Cheap flights from Montreal to San Diego from C$ 279
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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAN
22 Jan — 29 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to San Diego are usually found in January or March, booked 34 days in advance, depart on a Monday or Thursday and return on a Wednesday
Cheap flight deals from Montreal to San Diego
Enter your travel dates to find the best prices.
Cheapest flights from Montreal to San Diego
Explore the most affordable flight options available from Montreal to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.
Fri 26/122:40 p.m.YUL - SAN
1 stop12h 15mDelta
Sun 4/110:20 p.m.SAN - YUL
1 stop10h 44mDelta
Deal found 21/12C$ 1,074
Sat 27/123:50 p.m.YUL - SAN
2 stops19h 43mAmerican Airlines
Fri 9/112:40 p.m.SAN - YUL
1 stop22h 05mAmerican Airlines
Deal found 21/12C$ 1,158
Sat 27/1212:59 p.m.YUL - SAN
1 stop11h 49mAmerican Airlines
Sat 10/17:00 a.m.SAN - YUL
1 stop12h 44mAmerican Airlines
Deal found 21/12C$ 1,169
Fri 26/122:40 p.m.YUL - SAN
1 stop12h 15mDelta
Wed 31/124:15 p.m.SAN - YUL
2 stops16h 43mDelta
Deal found 21/12C$ 1,185
Sat 27/127:08 a.m.YUL - SAN
2 stops19h 51mAmerican Airlines
Mon 29/126:20 a.m.SAN - YUL
1 stop13h 38mAmerican Airlines
Deal found 22/12C$ 1,190
Wed 24/127:00 a.m.YUL - SAN
1 stop10h 32mDelta
Thu 1/110:20 p.m.SAN - YUL
1 stop10h 39mDelta
Deal found 22/12C$ 1,199
Wed 31/126:00 p.m.YUL - SAN
1 stop20h 05mUnited Airlines
Wed 7/18:37 p.m.SAN - YUL
2 stops17h 21mUnited Airlines
Deal found 21/12C$ 1,236
Fri 26/122:40 p.m.YUL - SAN
1 stop12h 15mDelta
Sat 3/110:20 p.m.SAN - YUL
1 stop10h 39mDelta
Deal found 21/12C$ 1,242
Sat 27/122:40 p.m.YUL - SAN
1 stop12h 15mDelta
Sun 4/110:20 p.m.SAN - YUL
1 stop10h 44mDelta
Deal found 21/12C$ 1,253
Mon 22/123:51 p.m.YUL - SAN
2 stops11h 08mAmerican Airlines
Fri 2/110:48 p.m.SAN - YUL
1 stop13h 36mAmerican Airlines
Deal found 22/12C$ 1,256
Sat 27/127:08 a.m.YUL - SAN
2 stops19h 51mAmerican Airlines
Sun 28/126:15 a.m.SAN - YUL
2 stops13h 24mAmerican Airlines
Deal found 22/12C$ 1,273
Best flights from Montreal to San Diego
Discover carefully curated flight deals from Montreal to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 23 December 2025.
