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Cheap flights from Ontario to Christiansted from $438

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 3/24. 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 Christiansted

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:14 pm - 9:10 pm
ONT
-
STX
22h 56m
2 stops
American Airlines Logo
3:50 pm - 12:03 pm
STX
-
ONT
23h 13m
2 stops
$685American Airlines
Wed, Jul 8 - Wed, Jul 15
American Airlines Logo
12:22 pm - 12:56 pm
ONT
-
STX
21h 34m
2 stops
American Airlines Logo
5:32 pm - 8:51 am
STX
-
ONT
18h 19m
2 stops
$855American Airlines
Tue, Mar 24 - Sat, Mar 28
American Airlines Logo
11:58 pm - 4:27 pm
ONT
-
STX
13h 29m
2 stops
American Airlines Logo
1:50 pm - 8:51 am
STX
-
ONT
22h 01m
2 stops
$876American Airlines
Sun, Mar 29 - Thu, Apr 2
American Airlines Logo
10:36 pm - 2:48 pm
ONT
-
STX
13h 12m
1 stop
American Airlines Logo
5:32 pm - 8:51 am
STX
-
ONT
18h 19m
2 stops
$895American Airlines
Tue, Mar 24 - Sat, Mar 28
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
7:00 am - 8:55 am
ONT
-
STX
22h 55m
2 stops
United Airlines Logo
10:20 am - 9:58 pm
STX
-
ONT
14h 38m
2 stops
$1,804United Airlines
Sun, May 10 - Thu, May 14
United Airlines Logo
6:30 am - 8:55 am
ONT
-
STX
23h 25m
2 stops
United Airlines Logo
3:14 pm - 8:42 pm
STX
-
ONT
32h 28m
2 stops
$1,862United Airlines
Sat, May 23 - Sat, May 30
United Airlines Logo
6:00 am - 8:55 am
ONT
-
STX
23h 55m
2 stops
United Airlines Logo
9:59 am - 9:55 pm
STX
-
ONT
14h 56m
2 stops
$1,986United Airlines
Mon, May 18 - Fri, May 29
United Airlines Logo
11:59 pm - 8:55 am
ONT
-
STX
29h 56m
2 stops
United Airlines Logo
10:20 am - 10:26 pm
STX
-
ONT
15h 06m
2 stops
$2,115United Airlines
Wed, Mar 25 - Mon, Mar 30
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
$2,416United Airlines
Tue, Jun 23 - Tue, Jun 30

United Airlines flights from Ontario to Christiansted

Our best United Airlines deals on Ontario to Christiansted flight tickets
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
May 10
ONT7:00 amOntario
22h 55m
2 stops
STX8:55 amChristiansted Henry Rohlsen
May 14
STX10:20 amChristiansted Henry Rohlsen
14h 38m
2 stops
ONT9:58 pmOntario
$1,804
United Airlines
May 23
ONT6:30 amOntario
23h 25m
2 stops
STX8:55 amChristiansted Henry Rohlsen
May 30
STX3:14 pmChristiansted Henry Rohlsen
32h 28m
2 stops
ONT8:42 pmOntario
$1,862

American Airlines flights from Ontario to Christiansted

Our best American Airlines deals on Ontario to Christiansted flight tickets
American Airlines
Jul 8
ONT7:14 pmOntario
22h 56m
2 stops
STX9:10 pmChristiansted Henry Rohlsen
Jul 15
STX3:50 pmChristiansted Henry Rohlsen
23h 13m
2 stops
ONT12:03 pmOntario
$685
American Airlines
Mar 24
ONT12:22 pmOntario
21h 34m
2 stops
STX12:56 pmChristiansted Henry Rohlsen
Mar 28
STX5:32 pmChristiansted Henry Rohlsen
18h 19m
2 stops
ONT8:51 amOntario
$855
American Airlines
Mar 29
ONT11:58 pmOntario
13h 29m
2 stops
STX4:27 pmChristiansted Henry Rohlsen
Apr 2
STX1:50 pmChristiansted Henry Rohlsen
22h 01m
2 stops
ONT8:51 amOntario
$876

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 March 14, 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

Wed 7/8

7:14 pm-9:10 pm

2 stops22h 56m

Christiansted Henry Rohlsen

Wed 7/15

3:50 pm-12:03 pm

2 stops23h 13m

$685

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 3/24

12:22 pm-12:56 pm

2 stops21h 34m

Christiansted Henry Rohlsen

Sat 3/28

5:32 pm-8:51 am

2 stops18h 19m

$855

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sun 3/29

11:58 pm-4:27 pm

2 stops13h 29m

Christiansted Henry Rohlsen

Thu 4/2

1:50 pm-8:51 am

2 stops22h 01m

$876

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 3/24

10:36 pm-2:48 pm

1 stop13h 12m

Christiansted Henry Rohlsen

Sat 3/28

5:32 pm-8:51 am

2 stops18h 19m

$895
Quickest round-trip

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

Sun 5/10

7:00 am-8:55 am

2 stops22h 55m

Christiansted Henry Rohlsen

Thu 5/14

10:20 am-9:58 pm

2 stops14h 38m

$1,804

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Sat 5/23

6:30 am-8:55 am

2 stops23h 25m

Christiansted Henry Rohlsen

Sat 5/30

3:14 pm-8:42 pm

2 stops32h 28m

$1,862

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Mon 5/18

6:00 am-8:55 am

2 stops23h 55m

Christiansted Henry Rohlsen

Fri 5/29

9:59 am-9:55 pm

2 stops14h 56m

$1,986

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Wed 3/25

11:59 pm-8:55 am

2 stops29h 56m

Christiansted Henry Rohlsen

Mon 3/30

10:20 am-10:26 pm

2 stops15h 06m

$2,115

OntarioChristiansted

ONT - STX

ONTSTX

Ontario

Tue 6/23

5:00 am-7:38 pm

2 stops11h 38m

Christiansted Henry Rohlsen

Tue 6/30

9:59 am-9:55 pm

2 stops14h 56m

$2,416

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 is the cheapest airline that flies from Ontario to Christiansted Henry Rohlsen?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Ontario to Christiansted Henry Rohlsen

What airlines fly to Christiansted?

American Airlines, Delta and Spirit Airlines 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 58% 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

11h 38m

Direct flights

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

  • 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 11h 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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Fly your favorite airline to Christiansted

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
American Airlines
Delta
Spirit Airlines
United Airlines