Cheap flights from Montreal to San Diego from C$ 276
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAN
2 Nov — 9 Nov1
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 November or December, booked 21 days in advance, depart on a Monday or Wednesday and return on a Monday
Cheap flight deals from Montreal to San Diego
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
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 3 October 2026.
Sat 21/117:30 a.m. -
1 stop11h 25m
Tue 24/115:15 p.m. -
1 stop11h 35m
Deal found 2/10C$ 507
Tue 17/117:30 a.m. -
1 stop11h 55m
Tue 24/115:15 p.m. -
1 stop11h 35m
Deal found 3/10C$ 518
Tue 27/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 28/9C$ 521
Fri 30/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 28/9C$ 522
Wed 4/118:45 a.m. -
1 stop10h 40m
Tue 10/1112:55 p.m. -
1 stop10h 01m
Deal found 2/10C$ 528
Sat 31/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 30/9C$ 531
Fri 27/116:00 a.m. -
2 stops14h 17m
Tue 8/126:20 a.m. -
2 stops12h 22m
Deal found 29/9C$ 534
Thu 29/107:00 a.m. -
2 stops13h 15m
Tue 3/116:20 a.m. -
2 stops12h 22m
Deal found 29/9C$ 540
Wed 4/1112:10 p.m. -
1 stop10h 05m
Sun 8/1110:40 p.m. -
1 stop9h 45m
Deal found 29/9C$ 542
Mon 2/116:00 a.m. -
1 stop11h 20m
Fri 11/1210:30 p.m. -
1 stop12h 17m
Deal found 29/9C$ 545
Wed 11/112:13 p.m. -
1 stop9h 20m
Mon 16/114:45 p.m. -
2 stops17h 43m
Deal found 29/9C$ 551
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 3 October 2026.
Mon 2/117:00 a.m. -
1 stop12h 25m
Wed 4/1112:38 p.m. -
1 stop8h 16m
Deal found 28/9C$ 540
Tue 27/102:13 p.m. -
1 stop9h 20m
Tue 3/116:45 a.m. -
2 stops11h 57m
Deal found 28/9C$ 591
Wed 25/1112:44 p.m. -
1 stop9h 57m
Mon 7/1211:37 a.m. -
1 stop8h 56m
Deal found 2/10C$ 606
Mon 9/112:13 p.m. -
1 stop9h 20m
Mon 16/119:40 p.m. -
1 stop12h 48m
Deal found 2/10C$ 611
Wed 25/119:15 a.m. -
2 stops16h 15m
Mon 7/127:41 p.m. -
2 stops14h 47m
Deal found 2/10C$ 636
Fri 13/117:00 a.m. -
2 stops18h 54m
Fri 20/1110:10 p.m. -
1 stop10h 42m
Deal found 28/9C$ 673
Mon 16/111:10 p.m. -
2 stops10h 26m
Wed 18/114:45 p.m. -
2 stops12h 47m
Deal found 2/10C$ 726
Tue 13/106:00 a.m. -
1 stop11h 20m
Wed 21/105:01 p.m. -
2 stops20h 14m
Deal found 29/9C$ 754
Tue 20/109:45 a.m. -
2 stops13h 23m
Mon 2/117:41 p.m. -
2 stops11h 36m
Deal found 28/9C$ 753
Tue 5/112:45 p.m. -
1 stop11h 56m
Sun 17/16:15 a.m. -
2 stops14h 36m
Deal found 28/9C$ 766
Sat 17/107:00 a.m. -
1 stop12h 25m
Tue 20/1010:25 p.m. -
1 stop10h 13m
Deal found 2/10C$ 787
Wed 21/106:00 a.m. -
1 stop11h 20m
Fri 23/1010:25 p.m. -
1 stop12h 14m
Deal found 2/10C$ 787
Last-minute flights from Montreal to San Diego
Discover last-minute flight deals from Montreal to San Diego. Data last updated 3 October 2026 and is based on user searches.
Tue 27/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 28/9C$ 521
Thu 29/107:00 a.m. -
2 stops13h 15m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 29/9C$ 540
Fri 30/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 28/9C$ 522
Sat 31/107:30 a.m. -
1 stop11h 55m
Tue 3/115:15 p.m. -
1 stop11h 15m
Deal found 30/9C$ 531
Mon 2/116:00 a.m. -
1 stop11h 20m
Fri 11/1210:30 p.m. -
1 stop12h 17m
Deal found 29/9C$ 545
Wed 4/118:45 a.m. -
1 stop10h 40m
Tue 10/1112:55 p.m. -
1 stop10h 01m
Deal found 2/10C$ 528
Wed 4/1112:10 p.m. -
1 stop10h 05m
Sun 8/1110:40 p.m. -
1 stop9h 45m
Deal found 29/9C$ 542
Wed 11/112:13 p.m. -
1 stop9h 20m
Mon 16/114:45 p.m. -
2 stops17h 43m
Deal found 29/9C$ 551
Tue 17/117:30 a.m. -
1 stop11h 55m
Tue 24/115:15 p.m. -
1 stop11h 35m
Deal found 3/10C$ 518
Sat 21/117:30 a.m. -
1 stop11h 25m
Tue 24/115:15 p.m. -
1 stop11h 35m
Deal found 2/10C$ 507
Fri 27/116:00 a.m. -
2 stops14h 17m
Tue 8/126:20 a.m. -
2 stops12h 22m
Deal found 29/9C$ 534
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 3 October 2026.
