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Cheap flights from Montreal to San Antonio from C$ 289

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAT
22 Apr — 29 Apr1
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 23 March 2026.

Sat 18/412:42 p.m.
YUL
-
SAT
1 stop8h 48m
Delta
Wed 22/46:20 a.m.
SAT
-
YUL
1 stop10h 20m
Delta
Deal found 19/3C$ 508
Fri 1/53:45 p.m.
YUL
-
SAT
1 stop6h 13m
American Airlines
Sun 3/56:14 p.m.
SAT
-
YUL
1 stop16h 30m
American Airlines
Deal found 18/3C$ 542
Fri 3/47:12 a.m.
YUL
-
SAT
1 stop16h 43m
American Airlines
Tue 7/48:14 a.m.
SAT
-
YUL
1 stop13h 44m
American Airlines
Deal found 20/3C$ 564
Mon 6/46:46 p.m.
YUL
-
SAT
1 stop6h 52m
Delta
Sun 12/46:13 a.m.
SAT
-
YUL
1 stop10h 28m
Delta
Deal found 21/3C$ 567
Tue 5/512:30 p.m.
YUL
-
SAT
2 stops11h 22m
American Airlines
Tue 12/511:29 a.m.
SAT
-
YUL
1 stop10h 29m
American Airlines
Deal found 21/3C$ 569
Mon 6/49:15 a.m.
YUL
-
SAT
1 stop14h 43m
United Airlines
Sun 12/47:15 p.m.
SAT
-
YUL
2 stops15h 36m
United Airlines
Deal found 21/3C$ 582
Fri 3/411:10 a.m.
YUL
-
SAT
2 stops10h 53m
Air Canada
Tue 7/42:02 p.m.
SAT
-
YUL
1 stop6h 24m
Air Canada
Deal found 19/3C$ 594
Thu 21/59:45 a.m.
YUL
-
SAT
1 stop7h 18m
United Airlines
Sun 24/57:35 p.m.
SAT
-
YUL
2 stops16h 34m
United Airlines
Deal found 20/3C$ 595
Tue 5/59:45 a.m.
YUL
-
SAT
2 stops12h 35m
United Airlines
Tue 12/52:00 p.m.
SAT
-
YUL
2 stops9h 13m
United Airlines
Deal found 21/3C$ 597
Fri 19/68:15 a.m.
YUL
-
SAT
1 stop16h 44m
United Airlines
Wed 24/65:57 p.m.
SAT
-
YUL
2 stops12h 50m
United Airlines
Deal found 20/3C$ 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 23 March 2026.

Round-trip from

C$ 508

One-way from

C$ 289
Delta
  • Delta
  • 18/4-22/4
  • 2 total stops
  • 19h 08m total
  • Montreal to San Antonio
Search Deals
25/4
  • 25/4
  • 1 total stop
  • 16h 51m total
  • Montreal to San Antonio
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 23 March 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

Sat 18/4

12:42 p.m.-8:30 p.m.

1 stop8h 48m

San Antonio

Wed 22/4

6:20 a.m.-5:40 p.m.

1 stop10h 20m

C$ 508

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

7:00 a.m.-5:13 p.m.

1 stop11h 13m

San Antonio

Wed 1/7

12:15 p.m.-11:56 p.m.

1 stop10h 41m

C$ 508

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

6:00 a.m.-3:49 p.m.

1 stop10h 49m

San Antonio

Tue 12/5

12:08 p.m.-11:57 p.m.

1 stop10h 49m

C$ 508

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

7:10 a.m.-5:20 p.m.

1 stop11h 10m

San Antonio

Sun 24/5

12:08 p.m.-11:57 p.m.

1 stop10h 49m

C$ 508

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

6:00 a.m.-2:57 p.m.

1 stop9h 57m

San Antonio

Mon 27/7

6:45 a.m.-5:05 p.m.

1 stop9h 20m

C$ 509

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

3:45 p.m.-8:58 p.m.

1 stop6h 13m

San Antonio

Sun 3/5

6:14 p.m.-11:44 a.m.

1 stop16h 30m

C$ 542
Quickest round-trip

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 6/4

6:46 p.m.-12:38 a.m.

1 stop6h 52m

San Antonio

Sun 12/4

6:13 a.m.-5:41 p.m.

1 stop10h 28m

C$ 567

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

9:45 a.m.-4:03 p.m.

1 stop7h 18m

San Antonio

Sun 24/5

7:35 p.m.-1:09 p.m.

2 stops16h 34m

C$ 595

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

9:45 a.m.-9:20 p.m.

2 stops12h 35m

San Antonio

Tue 12/5

2:00 p.m.-12:13 a.m.

2 stops9h 13m

C$ 597
Cheapest one-way

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 20/4

6:45 p.m.-12:46 a.m.

1 stop7h 01m

C$ 295

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/3

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, July is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 259). Flying from Montreal to San Antonio in January is currently the most expensive (average of C$ 643). 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 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 83% 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$ 685.

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 23 March 2026.
Read through reviews of airlines operating flights from Montreal to San Antonio, such as Delta,WestJet, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,319 reviews
Check prices

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,319 reviews
Delta
7.9
Good
8,319 reviews
Check prices

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,300 reviews
Delta
7.9
Good
8,319 reviews
Check prices

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,492 reviews
Delta
7.9
Good
8,319 reviews
Check prices

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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. 4 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 8h 48m. There are 2787 km between Montreal and San Antonio.

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

    Currently priced at C$ 309, United Airlines will fly you from Montreal to San Antonio and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and WestJet - these airlines can fly you to your destination from C$ 352 and C$ 495, respectively.

  • 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, July is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 259). Flying from Montreal to San Antonio in January is currently the most expensive (average of C$ 643). 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

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Top 4 airlines flying from Montreal to San Antonio

Discover the top 4 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 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 309AverageC$ 417FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 352AverageC$ 493FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 418AverageC$ 1,251FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 495AverageC$ 773FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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.

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