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Cheap flights from Montreal to Santiago de los Caballeros from C$ 625

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 24/12. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STI
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

C$ 652

One-way from

C$ 625

Popular in

December

Cheapest in

January

Average price

C$ 898
17/10-31/10
  • 17/10-31/10
  • 3 total stops
  • 68h 48m total
  • Montreal to Santiago de los Caballeros
Search Deals
United Airlines
  • United Airlines
  • 24/12
  • 2 total stops
  • 28h 38m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (C$ 640 potential increase over avg. RT price).
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Cheapest flight prices on average. 15% potential price decrease (C$ 197 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 17 September 2025.

Fri 17/106:35 p.m.YUL - STI
2 stops40h 03mMultiple Airlines
Fri 31/1011:43 a.m.STI - YUL
1 stop28h 45mMultiple Airlines
Deal found 15/9C$ 652
Tue 14/106:00 a.m.YUL - STI
1 stop9h 12mUnited Airlines
Tue 21/102:07 p.m.STI - YUL
1 stop7h 59mUnited Airlines
Deal found 14/9C$ 655
Tue 7/104:55 p.m.YUL - STI
2 stops22h 17mUnited Airlines
Thu 23/102:07 p.m.STI - YUL
1 stop7h 59mUnited Airlines
Deal found 15/9C$ 671
Mon 6/103:44 p.m.YUL - STI
2 stops20h 29mAmerican Airlines
Sat 11/101:14 p.m.STI - YUL
2 stops22h 26mAmerican Airlines
Deal found 16/9C$ 684
Tue 14/106:00 a.m.YUL - STI
2 stops13h 06mDelta
Tue 21/108:31 p.m.STI - YUL
2 stops21h 03mDelta
Deal found 14/9C$ 703
Sat 20/99:15 a.m.YUL - STI
2 stops16h 31mUnited Airlines
Tue 30/96:00 a.m.STI - YUL
2 stops15h 29mUnited Airlines
Deal found 17/9C$ 718
Mon 13/106:00 a.m.YUL - STI
1 stop6h 57mUnited Airlines
Sat 25/106:00 a.m.STI - YUL
1 stop7h 09mUnited Airlines
Deal found 16/9C$ 735
Fri 17/104:30 p.m.YUL - STI
2 stops33h 16mUnited Airlines
Fri 31/103:00 p.m.STI - YUL
2 stops25h 28mUnited Airlines
Deal found 15/9C$ 765
Mon 13/106:00 a.m.YUL - STI
1 stop9h 12mUnited Airlines
Mon 20/106:00 a.m.STI - YUL
1 stop7h 09mUnited Airlines
Deal found 15/9C$ 766
Tue 7/106:35 p.m.YUL - STI
3 stops40h 03mMultiple Airlines
Thu 23/1011:43 a.m.STI - YUL
2 stops12h 44mMultiple Airlines
Deal found 15/9C$ 783

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 17 September 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

Tue 14/10

6:00 a.m.-3:12 p.m.

1 stop9h 12m

Santiago de los Caballeros

Tue 21/10

2:07 p.m.-10:06 p.m.

1 stop7h 59m

C$ 655

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

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

2 stops22h 17m

Santiago de los Caballeros

Thu 23/10

2:07 p.m.-10:06 p.m.

1 stop7h 59m

C$ 671

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 6/10

3:44 p.m.-12:13 p.m.

2 stops20h 29m

Santiago de los Caballeros

Sat 11/10

1:14 p.m.-11:40 a.m.

2 stops22h 26m

C$ 684

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 14/10

6:00 a.m.-7:06 p.m.

2 stops13h 06m

Santiago de los Caballeros

Tue 21/10

8:31 p.m.-5:34 p.m.

2 stops21h 03m

C$ 703

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 17/10

4:30 p.m.-1:46 a.m.

2 stops33h 16m

Santiago de los Caballeros

Fri 31/10

3:00 p.m.-4:28 p.m.

2 stops25h 28m

C$ 765

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 13/10

6:00 a.m.-3:12 p.m.

1 stop9h 12m

Santiago de los Caballeros

Mon 20/10

6:00 a.m.-1:09 p.m.

1 stop7h 09m

C$ 766

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

6:35 p.m.-10:38 a.m.

3 stops40h 03m

Santiago de los Caballeros

Thu 23/10

11:43 a.m.-12:27 a.m.

2 stops12h 44m

C$ 783

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

7:00 a.m.-9:24 p.m.

1 stop13h 24m

Santiago de los Caballeros

Sun 15/2

8:00 a.m.-11:15 p.m.

1 stop16h 15m

C$ 869

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 24/12

9:15 a.m.-2:53 p.m.

2 stops28h 38m

C$ 625

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 26/12

7:00 a.m.-12:39 a.m.

2 stops16h 39m

C$ 915

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 13 results
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 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 17 September 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 17 September 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
8,926 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 United Airlines and American Airlines fly from Montreal to Santiago de los Caballeros in about 9h 12m. The time it takes to get you to your destination can typically vary by up to 11h 17m. 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$ 603 on this airline. This flight start at 42% 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.

See more FAQs

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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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 603AverageC$ 896FlexibilityNo 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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