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Cheap flights from Ontario to Christiansted from $421

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 Christiansted departing on 10/31. 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 Christiansted

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:27 pm - 9:29 pm
ONT
-
STX
28h 02m
2 stops
American Airlines Logo
8:11 am - 6:58 pm
STX
-
ONT
13h 47m
2 stops
$795American Airlines
Tue, Aug 11 - Sat, Aug 15
Multiple Airlines Logo
5:00 am - 4:15 pm
ONT
-
STX
32h 15m
2 stops
Multiple Airlines Logo
9:10 am - 8:51 pm
STX
-
ONT
15h 41m
2 stops
$851Multiple Airlines
Wed, Oct 21 - Wed, Nov 11
Multiple Airlines Logo
5:00 am - 8:20 am
ONT
-
STX
24h 20m
2 stops
Multiple Airlines Logo
4:55 pm - 8:58 pm
STX
-
ONT
31h 03m
2 stops
$932Multiple Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
6:00 am - 9:29 pm
ONT
-
STX
12h 29m
2 stops
American Airlines Logo
8:11 am - 10:59 pm
STX
-
ONT
17h 48m
3 stops
$1,013American Airlines
Tue, Aug 11 - Sat, Aug 15
Multiple Airlines Logo
11:59 pm - 7:38 pm
ONT
-
STX
16h 39m
2 stops
Multiple Airlines Logo
9:10 am - 10:44 pm
STX
-
ONT
16h 34m
2 stops
$1,124Multiple Airlines
Tue, Sep 1 - Sun, Sep 6
United Airlines Logo
6:45 am - 12:30 pm
ONT
-
STX
25h 45m
2 stops
United Airlines Logo
3:14 pm - 6:44 pm
STX
-
ONT
31h 30m
2 stops
$1,797United Airlines
Sun, Jan 17 - Wed, Jan 27

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American Airlines flights from Ontario to Christiansted

Our best American Airlines deals on Ontario to Christiansted flight tickets
American Airlines
Aug 11
ONT2:27 pmOntario
28h 02m
2 stops
STX9:29 pmChristiansted Henry Rohlsen
Aug 15
STX8:11 amChristiansted Henry Rohlsen
13h 47m
2 stops
ONT6:58 pmOntario
$795
American Airlines
Aug 11
ONT6:00 amOntario
12h 29m
2 stops
STX9:29 pmChristiansted Henry Rohlsen
Aug 15
STX8:11 amChristiansted Henry Rohlsen
17h 48m
3 stops
ONT10:59 pmOntario
$1,013

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Christiansted 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 July 31, 2026.
Use the filters below to find and compare flights from Ontario to Christiansted that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 8/11

2:27 pm-9:29 pm

2 stops28h 02m

Christiansted Henry Rohlsen

Sat 8/15

8:11 am-6:58 pm

2 stops13h 47m

$795

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Wed 10/21

5:00 am-4:15 pm

2 stops32h 15m

Christiansted Henry Rohlsen

Wed 11/11

9:10 am-8:51 pm

2 stops15h 41m

$851

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 9/24

5:00 am-8:20 am

2 stops24h 20m

Christiansted Henry Rohlsen

Tue 9/29

4:55 pm-8:58 pm

2 stops31h 03m

$932
Quickest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 8/11

6:00 am-9:29 pm

2 stops12h 29m

Christiansted Henry Rohlsen

Sat 8/15

8:11 am-10:59 pm

3 stops17h 48m

$1,013

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 9/1

11:59 pm-7:38 pm

2 stops16h 39m

Christiansted Henry Rohlsen

Sun 9/6

9:10 am-10:44 pm

2 stops16h 34m

$1,124

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sun 1/17

6:45 am-12:30 pm

2 stops25h 45m

Christiansted Henry Rohlsen

Wed 1/27

3:14 pm-6:44 pm

2 stops31h 30m

$1,797
Cheapest one-way
Quickest one-way

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 10/31

5:00 am-7:38 pm

2 stops11h 38m

$421

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 10/31

5:00 am-7:38 pm

2 stops11h 38m

$422

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Mon 8/10

5:45 am-4:15 pm

2 stops31h 30m

$515

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Thu 8/6

5:00 am-8:20 am

2 stops24h 20m

$575

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Christiansted from

How to get the cheapest flight ticket from Ontario to Christiansted

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 airlines fly to Christiansted?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Christiansted from Ontario according to our data. American Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Christiansted. Keep in mind that there are 4 different airlines that fly to Christiansted on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Christiansted

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Christiansted according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Christiansted (ONT to STX) flight deals and tips

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

Fastest flight time

16h 39m

Direct flights

None
The fastest flight from Ontario to Christiansted takes 16h 39m
There are no direct flights from Ontario to Christiansted. There are no popular flight routes from Ontario to Christiansted.
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Frequently asked questions about flying from Ontario to Christiansted

  • How far is Ontario to Christiansted Henry Rohlsen by plane?

    There are 3434.9 mi between Ontario and Christiansted Henry Rohlsen. Flights usually cover this in 16h 39m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Christiansted Henry Rohlsen Airport?

    Prices for flights from Ontario Airport to Christiansted Henry Rohlsen Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Christiansted Henry Rohlsen Airport?

    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 Christiansted Henry Rohlsen Airport.

  • What documentation or ID do you need to fly to Christiansted Henry Rohlsen Airport?

    The necessary travel and health documents for your Christiansted Henry Rohlsen Airport 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.

Traveling to a place near Christiansted?

Book flights to Christiansted if you plan to visit one of these locations
Frederiksted

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Christiansted. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Christiansted from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Christiansted?

momondo provides multiple filters to help you find the best flight to Christiansted from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Christiansted, momondo offers a useful price alert feature which will track prices for flights to Christiansted from Ontario and alert you when they change.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
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