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Cheap flights from Ontario to Santiago de los Caballeros from $377

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 Santiago de los Caballeros departing on 5/23. 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 Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:10 pm - 2:44 pm
ONT
-
STI
22h 34m
2 stops
American Airlines Logo
7:00 am - 10:32 pm
STI
-
ONT
18h 32m
2 stops
$719American Airlines
Thu, Jul 16 - Thu, Jul 23
JetBlue Logo
10:41 pm - 7:44 pm
ONT
-
STI
18h 03m
1 stop
JetBlue Logo
8:14 am - 8:47 pm
STI
-
ONT
15h 33m
1 stop
$772JetBlue
Tue, Jun 2 - Sat, Jun 6
JetBlue Logo
10:41 pm - 6:48 pm
ONT
-
STI
17h 07m
1 stop
JetBlue Logo
8:14 am - 8:47 pm
STI
-
ONT
15h 33m
1 stop
$782JetBlue
Sat, May 30 - Fri, Jun 5
JetBlue Logo
9:10 pm - 10:47 am
ONT
-
STI
10h 37m
1 stop
JetBlue Logo
6:30 am - 8:13 pm
STI
-
ONT
16h 43m
1 stop
$823JetBlue
Sat, Sep 26 - Wed, Sep 30
JetBlue Logo
9:10 pm - 10:47 am
ONT
-
STI
10h 37m
1 stop
JetBlue Logo
6:30 am - 8:13 pm
STI
-
ONT
16h 43m
1 stop
$833JetBlue
Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
6:00 am - 12:57 pm
ONT
-
STI
27h 57m
2 stops
United Airlines Logo
6:00 am - 10:26 pm
STI
-
ONT
19h 26m
2 stops
$835United Airlines
Sat, Sep 26 - Wed, Sep 30
JetBlue Logo
10:41 pm - 7:44 pm
ONT
-
STI
18h 03m
1 stop
JetBlue Logo
8:14 am - 8:47 pm
STI
-
ONT
15h 33m
1 stop
$856JetBlue
Wed, Jun 3 - Sat, Jun 6
JetBlue Logo
9:10 pm - 10:47 am
ONT
-
STI
10h 37m
1 stop
JetBlue Logo
6:30 am - 8:13 pm
STI
-
ONT
16h 43m
1 stop
$875JetBlue
Sat, Sep 26 - Wed, Sep 30
JetBlue Logo
10:41 pm - 10:32 pm
ONT
-
STI
20h 51m
1 stop
JetBlue Logo
6:00 am - 10:01 pm
STI
-
ONT
19h 01m
1 stop
$879JetBlue
Sat, May 30 - Sat, Jun 13
JetBlue Logo
9:10 pm - 12:59 am
ONT
-
STI
24h 49m
1 stop
JetBlue Logo
6:30 am - 10:09 pm
STI
-
ONT
18h 39m
1 stop
$880JetBlue
Fri, Sep 18 - Fri, Oct 16

United Airlines flights from Ontario to Santiago de los Caballeros

Our best United Airlines deals on Ontario to Santiago de los Caballeros flight tickets
United Airlines
Sep 26
ONT6:00 amOntario
27h 57m
2 stops
STI12:57 pmSantiago de los Caballeros
Sep 30
STI6:00 amSantiago de los Caballeros
19h 26m
2 stops
ONT10:26 pmOntario
$835
United Airlines
May 27
ONT6:30 pmOntario
25h 22m
2 stops
STI10:52 pmSantiago de los Caballeros
Jun 2
STI2:07 pmSantiago de los Caballeros
25h 40m
2 stops
ONT12:47 pmOntario
$895
United Airlines
May 30
ONT1:18 pmOntario
20h 39m
2 stops
STI12:57 pmSantiago de los Caballeros
Jun 5
STI2:07 pmSantiago de los Caballeros
25h 31m
2 stops
ONT12:38 pmOntario
$915

