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Cheap flights from Ontario to Willemstad from $402

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 4/8. 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

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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.
Avianca Logo
11:35 pm - 5:00 pm
ONT
-
CUR
14h 25m
2 stops
Avianca Logo
11:35 am - 9:45 pm
CUR
-
ONT
13h 10m
2 stops
$775Avianca
Sat, Apr 18 - Thu, Apr 23
Avianca Logo
11:35 pm - 5:00 pm
ONT
-
CUR
14h 25m
2 stops
Avianca Logo
11:35 am - 9:45 pm
CUR
-
ONT
13h 10m
2 stops
$776Avianca
Sat, May 16 - Thu, May 21
Avianca Logo
11:35 pm - 5:00 pm
ONT
-
CUR
14h 25m
2 stops
Avianca Logo
11:35 am - 9:45 pm
CUR
-
ONT
13h 10m
2 stops
$778Avianca
Sat, Apr 18 - Thu, Apr 23
American Airlines Logo
10:26 pm - 2:32 pm
ONT
-
CUR
13h 06m
1 stop
American Airlines Logo
4:46 pm - 9:31 am
CUR
-
ONT
19h 45m
2 stops
$785American Airlines
Sat, May 16 - Thu, May 21
American Airlines Logo
10:26 pm - 2:32 pm
ONT
-
CUR
13h 06m
1 stop
American Airlines Logo
3:48 pm - 11:34 am
CUR
-
ONT
22h 46m
2 stops
$850American Airlines
Sat, May 2 - Sat, May 9
Avianca Logo
11:35 pm - 5:00 pm
ONT
-
CUR
14h 25m
2 stops
Avianca Logo
11:35 am - 9:45 pm
CUR
-
ONT
13h 10m
2 stops
$926Avianca
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
1:10 pm - 3:46 pm
ONT
-
CUR
23h 36m
2 stops
American Airlines Logo
2:40 pm - 1:22 pm
CUR
-
ONT
25h 42m
2 stops
$950American Airlines
Tue, Jul 14 - Mon, Jul 20
Multiple Airlines Logo
9:36 pm - 10:20 am
ONT
-
CUR
33h 44m
3 stops
Multiple Airlines Logo
6:15 pm - 7:46 pm
CUR
-
ONT
28h 31m
3 stops
$975Multiple Airlines
Sat, Apr 18 - Thu, Apr 23
United Airlines Logo
1:43 pm - 1:40 pm
ONT
-
CUR
20h 57m
2 stops
United Airlines Logo
1:19 pm - 9:50 pm
CUR
-
ONT
35h 31m
2 stops
$983United Airlines
Fri, Apr 17 - Wed, Apr 22
Multiple Airlines Logo
9:36 pm - 10:20 am
ONT
-
CUR
33h 44m
3 stops
Multiple Airlines Logo
11:35 am - 7:46 pm
CUR
-
ONT
35h 11m
3 stops
$989Multiple Airlines
Sun, May 17 - Thu, May 21

Avianca flights from Ontario to Willemstad

Our best Avianca deals on Ontario to Willemstad flight tickets
Avianca
Apr 18
ONT11:35 pmOntario
14h 25m
2 stops
CUR5:00 pmWillemstad Hato Int.
Apr 23
CUR11:35 amWillemstad Hato Int.
13h 10m
2 stops
ONT9:45 pmOntario
$775
Avianca
May 16
ONT11:35 pmOntario
14h 25m
2 stops
CUR5:00 pmWillemstad Hato Int.
May 21
CUR11:35 amWillemstad Hato Int.
13h 10m
2 stops
ONT9:45 pmOntario
$776
Avianca
Apr 18
ONT11:35 pmOntario
14h 25m
2 stops
CUR5:00 pmWillemstad Hato Int.
Apr 23
CUR11:35 amWillemstad Hato Int.
13h 10m
2 stops
ONT9:45 pmOntario
$778

United Airlines flights from Ontario to Willemstad

Our best United Airlines deals on Ontario to Willemstad flight tickets
United Airlines
Apr 17
ONT1:43 pmOntario
20h 57m
2 stops
CUR1:40 pmWillemstad Hato Int.
Apr 22
CUR1:19 pmWillemstad Hato Int.
35h 31m
2 stops
ONT9:50 pmOntario
$983
United Airlines
Apr 13
ONT6:05 amOntario
27h 07m
2 stops
CUR12:12 pmWillemstad Hato Int.
Apr 20
CUR1:19 pmWillemstad Hato Int.
23h 37m
2 stops
ONT9:56 amOntario
$1,211
United Airlines
Apr 18
ONT1:27 pmOntario
43h 45m
2 stops
CUR12:12 pmWillemstad Hato Int.
Apr 22
CUR1:19 pmWillemstad Hato Int.
35h 31m
2 stops
ONT9:50 pmOntario
$1,213

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 March 21, 2026.
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

Cheapest round-trip
Quickest round-trip

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 4/18

11:35 pm-5:00 pm

2 stops14h 25m

Willemstad Hato Int.

Thu 4/23

11:35 am-9:45 pm

2 stops13h 10m

$775

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 5/16

11:35 pm-5:00 pm

2 stops14h 25m

Willemstad Hato Int.

Thu 5/21

11:35 am-9:45 pm

2 stops13h 10m

$776

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 4/18

11:35 pm-5:00 pm

2 stops14h 25m

Willemstad Hato Int.

Thu 4/23

11:35 am-9:45 pm

2 stops13h 10m

$778

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 5/16

10:26 pm-2:32 pm

1 stop13h 06m

Willemstad Hato Int.

Thu 5/21

4:46 pm-9:31 am

2 stops19h 45m

$785

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 5/2

10:26 pm-2:32 pm

1 stop13h 06m

Willemstad Hato Int.

Sat 5/9

3:48 pm-11:34 am

2 stops22h 46m

$850

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 8/18

11:35 pm-5:00 pm

2 stops14h 25m

Willemstad Hato Int.

Tue 8/25

11:35 am-9:45 pm

2 stops13h 10m

$926

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Tue 7/14

1:10 pm-3:46 pm

2 stops23h 36m

Willemstad Hato Int.

Mon 7/20

2:40 pm-1:22 pm

2 stops25h 42m

$950

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sat 4/18

9:36 pm-10:20 am

3 stops33h 44m

Willemstad Hato Int.

Thu 4/23

6:15 pm-7:46 pm

3 stops28h 31m

$975

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Fri 4/17

1:43 pm-1:40 pm

2 stops20h 57m

Willemstad Hato Int.

Wed 4/22

1:19 pm-9:50 pm

2 stops35h 31m

$983

OntarioWillemstad

ONT - CUR

ONTCUR

Ontario

Sun 5/17

9:36 pm-10:20 am

3 stops33h 44m

Willemstad Hato Int.

Thu 5/21

11:35 am-7:46 pm

3 stops35h 11m

$989

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from Ontario to Willemstad Hato Int.?

Avianca is the most popular carrier operating from Ontario to Willemstad Hato Int.

What airlines fly to Willemstad?

Copa Airlines, American Airlines and JetBlue are the top three most popular airlines that fly to Willemstad from Ontario according to our data. Copa Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Willemstad. Keep in mind that there are 5 different airlines that fly to Willemstad on a routine basis, so you have a few additional options to choose from.

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

14h 25m

Direct flights

None
The fastest flight from Ontario to Willemstad takes 14h 25m
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 14h 25m 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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
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American Airlines
JetBlue
Avianca
Delta