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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 248

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Diego are usually found in December or September, booked 15 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to San Diego
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Sat 5/97:15 a.m.
YUL
-
SAN
1 stop9h 55m
WestJet
Fri 11/93:30 p.m.
SAN
-
YUL
1 stop12h 35m
WestJet
Deal found 19/7C$ 468
Sat 5/95:45 p.m.
YUL
-
SAN
Nonstop5h 54m
Air Canada
Sat 12/91:10 p.m.
SAN
-
YUL
1 stop9h 41m
Air Canada
Deal found 20/7C$ 476
Tue 1/95:45 p.m.
YUL
-
SAN
Nonstop5h 54m
Air Canada
Tue 8/97:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 18/7C$ 482
Sat 5/95:45 p.m.
YUL
-
SAN
Nonstop5h 54m
Air Canada
Fri 11/97:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 18/7C$ 495
Mon 9/1112:45 p.m.
YUL
-
SAN
1 stop12h 07m
Delta
Mon 16/1110:30 p.m.
SAN
-
YUL
1 stop10h 45m
Delta
Deal found 19/7C$ 512
Tue 6/106:35 p.m.
YUL
-
SAN
1 stop18h 42m
United Airlines
Wed 7/101:24 p.m.
SAN
-
YUL
1 stop15h 52m
United Airlines
Deal found 19/7C$ 520
Tue 29/95:45 p.m.
YUL
-
SAN
Nonstop5h 51m
Air Canada
Tue 6/107:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 22/7C$ 527
Thu 24/97:15 a.m.
YUL
-
SAN
1 stop9h 55m
WestJet
Mon 28/93:30 p.m.
SAN
-
YUL
1 stop12h 35m
WestJet
Deal found 22/7C$ 531

Find flight deals from Pierre Elliott Trudeau Intl to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 23 July 2026.

Round-trip from

C$ 468

One-way from

C$ 248

Popular in

March

Cheapest in

December

Average price

C$ 610

Good round-trip deal

C$ 535 or less
WestJet
  • WestJet
  • 5/9-11/9
  • 2 total stops
  • 22h 30m total
  • Montreal to San Diego
Search Deals
WestJet
  • WestJet
  • 16/10
  • 1 total stop
  • 9h 55m total
  • Montreal to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 23 July 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

7:00 a.m.-12:33 p.m.

1 stop8h 33m

San Diego

Mon 30/11

10:30 p.m.-12:15 p.m.

1 stop10h 45m

C$ 568
Quickest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 9/10

5:45 p.m.-8:36 p.m.

Nonstop5h 51m

San Diego

Mon 12/10

5:00 p.m.-6:44 a.m.

1 stop10h 44m

C$ 622

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

7:00 a.m.-5:05 p.m.

1 stop13h 05m

San Diego

Sat 29/8

8:00 a.m.-11:52 p.m.

1 stop12h 52m

C$ 626

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

2:20 p.m.-8:29 p.m.

1 stop9h 09m

San Diego

Mon 12/10

10:30 p.m.-10:40 a.m.

1 stop9h 10m

C$ 678

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 29/12

2:55 p.m.-11:55 p.m.

1 stop12h 00m

San Diego

Mon 1/3

10:30 p.m.-12:15 p.m.

1 stop10h 45m

C$ 681

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

4:55 p.m.-10:10 p.m.

1 stop8h 15m

San Diego

Tue 8/9

5:00 p.m.-10:40 a.m.

2 stops14h 40m

C$ 698

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

6:00 a.m.-2:10 p.m.

1 stop11h 10m

San Diego

Sun 16/8

9:30 p.m.-11:39 a.m.

1 stop11h 09m

C$ 724

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

11:23 a.m.-8:46 p.m.

2 stops12h 23m

San Diego

Sat 8/8

6:27 p.m.-8:16 a.m.

1 stop10h 49m

C$ 727

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

9:45 a.m.-7:55 p.m.

2 stops13h 10m

San Diego

Mon 17/8

12:41 p.m.-8:16 a.m.

1 stop16h 35m

C$ 727
Cheapest one-way

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 24/12

2:55 p.m.-11:55 p.m.

1 stop12h 00m

C$ 297

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/7

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Pierre Elliott Trudeau Intl to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to San Diego

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport to San Diego?

Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 471). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in March is currently the most expensive (average of C$ 715). 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 YUL to SAN?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 23 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego as you normally would.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

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 23 July 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. 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.
Delta
7.8
Good
8,479 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
10,024 reviews
Delta
7.8
Good
8,479 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.1
Good
11,831 reviews
Delta
7.8
Good
8,479 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
11,371 reviews
Delta
7.8
Good
8,479 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl?

    If you book a flight to San Diego from Montreal Pierre Elliott Trudeau Intl, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 4.2 km from the centre of San Diego. There is 1 flight from Montreal Pierre Elliott Trudeau Intl to San Diego per day from 4 different airlines.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego can take about 5h 51m. Delta provides one of the quickest options available for as low as C$ 622. The distance between Montreal Pierre Elliott Trudeau Intl Airport and San Diego is about 3948 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego round-trip?

    Cheapflights users have booked flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego round-trip from C$ 348. Other airlines that can offer you cheap pricing are Air Canada, from C$ 390, and Delta, from C$ 411. Users have found that United Airlines is 43% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at C$ 174. American Airlines flights start at C$ 273 while deals on Air Canada start at C$ 295 one-way.

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

    On average you can expect to pay C$ 773 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The cheapest flight overall is C$ 524 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego) is currently priced at C$ 517.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to San Diego that include hotel bookings?

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to San Diego?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to San Diego?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to San Diego?

    Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 471). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in March is currently the most expensive (average of C$ 715). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

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Fly from Pierre Elliott Trudeau Intl to San Diego on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 23 July 2026.
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to San Diego
United Airlines flights from Montreal Pierre Elliott Trudeau Intl to San Diego

Top 4 airlines flying from Pierre Elliott Trudeau Intl to San Diego

Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 348AverageC$ 586FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 390AverageC$ 663FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 411AverageC$ 583FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 431AverageC$ 433FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to San Diego?

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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to San Diego with no change fees?

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