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Cheap flights from Ontario to Santiago de los Caballeros from $443

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 10/7. 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 Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:27 pm - 2:35 pmONT  Ontario-STI Santiago de los Caballeros
21h 08m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:15 pm - 9:29 amSTI  Santiago de los Caballeros-ONT Ontario
21h 14m2 stops Miami Dallas/Fort Worth
$790American Airlines
Tue, Sep 1 - Sat, Sep 19
United Airlines Logo
6:00 am - 12:57 pmONT  Ontario-STI Santiago de los Caballeros
27h 57m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
2:07 pm - 8:58 pmSTI  Santiago de los Caballeros-ONT Ontario
33h 51m2 stops Newark Denver Intl
$845United Airlines
Sat, Oct 17 - Wed, Oct 21
United Airlines Logo
6:00 am - 12:57 pmONT  Ontario-STI Santiago de los Caballeros
27h 57m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
6:00 am - 10:51 pmSTI  Santiago de los Caballeros-ONT Ontario
19h 51m2 stops Newark San Francisco
$845United Airlines
Sat, Oct 17 - Wed, Oct 21
United Airlines Logo
1:18 pm - 3:12 pmONT  Ontario-STI Santiago de los Caballeros
22h 54m2 stops Denver Intl Newark
United Airlines Logo
2:07 pm - 12:50 pmSTI  Santiago de los Caballeros-ONT Ontario
25h 43m2 stops Newark Denver Intl
$849United Airlines
Wed, Sep 9 - Wed, Sep 16
JetBlue Logo
10:39 pm - 1:49 pmONT  Ontario-STI Santiago de los Caballeros
12h 10m1 stop New York John F Kennedy Intl
JetBlue Logo
11:45 am - 9:00 pmSTI  Santiago de los Caballeros-ONT Ontario
12h 15m1 stop New York John F Kennedy Intl
$862JetBlue
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
1:00 pm - 11:46 amONT  Ontario-STI Santiago de los Caballeros
18h 46m2 stops Denver Intl Newark
United Airlines Logo
6:00 am - 6:44 pmSTI  Santiago de los Caballeros-ONT Ontario
16h 44m2 stops Newark Chicago O'Hare Intl
$866United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
5:00 am - 10:52 pmONT  Ontario-STI Santiago de los Caballeros
14h 52m2 stops Denver Intl Newark
United Airlines Logo
6:00 am - 8:31 pmSTI  Santiago de los Caballeros-ONT Ontario
17h 31m2 stops Newark San Francisco
$869United Airlines
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
7:00 am - 12:57 pmONT  Ontario-STI Santiago de los Caballeros
26h 57m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
2:07 pm - 12:50 pmSTI  Santiago de los Caballeros-ONT Ontario
25h 43m2 stops Newark Denver Intl
$916United Airlines
Sat, Sep 12 - Sun, Sep 20
United Airlines Logo
9:25 am - 2:53 pmONT  Ontario-STI Santiago de los Caballeros
25h 28m2 stops San Francisco Newark
United Airlines Logo
6:00 am - 8:20 pmSTI  Santiago de los Caballeros-ONT Ontario
18h 20m2 stops Newark Denver Intl
$939United Airlines
Thu, Nov 26 - Tue, Dec 1
JetBlue Logo
11:59 pm - 2:08 pmONT  Ontario-STI Santiago de los Caballeros
11h 09m1 stop New York John F Kennedy Intl
JetBlue Logo
11:45 am - 8:57 pmSTI  Santiago de los Caballeros-ONT Ontario
12h 12m1 stop New York John F Kennedy Intl
$970JetBlue
Tue, Sep 1 - Sat, Sep 19

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American Airlines flights from Ontario to Santiago de los Caballeros

