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Cheap flights from Montreal to San Diego from C$ 186

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAN
22 Apr — 29 Apr1
1 adult

Cheapflights Tip: The best prices from Montreal to San Diego are usually found in March or April, booked 34 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Montreal to San Diego

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

Round-trip from

C$ 334

One-way from

C$ 186

Popular in

December

Cheapest in

March

Average price

C$ 505

Good round-trip deal

C$ 358 or less

Good one-way deal

C$ 198 or less
Air Canada
  • Air Canada
  • 25/9-30/9
  • 1 total stop
  • 13h 24m total
  • Montreal to San Diego
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WestJet
  • WestJet
  • 5/6
  • 1 total stop
  • 9h 20m total
  • Montreal to San Diego
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Highest demand for flights based on searches. 11% potential increase in price (C$ 116 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 28 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Montreal (YMQ) to San Diego.
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Price to beat on a one-way flight from Montreal (YMQ) to San Diego.
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Find flight deals from Montreal to San Diego

Cheapest flights from Montreal to San Diego
Explore the most affordable flight options available from Montreal to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Thu 25/94:45 p.m.YUL - SAN
Nonstop5h 50mAir Canada
Sun 28/98:10 a.m.SAN - YUL
Nonstop5h 30mAir Canada
Deal found 16/4C$ 340
Wed 13/84:45 p.m.YUL - SAN
Nonstop5h 53mUnited Airlines
Wed 20/87:00 a.m.SAN - YUL
1 stop13h 26mUnited Airlines
Deal found 16/4C$ 365
Fri 8/87:00 a.m.YUL - SAN
1 stop9h 20mWestJet
Sun 24/811:15 a.m.SAN - YUL
1 stop10h 28mWestJet
Deal found 16/4C$ 379
Mon 5/54:00 p.m.YUL - SAN
2 stops10h 59mAmerican Airlines
Tue 13/510:39 p.m.SAN - YUL
2 stops12h 05mAmerican Airlines
Deal found 16/4C$ 391
Sun 25/56:45 a.m.YUL - SAN
1 stop9h 10mMultiple Airlines
Sun 8/61:00 p.m.SAN - YUL
1 stop15h 08mMultiple Airlines
Deal found 16/4C$ 394
Sat 22/114:55 p.m.YUL - SAN
1 stop8h 36mDelta
Sat 6/1210:10 p.m.SAN - YUL
1 stop11h 05mDelta
Deal found 16/4C$ 402
Mon 28/46:45 a.m.YUL - SAN
1 stop9h 20mPorter Airlines
Mon 5/51:55 p.m.SAN - YUL
1 stop7h 42mPorter Airlines
Deal found 16/4C$ 487

Cheapflights Fare Finder

Customize your flight search to find flights from Montreal to San Diego 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 April 2025.
Use the filters below to find and compare flights from Montreal to San Diego that are best for you.

Fly from

Montreal

Fly to

San Diego

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 25/9

7:30 a.m.-4:07 p.m.

1 stop11h 37m

San Diego

Sun 28/9

8:10 a.m.-4:40 p.m.

Nonstop5h 30m

C$ 340

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 13/8

4:45 p.m.-7:38 p.m.

Nonstop5h 53m

San Diego

Mon 25/8

8:10 a.m.-4:39 p.m.

Nonstop5h 29m

C$ 365

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 8/8

7:00 a.m.-1:20 p.m.

1 stop9h 20m

San Diego

Sun 24/8

11:15 a.m.-12:43 a.m.

1 stop10h 28m

C$ 379

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

4:00 p.m.-11:59 p.m.

2 stops10h 59m

San Diego

Tue 13/5

10:39 p.m.-1:44 p.m.

2 stops12h 05m

C$ 391

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 25/5

6:45 a.m.-12:55 p.m.

1 stop9h 10m

San Diego

Sun 8/6

1:00 p.m.-7:08 a.m.

1 stop15h 08m

C$ 394

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 28/4

6:45 a.m.-1:05 p.m.

1 stop9h 20m

San Diego

Mon 5/5

1:55 p.m.-12:37 a.m.

1 stop7h 42m

C$ 487

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 12/8

7:30 a.m.-6:52 p.m.

2 stops14h 22m

San Diego

Sat 23/8

8:00 a.m.-11:57 p.m.

1 stop12h 57m

C$ 577

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 5/6

7:00 a.m.-1:20 p.m.

1 stop9h 20m

C$ 186

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 5/6

4:45 p.m.-7:45 p.m.

Nonstop6h 00m

C$ 202

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

6:15 a.m.-11:43 a.m.

1 stop8h 28m

C$ 218

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

Showing 1-10 of 13 results
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Best time to book a flight from Montreal to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Montreal to San Diego. Price data was last updated on 11 April 2025.

Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 300). Flying from Montreal to San Diego in July is currently the most expensive (average of C$ 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 YMQ to SAN?

Find hourly flight availability from Montreal to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 April 2025.

One of the essential ways to save on airfare from Montreal to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 41% on airfare.

What is the cheapest day to fly from Montreal to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Montreal to San Diego. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to San Diego flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated 17 April 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and SWISS from Montreal to San Diego to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
281 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,916 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
SWISS
7.5
Good
1,580 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,667 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,809 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.7

Food

7.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

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

    San Diego (SAN), located 4.2 km from the city centre, is the airport you fly into when you book flights from Montreal to San Diego. 5 airlines have flights to San Diego from Montreal on a regular basis. Booking flights from Montreal to San Diego should not be difficult; the airport handles an average of 0 inbound flights from Montreal per day.

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

    Currently priced at C$ 334, Air Canada will fly you from Montreal to San Diego and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Porter Airlines and United Airlines - these airlines can fly you to your destination from C$ 363 and C$ 365, respectively. Air Canada is currently priced 46% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Montreal to San Diego one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 186. Users have also found prices from C$ 202 and C$ 218 on United Airlines and Air Canada, respectively.

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

    While on average a flight from Montreal to San Diego is generally C$ 340, our data shows the cheapest flight currently is C$ 185. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego), you can expect to pay C$ 337 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 300). Flying from Montreal to San Diego in July is currently the most expensive (average of C$ 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

Travelling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
El Cajon
Borrego Springs

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Fly from Montreal to San Diego on these airlines

Choose from the following airlines for your flight from Montreal to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 17 April 2025.
Air Canada flights from Montreal to San Diego
United Airlines flights from Montreal to San Diego
Delta flights from Montreal to San Diego

Top 5 airlines flying from Montreal to San Diego

Discover the top 5 airlines that operate flights from Montreal to San Diego. 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 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 351AverageC$ 581FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 363AverageC$ 637FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 364AverageC$ 553FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 375AverageC$ 698FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 390AverageC$ 566FlexibilityNo cancel feeOn-timeN/A
Search Delta 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 Diego?

Cheapflights helps you search for flights from Montreal to San Diego via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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

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

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

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

Of course! You can now track prices for flights from Montreal to San Diego 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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