Fri 13/117:30 a.m. -
1 stop11h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/9C$ 276
Sun 13/127:30 a.m. -
1 stop11h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 292
Tue 27/106:45 a.m. -
2 stops14h 53m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 295
Wed 25/117:30 a.m. -
1 stop11h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/10C$ 296
Sat 31/107:30 a.m. -
1 stop11h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/9C$ 299
Tue 15/124:45 p.m. -
1 stop8h 48m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 306
Wed 11/116:00 a.m. -
2 stops14h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 312
Mon 14/124:49 p.m. -
1 stop8h 26m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 313
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 3 October 2026.
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 7,457,451 searches. Data last updated 3 October 2026.
Use the filters below to find and compare flights from Montreal to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Wed 16/12
4:45 p.m.-9:14 a.m.
2 stops19h 29m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 315
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 31/10
7:00 a.m.-5:15 p.m.
2 stops13h 15m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 327
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 16/11
6:00 a.m.-2:29 p.m.
1 stop11h 29m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 347
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sat 14/11
9:15 a.m.-8:33 p.m.
1 stop14h 18m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 347
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Thu 22/10
6:00 a.m.-2:20 p.m.
1 stop11h 20m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 400
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sun 18/10
6:00 a.m.-2:20 p.m.
1 stop11h 20m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 400
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Fri 16/10
6:00 a.m.-2:20 p.m.
1 stop11h 20m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 406
Quickest round-trip
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Fri 12/2
6:00 a.m.-2:12 p.m.
1 stop11h 12m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 421
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Sun 10/1
12:45 p.m.-11:03 p.m.
1 stop13h 18m
San Diego
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 423
MontrealSan Diego
YUL Montreal Pierre Elliott Trudeau Intl - SAN San Diego
YULSAN
Montreal Pierre Elliott Trudeau Intl
Mon 2/11
7:00 a.m.-4:25 p.m.
1 stop12h 25m
San Diego
Wed 4/11
12:38 p.m.-11:54 p.m.
1 stop8h 16m
C$ 540
Flights are sorted by cheapest round-trip flights first.
Deals found on 29/9
Showing 1-10 of 21 resultsSorted by cheapest first
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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.
YMQ-SAN
YUL-SAN
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
YMQ-SAN
YUL-SAN
What is the cheapest month to book a flight from Montreal to San Diego?
Currently, October is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 587). Flying from Montreal to San Diego in March is currently the most expensive (average of C$ 777). 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 3 October 2026.
When flying from Montreal to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Montreal to San Diego?
Airfare is below average for this route at the moment.
Montreal to San Diego flights typically cost between C$ 599 and C$ 854 in November.The cheapest round-trip price found within the last 5 days was C$ 507 on Air Canada (21 Nov-24 Nov).
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 44% 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.
Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 585.
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 46m.
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 1h 06m.
How far ahead should I book a flight from Montreal to San Diego?
Booking 73 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.
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 3 October 2026.
Check out reviews from past customers who have flown with Delta,United Airlines, andAir Canada 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.
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
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. 4 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 1 inbound flight from Montreal per day.
How long is the flight from Montreal to San Diego?
Departing from Montreal to San Diego will take you 9h 20m. 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$ 249, Air Canada will fly you from Montreal to San Diego and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from C$ 264 and C$ 331, respectively. Air Canada is currently priced 64% 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 United Airlines. According to our data, you can fly for as low as C$ 175. Users have also found prices from C$ 276 and C$ 298 on American Airlines and Air Canada, respectively.
What are the cheapest flights from Montreal to San Diego?
While on average a flight from Montreal to San Diego is generally C$ 666, our data shows the cheapest flight currently is C$ 557. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Diego), you can expect to pay C$ 579 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, October is the cheapest month in which you can book a flight from Montreal to San Diego (average of C$ 587). Flying from Montreal to San Diego in March is currently the most expensive (average of C$ 777). 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 3 October 2026.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 October 2026.
Discover the top 4 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 7,457,451 searches. Data last updated 3 October 2026.
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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