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Cheap flights from Montreal to Santiago de los Caballeros from C$ 455

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STI
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 June 2026.

Tue 1/96:10 a.m.
YUL
-
STI
2 stops33h 02m
United Airlines
Sat 12/94:23 p.m.
STI
-
YUL
2 stops25h 07m
United Airlines
Deal found 14/6C$ 823
Sat 12/96:10 a.m.
YUL
-
STI
2 stops30h 47m
United Airlines
Sat 26/92:07 p.m.
STI
-
YUL
2 stops20h 33m
United Airlines
Deal found 16/6C$ 825
Wed 7/106:00 a.m.
YUL
-
STI
1 stop16h 52m
United Airlines
Sun 18/104:23 p.m.
STI
-
YUL
2 stops22h 17m
United Airlines
Deal found 16/6C$ 837
Tue 3/116:10 a.m.
YUL
-
STI
2 stops16h 41m
United Airlines
Thu 5/116:00 a.m.
STI
-
YUL
1 stop11h 21m
United Airlines
Deal found 14/6C$ 856
Sun 1/117:30 a.m.
YUL
-
STI
2 stops12h 19m
American Airlines
Thu 12/112:32 p.m.
STI
-
YUL
1 stop9h 27m
American Airlines
Deal found 17/6C$ 878
Sat 8/87:29 a.m.
YUL
-
STI
2 stops13h 38m
American Airlines
Sat 15/83:35 p.m.
STI
-
YUL
2 stops20h 08m
American Airlines
Deal found 16/6C$ 906
Mon 10/87:55 a.m.
YUL
-
STI
2 stops13h 12m
American Airlines
Sat 22/83:35 p.m.
STI
-
YUL
2 stops20h 08m
American Airlines
Deal found 16/6C$ 917
Sun 1/111:25 p.m.
YUL
-
STI
2 stops24h 28m
United Airlines
Thu 12/114:00 p.m.
STI
-
YUL
2 stops16h 45m
United Airlines
Deal found 17/6C$ 944

Find 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 18 June 2026.

Round-trip from

C$ 823

One-way from

C$ 455
United Airlines
  • United Airlines
  • 1/9-12/9
  • 3 total stops
  • 32h 48m total
  • Montreal to Santiago de los Caballeros
Search Deals
American Airlines
  • American Airlines
  • 12/8
  • 2 total stops
  • 12h 34m total
  • Montreal to Santiago de los Caballeros
Search Deals

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 18 June 2026.
Use the filters below to find and compare flights from Montreal to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

6:10 a.m.-3:12 p.m.

2 stops33h 02m

Santiago de los Caballeros

Sat 12/9

4:23 p.m.-5:30 p.m.

2 stops25h 07m

C$ 823

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 1/12

7:00 a.m.-2:53 p.m.

1 stop6h 53m

Santiago de los Caballeros

Wed 2/12

4:00 p.m.-3:02 p.m.

2 stops24h 02m

C$ 1,024

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 3/11

8:05 a.m.-11:51 p.m.

1 stop14h 46m

Santiago de los Caballeros

Thu 5/11

6:00 a.m.-4:21 p.m.

1 stop11h 21m

C$ 1,101

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

9:30 a.m.-7:34 p.m.

1 stop10h 04m

Santiago de los Caballeros

Sat 29/8

8:59 p.m.-8:39 a.m.

1 stop11h 40m

C$ 1,139

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 16/7

4:35 p.m.-10:52 p.m.

2 stops30h 17m

Santiago de los Caballeros

Thu 23/7

4:23 p.m.-5:27 p.m.

2 stops25h 04m

C$ 1,218

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

9:45 a.m.-10:52 p.m.

2 stops37h 07m

Santiago de los Caballeros

Fri 31/7

4:23 p.m.-2:40 p.m.

2 stops22h 17m

C$ 1,232

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

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

2 stops22h 17m

Santiago de los Caballeros

Wed 5/8

4:23 p.m.-7:45 p.m.

2 stops27h 22m

C$ 1,233

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

6:00 a.m.-7:34 p.m.

2 stops13h 34m

Santiago de los Caballeros

Thu 6/8

8:59 p.m.-5:42 p.m.

2 stops20h 43m

C$ 1,240
Quickest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 30/6

9:30 a.m.-7:33 p.m.

1 stop10h 03m

Santiago de los Caballeros

Thu 9/7

8:59 p.m.-8:32 a.m.

1 stop11h 33m

C$ 1,240
Cheapest one-way
Quickest one-way

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

7:29 a.m.-8:03 p.m.

2 stops12h 34m

C$ 455

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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, March is the cheapest month in which you can book a flight from Montreal to Santiago de los Caballeros (average of C$ 293). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,312). 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’s the top layover airport for flights from Montreal to Santiago de los Caballeros?

Share of one-stop round-trip flights from Montreal to Santiago de los Caballeros chosen by Cheapflights users in the past 12 months, using the same layover each way.

Newark (EWR) – chosen by Cheapflights users on 94% of one-stop itineraries from Montreal to Santiago de los Caballeros on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Santiago de los Caballeros?

Average round-trip fare for 1-stop flights from Montreal to Santiago de los Caballeros, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of C$ 857.

What’s the fastest layover option from Montreal to Santiago de los Caballeros?

Shortest average travel time for 1-stop one-way flights from Montreal to Santiago de los Caballeros, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 7h 12m.

Which airport typically offers the quickest layover for flights from Montreal to Santiago de los Caballeros?

Average layover duration for 1-stop one-way flights from Montreal to Santiago de los Caballeros, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 58m.

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 18 June 2026.
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
9,845 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,845 reviews
United Airlines
7.4
Good
9,845 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 2 different airlines.

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

    Airlines like United Airlines and Delta fly from Montreal to Santiago de los Caballeros in about 10h 04m. The time it takes to get you to your destination can typically vary by up to 22h 58m. 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 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 United Airlines. Our recent data shows that you can find tickets from as low as C$ 615 on this airline. An additional option worth looking into is American Airlines, starting at C$ 909.

  • 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, March is the cheapest month in which you can book a flight from Montreal to Santiago de los Caballeros (average of C$ 293). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,312). 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

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

Top 2 airlines flying from Montreal to Santiago de los Caballeros

Discover the top 2 airlines 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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 615AverageC$ 946FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 909AverageC$ 1,226FlexibilityNo cancel feeOn-time71%
Search American 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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