Cheap flights from Montreal to San Diego from C$ 269
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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAN
24 Dec — 31 Dec1
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 Tuesday or Monday and return on a Wednesday
Find 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 24 November 2025.
Mon 15/127:00 a.m.YUL - SAN
2 stops19h 59mDelta
Wed 17/126:15 a.m.SAN - YUL
2 stops14h 32mDelta
Deal found 23/11C$ 550
Sun 14/124:35 p.m.YUL - SAN
1 stop20h 13mMultiple Airlines
Sun 11/12:50 p.m.SAN - YUL
2 stops13h 15mMultiple Airlines
Deal found 23/11C$ 564
Sun 14/126:00 a.m.YUL - SAN
2 stops20h 42mUnited Airlines
Sun 11/11:51 p.m.SAN - YUL
2 stops20h 37mUnited Airlines
Deal found 23/11C$ 602
Wed 31/1212:59 p.m.YUL - SAN
2 stops22h 49mAmerican Airlines
Sat 10/12:01 p.m.SAN - YUL
1 stop22h 07mAmerican Airlines
Deal found 23/11C$ 606
Wed 31/1212:59 p.m.YUL - SAN
2 stops22h 49mAmerican Airlines
Thu 8/11:58 p.m.SAN - YUL
1 stop22h 10mAmerican Airlines
Deal found 23/11C$ 639
Fri 19/127:08 a.m.YUL - SAN
1 stop16h 54mAmerican Airlines
Tue 30/124:25 p.m.SAN - YUL
2 stops19h 45mAmerican Airlines
Deal found 23/11C$ 654
Sat 6/127:14 a.m.YUL - SAN
2 stops14h 11mAmerican Airlines
Sun 14/1210:45 p.m.SAN - YUL
1 stop10h 35mAmerican Airlines
Deal found 22/11C$ 671
Fri 19/127:08 a.m.YUL - SAN
1 stop16h 54mAmerican Airlines
Mon 29/1210:48 p.m.SAN - YUL
1 stop21h 10mAmerican Airlines
Deal found 23/11C$ 691
Sat 6/122:59 p.m.YUL - SAN
1 stop11h 36mDelta
Sun 14/1210:30 p.m.SAN - YUL
1 stop10h 05mDelta
Deal found 22/11C$ 694
Mon 15/1210:30 p.m.YUL - SAN
1 stop16h 23mAir Canada
Wed 17/1212:40 p.m.SAN - YUL
1 stop8h 52mAir Canada
Deal found 23/11C$ 711
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 24 November 2025.
Fri 20/212:59 p.m.YUL - SAN
2 stops14h 00mAmerican Airlines
Sun 22/23:23 p.m.SAN - YUL
1 stop20h 42mAmerican Airlines
Deal found 22/11C$ 519
Wed 7/17:00 a.m.YUL - SAN
1 stop13h 39mDelta
Fri 20/310:10 p.m.SAN - YUL
1 stop10h 47mDelta
Deal found 23/11C$ 533
Wed 7/17:00 a.m.YUL - SAN
1 stop13h 39mDelta
Mon 23/310:30 p.m.SAN - YUL
1 stop10h 02mDelta
Deal found 23/11C$ 533
Sat 17/12:40 p.m.YUL - SAN
1 stop9h 11mDelta
Sun 25/111:43 a.m.SAN - YUL
1 stop8h 29mDelta
Deal found 22/11C$ 533
Wed 1/412:42 p.m.YUL - SAN
1 stop9h 09mDelta
Tue 7/410:30 p.m.SAN - YUL
1 stop10h 07mDelta
Deal found 23/11C$ 533
Sat 7/212:50 p.m.YUL - SAN
1 stop9h 01mDelta
Sat 14/210:05 p.m.SAN - YUL
1 stop10h 57mDelta
Deal found 22/11C$ 533
Tue 13/112:54 p.m.YUL - SAN
1 stop9h 04mDelta
Wed 29/48:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 22/11C$ 533
Thu 15/112:54 p.m.YUL - SAN
1 stop12h 37mDelta
Sat 24/110:00 p.m.SAN - YUL
1 stop11h 04mDelta
Deal found 22/11C$ 533
Sat 17/12:45 p.m.YUL - SAN
1 stop11h 00mDelta
Fri 23/110:00 p.m.SAN - YUL
1 stop11h 12mDelta
Deal found 22/11C$ 533
Wed 14/12:40 p.m.YUL - SAN
1 stop9h 11mDelta
Tue 28/48:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 23/11C$ 533
Wed 7/17:00 a.m.YUL - SAN
1 stop13h 39mDelta
Sat 21/310:10 p.m.SAN - YUL
1 stop10h 47mDelta
Deal found 23/11C$ 533
Thu 15/112:54 p.m.YUL - SAN
1 stop12h 37mDelta
Sun 25/16:30 a.m.SAN - YUL
1 stop7h 25mDelta
Deal found 22/11C$ 533
Last-minute flights from Montreal to San Diego
Discover last-minute flight deals from Montreal to San Diego. Data last updated 24 November 2025 and is based on user searches.
