Cheap flights from Montreal to San Diego from C$ 283
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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAN
29 Nov — 6 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 30 October 2025.
Sat 6/126:00 a.m.YUL - SAN
1 stop8h 53mAir Canada
Sun 14/1212:40 p.m.SAN - YUL
1 stop8h 52mAir Canada
Deal found 30/10C$ 493
Wed 26/116:50 p.m.YUL - SAN
1 stop16h 04mMultiple Airlines
Wed 3/1212:40 p.m.SAN - YUL
1 stop8h 12mMultiple Airlines
Deal found 30/10C$ 505
Wed 26/116:00 a.m.YUL - SAN
1 stop8h 53mAir Canada
Wed 3/1212:40 p.m.SAN - YUL
1 stop8h 52mAir Canada
Deal found 30/10C$ 519
Thu 27/116:00 a.m.YUL - SAN
1 stop11h 15mDelta
Thu 4/1212:24 p.m.SAN - YUL
1 stop8h 35mDelta
Deal found 28/10C$ 531
Sat 6/127:00 a.m.YUL - SAN
1 stop9h 02mDelta
Sun 14/1210:00 p.m.SAN - YUL
1 stop11h 00mDelta
Deal found 29/10C$ 532
Tue 2/124:00 p.m.YUL - SAN
1 stop19h 28mAmerican Airlines
Wed 10/1210:23 p.m.SAN - YUL
1 stop12h 22mAmerican Airlines
Deal found 28/10C$ 545
Tue 2/124:00 p.m.YUL - SAN
1 stop19h 28mAmerican Airlines
Sat 6/1210:45 p.m.SAN - YUL
1 stop10h 35mAmerican Airlines
Deal found 30/10C$ 546
Wed 3/127:30 a.m.YUL - SAN
2 stops13h 55mAmerican Airlines
Wed 10/126:46 a.m.SAN - YUL
1 stop12h 54mAmerican Airlines
Deal found 27/10C$ 547
Wed 3/126:00 a.m.YUL - SAN
2 stops15h 21mUnited Airlines
Wed 10/124:11 p.m.SAN - YUL
2 stops20h 05mUnited Airlines
Deal found 27/10C$ 552
Thu 27/112:13 p.m.YUL - SAN
1 stop9h 20mUnited Airlines
Thu 4/128:40 p.m.SAN - YUL
2 stops21h 37mUnited Airlines
Deal found 28/10C$ 553
Wed 3/127:00 a.m.YUL - SAN
2 stops15h 56mUnited Airlines
Sun 7/125:23 p.m.SAN - YUL
2 stops17h 37mUnited Airlines
Deal found 30/10C$ 554
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 30 October 2025.
Wed 22/46:00 a.m.YUL - SAN
1 stop11h 08mDelta
Mon 27/48:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 27/10C$ 531
Thu 5/27:00 a.m.YUL - SAN
2 stops12h 36mUnited Airlines
Thu 5/26:55 p.m.SAN - YUL
2 stops17h 21mUnited Airlines
Deal found 29/10C$ 545
Tue 24/23:00 p.m.YUL - SAN
1 stop8h 35mDelta
Mon 9/39:40 p.m.SAN - YUL
1 stop11h 04mDelta
Deal found 29/10C$ 532
Thu 22/12:13 p.m.YUL - SAN
1 stop9h 34mUnited Airlines
Sat 14/26:30 a.m.SAN - YUL
2 stops10h 18mUnited Airlines
Deal found 27/10C$ 552
Tue 13/112:54 p.m.YUL - SAN
1 stop9h 06mDelta
Wed 29/48:50 a.m.SAN - YUL
1 stop11h 44mDelta
Deal found 29/10C$ 532
Wed 22/49:45 a.m.YUL - SAN
2 stops14h 23mUnited Airlines
Mon 27/48:50 p.m.SAN - YUL
2 stops10h 21mUnited Airlines
Deal found 27/10C$ 552
Wed 25/212:45 p.m.YUL - SAN
1 stop13h 26mDelta
Tue 10/39:40 p.m.SAN - YUL
1 stop11h 04mDelta
Deal found 30/10C$ 533
Thu 27/116:00 a.m.YUL - SAN
2 stops20h 44mUnited Airlines
Thu 4/126:30 a.m.SAN - YUL
2 stops10h 18mUnited Airlines
Deal found 28/10C$ 553
Fri 5/129:15 a.m.YUL - SAN
2 stops15h 36mUnited Airlines
Tue 9/126:30 a.m.SAN - YUL
2 stops12h 12mUnited Airlines
Deal found 28/10C$ 553
Last-minute flights from Montreal to San Diego
Discover last-minute flight deals from Montreal to San Diego. Data last updated 30 October 2025 and is based on user searches.
