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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 297

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
26 Nov — 3 Dec1
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 57 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 27 October 2025.

Round-trip from

C$ 532

One-way from

C$ 297

Popular in

November

Cheapest in

May

Average price

C$ 564
Delta
  • Delta
  • 14/1-2/5
  • 2 total stops
  • 24h 23m total
  • Montreal to San Diego
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12/12
  • 12/12
  • 3 total stops
  • 37h 19m total
  • Montreal to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 27 October 2025.

Tue 2/1212:50 p.m.YUL - SAN
1 stop12h 34mDelta
Thu 4/1211:36 a.m.SAN - YUL
1 stop8h 56mDelta
Deal found 27/10C$ 532
Mon 1/124:00 p.m.YUL - SAN
1 stop19h 34mAmerican Airlines
Mon 8/1210:23 p.m.SAN - YUL
1 stop12h 26mAmerican Airlines
Deal found 27/10C$ 536
Mon 1/124:00 p.m.YUL - SAN
1 stop19h 34mAmerican Airlines
Thu 4/126:15 a.m.SAN - YUL
1 stop13h 27mAmerican Airlines
Deal found 27/10C$ 544
Wed 26/1112:59 p.m.YUL - SAN
2 stops11h 53mAmerican Airlines
Wed 3/1210:50 p.m.SAN - YUL
1 stop13h 34mAmerican Airlines
Deal found 27/10C$ 551
Wed 3/129:15 a.m.YUL - SAN
2 stops11h 20mUnited Airlines
Fri 5/129:55 p.m.SAN - YUL
1 stop14h 21mUnited Airlines
Deal found 27/10C$ 553
Thu 27/112:13 p.m.YUL - SAN
1 stop9h 20mUnited Airlines
Wed 3/126:15 a.m.SAN - YUL
2 stops12h 02mUnited Airlines
Deal found 27/10C$ 556
Fri 21/117:10 a.m.YUL - SAN
1 stop8h 56mDelta
Mon 8/1210:30 p.m.SAN - YUL
1 stop10h 05mDelta
Deal found 26/10C$ 561
Thu 27/116:00 a.m.YUL - SAN
1 stop8h 31mMultiple Airlines
Wed 3/1212:40 p.m.SAN - YUL
1 stop10h 13mMultiple Airlines
Deal found 26/10C$ 564
Tue 23/1212:50 p.m.YUL - SAN
1 stop12h 19mDelta
Thu 1/110:20 p.m.SAN - YUL
1 stop10h 39mDelta
Deal found 25/10C$ 568
Sat 6/129:15 a.m.YUL - SAN
2 stops14h 30mUnited Airlines
Sun 14/125:08 p.m.SAN - YUL
1 stop17h 52mUnited Airlines
Deal found 27/10C$ 571

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 27 October 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

Tue 24/2

12:45 p.m.-8:56 p.m.

1 stop11h 11m

San Diego

Wed 25/2

10:30 p.m.-12:20 p.m.

1 stop10h 50m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 6/12

2:59 p.m.-11:35 p.m.

1 stop11h 36m

San Diego

Sun 14/12

10:00 p.m.-12:00 p.m.

1 stop11h 00m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

12:50 p.m.-10:24 p.m.

1 stop12h 34m

San Diego

Tue 16/12

6:15 a.m.-5:25 p.m.

1 stop8h 10m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

6:00 a.m.-2:08 p.m.

1 stop11h 08m

San Diego

Mon 27/4

8:50 a.m.-11:34 p.m.

1 stop11h 44m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

2:45 p.m.-10:47 p.m.

1 stop11h 02m

San Diego

Wed 29/4

8:50 a.m.-11:34 p.m.

1 stop11h 44m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

6:00 a.m.-2:15 p.m.

1 stop11h 15m

San Diego

Wed 3/12

11:05 a.m.-11:59 p.m.

1 stop9h 54m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

12:54 p.m.-7:00 p.m.

1 stop9h 06m

San Diego

Tue 28/4

8:00 a.m.-11:58 p.m.

1 stop12h 58m

C$ 532

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 12/12

1:40 p.m.-11:59 p.m.

3 stops37h 19m

C$ 297

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

6:45 a.m.-5:53 p.m.

2 stops14h 08m

C$ 299

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 9/12

6:45 a.m.-5:53 p.m.

2 stops14h 08m

C$ 299

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 18 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 24 October 2025.

Booking 30 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$ 188). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in September is currently the most expensive (average of C$ 360). 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 27 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 66% 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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 27 October 2025.
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.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Delta
7.9
Good
7,996 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,999 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
11,031 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,367 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 11h 11m. Delta provides one of the quickest options available for as low as C$ 532. The distance between Montreal Pierre Elliott Trudeau Intl Airport and San Diego is about 3948 km.

  • 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$ 285. Other airlines that can offer you cheap pricing are Delta, from C$ 303, and Porter Airlines, from C$ 354. Users have found that American Airlines is 46% cheaper than the other options available to this destination.

  • 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$ 188). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in September is currently the most expensive (average of C$ 360). 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
La Mesa
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 27 October 2025.
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 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 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 285AverageC$ 429FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 303AverageC$ 439FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 354AverageC$ 552FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 359AverageC$ 577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 365AverageC$ 401FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 366AverageC$ 513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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