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Cheap flights from Ontario to Saint Lucia from $258

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Saint Lucia departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to Saint Lucia

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
10:41 pm - 3:35 pm
ONT
-
UVF
13h 54m
1 stop
JetBlue Logo
2:10 pm - 8:47 pm
UVF
-
ONT
33h 37m
1 stop
$575JetBlue
Tue, May 26 - Thu, Jun 4
JetBlue Logo
10:41 pm - 3:35 pm
ONT
-
UVF
13h 54m
1 stop
JetBlue Logo
4:55 pm - 8:47 pm
UVF
-
ONT
30h 52m
1 stop
$610JetBlue
Sat, May 23 - Thu, May 28
JetBlue Logo
10:41 pm - 12:50 pm
ONT
-
UVF
11h 09m
1 stop
JetBlue Logo
1:50 pm - 10:01 pm
UVF
-
ONT
35h 11m
1 stop
$627JetBlue
Mon, Jun 1 - Fri, Jun 12
JetBlue Logo
9:10 pm - 3:03 pm
ONT
-
UVF
14h 53m
1 stop
JetBlue Logo
4:25 pm - 8:13 pm
UVF
-
ONT
30h 48m
1 stop
$654JetBlue
Fri, Sep 25 - Wed, Sep 30
JetBlue Logo
10:41 pm - 3:40 pm
ONT
-
UVF
13h 59m
1 stop
JetBlue Logo
2:10 pm - 8:47 pm
UVF
-
ONT
33h 37m
1 stop
$659JetBlue
Sat, May 30 - Thu, Jun 4
JetBlue Logo
9:10 pm - 3:20 pm
ONT
-
UVF
15h 10m
1 stop
JetBlue Logo
4:25 pm - 10:09 pm
UVF
-
ONT
32h 44m
1 stop
$680JetBlue
Sat, Oct 3 - Thu, Oct 8
JetBlue Logo
10:41 pm - 12:50 pm
ONT
-
UVF
11h 09m
1 stop
JetBlue Logo
1:50 pm - 10:01 pm
UVF
-
ONT
35h 11m
1 stop
$689JetBlue
Sun, May 31 - Fri, Jun 12
JetBlue Logo
10:41 pm - 3:35 pm
ONT
-
UVF
13h 54m
1 stop
JetBlue Logo
5:00 pm - 8:47 pm
UVF
-
ONT
30h 47m
1 stop
$691JetBlue
Tue, May 26 - Sun, May 31
JetBlue Logo
10:41 pm - 3:35 pm
ONT
-
UVF
13h 54m
1 stop
JetBlue Logo
2:10 pm - 8:47 pm
UVF
-
ONT
33h 37m
1 stop
$705JetBlue
Thu, May 28 - Tue, Jun 2
JetBlue Logo
10:41 pm - 3:35 pm
ONT
-
UVF
13h 54m
1 stop
JetBlue Logo
4:55 pm - 8:47 pm
UVF
-
ONT
30h 52m
1 stop
$714JetBlue
Sun, May 31 - Fri, Jun 5

Delta flights from Ontario to Saint Lucia

Our best Delta deals on Ontario to Saint Lucia flight tickets
Delta
Apr 28
ONT1:29 pmOntario
21h 33m
2 stops
UVF2:02 pmCastries Hewanorra
May 7
UVF3:25 pmCastries Hewanorra
27h 52m
2 stops
ONT4:17 pmOntario
$898
Delta
Apr 27
ONT10:15 pmOntario
12h 47m
1 stop
UVF2:02 pmCastries Hewanorra
May 7
UVF3:25 pmCastries Hewanorra
27h 52m
2 stops
ONT4:17 pmOntario
$943
Delta
May 2
ONT1:29 pmOntario
21h 33m
2 stops
UVF2:02 pmCastries Hewanorra
May 7
UVF3:25 pmCastries Hewanorra
27h 52m
2 stops
ONT4:17 pmOntario
$963

