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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 282

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
17 Jun — 24 Jun1
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 August, booked 30 days in advance, depart on a Sunday or Monday and return on a Tuesday

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 18 May 2026.

Wed 23/99:45 a.m.
YUL
-
SAN
2 stops14h 00m
United Airlines
Sat 26/95:00 p.m.
SAN
-
YUL
2 stops12h 16m
United Airlines
Deal found 14/5C$ 451
Tue 15/95:45 p.m.
YUL
-
SAN
Nonstop5h 51m
Air Canada
Sun 20/97:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 13/5C$ 467
Mon 21/97:15 a.m.
YUL
-
SAN
1 stop9h 55m
WestJet
Tue 29/93:30 p.m.
SAN
-
YUL
1 stop12h 35m
WestJet
Deal found 16/5C$ 481
Tue 22/97:15 a.m.
YUL
-
SAN
1 stop9h 55m
WestJet
Tue 29/93:30 p.m.
SAN
-
YUL
1 stop12h 35m
WestJet
Deal found 16/5C$ 484
Fri 16/106:35 p.m.
YUL
-
SAN
1 stop8h 54m
United Airlines
Sat 24/105:00 p.m.
SAN
-
YUL
2 stops12h 16m
United Airlines
Deal found 13/5C$ 499
Fri 4/95:45 p.m.
YUL
-
SAN
Nonstop5h 54m
Air Canada
Tue 8/97:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 17/5C$ 511
Thu 8/105:45 p.m.
YUL
-
SAN
Nonstop5h 51m
Air Canada
Mon 12/107:00 a.m.
SAN
-
YUL
Nonstop5h 27m
Air Canada
Deal found 15/5C$ 514
Wed 23/96:00 a.m.
YUL
-
SAN
1 stop7h 46m
Delta
Sat 26/98:00 a.m.
SAN
-
YUL
1 stop12h 56m
Delta
Deal found 17/5C$ 518
Mon 19/106:00 a.m.
YUL
-
SAN
1 stop11h 11m
Delta
Sat 24/1010:30 p.m.
SAN
-
YUL
1 stop10h 45m
Delta
Deal found 13/5C$ 532

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 18 May 2026.

Round-trip from

C$ 451

One-way from

C$ 282

Popular in

March

Cheapest in

December

Average price

C$ 532

Good round-trip deal

C$ 554 or less
United Airlines
  • United Airlines
  • 23/9-26/9
  • 4 total stops
  • 26h 16m total
  • Montreal to San Diego
Search Deals
Air Canada
  • Air Canada
  • 19/9
  • Nonstop
  • 5h 51m total
  • Montreal to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 18 May 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

Tue 15/9

6:00 a.m.-5:26 p.m.

2 stops14h 26m

San Diego

Sun 20/9

6:20 a.m.-10:06 p.m.

2 stops12h 46m

C$ 499

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 23/9

6:00 a.m.-10:46 a.m.

1 stop7h 46m

San Diego

Sat 26/9

8:00 a.m.-11:56 p.m.

1 stop12h 56m

C$ 518

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 23/9

6:10 a.m.-5:26 p.m.

2 stops14h 16m

San Diego

Sat 26/9

9:20 p.m.-1:09 p.m.

1 stop12h 49m

C$ 518
Quickest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 13/6

6:10 a.m.-11:21 a.m.

1 stop8h 11m

San Diego

Mon 6/7

8:32 p.m.-10:40 a.m.

2 stops11h 08m

C$ 566

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

12:47 p.m.-10:01 p.m.

1 stop12h 14m

San Diego

Mon 3/8

10:30 p.m.-11:39 a.m.

1 stop10h 09m

C$ 573

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

6:00 a.m.-10:23 a.m.

1 stop7h 23m

San Diego

Mon 8/6

8:00 a.m.-11:55 p.m.

1 stop12h 55m

C$ 587

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 25/6

12:48 p.m.-11:00 p.m.

1 stop13h 12m

San Diego

Mon 13/7

10:30 p.m.-11:39 a.m.

1 stop10h 09m

C$ 612

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 17/6

6:00 a.m.-2:12 p.m.

1 stop11h 12m

San Diego

Wed 24/6

8:00 a.m.-11:55 p.m.

1 stop12h 55m

C$ 624

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

6:00 a.m.-2:12 p.m.

1 stop11h 12m

San Diego

Sun 12/7

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

1 stop12h 52m

C$ 637

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

12:48 p.m.-11:00 p.m.

1 stop13h 12m

San Diego

Wed 15/7

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

1 stop12h 52m

C$ 642

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/5

Showing 1-10 of 22 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 29 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$ 461). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in March is currently the most expensive (average of C$ 689). 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 18 May 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 18 May 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
7.9
Good
8,447 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.8

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
7.9
Good
8,447 reviews
Delta
7.9
Good
8,447 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.8

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
9,737 reviews
Delta
7.9
Good
8,447 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.8

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
11,650 reviews
Delta
7.9
Good
8,447 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.8

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
11,060 reviews
Delta
7.9
Good
8,447 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.8

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 7h 46m. United Airlines provides one of the quickest options available for as low as C$ 518. 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$ 270. Other airlines that can offer you cheap pricing are American Airlines, from C$ 271, and Air Canada, from C$ 328. Users have found that Delta is 52% 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$ 169. American Airlines flights start at C$ 266 while deals on Delta start at C$ 269 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$ 650 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The cheapest flight overall is C$ 455 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego) is currently priced at C$ 518.

  • 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$ 461). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in March is currently the most expensive (average of C$ 689). 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 18 May 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 18 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 270AverageC$ 504FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 271AverageC$ 422FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 328AverageC$ 600FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 358AverageC$ 523FlexibilityNo cancel feeOn-time69%
Search United 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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