Find flights
When to book
Airlines
FAQs

Cheap flights from Montreal to San Antonio from C$ 304

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 19/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAT
2 Jul — 9 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to San Antonio
Explore the most affordable flight options available from Montreal to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 June 2026.

Fri 14/84:40 p.m.
YUL
-
SAT
1 stop6h 48m
Air Canada
Tue 25/89:00 a.m.
SAT
-
YUL
1 stop8h 52m
Air Canada
Deal found 29/5C$ 497
Wed 15/79:45 a.m.
YUL
-
SAT
1 stop7h 44m
United Airlines
Sun 19/75:32 p.m.
SAT
-
YUL
1 stop16h 08m
United Airlines
Deal found 1/6C$ 526
Thu 13/89:45 a.m.
YUL
-
SAT
1 stop7h 46m
United Airlines
Tue 25/86:36 a.m.
SAT
-
YUL
1 stop9h 54m
United Airlines
Deal found 31/5C$ 527
Sat 15/85:35 p.m.
YUL
-
SAT
1 stop8h 05m
American Airlines
Tue 25/85:00 a.m.
SAT
-
YUL
1 stop8h 44m
American Airlines
Deal found 31/5C$ 540
Fri 14/88:40 a.m.
YUL
-
SAT
1 stop15h 11m
Air Canada
Wed 26/85:30 a.m.
SAT
-
YUL
1 stop8h 30m
Air Canada
Deal found 29/5C$ 549
Sat 15/84:30 p.m.
YUL
-
SAT
1 stop7h 14m
Air Canada
Tue 25/89:00 a.m.
SAT
-
YUL
1 stop6h 22m
Air Canada
Deal found 31/5C$ 562
Mon 17/82:10 p.m.
YUL
-
SAT
1 stop8h 03m
Air Canada
Sat 29/89:00 a.m.
SAT
-
YUL
2 stops10h 20m
Air Canada
Deal found 29/5C$ 574
Sat 15/86:00 a.m.
YUL
-
SAT
1 stop8h 59m
Delta
Sat 22/83:00 p.m.
SAT
-
YUL
1 stop7h 30m
Delta
Deal found 31/5C$ 578
Thu 2/76:50 p.m.
YUL
-
SAT
1 stop16h 02m
WestJet
Wed 8/74:00 p.m.
SAT
-
YUL
1 stop6h 25m
WestJet
Deal found 29/5C$ 580
Sat 20/67:29 a.m.
YUL
-
SAT
1 stop15h 47m
American Airlines
Sun 5/76:01 a.m.
SAT
-
YUL
1 stop6h 48m
American Airlines
Deal found 30/5C$ 601
Thu 13/88:00 p.m.
YUL
-
SAT
2 stops14h 48m
WestJet
Thu 27/82:43 p.m.
SAT
-
YUL
1 stop8h 16m
WestJet
Deal found 29/5C$ 602

Find flight deals from Montreal to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to San Antonio (SAT). 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 2 June 2026.

Round-trip from

C$ 497

One-way from

C$ 304

Popular in

March

Cheapest in

April

Average price

C$ 613
Air Canada
  • Air Canada
  • 14/8-25/8
  • 2 total stops
  • 15h 40m total
  • Montreal to San Antonio
Search Deals
Delta
  • Delta
  • 19/6
  • 1 total stop
  • 11h 14m total
  • Montreal to San Antonio
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to San Antonio 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 2 June 2026.
Use the filters below to find and compare flights from Montreal to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

9:45 a.m.-4:29 p.m.

1 stop7h 44m

San Antonio

Sun 19/7

5:32 p.m.-10:40 a.m.

1 stop16h 08m

C$ 526
Quickest round-trip

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 9/7

7:00 a.m.-1:38 p.m.

1 stop7h 38m

San Antonio

Fri 10/7

4:15 p.m.-11:52 p.m.

1 stop6h 37m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

9:45 a.m.-10:51 p.m.

1 stop14h 06m

San Antonio

Sat 29/8

6:00 a.m.-10:06 p.m.

1 stop15h 06m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

6:47 p.m.-12:28 a.m.

1 stop6h 41m

San Antonio

Mon 24/8

5:15 a.m.-4:20 p.m.

