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Cheap flights from Montreal to Santiago de los Caballeros from C$ 444

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STI
6 Jun — 13 Jun1
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 7 May 2026.

Mon 9/113:00 p.m.
YUL
-
STI
1 stop19h 46m
United Airlines
Wed 11/114:00 p.m.
STI
-
YUL
2 stops22h 51m
United Airlines
Deal found 5/5C$ 815
Sat 17/102:20 p.m.
YUL
-
STI
2 stops22h 37m
United Airlines
Tue 3/114:00 p.m.
STI
-
YUL
2 stops24h 02m
United Airlines
Deal found 3/5C$ 818
Sat 17/107:55 a.m.
YUL
-
STI
1 stop28h 27m
American Airlines
Tue 3/112:32 p.m.
STI
-
YUL
1 stop9h 27m
American Airlines
Deal found 6/5C$ 851
Mon 15/67:10 a.m.
YUL
-
STI
1 stop14h 02m
American Airlines
Wed 24/69:07 a.m.
STI
-
YUL
1 stop14h 22m
American Airlines
Deal found 5/5C$ 889
Tue 28/74:16 p.m.
YUL
-
STI
2 stops22h 28m
American Airlines
Tue 11/83:31 p.m.
STI
-
YUL
2 stops20h 13m
American Airlines
Deal found 4/5C$ 912

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 7 May 2026.

Round-trip from

C$ 818

One-way from

C$ 444

Popular in

December

Cheapest in

August

Average price

C$ 758
United Airlines
  • United Airlines
  • 17/10-3/11
  • 3 total stops
  • 30h 47m total
  • Montreal to Santiago de los Caballeros
Search Deals
United Airlines
  • United Airlines
  • 17/10
  • 2 total stops
  • 24h 52m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 467 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 197 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 7 May 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

Sat 17/10

2:20 p.m.-12:57 p.m.

2 stops22h 37m

Santiago de los Caballeros

Tue 3/11

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

2 stops24h 02m

C$ 818

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

6:35 p.m.-3:12 p.m.

2 stops20h 37m

Santiago de los Caballeros

Sun 24/5

2:07 p.m.-2:40 p.m.

2 stops24h 33m

C$ 921

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

3:25 p.m.-12:57 p.m.

1 stop21h 32m

Santiago de los Caballeros

Wed 27/5

6:00 a.m.-12:13 a.m.

2 stops18h 13m

C$ 921

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

1:10 p.m.-3:12 p.m.

1 stop26h 02m

Santiago de los Caballeros

Sat 19/9

6:00 a.m.-4:10 p.m.

1 stop10h 10m

C$ 938

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

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

1 stop6h 57m

Santiago de los Caballeros

Sun 24/5

2:07 p.m.-4:10 p.m.

1 stop26h 03m

C$ 984
Quickest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

7:10 a.m.-2:37 p.m.

1 stop7h 27m

Santiago de los Caballeros

Wed 24/6

9:07 a.m.-9:38 p.m.

2 stops12h 31m

C$ 1,003
Cheapest one-way

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

2:20 p.m.-3:12 p.m.

2 stops24h 52m

C$ 444

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

4:16 p.m.-12:22 p.m.

1 stop20h 06m

C$ 630
Quickest one-way

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 25/5

7:10 a.m.-9:13 p.m.

1 stop14h 03m

C$ 715

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

5:45 p.m.-2:59 p.m.

3 stops45h 14m

C$ 717

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Sorted by cheapest first

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$ 284). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,089). 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.

How much does it cost to fly round-trip from Montreal to Santiago de los Caballeros?

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 7 May 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
9,690 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

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
9,690 reviews
United Airlines
7.4
Good
9,690 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

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 fly from Montreal to Santiago de los Caballeros in about 22h 37m. The time it takes to get you to your destination can typically vary by up to . Montreal and Santiago de los Caballeros are separated by a distance of 2910 km.

  • 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$ 597 on this airline. An additional option worth looking into is American Airlines, starting at C$ 824. These flights start at 40% 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, March is the cheapest month in which you can book a flight from Montreal to Santiago de los Caballeros (average of C$ 284). Flying from Montreal to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,089). 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

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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 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 597AverageC$ 894FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 824AverageC$ 1,189FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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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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