JetBlue flights from Ontario to Santiago de los Caballeros

Our best JetBlue deals on Ontario to Santiago de los Caballeros flight tickets
JetBlue
Jun 2
ONT10:41 pmOntario
18h 03m
1 stop
STI7:44 pmSantiago de los Caballeros
Jun 6
STI8:14 amSantiago de los Caballeros
15h 33m
1 stop
ONT8:47 pmOntario
$772
JetBlue
May 30
ONT10:41 pmOntario
17h 07m
1 stop
STI6:48 pmSantiago de los Caballeros
Jun 5
STI8:14 amSantiago de los Caballeros
15h 33m
1 stop
ONT8:47 pmOntario
$782
JetBlue
Sep 26
ONT9:10 pmOntario
10h 37m
1 stop
STI10:47 amSantiago de los Caballeros
Sep 30
STI6:30 amSantiago de los Caballeros
16h 43m
1 stop
ONT8:13 pmOntario
$823

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Santiago de los Caballeros 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 May 11, 2026.
Use the filters below to find and compare flights from Ontario to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 7/16

1:10 pm-2:44 pm

2 stops22h 34m

Santiago de los Caballeros

Thu 7/23

7:00 am-10:32 pm

2 stops18h 32m

$719

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 6/2

10:41 pm-7:44 pm

1 stop18h 03m

Santiago de los Caballeros

Sat 6/6

8:14 am-8:47 pm

1 stop15h 33m

$772

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 5/30

10:41 pm-6:48 pm

1 stop17h 07m

Santiago de los Caballeros

Fri 6/5

8:14 am-8:47 pm

1 stop15h 33m

$782
Quickest round-trip

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/26

9:10 pm-10:47 am

1 stop10h 37m

Santiago de los Caballeros

Wed 9/30

6:30 am-8:13 pm

1 stop16h 43m

$823

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/26

9:10 pm-10:47 am

1 stop10h 37m

Santiago de los Caballeros

Wed 9/30

6:30 am-8:13 pm

1 stop16h 43m

$833

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/26

6:00 am-12:57 pm

2 stops27h 57m

Santiago de los Caballeros

Wed 9/30

6:00 am-10:26 pm

2 stops19h 26m

$835

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 6/3

10:41 pm-7:44 pm

1 stop18h 03m

Santiago de los Caballeros

Sat 6/6

8:14 am-8:47 pm

1 stop15h 33m

$856

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/26

9:10 pm-10:47 am

1 stop10h 37m

Santiago de los Caballeros

Wed 9/30

6:30 am-8:13 pm

1 stop16h 43m

$875

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 5/30

10:41 pm-10:32 pm

1 stop20h 51m

Santiago de los Caballeros

Sat 6/13

6:00 am-10:01 pm

1 stop19h 01m

$879

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Fri 9/18

9:10 pm-12:59 am

1 stop24h 49m

Santiago de los Caballeros

Fri 10/16

6:30 am-10:09 pm

1 stop18h 39m

$880

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Santiago de los Caballeros from

How to get the cheapest flight ticket from Ontario to Santiago de los Caballeros

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 Santiago de los Caballeros flights?

You could potentially save up to 7% on your flight if you consider stops on a Ontario to Santiago de los Caballeros flight.

When to book flights from Ontario to Santiago de los Caballeros

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

Cheap Ontario to Santiago de los Caballeros (ONT to STI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Santiago de los Caballeros

Fastest flight time

10h 37m

Direct flights

None
The fastest flight from Ontario to Santiago de los Caballeros takes 10h 37m
There are no direct flights from Ontario to Santiago de los Caballeros. There are no popular flight routes from Ontario to Santiago de los Caballeros.
Search flight deals

Frequently asked questions about flying from Ontario to Santiago de los Caballeros

  • How far is Ontario to Santiago de los Caballeros by plane?

    A flight from Ontario to Santiago de los Caballeros will travel around 3035.8 mi. Typically, this will take 10h 37m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Santiago de los Caballeros Airport?

    Prices for flights from Ontario Airport to Santiago de los Caballeros Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Santiago de los Caballeros 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 Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The necessary travel and health documents for your Santiago de los Caballeros 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.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Santiago de los Caballeros?

Finding the right flight to Santiago de los Caballeros from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Santiago de los Caballeros quick and easy, saving you time and money.

Can I find flights from Ontario to Santiago de los Caballeros with flexible booking policies on momondo?

momondo does allow users to show only those flights to Santiago de los Caballeros 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 Santiago de los Caballeros?

Once you have performed a search for Ontario to Santiago de los Caballeros 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 Santiago de los Caballeros right now. Can momondo alert me if prices change?

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

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