1 stop10h 05m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

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

1 stop6h 51m

San Antonio

Sun 23/8

6:36 a.m.-5:30 p.m.

1 stop9h 54m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

9:45 a.m.-10:51 p.m.

1 stop14h 06m

San Antonio

Sat 22/8

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

1 stop9h 10m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

9:45 a.m.-4:31 p.m.

1 stop7h 46m

San Antonio

Sat 29/8

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

1 stop9h 10m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

6:50 p.m.-9:52 a.m.

1 stop16h 02m

San Antonio

Wed 8/7

4:00 p.m.-11:25 p.m.

1 stop6h 25m

C$ 580

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 17/8

8:40 a.m.-10:51 p.m.

1 stop15h 11m

San Antonio

Thu 27/8

5:59 p.m.-7:47 a.m.

2 stops12h 48m

C$ 612

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 17/8

8:40 a.m.-10:51 p.m.

1 stop15h 11m

San Antonio

Sun 23/8

5:30 a.m.-5:27 p.m.

2 stops10h 57m

C$ 612

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Montreal to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio 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 San Antonio

What is the cheapest month to book a flight from Montreal to San Antonio?

Currently, October is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 311). Flying from Montreal to San Antonio in February is currently the most expensive (average of C$ 803). 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 San Antonio?

What’s the top layover airport for flights from Montreal to San Antonio?

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

Atlanta (ATL) – chosen by Cheapflights users on 80% of one-stop itineraries from Montreal to San Antonio on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to San Antonio?

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

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of C$ 691.

What’s the fastest layover option from Montreal to San Antonio?

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

Flights via Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 5h 35m.

Which airport typically offers the quickest layover for flights from Montreal to San Antonio?

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

Flights via Detroit (DTW) offer the fastest connection on this route, with an average layover time of 0h 39m.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated 2 June 2026.
Read through reviews of airlines operating flights from Montreal to San Antonio, such as WestJet and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,350 reviews
Check prices

Food

6.2

Crew

7.9

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.0

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..
WestJet
7.2
Good
3,350 reviews
WestJet
7.2
Good
3,350 reviews
Check prices

Food

6.2

Crew

7.9

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.0

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..
American Airlines
7.1
Good
11,643 reviews
WestJet
7.2
Good
3,350 reviews
Check prices

Food

6.2

Crew

7.9

Entertainment

6.1

Boarding

7.4

Overall

7.2

Comfort

7.0

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..

Related info for your journey

Find useful and relevant information for your journey from Montreal to San Antonio. 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 San Antonio from Montreal?

    San Antonio (SAT), located 12.2 km from the city centre, is the airport you fly into when you book flights from Montreal to San Antonio. 3 airlines have flights to San Antonio from Montreal on a regular basis. Booking flights from Montreal to San Antonio should not be difficult; the airport handles an average of 0 inbound flights from Montreal per day.

  • How long is the flight from Montreal to San Antonio?

    Departing from Montreal to San Antonio will take you 7h 38m. There are 2787 km between Montreal and San Antonio. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal to San Antonio round-trip?

    Currently priced at C$ 495, Delta will fly you from Montreal to San Antonio and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from WestJet and Air Canada - these airlines can fly you to your destination from C$ 639 and C$ 757, respectively. Delta is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Montreal to San Antonio that include hotel bookings?

    Yes. In addition to deals on Montreal to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to San Antonio?

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

  • Can I find deals for business class flights from Montreal to San Antonio?

    Yes. Cheapflights offers flight deals from Montreal to San Antonio 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 San Antonio?

    Currently, October is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 311). Flying from Montreal to San Antonio in February is currently the most expensive (average of C$ 803). 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 3 airlines flying from Montreal to San Antonio

Discover the top 3 airlines that operate flights from Montreal to San Antonio. 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 2 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 495AverageC$ 565FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 639AverageC$ 793FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 757AverageC$ 1,265FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 San Antonio?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to San Antonio. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to San Antonio?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Montreal to San Antonio for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Montreal to San Antonio with no change fees?

Yes! Cheapflights helps users easily find flights from Montreal to San Antonio with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to San Antonio become cheaper?

Of course! You can now track prices for flights from Montreal to San Antonio and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price 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.