Montreal

$120+ Cheap flights from San Diego (SAN) to Montreal (YMQ)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YMQ
Oct 9 — Oct 161
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Cheapflights Tip: The best prices from San Diego to Montreal are usually found in May or January, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from San Diego to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Montreal (YMQ). 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 September 9, 2025.

Round-trip from

$338
(United)

One-way from

$120
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$419

Good round-trip deal

$625 or less

Good one-way deal

$300 or less
From San Diego to Montreal (YMQ)
One-way flight from San Diego to Montreal (YMQ)
Highest demand for flights based on searches. 11% potential increase in price ($61 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Diego to Montreal (YMQ).
Price to beat on a one-way flight from San Diego to Montreal (YMQ).

Find flight deals from San Diego to Montreal

Cheapest flights from San Diego to Montreal
Explore the most affordable flight options available from San Diego to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2025.

This United deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:18 pmSAN - YUL
1 stop12h 10mMultiple Airlines
Wed 12/39:00 amYUL - SAN
1 stop11h 24mMultiple Airlines
Deal found 9/7$338
This United deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:30 pmSAN - YUL
1 stop12h 30mMultiple Airlines
Mon 11/106:00 amYUL - SAN
1 stop8h 38mMultiple Airlines
Deal found 9/8$345
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:25 pmSAN - YUL
1 stop8h 27mAir Canada
Wed 11/196:00 amYUL - SAN
1 stop8h 38mAir Canada
Deal found 9/8$347
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:30 pmSAN - YUL
1 stop9h 10mUnited Airlines
Sat 10/186:15 amYUL - SAN
1 stop15h 15mUnited Airlines
Deal found 9/7$348
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:48 amSAN - YUL
1 stop7h 38mUnited Airlines
Sat 10/259:45 amYUL - SAN
1 stop15h 29mUnited Airlines
Deal found 9/8$350
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:07 pmSAN - YUL
2 stops15h 33mUnited Airlines
Mon 10/66:15 amYUL - SAN
1 stop15h 15mUnited Airlines
Deal found 9/9$353
This United deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:40 pmSAN - YUL
2 stops14h 20mMultiple Airlines
Sun 12/146:00 amYUL - SAN
1 stop8h 38mMultiple Airlines
Deal found 9/8$354
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:35 pmSAN - YUL
1 stop21h 57mMultiple Airlines
Wed 12/36:45 amYUL - SAN
2 stops31h 58mMultiple Airlines
Deal found 9/8$355
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:05 amSAN - YUL
2 stops13h 38mMultiple Airlines
Sun 12/147:30 pmYUL - SAN
1 stop19h 15mMultiple Airlines
Deal found 9/8$356
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:15 amSAN - YUL
2 stops13h 17mAmerican Airlines
Mon 10/67:29 amYUL - SAN
1 stop16h 04mAmerican Airlines
Deal found 9/8$358
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:21 amSAN - YUL
2 stops12h 18mAmerican Airlines
Sat 11/87:30 amYUL - SAN
2 stops13h 54mAmerican Airlines
Deal found 9/9$361
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:08 pmSAN - YUL
2 stops11h 32mUnited Airlines
Wed 10/2211:23 amYUL - SAN
2 stops11h 39mUnited Airlines
Deal found 9/8$363

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Montreal 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 2,558,603 searches. Data last updated September 9, 2025.
Use the filters below to find and compare flights from San Diego to Montreal that are best for you.

Fly from

San Diego

Fly to

Montreal

Route

Depart

Return

Price

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Wed 11/26

10:18 pm-1:28 pm

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 12/3

9:00 am-5:24 pm

1 stop11h 24m

$338

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Wed 10/1

8:08 pm-8:16 am

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Wed 10/8

4:55 pm-10:14 pm

1 stop8h 19m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Thu 10/2

7:28 pm-8:16 am

1 stop9h 48m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:15 am-11:40 am

1 stop8h 25m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Wed 10/15

6:00 pm-8:16 am

1 stop11h 16m

Montreal Pierre Elliott Trudeau Intl

Tue 10/21

3:41 pm-9:24 pm

1 stop8h 43m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Tue 10/7

8:08 pm-8:16 am

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Tue 10/21

6:30 pm-12:15 am

1 stop8h 45m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Tue 10/7

8:08 pm-8:16 am

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Wed 10/22

11:23 am-7:31 pm

1 stop11h 08m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Thu 10/16

5:01 pm-10:40 am

1 stop14h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 10/21

3:41 pm-9:24 pm

1 stop8h 43m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Mon 10/20

8:08 pm-8:16 am

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Thu 10/23

9:45 am-3:50 pm

1 stop9h 05m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Fri 11/14

5:15 pm-2:00 pm

1 stop17h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 11/17

3:00 pm-9:12 pm

1 stop9h 12m

$348

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Fri 10/17

7:28 pm-8:16 am

1 stop9h 48m

Montreal Pierre Elliott Trudeau Intl

Wed 10/22

3:41 pm-9:24 pm

1 stop8h 43m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from San Diego to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from San Diego 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 San Diego to Montreal

How far ahead should I book a flight from San Diego to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Montreal. Price data was last updated on August 29, 2025.

The price you pay for your flight from San Diego to Montreal may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from San Diego to Montreal (average of $270). Flying from San Diego to Montreal in July is currently the most expensive (average of $409). 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 is the cheapest time of day to fly from SAN to YMQ?

Find hourly flight availability from San Diego to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2025.

When flying from San Diego to Montreal, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 62% versus a flight in the morning.

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated September 9, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines, and United Airlines from San Diego to Montreal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    For a flight from San Diego to Montreal, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 2 outbound flights to Montreal per day. 5 airlines have flights to Montreal from San Diego on a regular basis.

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

    Airlines like United Airlines fly from San Diego to Montreal in about 9h 08m. The time it takes to get you to your destination can typically vary by up to . The distance between San Diego and Montreal is about 2453 mi.

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

    Cheapflights users have booked flights from San Diego to Montreal round-trip from $154. Other airlines that can offer you cheap pricing are Air Canada, from $160, and Delta, from $168. These flights start at 67% lower than the current average price 3 months from now.

  • What are the cheapest flights from San Diego to Montreal?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (San Diego - Montreal Pierre Elliott Trudeau Intl) can be booked for $319 on average, our data indicates $591 when flying from San Diego to Montreal.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from San Diego to Montreal (average of $270). Flying from San Diego to Montreal in July is currently the most expensive (average of $409). 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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Alternative routes for San Diego to Montreal

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from San Diego to Montreal

Discover the top 5 airlines that operate flights from San Diego to Montreal. 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 2,558,603 searches. Data last updated September 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$154Average$632FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$160Average$466FlexibilityNo cancel feeOn-time67%
DeltaCheapest$168Average$432FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$194Average$415FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$324Average$526FlexibilityNo cancel feeOn-time71%

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