2 stops54h 30m

Castries Hewanorra

Wed 4/3

5:25 p.m.-8:22 a.m.

1 stop15h 57m

C$ 656

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

3:45 p.m.-3:58 p.m.

2 stops47h 13m

Castries Hewanorra

Mon 9/3

3:58 p.m.-1:45 p.m.

2 stops45h 47m

C$ 669

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

3:45 p.m.-3:58 p.m.

2 stops23h 13m

Castries Hewanorra

Mon 9/3

3:58 p.m.-1:45 p.m.

2 stops45h 47m

C$ 669

TorontoCastries

YYZ - UVF

YYZUVF

Toronto Pearson Intl

Tue 24/2

8:30 a.m.-2:46 p.m.

Nonstop5h 16m

Castries Hewanorra

Tue 3/3

3:40 p.m.-8:38 p.m.

Nonstop5h 58m

C$ 686

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

4:50 p.m.-3:25 p.m.

2 stops46h 35m

Castries Hewanorra

Thu 26/3

4:15 p.m.-11:40 a.m.

2 stops19h 25m

C$ 699

MontrealCastries

YUL - UVF

YULUVF

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

10:30 p.m.-3:25 p.m.

1 stop16h 55m

Castries Hewanorra

Thu 26/3

4:15 p.m.-6:39 a.m.

2 stops14h 24m

C$ 699

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/1

Showing 1-10 of 44 results
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Best time to book a flight from Ontario to Castries

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

What is the cheapest month to book a flight from Region of Ontario to Castries?

Currently, June is the cheapest month in which you can book a flight from Region of Ontario to Castries (average of C$ 214). Flying from Region of Ontario to Castries in December is currently the most expensive (average of C$ 562). 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 ON to UVF?

Find hourly flight availability from Ontario to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 January 2026.

When flying from Region of Ontario to Castries, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Region of Ontario to Castries?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Castries. 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 Castries from Ontario?

    If you book a flight to Castries from Ontario, you will be flying to Hewanorra, which is the city’s only airport. Castries Hewanorra (UVF) is located 31.1 km from the centre of Castries.

  • How long is the flight from Region of Ontario to Castries?

    WestJet, American Airlines, and Air Canada can get you from Region of Ontario to Castries in just under 8h 06m. Your travel time can differ by up to 13h 42m. There are 3774 km between Region of Ontario and Castries. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Castries one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as C$ 168. However, be on the lookout for offers from WestJet and Air Canada, as they are both options that can get you from Region of Ontario to Castries for a low price.

  • What are the most popular routes from Region of Ontario to Castries?

    The most popular flight routes from Region of Ontario to Castries are Toronto Pearson Intl - Castries Hewanorra, Montreal Pierre Elliott Trudeau Intl - Castries Hewanorra and Ottawa - Castries Hewanorra.

  • What are the most reliable airlines from Region of Ontario to Castries?

    Before booking your flight to Castries from Region of Ontario, check out the most reliable airlines to get you to your destination on time: WestJet (77%), Air Canada (53%), Air Canada Rouge( 53%).

  • What are the cheapest flights from Region of Ontario to Castries?

    Looking at all options, your cheapest flight can be booked for C$ 262. While the most popular route (Toronto Pearson Intl - Castries Hewanorra) can be booked for C$ 547 on average, our data indicates C$ 633 when flying from Region of Ontario to Castries.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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.

  • What is the cheapest month to book a flight from Region of Ontario to Castries?

    Currently, June is the cheapest month in which you can book a flight from Region of Ontario to Castries (average of C$ 214). Flying from Region of Ontario to Castries in December is currently the most expensive (average of C$ 562). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Ontario to Castries

Discover the top 5 airlines that operate flights from Ontario to Castries. 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 190AverageC$ 515FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 215AverageC$ 557FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 425AverageC$ 709FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 442AverageC$ 863FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJet EncoreCheapestC$ 731AverageC$ 1,104FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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 Ontario to Castries?

Cheapflights helps you search for flights from Ontario to Castries via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Castries?

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 Castries from Ontario.

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

Yes, we can. To see specific flights from Ontario to Castries with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Ontario to Castries flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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