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Cheap flights from Ontario to Willemstad from $424

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 1/9. 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 Willemstad

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:04 pm - 1:15 pmONT-CUR
11h 11m1 stop
American Airlines Logo
2:30 pm - 8:31 amCUR-ONT
21h 01m2 stops
$727American Airlines
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Sat, Apr 18 - Wed, Apr 22
Multiple Airlines Logo
1:04 am - 2:23 pmONT-CUR
34h 19m3 stops
Multiple Airlines Logo
5:50 pm - 9:55 pmCUR-ONT
31h 05m2 stops
$1,059Multiple Airlines
Find Deal
Fri, Apr 17 - Wed, Apr 22
United Airlines Logo
6:05 am - 12:17 pmONT-CUR
26h 12m2 stops
United Airlines Logo
1:16 pm - 9:49 pmCUR-ONT
36h 33m2 stops
$1,138United Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
6:00 am - 12:14 pmONT-CUR
26h 14m2 stops
United Airlines Logo
1:19 pm - 8:58 pmCUR-ONT
35h 39m2 stops
$1,145United Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
1:04 am - 2:23 pmONT-CUR
34h 19m3 stops
Multiple Airlines Logo
5:50 pm - 9:55 pmCUR-ONT
31h 05m3 stops
$1,162Multiple Airlines
Find Deal
Fri, Apr 17 - Wed, Apr 22
United Airlines Logo
6:00 am - 12:17 pmONT-CUR
26h 17m2 stops
United Airlines Logo
1:16 pm - 12:17 pmCUR-ONT
27h 01m2 stops
$1,360United Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Avianca Logo
10:30 pm - 5:00 pmONT-CUR
14h 30m2 stops
Avianca Logo
12:35 pm - 8:55 pmCUR-ONT
36h 20m2 stops
$2,087Avianca
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Tue, Dec 2 - Sat, Dec 6

United Airlines flights from Ontario to Willemstad

Our best United Airlines deals on Ontario to Willemstad flight tickets
United Airlines
Nov 17
ONT6:05 amOntario
26h 12m
2 stops
CUR12:17 pmWillemstad Hato Int.
Dec 2
CUR1:16 pmWillemstad Hato Int.
36h 33m
2 stops
ONT9:49 pmOntario
$1,138
Find similar
United Airlines
Jan 15
ONT6:00 amOntario
26h 14m
2 stops
CUR12:14 pmWillemstad Hato Int.
Jan 19
CUR1:19 pmWillemstad Hato Int.
35h 39m
2 stops
ONT8:58 pmOntario
$1,145
Find similar
United Airlines
Dec 9
ONT6:00 amOntario
26h 17m
2 stops
CUR12:17 pmWillemstad Hato Int.
Dec 16
CUR1:16 pmWillemstad Hato Int.
27h 01m
2 stops
ONT12:17 pmOntario
$1,360
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 October 26, 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

Sat 4/18

11:04 pm-1:15 pm

1 stop11h 11m

Willemstad Hato Int.

Wed 4/22

2:30 pm-8:31 am

2 stops21h 01m

$727

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 4/17

1:04 am-2:23 pm

3 stops34h 19m

Willemstad Hato Int.

Wed 4/22

5:50 pm-9:55 pm

2 stops31h 05m

$1,059

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Mon 11/17

6:05 am-12:17 pm

2 stops26h 12m

Willemstad Hato Int.

Tue 12/2

1:16 pm-9:49 pm

2 stops36h 33m

$1,138

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Thu 1/15

6:00 am-12:14 pm

2 stops26h 14m

Willemstad Hato Int.

Mon 1/19

1:19 pm-8:58 pm

2 stops35h 39m

$1,145

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 4/17

1:04 am-2:23 pm

3 stops34h 19m

Willemstad Hato Int.

Wed 4/22

5:50 pm-9:55 pm

3 stops31h 05m

$1,162

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 12/9

6:00 am-12:17 pm

2 stops26h 17m

Willemstad Hato Int.

Tue 12/16

1:16 pm-12:17 pm

2 stops27h 01m

$1,360

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 12/2

10:30 pm-5:00 pm

2 stops14h 30m

Willemstad Hato Int.

Sat 12/6

12:35 pm-8:55 pm

2 stops36h 20m

$2,087

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 1/9

1:24 pm-2:40 pm

2 stops21h 16m

$424

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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

Direct flights

None
There are no direct flights from Ontario to Willemstad. There are no popular flight routes from Ontario to Willemstad.
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  • 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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