Fri 6/27:30 a.m.YUL - SAN
1 stop18h 28mAmerican Airlines
Fri 13/23:23 p.m.SAN - YUL
1 stop20h 46mAmerican Airlines
Deal found 22/12C$ 519
Mon 16/312:42 p.m.YUL - SAN
1 stop13h 27mDelta
Fri 20/310:10 p.m.SAN - YUL
1 stop10h 49mDelta
Deal found 22/12C$ 540
Fri 8/512:45 p.m.YUL - SAN
1 stop13h 13mDelta
Thu 14/58:00 a.m.SAN - YUL
1 stop12h 58mDelta
Deal found 22/12C$ 540
Mon 2/312:52 p.m.YUL - SAN
1 stop13h 10mDelta
Mon 9/39:55 p.m.SAN - YUL
1 stop10h 42mDelta
Deal found 21/12C$ 540
Mon 4/512:46 p.m.YUL - SAN
1 stop13h 24mDelta
Mon 11/59:40 p.m.SAN - YUL
1 stop11h 07mDelta
Deal found 22/12C$ 540
Sun 3/512:46 p.m.YUL - SAN
1 stop13h 24mDelta
Sun 10/58:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 22/12C$ 540
Wed 6/512:46 p.m.YUL - SAN
1 stop13h 24mDelta
Thu 14/58:00 a.m.SAN - YUL
1 stop12h 58mDelta
Deal found 22/12C$ 540
Wed 29/46:00 a.m.YUL - SAN
1 stop7h 29mDelta
Sun 3/59:45 p.m.SAN - YUL
1 stop10h 56mDelta
Deal found 20/12C$ 540
Wed 6/56:00 a.m.YUL - SAN
1 stop11h 04mDelta
Tue 12/58:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 22/12C$ 540
Tue 5/512:46 p.m.YUL - SAN
1 stop11h 01mDelta
Fri 8/59:40 p.m.SAN - YUL
1 stop11h 07mDelta
Deal found 22/12C$ 540
Wed 22/46:00 a.m.YUL - SAN
1 stop11h 04mDelta
Mon 27/49:45 p.m.SAN - YUL
1 stop10h 56mDelta
Deal found 21/12C$ 540
Thu 7/512:45 p.m.YUL - SAN
1 stop11h 59mDelta
Mon 11/58:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 22/12C$ 540
Direct flights from Montreal to San Diego
Explore direct flight options from Montreal to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 December 2025.
Sun 3/55:45 p.m.YUL - SAN
Nonstop5h 58mAir Canada
Sat 9/57:00 a.m.SAN - YUL
Nonstop5h 31mAir Canada
Deal found 22/12C$ 553
Fri 19/65:45 p.m.YUL - SAN
Nonstop5h 54mAir Canada
Tue 23/67:00 a.m.SAN - YUL
Nonstop5h 33mAir Canada
Deal found 22/12C$ 1,075
Last-minute flights from Montreal to San Diego
Discover last-minute flight deals from Montreal to San Diego. Data last updated 23 December 2025 and is based on user searches.
Mon 12/18:00 a.m.YUL - SAN
1 stop29h 53mMultiple Airlines
Thu 22/12:56 p.m.SAN - YUL
2 stops22h 31mMultiple Airlines
Deal found 22/12C$ 570
Mon 12/16:45 a.m.YUL - SAN
2 stops29h 47mMultiple Airlines
Wed 21/112:35 p.m.SAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 22/12C$ 574
Wed 14/16:45 a.m.YUL - SAN
2 stops30h 23mMultiple Airlines
Wed 21/112:35 p.m.SAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 22/12C$ 551
Wed 14/18:00 a.m.YUL - SAN
1 stop29h 53mMultiple Airlines
Thu 22/12:56 p.m.SAN - YUL
2 stops22h 31mMultiple Airlines
Deal found 22/12C$ 567
Thu 15/16:45 a.m.YUL - SAN
2 stops28h 36mMultiple Airlines
Wed 21/112:35 p.m.SAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 22/12C$ 533
Sat 17/16:45 a.m.YUL - SAN
2 stops28h 36mMultiple Airlines
Wed 21/112:35 p.m.SAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 22/12C$ 556
Thu 22/11:02 p.m.YUL - SAN
1 stop8h 59mDelta
Sun 25/111:43 a.m.SAN - YUL
1 stop8h 29mDelta
Deal found 22/12C$ 540
Thu 22/17:30 a.m.YUL - SAN
2 stops14h 42mAmerican Airlines
Sat 24/110:45 p.m.SAN - YUL
1 stop12h 00mAmerican Airlines
Deal found 21/12C$ 558
Thu 22/12:13 p.m.YUL - SAN
1 stop9h 34mUnited Airlines
Sun 25/16:55 p.m.SAN - YUL
2 stops17h 21mUnited Airlines
Deal found 22/12C$ 560
Thu 22/16:45 a.m.YUL - SAN
2 stops13h 18mMultiple Airlines
Wed 4/212:35 p.m.SAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 20/12C$ 569
Sat 24/112:59 p.m.YUL - SAN
1 stop12h 59mAmerican Airlines
Wed 28/16:15 a.m.SAN - YUL
2 stops13h 44mAmerican Airlines
Deal found 22/12C$ 559
Sat 24/16:00 a.m.YUL - SAN
1 stop8h 53mAir Canada
Wed 28/112:40 p.m.SAN - YUL
1 stop10h 13mAir Canada
Deal found 21/12C$ 571
One-way flights from Montreal to San Diego
Search for one-way flight options from Montreal to San Diego. Find affordable one-way fares based on user searches. Data last updated 23 December 2025.
