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Cheap flights from Ontario to Port of Spain from $458

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 Port of Spain departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Port of Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:24 pm - 6:31 pm
ONT
-
POS
16h 07m
1 stop
JetBlue Logo
7:41 pm - 10:35 pm
POS
-
ONT
29h 54m
1 stop
$722JetBlue
Sat, Aug 8 - Mon, Aug 17
United Airlines Logo
6:00 am - 11:23 pm
ONT
-
POS
14h 23m
1 stop
United Airlines Logo
12:30 am - 12:12 pm
POS
-
ONT
14h 42m
2 stops
$739United Airlines
Fri, Aug 28 - Sun, Aug 30
JetBlue Logo
11:24 pm - 6:31 pm
ONT
-
POS
16h 07m
1 stop
JetBlue Logo
7:41 pm - 10:35 pm
POS
-
ONT
29h 54m
1 stop
$771JetBlue
Sat, Aug 8 - Sun, Aug 16
JetBlue Logo
11:24 pm - 6:31 pm
ONT
-
POS
16h 07m
1 stop
JetBlue Logo
7:41 pm - 10:35 pm
POS
-
ONT
29h 54m
1 stop
$789JetBlue
Sat, Aug 8 - Sat, Aug 15
JetBlue Logo
11:50 pm - 6:31 pm
ONT
-
POS
15h 41m
1 stop
JetBlue Logo
7:41 pm - 10:35 pm
POS
-
ONT
29h 54m
1 stop
$794JetBlue
Fri, Aug 28 - Mon, Aug 31
JetBlue Logo
11:50 pm - 6:31 pm
ONT
-
POS
15h 41m
1 stop
JetBlue Logo
7:41 pm - 10:35 pm
POS
-
ONT
29h 54m
1 stop
$820JetBlue
Fri, Aug 7 - Sun, Aug 16
American Airlines Logo
10:10 pm - 10:33 pm
ONT
-
POS
21h 23m
2 stops
American Airlines Logo
3:18 pm - 1:22 pm
POS
-
ONT
25h 04m
2 stops
$829American Airlines
Mon, Jul 6 - Sun, Jul 12
United Airlines Logo
5:00 am - 12:50 am
ONT
-
POS
16h 50m
2 stops
United Airlines Logo
12:30 am - 5:54 pm
POS
-
ONT
20h 24m
2 stops
$854United Airlines
Wed, Jul 15 - Sun, Jul 19
United Airlines Logo
6:00 am - 11:23 pm
ONT
-
POS
14h 23m
1 stop
United Airlines Logo
12:30 am - 10:59 pm
POS
-
ONT
25h 29m
2 stops
$859United Airlines
Fri, Sep 25 - Sun, Sep 27
American Airlines Logo
11:59 pm - 10:33 pm
ONT
-
POS
19h 34m
2 stops
American Airlines Logo
3:18 pm - 11:45 am
POS
-
ONT
23h 27m
2 stops
$864American Airlines
Mon, Jul 6 - Sun, Jul 12

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United Airlines flights from Ontario to Port of Spain

Our best United Airlines deals on Ontario to Port of Spain flight tickets
United Airlines
Aug 28
ONT6:00 amOntario
14h 23m
1 stop
POS11:23 pmPort of Spain Piarco Intl
Aug 30
POS12:30 amPort of Spain Piarco Intl
14h 42m
2 stops
ONT12:12 pmOntario
$739
United Airlines
Jul 15
ONT5:00 amOntario
15h 23m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Jul 27
POS12:30 amPort of Spain Piarco Intl
23h 12m
2 stops
ONT8:42 pmOntario
$854
United Airlines
Sep 25
ONT1:52 pmOntario
30h 31m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Sep 27
POS12:30 amPort of Spain Piarco Intl
23h 01m
2 stops
ONT8:31 pmOntario
$859

