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Cheap flights from Montreal to Santiago de los Caballeros from C$ 303

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STI
26 Dec — 2 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Santiago de los Caballeros (STI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 November 2025.

Round-trip from

C$ 600

One-way from

C$ 303

Popular in

December

Cheapest in

January

Average price

C$ 728
21/1-28/1
  • 21/1-28/1
  • 2 total stops
  • 55h 15m total
  • Montreal to Santiago de los Caballeros
Search Deals
7/12
  • 7/12
  • 1 total stop
  • 17h 42m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 342 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (C$ 215 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Montreal to Santiago de los Caballeros

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Santiago de los Caballeros
Explore the most affordable flight options available from Montreal to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 November 2025.

Sun 7/128:00 a.m.YUL - STI
1 stop17h 42mMultiple Airlines
Sun 1/34:40 p.m.STI - YUL
1 stop24h 48mMultiple Airlines
Deal found 26/11C$ 659
Thu 11/128:00 a.m.YUL - STI
1 stop17h 42mMultiple Airlines
Sat 13/123:43 a.m.STI - YUL
3 stops21h 32mMultiple Airlines
Deal found 25/11C$ 744
Mon 24/111:10 p.m.YUL - STI
2 stops24h 43mUnited Airlines
Fri 12/124:00 p.m.STI - YUL
2 stops19h 10mUnited Airlines
Deal found 24/11C$ 852
Thu 11/127:14 a.m.YUL - STI
2 stops12h 19mAmerican Airlines
Sun 14/124:32 p.m.STI - YUL
2 stops22h 17mAmerican Airlines
Deal found 25/11C$ 1,129

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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, Cheapflights users made 629,999 searches. Data last updated 26 November 2025.
Use the filters below to find and compare flights from Montreal to Santiago de los Caballeros that are best for you.

Fly from

Montreal

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

8:00 a.m.-3:35 p.m.

1 stop30h 35m

Santiago de los Caballeros

Wed 25/2

4:40 p.m.-4:22 p.m.

1 stop24h 42m

C$ 642

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 7/12

8:00 a.m.-2:42 a.m.

1 stop17h 42m

Santiago de los Caballeros

Sun 1/3

4:40 p.m.-4:28 p.m.

1 stop24h 48m

C$ 659

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

7:00 a.m.-9:46 p.m.

2 stops13h 46m

Santiago de los Caballeros

Wed 28/1

6:00 a.m.-3:20 p.m.

2 stops10h 20m

C$ 666

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

3:11 p.m.-10:51 p.m.

1 stop7h 40m

Santiago de los Caballeros

Thu 19/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

7:00 a.m.-1:53 p.m.

1 stop6h 53m

Santiago de los Caballeros

Fri 20/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

6:00 a.m.-10:51 p.m.

2 stops16h 51m

Santiago de los Caballeros

Fri 20/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

7:00 a.m.-1:53 p.m.

1 stop6h 53m

Santiago de los Caballeros

Fri 20/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

7:00 a.m.-1:53 p.m.

1 stop6h 53m

Santiago de los Caballeros

Fri 20/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

6:00 a.m.-11:51 p.m.

2 stops16h 51m

Santiago de los Caballeros

Wed 28/1

6:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

7:00 a.m.-1:53 p.m.

1 stop6h 53m

Santiago de los Caballeros

Thu 19/3

5:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 667

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/11

Showing 1-10 of 19 results
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Best time to book a flight from Montreal to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal to Santiago de los Caballeros

What is the cheapest month to book a flight from Montreal to Santiago de los Caballeros?

Currently, October is the cheapest month in which you can book a flight from Montreal to Santiago de los Caballeros (average of C$ 313). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 626). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to STI?

Find hourly flight availability from Montreal to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 November 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 64% on flights from Montreal to Santiago de los Caballeros by exploring options for tickets at noon.

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago de los Caballeros. Reviews last updated 26 November 2025.
Get a feel of what it's like to fly with United Airlines from Montreal to Santiago de los Caballeros by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,046 reviews
Check prices

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,046 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Montreal to Santiago de los Caballeros. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santiago de los Caballeros from Montreal?

    Located just 10.9 km from the city centre, Santiago de los Caballeros is the airport most travellers will use when flying to Santiago de los Caballeros from Montreal. Booking flights from Montreal to Santiago (STI) should be relatively easy as there are 0 daily inbound flights from Montreal from 1 airline.

  • How long is the flight from Montreal to Santiago de los Caballeros?

    Airlines like American Airlines and United Airlines fly from Montreal to Santiago de los Caballeros in about 7h 40m. The time it takes to get you to your destination can typically vary by up to 6h 06m. Montreal and Santiago de los Caballeros are separated by a distance of 2910 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Montreal to Santiago de los Caballeros round-trip?

    Our cheapest airline available from Montreal to Santiago de los Caballeros is United Airlines. Our recent data shows that you can find tickets from as low as C$ 622 on this airline. This flight start at 38% lower than the current average price 3 months from now.

  • Can I find deals for flights from Montreal to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Montreal to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Santiago de los Caballeros.

  • Can I find deals for business class flights from Montreal to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Montreal to Santiago de los Caballeros by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Santiago de los Caballeros?

    Currently, October is the cheapest month in which you can book a flight from Montreal to Santiago de los Caballeros (average of C$ 313). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 626). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Montreal to Santiago de los Caballeros

Discover the top airline that operate flights from Montreal to Santiago de los Caballeros. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 619AverageC$ 928FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to Santiago de los Caballeros?

When you search for this flight from Montreal to Santiago de los Caballeros, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Santiago de los Caballeros?

Cheapflights helps you find that perfect flight to Santiago de los Caballeros from Montreal by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Montreal to Santiago de los Caballeros with no change fees?

Yes, we can. To see specific flights from Montreal to Santiago de los Caballeros with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Montreal to Santiago de los Caballeros become cheaper?

Yes, Cheapflights offers price alerts on Montreal to Santiago de los Caballeros flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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