Our best American Airlines deals on Ontario to Santiago de los Caballeros flight tickets
American Airlines
Sep 1
ONT2:27 pmOntario
21h 08m
2 stops
STI2:35 pmSantiago de los Caballeros
Sep 19
STI3:15 pmSantiago de los Caballeros
21h 14m
2 stops
ONT9:29 amOntario
$790
American Airlines
Sep 1
ONT6:15 amOntario
10h 48m
2 stops
STI8:03 pmSantiago de los Caballeros
Sep 19
STI3:15 pmSantiago de los Caballeros
21h 14m
3 stops
ONT9:29 amOntario
$2,152
American Airlines
Sep 1
ONT6:15 amOntario
10h 48m
2 stops
STI8:03 pmSantiago de los Caballeros
Sep 19
STI3:15 pmSantiago de los Caballeros
21h 14m
3 stops
ONT9:29 amOntario
$2,263

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
Oct 17
ONT6:00 amOntario
27h 57m
2 stops
STI12:57 pmSantiago de los Caballeros
Oct 21
STI6:00 amSantiago de los Caballeros
19h 51m
2 stops
ONT10:51 pmOntario
$845
United Airlines
Sep 9
ONT1:18 pmOntario
22h 54m
2 stops
STI3:12 pmSantiago de los Caballeros
Sep 16
STI2:07 pmSantiago de los Caballeros
25h 43m
2 stops
ONT12:50 pmOntario
$849
United Airlines
Dec 2
ONT1:00 pmOntario
18h 46m
2 stops
STI11:46 amSantiago de los Caballeros
Dec 5
STI6:00 amSantiago de los Caballeros
16h 44m
2 stops
ONT6:44 pmOntario
$866

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 August 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 Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/1

2:27 pm-2:35 pm

2 stops21h 08m

Santiago de los Caballeros

Sat 9/19

3:15 pm-9:29 am

2 stops21h 14m

$790

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 10/17

6:00 am-12:57 pm

2 stops27h 57m

Santiago de los Caballeros

Wed 10/21

2:07 pm-8:58 pm

2 stops33h 51m

$845

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 10/17

6:00 am-12:57 pm

2 stops27h 57m

Santiago de los Caballeros

Wed 10/21

6:00 am-10:51 pm

2 stops19h 51m

$845

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Wed 9/9

1:18 pm-3:12 pm

2 stops22h 54m

Santiago de los Caballeros

Wed 9/16

2:07 pm-12:50 pm

2 stops25h 43m

$849

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/22

10:39 pm-1:49 pm

1 stop12h 10m

Santiago de los Caballeros

Tue 10/6

11:45 am-9:00 pm

1 stop12h 15m

$862

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Wed 12/2

1:00 pm-11:46 am

2 stops18h 46m

Santiago de los Caballeros

Sat 12/5

6:00 am-6:44 pm

2 stops16h 44m

$866

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/22

5:00 am-10:52 pm

2 stops14h 52m

Santiago de los Caballeros

Tue 10/6

6:00 am-8:31 pm

2 stops17h 31m

$869

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 9/12

7:00 am-12:57 pm

2 stops26h 57m

Santiago de los Caballeros

Sun 9/20

2:07 pm-12:50 pm

2 stops25h 43m

$916

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Thu 11/26

9:25 am-2:53 pm

2 stops25h 28m

Santiago de los Caballeros

Tue 12/1

6:00 am-8:20 pm

2 stops18h 20m

$939
Quickest round-trip

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/1

11:59 pm-2:08 pm

1 stop11h 09m

Santiago de los Caballeros

Sat 9/19

11:45 am-8:57 pm

1 stop12h 12m

$970

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 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

What is the cheapest airline that flies from Ontario to Santiago de los Caballeros?

United Airlines and JetBlue are the most popular carriers operating from Ontario to Santiago de los Caballeros

What airlines fly to Santiago de los Caballeros?

American Airlines, JetBlue and Copa Airlines are the top three most popular airlines that fly to Santiago de los Caballeros from Ontario according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Santiago de los Caballeros. Keep in mind that there are 6 different airlines that fly to Santiago de los Caballeros on a routine basis, so you have a few additional options to choose from.

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

11h 45m

Direct flights

None
The fastest flight from Ontario to Santiago de los Caballeros takes 11h 45m
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 11h 45m 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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