Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 244

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
3 Aug — 10 Aug1
1 adult

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Diego are usually found in May or December, booked 57 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap 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 29 July 2025.

Round-trip from

C$ 369

One-way from

C$ 244

Popular in

February

Cheapest in

May

Average price

C$ 536

Good round-trip deal

C$ 409 or less
Air Canada
  • Air Canada
  • 4/9-13/9
  • 1 total stop
  • 15h 05m total
  • Montreal to San Diego
Air Canada
  • Air Canada
  • 26/8
  • 1 total stop
  • 9h 35m total
  • Montreal to San Diego
Highest demand for flights based on searches. 9% potential increase in price (C$ 77 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Diego.

Find flight deals from Pierre Elliott Trudeau Intl to San Diego

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 29 July 2025.

Thu 4/94:45 p.m.YUL - SAN
Nonstop5h 50mAir Canada
Sat 13/912:25 p.m.SAN - YUL
1 stop9h 15mAir Canada
Deal found 27/7C$ 369
Thu 4/96:15 a.m.YUL - SAN
2 stops11h 48mUnited Airlines
Sat 13/97:21 p.m.SAN - YUL
1 stop9h 55mUnited Airlines
Deal found 27/7C$ 392
Thu 21/87:00 a.m.YUL - SAN
1 stop9h 20mWestJet
Thu 28/811:15 a.m.SAN - YUL
1 stop10h 28mWestJet
Deal found 28/7C$ 414
Thu 4/912:30 p.m.YUL - SAN
2 stops13h 06mAmerican Airlines
Sat 13/96:20 a.m.SAN - YUL
2 stops13h 12mAmerican Airlines
Deal found 27/7C$ 420
Thu 14/86:45 a.m.YUL - SAN
2 stops13h 13mMultiple Airlines
Thu 28/811:15 a.m.SAN - YUL
1 stop10h 28mMultiple Airlines
Deal found 26/7C$ 461
Sun 24/86:00 a.m.YUL - SAN
1 stop7h 08mDelta
Fri 5/911:23 a.m.SAN - YUL
1 stop8h 45mDelta
Deal found 28/7C$ 472

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 29 July 2025.
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

Pierre Elliott Trudeau Intl

Fly to

San Diego

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

4:45 p.m.-7:35 p.m.

Nonstop5h 50m

San Diego

Sat 13/9

12:25 p.m.-12:40 a.m.

1 stop9h 15m

C$ 369

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

6:15 a.m.-3:03 p.m.

2 stops11h 48m

San Diego

Sat 13/9

7:21 p.m.-8:16 a.m.

1 stop9h 55m

C$ 392

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 21/8

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

1 stop9h 20m

San Diego

Thu 28/8

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

1 stop10h 28m

C$ 414

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

10:38 a.m.-8:20 p.m.

2 stops12h 42m

San Diego

Sat 13/9

10:32 p.m.-1:44 p.m.

1 stop12h 12m

C$ 420

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 14/8

6:45 a.m.-4:58 p.m.

2 stops13h 13m

San Diego

Thu 28/8

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

1 stop10h 28m

C$ 461

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 24/8

6:00 a.m.-10:08 a.m.

1 stop7h 08m

San Diego

Fri 5/9

11:23 a.m.-11:08 p.m.

1 stop8h 45m

C$ 472

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

5:00 a.m.-11:35 a.m.

1 stop9h 35m

C$ 244

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 6/9

6:00 a.m.-10:13 a.m.

1 stop7h 13m

C$ 250

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

5:30 p.m.-1:20 p.m.

1 stop22h 50m

C$ 257

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 20/8

11:23 a.m.-10:28 p.m.

2 stops14h 05m

C$ 263

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 13 results
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to San Diego. Price data was last updated on 25 July 2025.

Booking 57 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, May is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 289). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in September is currently the most expensive (average of C$ 393). 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 29 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

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

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

What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Share of one-stop round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 42% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to San Diego on Cheapflights.

What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of C$ 525.

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Shortest average travel time for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Los Angeles (LAX) have the shortest average one-way travel time for 1-stop routes: 2h 41m.

Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Average layover duration for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 13m.

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 29 July 2025.
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.

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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 6 different airlines.

  • 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$ 369. Other airlines that can offer you cheap pricing are United Airlines, from C$ 392, and WestJet, from C$ 414. Users have found that Air Canada is 32% 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 Air Canada, which is currently one of the cheapest options available, starting at C$ 244. Delta flights start at C$ 250 while deals on WestJet start at C$ 257 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$ 604 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The cheapest flight overall is C$ 365 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego) is currently priced at C$ 410.

  • 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, May is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 289). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in September is currently the most expensive (average of C$ 393). 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
Borrego Springs
El Cajon

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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 29 July 2025.

Top 6 airlines flying from Pierre Elliott Trudeau Intl to San Diego

Discover the top 6 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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 270AverageC$ 403FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 323AverageC$ 461FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 347AverageC$ 575FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 353AverageC$ 612FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 358AverageC$ 439FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 359AverageC$ 518FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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