Mon 17/1112:45 p.m.YUL - SAN
1 stop10h 28mDelta
Mon 1/1210:00 p.m.SAN - YUL
1 stop11h 00mDelta
Deal found 27/10C$ 560
Tue 18/117:30 a.m.YUL - SAN
2 stops13h 54mAmerican Airlines
Tue 2/129:42 a.m.SAN - YUL
2 stops10h 17mAmerican Airlines
Deal found 27/10C$ 570
Wed 19/117:00 a.m.YUL - SAN
2 stops19h 55mDelta
Thu 4/1210:00 p.m.SAN - YUL
1 stop11h 00mDelta
Deal found 27/10C$ 566
Thu 20/1112:45 p.m.YUL - SAN
1 stop11h 28mDelta
Thu 4/1211:36 a.m.SAN - YUL
1 stop8h 56mDelta
Deal found 27/10C$ 561
Tue 25/1112:45 p.m.YUL - SAN
1 stop11h 28mDelta
Wed 3/1211:05 a.m.SAN - YUL
1 stop9h 54mDelta
Deal found 30/10C$ 563
Wed 26/116:50 p.m.YUL - SAN
1 stop16h 04mMultiple Airlines
Wed 3/1212:40 p.m.SAN - YUL
1 stop8h 12mMultiple Airlines
Deal found 30/10C$ 505
Wed 26/116:00 a.m.YUL - SAN
1 stop8h 53mAir Canada
Wed 3/1212:40 p.m.SAN - YUL
1 stop8h 52mAir Canada
Deal found 30/10C$ 519
Wed 26/117:14 a.m.YUL - SAN
1 stop14h 37mAmerican Airlines
Thu 4/126:15 a.m.SAN - YUL
1 stop13h 27mAmerican Airlines
Deal found 29/10C$ 575
Thu 27/116:00 a.m.YUL - SAN
1 stop11h 15mDelta
Thu 4/1212:24 p.m.SAN - YUL
1 stop8h 35mDelta
Deal found 28/10C$ 531
Thu 27/116:00 a.m.YUL - SAN
2 stops20h 44mUnited Airlines
Thu 4/126:30 a.m.SAN - YUL
2 stops10h 18mUnited Airlines
Deal found 28/10C$ 553
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 30 October 2025.
Sat 24/16:00 a.m.YUL - SAN
1 stop8h 53mAir Canada
Deal found 30/10C$ 283
Sat 24/17:30 a.m.YUL - SAN
2 stops14h 01mAmerican Airlines
Deal found 30/10C$ 303
Wed 24/122:40 p.m.YUL - SAN
1 stop9h 23mDelta
Deal found 28/10C$ 307
Tue 6/17:00 a.m.YUL - SAN
1 stop13h 41mDelta
Deal found 30/10C$ 309
Fri 12/127:00 a.m.YUL - SAN
1 stop14h 05mAmerican Airlines
Deal found 28/10C$ 313
Fri 12/122:13 p.m.YUL - SAN
2 stops11h 17mUnited Airlines
Deal found 28/10C$ 317
Tue 20/19:15 a.m.YUL - SAN
2 stops17h 27mUnited Airlines
Deal found 29/10C$ 318
Tue 18/116:45 a.m.YUL - SAN
2 stops16h 39mMultiple Airlines
Deal found 28/10C$ 321
Tue 6/16:45 a.m.YUL - SAN
3 stops32h 53mMultiple Airlines
Deal found 30/10C$ 324
Tue 18/1112:45 p.m.YUL - SAN
1 stop10h 28mDelta
Deal found 28/10C$ 337
Sun 23/117:10 a.m.YUL - SAN
1 stop8h 56mDelta
Deal found 30/10C$ 338
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 30 October 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 30 October 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
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$ 531
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 24/2
3:00 p.m.-8:35 p.m.
1 stop8h 35m
San Diego
Mon 9/3
9:40 p.m.-11:44 a.m.
1 stop11h 04m
C$ 532
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Tue 13/1
12:54 p.m.-7:00 p.m.
1 stop9h 06m
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
Wed 25/2
12:45 p.m.-11:11 p.m.
1 stop13h 26m
San Diego
Tue 10/3
9:40 p.m.-11:44 a.m.
1 stop11h 04m
C$ 533
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 5/2
7:00 a.m.-4:36 p.m.
2 stops12h 36m
San Diego
Thu 5/2
6:55 p.m.-3:16 p.m.
2 stops17h 21m
C$ 545
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 22/1
2:13 p.m.-8:47 p.m.
1 stop9h 34m
San Diego
Sat 14/2
6:30 a.m.-7:48 p.m.
2 stops10h 18m
C$ 552
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 22/4
9:45 a.m.-9:08 p.m.
2 stops14h 23m
San Diego
Mon 27/4
8:50 p.m.-10:11 a.m.
2 stops10h 21m
C$ 552
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 27/11
6:00 a.m.-11:44 p.m.
2 stops20h 44m
San Diego
Thu 4/12
6:30 a.m.-7:48 p.m.
2 stops10h 18m
C$ 553
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Fri 5/12
9:15 a.m.-9:51 p.m.
2 stops15h 36m
San Diego
Tue 9/12
6:30 a.m.-9:42 p.m.
2 stops12h 12m
C$ 553
MontrealSan Diego
YUL - SAN
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sun 8/2
6:45 a.m.-12:38 p.m.
3 stops32h 53m
C$ 304
Flights are sorted by cheapest round-trip flights first.
Deals found on 29/10
Showing 1-10 of 19 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 24 October 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$ 187). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 359). 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 30 October 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 30 October 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.
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.
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.
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.
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.
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.
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 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 11h 08m. Montreal and San Diego are separated by a distance of 3948 km.
What are the cheapest airlines flying from Montreal to San Diego round-trip?
Currently priced at C$ 284, 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$ 303 and C$ 353, respectively. American Airlines is currently priced 47% 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$ 187). Flying from Montreal to San Diego in September is currently the most expensive (average of C$ 359). 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
La Mesa
Borrego Springs
El Cajon
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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 30 October 2025.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2025.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 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 30 October 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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