Find flights
When to book
Airlines
FAQs

Cheap flights from Montreal to Santiago de los Caballeros from C$ 364

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STI
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 654

One-way from

C$ 364

Popular in

December

Cheapest in

January

Average price

C$ 1,778
American Airlines
  • American Airlines
  • 13/9-20/9
  • 4 total stops
  • 45h 45m total
  • Montreal to Santiago de los Caballeros
United Airlines
  • United Airlines
  • 19/8
  • 2 total stops
  • 22h 17m total
  • Montreal to Santiago de los Caballeros
Highest demand for flights based on searches. 25% potential increase in price (C$ 527 potential increase over avg. RT price).
Cheapest flight prices on average. 15% potential price decrease (C$ 202 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from Montreal to Santiago de los Caballeros

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 3 July 2025.

Sat 13/912:59 p.m.YUL - STI
2 stops23h 28mAmerican Airlines
Sat 20/91:29 p.m.STI - YUL
2 stops22h 17mAmerican Airlines
Deal found 2/7C$ 654
Fri 26/96:00 a.m.YUL - STI
1 stop6h 57mUnited Airlines
Mon 6/104:23 p.m.STI - YUL
2 stops18h 17mUnited Airlines
Deal found 1/7C$ 656
Thu 7/86:45 a.m.YUL - STI
1 stop27h 05mMultiple Airlines
Thu 14/810:20 a.m.STI - YUL
2 stops14h 07mMultiple Airlines
Deal found 3/7C$ 797
Wed 30/76:45 a.m.YUL - STI
2 stops18h 02mDelta
Wed 6/86:03 a.m.STI - YUL
2 stops18h 24mDelta
Deal found 2/7C$ 1,563

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 3 July 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

Sat 13/9

12:59 p.m.-12:27 p.m.

2 stops23h 28m

Santiago de los Caballeros

Sat 20/9

1:29 p.m.-11:46 a.m.

2 stops22h 17m

C$ 654

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 26/9

6:00 a.m.-12:57 p.m.

1 stop6h 57m

Santiago de los Caballeros

Mon 6/10

4:23 p.m.-10:40 a.m.

2 stops18h 17m

C$ 656

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 7/8

6:45 a.m.-9:50 a.m.

1 stop27h 05m

Santiago de los Caballeros

Thu 14/8

10:20 a.m.-12:27 a.m.

2 stops14h 07m

C$ 797

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 30/7

6:45 a.m.-12:47 a.m.

2 stops18h 02m

Santiago de los Caballeros

Wed 6/8

6:03 a.m.-12:27 a.m.

2 stops18h 24m

C$ 1,563

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 19/8

4:55 p.m.-3:12 p.m.

2 stops22h 17m

C$ 364

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 17/8

6:45 a.m.-9:15 a.m.

2 stops26h 30m

C$ 387

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 15/8

7:29 a.m.-8:48 p.m.

2 stops13h 19m

C$ 409

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 18/7

6:00 a.m.-7:28 p.m.

1 stop13h 28m

C$ 883

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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 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 3 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 14% 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 3 July 2025.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican 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.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
8.0
Very good

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure

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.

  • What are the cheapest airlines flying from Montreal to Santiago de los Caballeros round-trip?

    Our cheapest airline available from Montreal to Santiago de los Caballeros is American Airlines. Our recent data shows that you can find tickets from as low as C$ 654 on this airline. Additional options worth looking into are United Airlines and Delta, starting at C$ 656 and C$ 1,563 round-trip. These flights start at 41% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal to Santiago de los Caballeros one-way?

    One-way options have recently been found by users for as low as C$ 364 on United Airlines. Other airlines that offer cheap prices include American Airlines from C$ 409 and Delta from C$ 883 one-way.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 601AverageC$ 893FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.