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Cheap flights from Ontario to Christiansted from $1,693

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Christiansted departing on 9/22. 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.
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
$1,693United 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
Multiple Airlines Logo
5:45 am - 12:30 pm
ONT
-
STX
27h 45m
2 stops
Multiple Airlines Logo
9:10 am - 8:42 pm
STX
-
ONT
14h 32m
2 stops
$1,963Multiple Airlines
Fri, Jul 3 - Tue, Jul 7
Multiple Airlines Logo
1:50 pm - 5:10 pm
ONT
-
STX
24h 20m
3 stops
Multiple Airlines Logo
9:10 am - 9:55 pm
STX
-
ONT
15h 45m
2 stops
$1,969Multiple Airlines
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
6:00 am - 7:38 pm
ONT
-
STX
34h 38m
2 stops
United Airlines Logo
10:25 am - 9:59 pm
STX
-
ONT
14h 34m
2 stops
$2,037United Airlines
Mon, Aug 17 - Thu, Aug 20

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United Airlines flights from Ontario to Christiansted

Our best United Airlines deals on Ontario to Christiansted flight tickets
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
$1,693
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
United Airlines
Aug 17
ONT6:00 amOntario
34h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Aug 20
STX10:25 amChristiansted Henry Rohlsen
14h 34m
2 stops
ONT9:59 pmOntario
$2,037

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 June 13, 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 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

$1,693

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

Fri 7/3

5:45 am-12:30 pm

2 stops27h 45m

Christiansted Henry Rohlsen

Tue 7/7

9:10 am-8:42 pm

2 stops14h 32m

$1,963
Quickest round-trip

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Fri 7/3

1:50 pm-5:10 pm

3 stops24h 20m

Christiansted Henry Rohlsen

Tue 7/7

9:10 am-9:55 pm

2 stops15h 45m

$1,969

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Mon 8/17

6:00 am-7:38 pm

2 stops34h 38m

Christiansted Henry Rohlsen

Thu 8/20

10:25 am-9:59 pm

2 stops14h 34m

$2,037

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

34h 38m

Direct flights

None
The fastest flight from Ontario to Christiansted takes 34h 38m
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 34h 38m, 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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