Wed 4/28:00 a.m.YUL - SAN
3 stops43h 08mMultiple Airlines
Deal found 21/12C$ 279
Thu 8/16:45 a.m.YUL - SAN
3 stops19h 51mMultiple Airlines
Deal found 21/12C$ 306
Wed 25/312:42 p.m.YUL - SAN
1 stop10h 54mDelta
Deal found 21/12C$ 311
Sat 24/13:50 p.m.YUL - SAN
1 stop9h 36mAmerican Airlines
Deal found 22/12C$ 314
Wed 25/39:00 a.m.YUL - SAN
1 stop11h 24mAir Canada
Deal found 23/12C$ 317
Tue 20/19:15 a.m.YUL - SAN
2 stops16h 50mUnited Airlines
Deal found 21/12C$ 322
Wed 25/32:25 p.m.YUL - SAN
2 stops12h 40mAmerican Airlines
Deal found 23/12C$ 332
Tue 6/15:25 p.m.YUL - SAN
3 stops31h 32mMultiple Airlines
Deal found 21/12C$ 337
Wed 7/14:35 p.m.YUL - SAN
2 stops23h 54mMultiple Airlines
Deal found 21/12C$ 350
Tue 20/112:50 p.m.YUL - SAN
1 stop12h 55mDelta
Deal found 22/12C$ 359
Find flight deals from Montreal to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 23 December 2025.
Customize your flight search to find flights from Montreal 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 23 December 2025.
Use the filters below to find and compare flights from Montreal to San Diego that are best for you.
Fly from
Montreal
Fly to
San Diego
Route
Depart
Return
Price
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Fri 6/2
7:30 a.m.-10:58 p.m.
1 stop18h 28m
San Diego
Fri 13/2
3:23 p.m.-3:09 p.m.
1 stop20h 46m
C$ 519
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 16/3
12:42 p.m.-11:09 p.m.
1 stop13h 27m
San Diego
Fri 20/3
10:10 p.m.-11:59 a.m.
1 stop10h 49m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Fri 8/5
12:45 p.m.-10:58 p.m.
1 stop13h 13m
San Diego
Thu 14/5
8:00 a.m.-11:58 p.m.
1 stop12h 58m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 2/3
12:52 p.m.-11:02 p.m.
1 stop13h 10m
San Diego
Mon 9/3
9:55 p.m.-11:37 a.m.
1 stop10h 42m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 4/5
12:46 p.m.-11:10 p.m.
1 stop13h 24m
San Diego
Mon 11/5
9:40 p.m.-11:47 a.m.
1 stop11h 07m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sun 3/5
12:46 p.m.-11:10 p.m.
1 stop13h 24m
San Diego
Sun 10/5
8:50 a.m.-11:34 p.m.
1 stop11h 44m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 6/5
12:46 p.m.-11:10 p.m.
1 stop13h 24m
San Diego
Thu 14/5
8:00 a.m.-11:58 p.m.
1 stop12h 58m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 29/4
6:00 a.m.-10:29 a.m.
