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Cheap flights from Ontario to Willemstad from $554

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 Willemstad departing on 12/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Willemstad

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:40 pm - 2:03 pm
ONT
-
CUR
12h 23m1 stop
American Airlines Logo
4:41 pm - 10:06 am
CUR
-
ONT
20h 25m2 stops
$724American Airlines
Tue, Mar 17 - Fri, Mar 27
American Airlines Logo
7:50 pm - 4:41 pm
ONT
-
CUR
16h 51m2 stops
American Airlines Logo
5:44 pm - 10:07 am
CUR
-
ONT
20h 23m2 stops
$749American Airlines
Fri, Feb 27 - Thu, Mar 5
American Airlines Logo
11:04 pm - 1:15 pm
ONT
-
CUR
11h 11m1 stop
American Airlines Logo
2:30 pm - 8:18 pm
CUR
-
ONT
32h 48m1 stop
$876American Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
6:00 am - 12:14 pm
ONT
-
CUR
26h 14m2 stops
United Airlines Logo
1:19 pm - 8:50 pm
CUR
-
ONT
35h 31m2 stops
$1,142United Airlines
Sun, Feb 15 - Sun, Feb 22
Avianca Logo
11:25 pm - 9:55 am
ONT
-
CUR
31h 30m2 stops
Avianca Logo
11:05 am - 9:55 pm
CUR
-
ONT
37h 50m2 stops
$1,167Avianca
Sat, Apr 18 - Wed, Apr 22
Delta Logo
10:29 pm - 2:57 pm
ONT
-
CUR
12h 28m1 stop
Delta Logo
4:22 pm - 10:00 am
CUR
-
ONT
21h 38m1 stop
$1,288Delta
Mon, Dec 29 - Wed, Dec 31
American Airlines Logo
3:19 pm - 4:41 pm
ONT
-
CUR
21h 22m2 stops
American Airlines Logo
5:44 pm - 9:29 pm
CUR
-
ONT
31h 45m2 stops
$1,300American Airlines
Tue, Mar 3 - Thu, Mar 5
American Airlines Logo
10:39 pm - 4:41 pm
ONT
-
CUR
14h 02m2 stops
American Airlines Logo
4:15 pm - 8:43 am
CUR
-
ONT
20h 28m2 stops
$1,324American Airlines
Fri, Feb 27 - Wed, Mar 4
United Airlines Logo
1:33 pm - 12:18 pm
ONT
-
CUR
43h 45m2 stops
United Airlines Logo
1:23 pm - 12:20 pm
CUR
-
ONT
25h 57m2 stops
$1,567United Airlines
Sat, Jun 6 - Tue, Jun 16
Avianca Logo
10:30 pm - 5:00 pm
ONT
-
CUR
14h 30m2 stops
Avianca Logo
12:35 pm - 8:55 pm
CUR
-
ONT
36h 20m2 stops
$1,607Avianca
Thu, Jan 15 - Mon, Jan 19

Avianca flights from Ontario to Willemstad

Our best Avianca deals on Ontario to Willemstad flight tickets
Avianca
Apr 18
ONT11:25 pmOntario
31h 30m
2 stops
CUR9:55 amWillemstad Hato Int.
Apr 22
CUR11:05 amWillemstad Hato Int.
37h 50m
2 stops
ONT9:55 pmOntario
$1,167
Find similar
Avianca
Jan 15
ONT10:30 pmOntario
14h 30m
2 stops
CUR5:00 pmWillemstad Hato Int.
Jan 19
CUR12:35 pmWillemstad Hato Int.
36h 20m
2 stops
ONT8:55 pmOntario
$1,607
Find similar
Avianca
Feb 26
ONT10:30 pmOntario
38h 30m
2 stops
CUR5:00 pmWillemstad Hato Int.
Mar 6
CUR6:15 pmWillemstad Hato Int.
30h 40m
2 stops
ONT8:55 pmOntario
$1,686
Find similar

