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Cheap flights from Ontario to Saint Croix from $673

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 7/10. 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

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
11:59 pm - 8:50 pm
ONT
-
STX
17h 51m
2 stops
American Airlines Logo
3:50 pm - 9:29 am
STX
-
ONT
20h 39m
2 stops
$930American Airlines
Sat, Jul 11 - Mon, Jul 20
Multiple Airlines Logo
7:00 am - 8:20 am
ONT
-
STX
46h 20m
2 stops
Multiple Airlines Logo
4:55 pm - 8:58 pm
STX
-
ONT
31h 03m
2 stops
$988Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
1:18 pm - 8:20 am
ONT
-
STX
40h 02m
2 stops
Multiple Airlines Logo
9:10 am - 9:59 pm
STX
-
ONT
15h 49m
2 stops
$1,046Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
11:59 pm - 3:47 pm
ONT
-
STX
12h 48m
2 stops
Multiple Airlines Logo
9:10 am - 10:38 pm
STX
-
ONT
16h 28m
2 stops
$1,127Multiple Airlines
Sun, Aug 9 - Fri, Aug 14
Multiple Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
Multiple Airlines Logo
10:25 am - 8:58 pm
STX
-
ONT
13h 33m
2 stops
$1,245Multiple Airlines
Sat, Oct 3 - Sat, Oct 10
Multiple Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
Multiple Airlines Logo
10:25 am - 8:58 pm
STX
-
ONT
13h 33m
2 stops
$1,386Multiple Airlines
Sat, Oct 10 - Sat, Oct 17
United Airlines Logo
5:00 am - 7:38 pm
ONT
-
STX
11h 38m
2 stops
United Airlines Logo
10:25 am - 8:58 pm
STX
-
ONT
13h 33m
2 stops
$1,528United Airlines
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
6:00 am - 7:38 pm
ONT
-
STX
34h 38m
2 stops
United Airlines Logo
3:14 pm - 8:58 pm
STX
-
ONT
32h 44m
2 stops
$1,688United Airlines
Tue, Sep 22 - Thu, Sep 24
United Airlines Logo
6:00 am - 7:38 pm
ONT
-
STX
34h 38m
2 stops
United Airlines Logo
3:14 pm - 8:58 pm
STX
-
ONT
32h 44m
2 stops
$1,699United Airlines
Tue, Sep 22 - Thu, Sep 24
United Airlines Logo
8:03 am - 7:38 pm
ONT
-
STX
32h 35m
3 stops
United Airlines Logo
9:59 am - 9:59 pm
STX
-
ONT
15h 00m
2 stops
$1,770United Airlines
Sat, Oct 3 - Sat, Oct 10

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United Airlines flights from Ontario to Saint Croix

Our best United Airlines deals on Ontario to Saint Croix flight tickets
United Airlines
Sep 25
ONT5:00 amOntario
11h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Sep 28
STX10:25 amChristiansted Henry Rohlsen
13h 33m
2 stops
ONT8:58 pmOntario
$1,528
United Airlines
Sep 22
ONT6:00 amOntario
34h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Sep 24
STX3:14 pmChristiansted Henry Rohlsen
32h 44m
2 stops
ONT8:58 pmOntario
$1,688
United Airlines
Sep 22
ONT6:00 amOntario
34h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Sep 24
STX3:14 pmChristiansted Henry Rohlsen
32h 44m
2 stops
ONT8:58 pmOntario
$1,699

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 June 23, 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 7/11

11:59 pm-8:50 pm

2 stops17h 51m

Christiansted Henry Rohlsen

Mon 7/20

3:50 pm-9:29 am

2 stops20h 39m

$930

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 9/22

7:00 am-8:20 am

2 stops46h 20m

Christiansted Henry Rohlsen

Tue 9/29

4:55 pm-8:58 pm

2 stops31h 03m

$988

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Wed 9/23

1:18 pm-8:20 am

2 stops40h 02m

Christiansted Henry Rohlsen

Wed 9/30

9:10 am-9:59 pm

2 stops15h 49m

$1,046

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sun 8/9

11:59 pm-3:47 pm

2 stops12h 48m

Christiansted Henry Rohlsen

Fri 8/14

9:10 am-10:38 pm

2 stops16h 28m

$1,127
Quickest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 10/3

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Sat 10/10

10:25 am-8:58 pm

2 stops13h 33m

$1,245

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 10/10

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Sat 10/17

10:25 am-8:58 pm

2 stops13h 33m

$1,386

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Fri 9/25

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Mon 9/28

10:25 am-8:58 pm

2 stops13h 33m

$1,528

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 9/22

6:00 am-7:38 pm

2 stops34h 38m

Christiansted Henry Rohlsen

Thu 9/24

3:14 pm-8:58 pm

2 stops32h 44m

$1,688

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 9/22

6:00 am-7:38 pm

2 stops34h 38m

Christiansted Henry Rohlsen

Thu 9/24

3:14 pm-8:58 pm

2 stops32h 44m

$1,699

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 10/3

8:03 am-7:38 pm

3 stops32h 35m

Christiansted Henry Rohlsen

Sat 10/10

9:59 am-9:59 pm

2 stops15h 00m

$1,770

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

United Airlines is the most popular carrier 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

11h 38m

Direct flights

None
The fastest flight from Ontario to Saint Croix takes 11h 38m
There are no direct flights from Ontario to Saint Croix. There are no popular flight routes from Ontario to Saint Croix.
Search flight deals

Frequently asked questions about flying from Ontario to Saint Croix

  • 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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