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Cheap flights from Ontario to Saint Croix from $348

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 Croix departing on 6/8. 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
0 bags

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Find the cheapest flights from Ontario to Saint Croix

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:59 pm - 12:56 pm
ONT
-
STX
13h 57m
2 stops
American Airlines Logo
2:05 pm - 11:34 am
STX
-
ONT
24h 29m
2 stops
$760American Airlines
Sat, Apr 4 - Wed, Apr 8
American Airlines Logo
2:08 pm - 1:15 pm
ONT
-
STX
20h 07m
2 stops
American Airlines Logo
5:14 pm - 10:05 am
STX
-
ONT
19h 51m
2 stops
$835American Airlines
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
7:00 am - 5:15 pm
ONT
-
STX
31h 15m
2 stops
United Airlines Logo
10:20 am - 10:31 pm
STX
-
ONT
15h 11m
2 stops
$1,200United Airlines
Thu, Apr 23 - Tue, Apr 28
American Airlines Logo
10:26 pm - 4:13 pm
ONT
-
STX
14h 47m
3 stops
American Airlines Logo
2:05 pm - 11:46 pm
STX
-
ONT
12h 41m
2 stops
$1,427American Airlines
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
United Airlines Logo
9:59 am - 9:55 pm
STX
-
ONT
14h 56m
2 stops
$1,643United Airlines
Thu, Jul 2 - Tue, Jul 7
United Airlines Logo
5:45 am - 12:30 pm
ONT
-
STX
27h 45m
2 stops
United Airlines Logo
9:59 am - 9:55 pm
STX
-
ONT
14h 56m
2 stops
$1,804United Airlines
Thu, Jul 2 - Tue, Jul 7
United Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
United Airlines Logo
10:25 am - 8:42 pm
STX
-
ONT
13h 17m
2 stops
$1,824United Airlines
Thu, Jul 2 - Thu, Jul 9
United Airlines Logo
5:00 am - 8:55 am
ONT
-
STX
24h 55m
2 stops
United Airlines Logo
9:59 am - 9:55 pm
STX
-
ONT
14h 56m
2 stops
$2,167United Airlines
Mon, May 18 - Fri, May 29
United Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
United Airlines Logo
10:25 am - 8:42 pm
STX
-
ONT
13h 17m
2 stops
$2,257United Airlines
Fri, Jul 3 - Thu, Jul 9
United Airlines Logo
7:00 am - 8:55 am
ONT
-
STX
22h 55m
2 stops
United Airlines Logo
8:30 am - 8:36 pm
STX
-
ONT
15h 06m
2 stops
$2,434United Airlines
Wed, Apr 8 - Sun, Apr 12

American Airlines flights from Ontario to Saint Croix

Our best American Airlines deals on Ontario to Saint Croix flight tickets
American Airlines
Apr 4
ONT7:59 pmOntario
13h 57m
2 stops
STX12:56 pmChristiansted Henry Rohlsen
Apr 8
STX2:05 pmChristiansted Henry Rohlsen
24h 29m
2 stops
ONT11:34 amOntario
$760
American Airlines
Apr 7
ONT2:08 pmOntario
20h 07m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
Apr 11
STX5:14 pmChristiansted Henry Rohlsen
19h 51m
2 stops
ONT10:05 amOntario
$835
American Airlines
Apr 7
ONT10:26 pmOntario
14h 47m
3 stops
STX4:13 pmChristiansted Henry Rohlsen
Apr 11
STX2:05 pmChristiansted Henry Rohlsen
12h 41m
2 stops
ONT11:46 pmOntario
$1,427

United Airlines flights from Ontario to Saint Croix

Our best United Airlines deals on Ontario to Saint Croix flight tickets
United Airlines
Apr 23
ONT7:00 amOntario
31h 15m
2 stops
STX5:15 pmChristiansted Henry Rohlsen
Apr 28
STX10:20 amChristiansted Henry Rohlsen
15h 11m
2 stops
ONT10:31 pmOntario
$1,200
United Airlines
Jul 2
ONT5:00 amOntario
11h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Jul 7
STX9:59 amChristiansted Henry Rohlsen
14h 56m
2 stops
ONT9:55 pmOntario
$1,643
United Airlines
Mar 27
ONT11:59 pmOntario
13h 59m
2 stops
STX4:58 pmChristiansted Henry Rohlsen
Mar 29
STX9:25 amChristiansted Henry Rohlsen
16h 01m
2 stops
ONT10:26 pmOntario
$1,712

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Saint Croix 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 March 24, 2026.
Use the filters below to find and compare flights from Ontario to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 4/4

7:59 pm-12:56 pm

2 stops13h 57m

Christiansted Henry Rohlsen

Wed 4/8

2:05 pm-11:34 am

2 stops24h 29m

$760

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 4/7

2:08 pm-1:15 pm

2 stops20h 07m

Christiansted Henry Rohlsen

Sat 4/11

5:14 pm-10:05 am

2 stops19h 51m

$835

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 4/23

7:00 am-5:15 pm

2 stops31h 15m

Christiansted Henry Rohlsen

Tue 4/28

10:20 am-10:31 pm

2 stops15h 11m

$1,200

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 4/7

10:26 pm-4:13 pm

3 stops14h 47m

Christiansted Henry Rohlsen

Sat 4/11

2:05 pm-11:46 pm

2 stops12h 41m

$1,427

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 7/2

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Tue 7/7

9:59 am-9:55 pm

2 stops14h 56m

$1,643

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 7/2

5:45 am-12:30 pm

2 stops27h 45m

Christiansted Henry Rohlsen

Tue 7/7

9:59 am-9:55 pm

2 stops14h 56m

$1,804
Quickest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 7/2

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Thu 7/9

10:25 am-8:42 pm

2 stops13h 17m

$1,824

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Mon 5/18

5:00 am-8:55 am

2 stops24h 55m

Christiansted Henry Rohlsen

Fri 5/29

9:59 am-9:55 pm

2 stops14h 56m

$2,167

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Fri 7/3

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Thu 7/9

10:25 am-8:42 pm

2 stops13h 17m

$2,257

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Wed 4/8

7:00 am-8:55 am

2 stops22h 55m

Christiansted Henry Rohlsen

Sun 4/12

8:30 am-8:36 pm

2 stops15h 06m

$2,434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Saint Croix from

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

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 Croix?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Ontario to Saint Croix

Cheap Ontario to Saint Croix flight deals and tips

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

Fastest flight time

13h 59m

Direct flights

None
The fastest flight from Ontario to Saint Croix takes 13h 59m
There are no direct flights from Ontario to Saint Croix. There are no popular flight routes from Ontario to Saint Croix.
Search flight deals

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Saint Croix.

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

    The travel and health documents you'll need for your trip to Saint Croix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Croix. It is always advisable to seek 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 Croix?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Saint Croix. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Saint Croix from Ontario with this policy.

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

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 Croix from Ontario.

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

If you are not ready to book a flight from Ontario to Saint Croix now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Croix and let you know when they change.

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