United Airlines flights from Ontario to Willemstad

Our best United Airlines deals on Ontario to Willemstad flight tickets
United Airlines
Feb 15
ONT6:00 amOntario
26h 14m
2 stops
CUR12:14 pmWillemstad Hato Int.
Feb 22
CUR1:19 pmWillemstad Hato Int.
35h 31m
2 stops
ONT8:50 pmOntario
$1,142
Find similar
United Airlines
Jun 6
ONT1:33 pmOntario
43h 45m
2 stops
CUR12:18 pmWillemstad Hato Int.
Jun 16
CUR1:23 pmWillemstad Hato Int.
25h 57m
2 stops
ONT12:20 pmOntario
$1,567
Find similar
United Airlines
Mar 17
ONT6:00 amOntario
51h 11m
3 stops
CUR12:11 pmWillemstad Hato Int.
Mar 27
CUR1:19 pmWillemstad Hato Int.
36h 17m
2 stops
ONT10:36 pmOntario
$7,620
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Willemstad 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 December 9, 2025.
Use the filters below to find and compare flights from Ontario to Willemstad that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 3/17

10:40 pm-2:03 pm

1 stop12h 23m

Willemstad Hato Int.

Fri 3/27

4:41 pm-10:06 am

2 stops20h 25m

$724

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 2/27

7:50 pm-4:41 pm

2 stops16h 51m

Willemstad Hato Int.

Thu 3/5

5:44 pm-10:07 am

2 stops20h 23m

$749

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 4/11

11:04 pm-1:15 pm

1 stop11h 11m

Willemstad Hato Int.

Sat 4/18

2:30 pm-8:18 pm

1 stop32h 48m

$876

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sun 2/15

6:00 am-12:14 pm

2 stops26h 14m

Willemstad Hato Int.

Sun 2/22

1:19 pm-8:50 pm

2 stops35h 31m

$1,142

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 4/18

11:25 pm-9:55 am

2 stops31h 30m

Willemstad Hato Int.

Wed 4/22

11:05 am-9:55 pm

2 stops37h 50m

$1,167

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Mon 12/29

10:29 pm-2:57 pm

1 stop12h 28m

Willemstad Hato Int.

Wed 12/31

4:22 pm-10:00 am

1 stop21h 38m

$1,288

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 3/3

3:19 pm-4:41 pm

2 stops21h 22m

Willemstad Hato Int.

Thu 3/5

5:44 pm-9:29 pm

2 stops31h 45m

$1,300

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 2/27

10:39 pm-4:41 pm

2 stops14h 02m

Willemstad Hato Int.

Wed 3/4

4:15 pm-8:43 am

2 stops20h 28m

$1,324

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 6/6

1:33 pm-12:18 pm

2 stops43h 45m

Willemstad Hato Int.

Tue 6/16

1:23 pm-12:20 pm

2 stops25h 57m

$1,567

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Thu 1/15

10:30 pm-5:00 pm

2 stops14h 30m

Willemstad Hato Int.

Mon 1/19

12:35 pm-8:55 pm

2 stops36h 20m

$1,607

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 Willemstad from

How to get the cheapest flight ticket from Ontario to Willemstad

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 day to depart on your flight to Willemstad?

The cheapest day to depart on your flight to Willemstad is on a Tuesday when prices can be found for as low as $530. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $848. These prices are subject to change though, so be sure to set up a Price Alert for flights to Willemstad.

What is the cheapest time of day to depart on your flight to Willemstad?

According to our data, the cheapest time of day to fly to Willemstad is at noon. momondo users have found flights departing from Ontario to Willemstad at noon for as low as $478. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $629.

When to book flights from Ontario to Willemstad

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

Cheap Ontario to Willemstad (ONT to CUR) flight deals and tips

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

Fastest flight time

11h 19m

Direct flights

None
The fastest flight from Ontario to Willemstad takes 11h 19m
There are no direct flights from Ontario to Willemstad. There are no popular flight routes from Ontario to Willemstad.
Search flight deals

  • How far is Ontario to Willemstad Hato Int. by plane?

    Ontario and Willemstad Hato Int. are 3407.4 mi apart from one another. Typically, this will take 11h 11m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Willemstad Hato Int. Airport?

    Prices for flights from Ontario Airport to Willemstad Hato Int. Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Willemstad Hato Int. Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Willemstad Hato Int. Airport.

  • What documentation or ID do you need to fly to Willemstad Hato Int. Airport?

    The travel and health documents required for your trip to Willemstad Hato Int. Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Willemstad Hato Int. Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Ontario to Willemstad flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Willemstad that suits you.

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

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

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

momondo helps you find the best flight between Ontario and Willemstad by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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