Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 250

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
20 Feb — 27 Feb1
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 May or August, booked 65 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 21 January 2026.

Thu 19/23:45 p.m.
YUL
-
SAN
1 stop8h 59m
American Airlines
Tue 24/210:35 p.m.
SAN
-
YUL
1 stop13h 29m
American Airlines
Deal found 19/1C$ 527
Wed 18/212:59 p.m.
YUL
-
SAN
1 stop12h 00m
American Airlines
Mon 23/210:35 p.m.
SAN
-
YUL
1 stop13h 29m
American Airlines
Deal found 19/1C$ 541
Tue 19/55:45 p.m.
YUL
-
SAN
Nonstop5h 58m
Air Canada
Fri 22/57:00 a.m.
SAN
-
YUL
Nonstop5h 31m
Air Canada
Deal found 20/1C$ 565
Wed 25/38:00 a.m.
YUL
-
SAN
1 stop30h 46m
Multiple Airlines
Tue 31/32:08 p.m.
SAN
-
YUL
2 stops31h 30m
Multiple Airlines
Deal found 19/1C$ 568
Thu 8/103:00 p.m.
YUL
-
SAN
1 stop11h 25m
Delta
Tue 13/108:50 a.m.
SAN
-
YUL
1 stop11h 47m
Delta
Deal found 19/1C$ 571
Wed 25/312:50 p.m.
YUL
-
SAN
1 stop13h 09m
Delta
Tue 31/310:10 p.m.
SAN
-
YUL
1 stop10h 49m
Delta
Deal found 20/1C$ 572
Fri 27/37:00 a.m.
YUL
-
SAN
1 stop12h 31m
Delta
Tue 7/49:55 p.m.
SAN
-
YUL
1 stop10h 42m
Delta
Deal found 21/1C$ 574
Sun 22/27:12 a.m.
YUL
-
SAN
1 stop16h 55m
American Airlines
Mon 2/310:35 p.m.
SAN
-
YUL
1 stop13h 29m
American Airlines
Deal found 19/1C$ 577
Thu 12/27:12 a.m.
YUL
-
SAN
1 stop14h 57m
American Airlines
Mon 16/210:35 p.m.
SAN
-
YUL
1 stop13h 29m
American Airlines
Deal found 19/1C$ 583
Thu 8/104:50 p.m.
YUL
-
SAN
Nonstop5h 53m
Air Canada
Mon 12/108:10 a.m.
SAN
-
YUL
Nonstop5h 29m
Air Canada
Deal found 19/1C$ 585
Sat 2/55:45 p.m.
YUL
-
SAN
Nonstop5h 58m
Air Canada
Wed 6/58:15 a.m.
SAN
-
YUL
1 stop9h 42m
Air Canada
Deal found 20/1C$ 586

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 21 January 2026.

Round-trip from

C$ 527

One-way from

C$ 256

Popular in

November

Cheapest in

May

Average price

C$ 571

Good round-trip deal

C$ 319 or less
American Airlines
  • American Airlines
  • 19/2-24/2
  • 2 total stops
  • 22h 28m total
  • Montreal to San Diego
4/3
  • 4/3
  • 3 total stops
  • 33h 58m total
  • Montreal to San Diego
Highest demand for flights based on searches. 6% potential increase in price (C$ 50 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Diego.

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 21 January 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

Pierre Elliott Trudeau Intl

Fly to

San Diego

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

12:59 p.m.-9:59 p.m.

1 stop12h 00m

San Diego

Mon 23/2

10:35 p.m.-3:04 p.m.

1 stop13h 29m

C$ 541

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

12:42 p.m.-11:09 p.m.

1 stop13h 27m

San Diego

Tue 7/4

10:30 p.m.-11:37 a.m.

1 stop10h 07m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

12:46 p.m.-6:39 p.m.

1 stop8h 53m

San Diego

Wed 22/4

9:45 p.m.-11:41 a.m.

1 stop10h 56m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

7:00 a.m.-4:31 p.m.

1 stop12h 31m

San Diego

Mon 13/4

6:15 a.m.-4:15 p.m.

1 stop7h 00m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 27/3

7:00 a.m.-4:31 p.m.

1 stop12h 31m

San Diego

Wed 1/4

10:10 p.m.-11:59 a.m.

1 stop10h 49m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

2:40 p.m.-8:53 p.m.

1 stop9h 13m

San Diego

Mon 2/3

10:20 p.m.-11:25 a.m.

1 stop10h 05m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

7:00 a.m.-1:28 p.m.

1 stop9h 28m

San Diego

Mon 27/4

10:30 p.m.-11:41 a.m.

1 stop10h 11m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

12:30 p.m.-10:48 p.m.

1 stop13h 18m

San Diego

Mon 23/3

10:30 p.m.-11:37 a.m.

1 stop10h 07m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 7/3

12:52 p.m.-6:16 p.m.

1 stop8h 24m

San Diego

Sat 14/3

10:30 p.m.-11:37 a.m.

1 stop10h 07m

C$ 572

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 27/3

7:00 a.m.-4:31 p.m.

1 stop12h 31m

San Diego

Tue 7/4

9:55 p.m.-11:37 a.m.

1 stop10h 42m

C$ 574

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 22 results
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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 16 January 2026.

Booking 65 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, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 185). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in December is currently the most expensive (average of C$ 423). 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.

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 21 January 2026.
Read reviews from past customers who have flown Porter Airlines,Delta, andUnited 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.

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

7.9

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 are 0 flights from Montreal Pierre Elliott Trudeau Intl to San Diego per day from 6 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 12h. American Airlines provides one of the quickest options available for as low as C$ 541. 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$ 271. Other airlines that can offer you cheap pricing are Delta, from C$ 272, and American Airlines, from C$ 272. Users have found that WestJet is 45% 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$ 170. Air Canada flights start at C$ 221 while deals on Delta start at C$ 235 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$ 421 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The cheapest flight overall is C$ 319 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego) is currently priced at C$ 525.

  • 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, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego (average of C$ 185). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in December is currently the most expensive (average of C$ 423). 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 21 January 2026.

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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 271AverageC$ 396FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 272AverageC$ 451FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 272AverageC$ 423FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 317AverageC$ 554FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 340AverageC$ 498FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 342AverageC$ 471FlexibilityNo cancel feeOn-time52%
Search Porter 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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