Use YULExpress to pre-book security fast track up to 72 hours before departure for a smoother experience.
$203+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to San Diego (SAN)
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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAN
Dec 5 — Dec 121
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Pierre Elliott Trudeau Intl to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Wednesday or Friday and return on a Tuesday
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 November 5, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $361 (American Airlines) |
One-way from | $203 (Kiwi.com) |
Popular in | November |
Cheapest in | May |
Average price | $470 |
Find flight deals from Pierre Elliott Trudeau Intl to San Diego
Cheapest flights from Pierre Elliott Trudeau Intl to San DiegoExplore 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 November 5, 2025.
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 November 5, 2025.
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:59 pmYUL - SAN
1 stop9h 19mDelta
Fri 12/1210:00 pmSAN - YUL
1 stop11h 00mDelta
Deal found 11/4![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:10 amYUL - SAN
1 stop8h 59mDelta
Wed 12/1011:05 amSAN - YUL
1 stop9h 54mDelta
Deal found 11/4![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amYUL - SAN
1 stop11h 12mDelta
Thu 12/1112:24 pmSAN - YUL
1 stop8h 35mDelta
Deal found 11/3![Delta logo]()
$380
This American Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:30 amYUL - SAN
1 stop17h 14mAmerican Airlines
Sun 12/146:15 amSAN - YUL
1 stop13h 27mAmerican Airlines
Deal found 11/5![American Airlines logo]()
$381
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:29 pmYUL - SAN
1 stop9h 28mAmerican Airlines
Thu 12/116:30 amSAN - YUL
1 stop13h 29mAmerican Airlines
Deal found 11/3![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:45 pmYUL - SAN
1 stop8h 45mUnited Airlines
Fri 12/125:23 pmSAN - YUL
2 stops17h 37mUnited Airlines
Deal found 11/4![United Airlines logo]()
$393
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amYUL - SAN
2 stops14h 46mUnited Airlines
Thu 12/256:15 amSAN - YUL
2 stops12h 02mUnited Airlines
Deal found 11/3![United Airlines logo]()
$395
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 2,558,603 searches. Data last updated November 5, 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
Sat 12/6
2:59 pm-9:18 pm
1 stop9h 19m
San Diego
Fri 12/12
10:00 pm-12:00 pm
1 stop11h 00m
$378
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 1/22
12:54 pm-7:03 pm
1 stop9h 09m
San Diego
Sun 1/25
6:30 am-4:57 pm
1 stop7h 27m
$378
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 12/6
6:00 am-2:12 pm
1 stop11h 12m
San Diego
Sun 12/14
10:00 pm-12:00 pm
1 stop11h 00m
$379
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 12/4
7:10 am-1:09 pm
1 stop8h 59m
San Diego
Wed 12/10
11:05 am-11:59 pm
1 stop9h 54m
$379
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 1/13
2:45 pm-10:47 pm
1 stop11h 02m
San Diego
Wed 4/29
8:50 am-11:34 pm
1 stop11h 44m
$380
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 1/20
12:54 pm-10:33 pm
1 stop12h 39m
San Diego
Tue 3/10
9:40 pm-11:44 am
1 stop11h 04m
$380
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 1/14
12:54 pm-7:00 pm
1 stop9h 06m
San Diego
Tue 4/28
8:50 am-11:34 pm
1 stop11h 44m
$380
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 12/4
7:10 am-11:59 pm
2 stops19h 49m
San Diego
Thu 12/11
6:15 am-5:25 pm
1 stop8h 10m
$384
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 1/26
4:47 pm-8:50 am
2 stops19h 03m
San Diego
Thu 1/29
10:00 pm-12:04 pm
1 stop11h 04m
$385
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 12/6
7:14 am-6:25 pm
2 stops14h 11m
San Diego
Sun 12/14
6:15 am-10:42 pm
1 stop13h 27m
$392
Showing 1-10 of 21 results
Compare providers for flights from Pierre Elliott Trudeau Intl to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to San Diego in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 October 31, 2025.
The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 $134). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in September is currently the most expensive (average of $257). 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 November 5, 2025.
A simple way to save on the total cost of your ticket is to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in the afternoon. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight at noon.
The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Montreal Pierre Elliott Trudeau Intl Airport to San Diego trip
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 November 5, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Pierre Elliott Trudeau Intl to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
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 2,558,603 searches. Data last updated November 5, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$417 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$263 | Average$388 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$271 | Average$415 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$293 | Average$401 | FlexibilityNo cancel fee | On-timeN/A |