JetBlue flights from Ontario to Port of Spain

Our best JetBlue deals on Ontario to Port of Spain flight tickets
JetBlue
Aug 8
ONT11:24 pmOntario
16h 07m
1 stop
POS6:31 pmPort of Spain Piarco Intl
Aug 17
POS7:41 pmPort of Spain Piarco Intl
29h 54m
1 stop
ONT10:35 pmOntario
$722
JetBlue
Aug 8
ONT11:24 pmOntario
16h 07m
1 stop
POS6:31 pmPort of Spain Piarco Intl
Aug 16
POS7:41 pmPort of Spain Piarco Intl
29h 54m
1 stop
ONT10:35 pmOntario
$771
JetBlue
Aug 8
ONT11:24 pmOntario
16h 07m
1 stop
POS6:31 pmPort of Spain Piarco Intl
Aug 15
POS7:41 pmPort of Spain Piarco Intl
29h 54m
1 stop
ONT10:35 pmOntario
$789

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Port of Spain 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 Port of Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 8/8

11:24 pm-6:31 pm

1 stop16h 07m

Port of Spain Piarco Intl

Mon 8/17

7:41 pm-10:35 pm

1 stop29h 54m

$722
Quickest round-trip

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 8/28

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Sun 8/30

12:30 am-12:12 pm

2 stops14h 42m

$739

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 8/8

11:24 pm-6:31 pm

1 stop16h 07m

Port of Spain Piarco Intl

Sun 8/16

7:41 pm-10:35 pm

1 stop29h 54m

$771

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 8/8

11:24 pm-6:31 pm

1 stop16h 07m

Port of Spain Piarco Intl

Sat 8/15

7:41 pm-10:35 pm

1 stop29h 54m

$789

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 8/28

11:50 pm-6:31 pm

1 stop15h 41m

Port of Spain Piarco Intl

Mon 8/31

7:41 pm-10:35 pm

1 stop29h 54m

$794

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 8/7

11:50 pm-6:31 pm

1 stop15h 41m

Port of Spain Piarco Intl

Sun 8/16

7:41 pm-10:35 pm

1 stop29h 54m

$820

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Mon 7/6

10:10 pm-10:33 pm

2 stops21h 23m

Port of Spain Piarco Intl

Sun 7/12

3:18 pm-1:22 pm

2 stops25h 04m

$829

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 7/15

5:00 am-12:50 am

2 stops16h 50m

Port of Spain Piarco Intl

Sun 7/19

12:30 am-5:54 pm

2 stops20h 24m

$854

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 9/25

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Sun 9/27

12:30 am-10:59 pm

2 stops25h 29m

$859

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Mon 7/6

11:59 pm-10:33 pm

2 stops19h 34m

Port of Spain Piarco Intl

Sun 7/12

3:18 pm-11:45 am

2 stops23h 27m

$864

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Port of Spain from

How to get the cheapest flight ticket from Ontario to Port of Spain

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

Can stopping save me money on Ontario to Port of Spain flights?

You could potentially save up to 15% on your flight if you consider stops on a Ontario to Port of Spain flight.

When to book flights from Ontario to Port of Spain

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

Cheap Ontario to Port of Spain (ONT to POS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Port of Spain

Fastest flight time

15h 37m

Direct flights

None
The fastest flight from Ontario to Port of Spain takes 15h 37m
There are no direct flights from Ontario to Port of Spain. There are no popular flight routes from Ontario to Port of Spain.
Search flight deals

Frequently asked questions about flying from Ontario to Port of Spain

  • How far is Ontario to Port of Spain Piarco Intl by plane?

    Port of Spain Piarco Intl is 3875.9 mi away from Ontario. 15h 37m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Port of Spain Piarco Intl Airport?

    Prices for flights from Ontario Airport to Port of Spain Piarco Intl Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Port of Spain Piarco Intl 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 Port of Spain Piarco Intl Airport.

  • What documentation or ID do you need to fly to Port of Spain Piarco Intl Airport?

    The travel and health documents you'll need for your trip to Port of Spain Piarco Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Port of Spain Piarco Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Port of Spain?

Book flights to Port of Spain if you plan to visit one of these locations
Piarco

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Port of Spain?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Port of Spain from Ontario.

Can I find flights from Ontario to Port of Spain with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Port of Spain flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Port of Spain?

Once you have performed a search for Ontario to Port of Spain flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to Port of Spain now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Port of Spain and let you know when they change.

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