JetBlue flights from Ontario to Saint Lucia

Our best JetBlue deals on Ontario to Saint Lucia flight tickets
JetBlue
May 26
ONT10:41 pmOntario
13h 54m
1 stop
UVF3:35 pmCastries Hewanorra
Jun 4
UVF2:10 pmCastries Hewanorra
33h 37m
1 stop
ONT8:47 pmOntario
$575
JetBlue
May 23
ONT10:41 pmOntario
13h 54m
1 stop
UVF3:35 pmCastries Hewanorra
May 28
UVF4:55 pmCastries Hewanorra
30h 52m
1 stop
ONT8:47 pmOntario
$610
JetBlue
Jun 1
ONT10:41 pmOntario
11h 09m
1 stop
UVF12:50 pmCastries Hewanorra
Jun 12
UVF1:50 pmCastries Hewanorra
35h 11m
1 stop
ONT10:01 pmOntario
$627

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Saint Lucia 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, momondo users made 832,500 searches. Data last updated April 8, 2026.
Use the filters below to find and compare flights from Ontario to Saint Lucia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Tue 5/26

10:41 pm-3:35 pm

1 stop13h 54m

Castries Hewanorra

Thu 6/4

2:10 pm-8:47 pm

1 stop33h 37m

$575

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Sat 5/23

10:41 pm-3:35 pm

1 stop13h 54m

Castries Hewanorra

Thu 5/28

4:55 pm-8:47 pm

1 stop30h 52m

$610

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Mon 6/1

10:41 pm-12:50 pm

1 stop11h 09m

Castries Hewanorra

Fri 6/12

1:50 pm-10:01 pm

1 stop35h 11m

$627

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Fri 9/25

9:10 pm-3:03 pm

1 stop14h 53m

Castries Hewanorra

Wed 9/30

4:25 pm-8:13 pm

1 stop30h 48m

$654

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Sat 5/30

10:41 pm-3:40 pm

1 stop13h 59m

Castries Hewanorra

Thu 6/4

2:10 pm-8:47 pm

1 stop33h 37m

$659

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Sat 10/3

9:10 pm-3:20 pm

1 stop15h 10m

Castries Hewanorra

Thu 10/8

4:25 pm-10:09 pm

1 stop32h 44m

$680

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Sun 5/31

10:41 pm-12:50 pm

1 stop11h 09m

Castries Hewanorra

Fri 6/12

1:50 pm-10:01 pm

1 stop35h 11m

$689
Quickest round-trip

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Tue 5/26

10:41 pm-3:35 pm

1 stop13h 54m

Castries Hewanorra

Sun 5/31

5:00 pm-8:47 pm

1 stop30h 47m

$691

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Thu 5/28

10:41 pm-3:35 pm

1 stop13h 54m

Castries Hewanorra

Tue 6/2

2:10 pm-8:47 pm

1 stop33h 37m

$705

OntarioCastries

ONT - UVF

ONTUVF

Ontario

Sun 5/31

10:41 pm-3:35 pm

1 stop13h 54m

Castries Hewanorra

Fri 6/5

4:55 pm-8:47 pm

1 stop30h 52m

$714

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Ontario to Saint Lucia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Saint Lucia?

United Airlines and JetBlue are the most popular carriers operating from Ontario to Saint Lucia

What airlines fly to Saint Lucia?

American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Saint Lucia from Ontario according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Saint Lucia. Keep in mind that there are 4 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

Cheap Ontario to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Saint Lucia

Fastest flight time

11h 09m

Direct flights

None
The fastest flight from Ontario to Saint Lucia takes 11h 09m
There are no direct flights from Ontario to Saint Lucia. There are no popular flight routes from Ontario to Saint Lucia.
Search flight deals

Frequently asked questions about flying from Ontario to Saint Lucia

  • When did momondo last update prices for flights from Ontario Airport to Saint Lucia?

    Prices for flights from Ontario Airport to Saint Lucia are updated daily.

  • How old do you have to be to fly from Ontario Airport to Saint Lucia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Saint Lucia.

  • What documentation or ID do you need to fly to Saint Lucia?

    The necessary travel and health documents for your Saint Lucia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Saint Lucia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Lucia from Ontario.

Can I find flights from Ontario to Saint Lucia with flexible booking policies on momondo?

All flight searches from Ontario to Saint Lucia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Saint Lucia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Saint Lucia from Ontario.

I’m not ready to book a flight from Ontario to Saint Lucia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Saint Lucia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Saint Lucia

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