Sat 6/127:14 a.m.YUL - SAN
2 stops14h 11mAmerican Airlines
Sun 14/1210:45 p.m.SAN - YUL
1 stop10h 35mAmerican Airlines
Deal found 22/11C$ 671
Sat 6/122:59 p.m.YUL - SAN
1 stop11h 36mDelta
Sun 14/1210:30 p.m.SAN - YUL
1 stop10h 05mDelta
Deal found 22/11C$ 694
Sun 14/124:35 p.m.YUL - SAN
1 stop20h 13mMultiple Airlines
Sun 11/12:50 p.m.SAN - YUL
2 stops13h 15mMultiple Airlines
Deal found 23/11C$ 564
Sun 14/126:00 a.m.YUL - SAN
1 stop8h 30mUnited Airlines
Sun 11/110:00 p.m.SAN - YUL
1 stop18h 48mUnited Airlines
Deal found 23/11C$ 602
Mon 15/127:00 a.m.YUL - SAN
2 stops19h 59mDelta
Wed 17/126:15 a.m.SAN - YUL
2 stops14h 32mDelta
Deal found 23/11C$ 550
Mon 15/1210:30 p.m.YUL - SAN
1 stop16h 23mAir Canada
Wed 17/1212:40 p.m.SAN - YUL
1 stop8h 52mAir Canada
Deal found 23/11C$ 711
Fri 19/127:08 a.m.YUL - SAN
1 stop16h 54mAmerican Airlines
Tue 30/124:25 p.m.SAN - YUL
2 stops19h 45mAmerican Airlines
Deal found 23/11C$ 654
Fri 19/127:08 a.m.YUL - SAN
1 stop16h 54mAmerican Airlines
Mon 29/1210:48 p.m.SAN - YUL
1 stop21h 10mAmerican Airlines
Deal found 23/11C$ 691
Wed 31/1212:59 p.m.YUL - SAN
2 stops22h 49mAmerican Airlines
Sat 10/12:01 p.m.SAN - YUL
1 stop22h 07mAmerican Airlines
Deal found 23/11C$ 606
Wed 31/1212:59 p.m.YUL - SAN
2 stops22h 49mAmerican Airlines
Thu 8/11:58 p.m.SAN - YUL
1 stop22h 10mAmerican Airlines
Deal found 23/11C$ 639
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 24 November 2025.
Thu 22/16:45 a.m.YUL - SAN
3 stops29h 41mMultiple Airlines
Deal found 23/11C$ 269
Tue 20/14:15 p.m.YUL - SAN
1 stop22h 30mWestJet
Deal found 24/11C$ 292
Tue 16/126:45 a.m.YUL - SAN
2 stops28h 54mMultiple Airlines
Deal found 23/11C$ 293
Fri 9/112:59 p.m.YUL - SAN
1 stop12h 59mAmerican Airlines
Deal found 22/11C$ 310
Fri 6/24:35 p.m.YUL - SAN
2 stops33h 56mMultiple Airlines
Deal found 22/11C$ 316
Tue 20/17:00 a.m.YUL - SAN
2 stops13h 28mUnited Airlines
Deal found 24/11C$ 319
Sat 13/126:45 a.m.YUL - SAN
2 stops16h 22mMultiple Airlines
Deal found 23/11C$ 323
Sat 24/17:00 a.m.YUL - SAN
2 stops14h 31mAmerican Airlines
Deal found 23/11C$ 324
Tue 6/13:00 p.m.YUL - SAN
2 stops23h 05mUnited Airlines
Deal found 22/11C$ 326
Tue 6/15:25 p.m.YUL - SAN
3 stops47h 04mMultiple Airlines
Deal found 22/11C$ 329
Cheap 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 24 November 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 24 November 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 20/2
12:59 p.m.-11:59 p.m.
2 stops14h 00m
San Diego
Sun 22/2
3:23 p.m.-3:05 p.m.
1 stop20h 42m
C$ 519
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 7/1
7:00 a.m.-5:39 p.m.
1 stop13h 39m
San Diego
Fri 20/3
10:10 p.m.-11:57 a.m.
1 stop10h 47m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 7/1
7:00 a.m.-5:39 p.m.
1 stop13h 39m
San Diego
Mon 23/3
10:30 p.m.-11:32 a.m.
1 stop10h 02m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 17/1
2:40 p.m.-8:51 p.m.
1 stop9h 11m
San Diego
Sun 25/1
11:43 a.m.-11:12 p.m.
1 stop8h 29m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 1/4
12:42 p.m.-6:51 p.m.
1 stop9h 09m
San Diego
Tue 7/4
10:30 p.m.-11:37 a.m.
1 stop10h 07m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 7/2
12:50 p.m.-6:51 p.m.
1 stop9h 01m
San Diego
Sat 14/2
10:05 p.m.-12:02 p.m.
1 stop10h 57m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 13/1
12:54 p.m.-6:58 p.m.
1 stop9h 04m
San Diego
Wed 29/4
8:50 a.m.-11:34 p.m.
1 stop11h 44m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 15/1
12:54 p.m.-10:31 p.m.
1 stop12h 37m
San Diego
Sat 24/1
10:00 p.m.-12:04 p.m.
1 stop11h 04m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 17/1
2:45 p.m.-10:45 p.m.
1 stop11h 00m
San Diego
Fri 23/1
10:00 p.m.-12:12 p.m.
1 stop11h 12m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 14/1
2:40 p.m.-8:51 p.m.
1 stop9h 11m
San Diego
Tue 28/4
8:50 a.m.-11:34 p.m.
1 stop11h 44m
C$ 533
Flights are sorted by cheapest round-trip flights first.
Deals found on 23/11
Showing 1-10 of 22 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 21 November 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$ 189). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 362). 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 24 November 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 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 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 24 November 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 39m. 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$ 282, American Airlines will fly you from Montreal to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Porter Airlines - these airlines can fly you to your destination from C$ 306 and C$ 357, respectively. American Airlines is currently priced 46% below the average price you’ll pay for this route.
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$ 189). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 362). 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
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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 24 November 2025.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 24 November 2025.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 November 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 24 November 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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