1 stop7h 29m
San Diego
Sun 3/5
9:45 p.m.-11:41 a.m.
1 stop10h 56m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 6/5
6:00 a.m.-2:04 p.m.
1 stop11h 04m
San Diego
Tue 12/5
8:50 a.m.-11:34 p.m.
1 stop11h 44m
C$ 540
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 5/5
12:46 p.m.-8:47 p.m.
1 stop11h 01m
San Diego
Fri 8/5
9:40 p.m.-11:47 a.m.
1 stop11h 07m
C$ 540
Flights are sorted by cheapest round-trip flights first.
Deals found on 21/12
Showing 1-10 of 21 results
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Best time to book a flight from Montreal to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Montreal 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 to San Diego
How far ahead should I book a flight from Montreal to San Diego?
Use this chart to determine the optimal time to book a round-trip flight from Montreal to San Diego. Price data was last updated on 19 December 2025.
Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal 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 to San Diego?
Currently, April is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 184). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 354). 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 YMQ to SAN?
Find hourly flight availability from Montreal 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 23 December 2025.
One of the essential ways to save on airfare from Montreal to San Diego is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 66% on airfare.
What is the cheapest day to fly from Montreal to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Montreal to San Diego. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Montreal to San Diego flight should consider departing on Monday 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.
What’s the top layover airport for flights from Montreal to San Diego?
Share of one-stop round-trip flights from Montreal 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 47% of one-stop itineraries from Montreal to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Montreal to San Diego?
Average round-trip fare for 1-stop flights from Montreal to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of C$ 422.
What’s the fastest layover option from Montreal to San Diego?
Shortest average travel time for 1-stop one-way flights from Montreal to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 57m.
Which airport typically offers the quickest layover for flights from Montreal to San Diego?
Average layover duration for 1-stop one-way flights from Montreal 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 0h 58m.
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 23 December 2025.
Check out reviews from past customers who have flown with Porter Airlines,Delta, andUnited Airlines from Montreal to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
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 Montreal 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?
San Diego (SAN), located 4.2 km from the city centre, is the airport you fly into when you book flights from Montreal to San Diego. 6 airlines have flights to San Diego from Montreal on a regular basis. Booking flights from Montreal to San Diego should not be difficult; the airport handles an average of 0 inbound flights from Montreal per day.
How long is the flight from Montreal to San Diego?
Departing from Montreal to San Diego will take you 13h 27m. Montreal and San Diego are separated by a distance of 3948 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Montreal to San Diego round-trip?
Currently priced at C$ 269, WestJet will fly you from Montreal to San Diego and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from C$ 271 and C$ 271, respectively. WestJet is currently priced 47% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Montreal to San Diego one-way?
For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 220. Users have also found prices from C$ 224 and C$ 238 on United Airlines and Delta, respectively.
What are the cheapest flights from Montreal to San Diego?
While on average a flight from Montreal to San Diego is generally C$ 582, our data shows the cheapest flight currently is C$ 533. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego), you can expect to pay C$ 520 for that flight.
Can I find deals for business class flights from Montreal to San Diego?
Yes. Cheapflights offers flight deals from Montreal 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 to San Diego?
Currently, April is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 184). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 354). 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.
Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs
Browse thousands of different options on Cheapflights for your next trip
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Fly from Montreal to San Diego on these airlines
Choose from the following airlines for your flight from Montreal to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 23 December 2025.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 23 December 2025.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 23 December 2025.
Discover the top 6 airlines that operate flights from Montreal 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 23 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Montreal to San Diego?
Cheapflights helps you search for flights from Montreal to San Diego via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Montreal to San Diego?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Montreal to San Diego for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Montreal to San Diego with no change fees?
Yes! Cheapflights helps users easily find flights from Montreal to San Diego with no change fees.
Can Cheapflights notify me if prices for flights from Montreal to San Diego become cheaper?
Of course! You can now track prices for flights from Montreal to San Diego and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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