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Cheap flights from Ontario to Santiago de los Caballeros from $497

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 8/1. 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
7:15 pm - 9:29 pm
ONT
-
STI
23h 14m
2 stops
American Airlines Logo
7:00 am - 9:43 pm
STI
-
ONT
17h 43m
2 stops
$802American Airlines
Thu, Jul 16 - Thu, Jul 23
Delta Logo
10:59 pm - 5:46 pm
ONT
-
STI
15h 47m
2 stops
Delta Logo
7:16 pm - 6:18 pm
STI
-
ONT
26h 02m
2 stops
$830Delta
Thu, Oct 8 - Thu, Oct 15
United Airlines Logo
1:52 pm - 10:49 am
ONT
-
STI
17h 57m
2 stops
United Airlines Logo
5:00 am - 6:29 pm
STI
-
ONT
16h 29m
2 stops
$835United Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
8:00 pm - 12:10 pm
ONT
-
STI
13h 10m
2 stops
American Airlines Logo
1:40 pm - 8:30 am
STI
-
ONT
21h 50m
2 stops
$840American Airlines
Thu, Oct 8 - Thu, Oct 15
United Airlines Logo
6:00 am - 12:57 pm
ONT
-
STI
27h 57m
2 stops
United Airlines Logo
4:23 pm - 9:59 pm
STI
-
ONT
32h 36m
2 stops
$855United Airlines
Sat, Sep 26 - Tue, Sep 29
American Airlines Logo
6:11 am - 9:29 pm
ONT
-
STI
12h 18m
2 stops
American Airlines Logo
7:00 am - 11:59 pm
STI
-
ONT
19h 59m
2 stops
$875American Airlines
Thu, Jul 16 - Thu, Jul 23
American Airlines Logo
7:15 pm - 9:29 pm
ONT
-
STI
23h 14m
2 stops
American Airlines Logo
7:00 am - 11:59 pm
STI
-
ONT
19h 59m
2 stops
$909American Airlines
Thu, Jul 16 - Thu, Jul 23
American Airlines Logo
7:15 pm - 9:29 pm
ONT
-
STI
23h 14m
2 stops
American Airlines Logo
7:00 am - 10:32 pm
STI
-
ONT
18h 32m
2 stops
$919American Airlines
Thu, Jul 16 - Thu, Jul 23
United Airlines Logo
1:50 pm - 3:12 pm
ONT
-
STI
22h 22m
2 stops
United Airlines Logo
2:07 pm - 12:47 pm
STI
-
ONT
25h 40m
2 stops
$1,039United Airlines
Mon, Jul 20 - Wed, Jul 29
United Airlines Logo
4:20 pm - 12:57 pm
ONT
-
STI
17h 37m
2 stops
United Airlines Logo
4:23 pm - 6:11 pm
STI
-
ONT
28h 48m
2 stops
$1,085United Airlines
Sat, Aug 8 - Sat, Aug 15

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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 24
ONT1:52 pmOntario
17h 57m
2 stops
STI10:49 amSantiago de los Caballeros
Oct 28
STI5:00 amSantiago de los Caballeros
16h 29m
2 stops
ONT6:29 pmOntario
$835
United Airlines
Sep 26
ONT6:00 amOntario
27h 57m
2 stops
STI12:57 pmSantiago de los Caballeros
Sep 29
STI4:23 pmSantiago de los Caballeros
32h 36m
2 stops
ONT9:59 pmOntario
$855
United Airlines
Jul 20
ONT1:50 pmOntario
22h 22m
2 stops
STI3:12 pmSantiago de los Caballeros
Jul 29
STI2:07 pmSantiago de los Caballeros
25h 40m
2 stops
ONT12:47 pmOntario
$1,039

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
Jul 16
ONT7:15 pmOntario
23h 14m
2 stops
STI9:29 pmSantiago de los Caballeros
Jul 23
STI7:00 amSantiago de los Caballeros
17h 43m
2 stops
ONT9:43 pmOntario
$802
American Airlines
Oct 8
ONT8:00 pmOntario
13h 10m
2 stops
STI12:10 pmSantiago de los Caballeros
Oct 15
STI1:40 pmSantiago de los Caballeros
21h 50m
2 stops
ONT8:30 amOntario
$840
American Airlines
Jul 16
ONT6:11 amOntario
12h 18m
2 stops
STI9:29 pmSantiago de los Caballeros
Jul 23
STI7:00 amSantiago de los Caballeros
19h 59m
2 stops
ONT11:59 pmOntario
$875

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 June 26, 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

7:15 pm-9:29 pm

2 stops23h 14m

Santiago de los Caballeros

Thu 7/23

7:00 am-9:43 pm

2 stops17h 43m

$802

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 10/8

10:59 pm-5:46 pm

2 stops15h 47m

Santiago de los Caballeros

Thu 10/15

7:16 pm-6:18 pm

2 stops26h 02m

$830

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 10/24

1:52 pm-10:49 am

2 stops17h 57m

Santiago de los Caballeros

Wed 10/28

5:00 am-6:29 pm

2 stops16h 29m

$835

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 10/8

8:00 pm-12:10 pm

2 stops13h 10m

Santiago de los Caballeros

Thu 10/15

1:40 pm-8:30 am

2 stops21h 50m

$840

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/26

6:00 am-12:57 pm

2 stops27h 57m

Santiago de los Caballeros

Tue 9/29

4:23 pm-9:59 pm

2 stops32h 36m

$855
Quickest round-trip

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 7/16

6:11 am-9:29 pm

2 stops12h 18m

Santiago de los Caballeros

Thu 7/23

7:00 am-11:59 pm

2 stops19h 59m

$875

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 7/16

7:15 pm-9:29 pm

2 stops23h 14m

Santiago de los Caballeros

Thu 7/23

7:00 am-11:59 pm

2 stops19h 59m

$909

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 7/16

7:15 pm-9:29 pm

2 stops23h 14m

Santiago de los Caballeros

Thu 7/23

7:00 am-10:32 pm

2 stops18h 32m

$919

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 7/20

1:50 pm-3:12 pm

2 stops22h 22m

Santiago de los Caballeros

Wed 7/29

2:07 pm-12:47 pm

2 stops25h 40m

$1,039

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 8/8

4:20 pm-12:57 pm

2 stops17h 37m

Santiago de los Caballeros

Sat 8/15

4:23 pm-6:11 pm

2 stops28h 48m

$1,085

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 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

15h 47m

Direct flights

None
The fastest flight from Ontario to Santiago de los Caballeros takes 15h 47m
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 15h 47m 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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