$151+ Cheap flights from Dulles Intl (IAD) to Montreal (YMQ)
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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YMQ
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Montreal 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 Washington, D.C. Dulles Intl to Montreal are usually found in March or February, booked 50 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Dulles Intl to Montreal
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to MontrealExplore the most affordable flight options available from Dulles Intl to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from Dulles Intl to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This Trip.com deal was found by Cheapflights users on 8/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:50 pm -
1 stop5h 22m
Sat 10/246:30 am -
1 stop4h 15m
Deal found 8/31![Porter Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:50 pm -
1 stop5h 22m
Thu 9/246:30 am -
1 stop4h 15m
Deal found 9/1![Porter Airlines logo]()
$332
This Flightnetwork deal was found by Cheapflights users on 9/1. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:50 pm -
1 stop5h 22m
Thu 10/81:05 pm -
Nonstop1h 55m
Deal found 9/1![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:25 am -
1 stop6h 47m
Tue 9/226:30 am -
1 stop4h 15m
Deal found 9/3![Porter Airlines logo]()
$338
This Trip.com deal was found by Cheapflights users on 9/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:50 pm -
1 stop5h 22m
Tue 9/296:30 am -
1 stop4h 15m
Deal found 9/3![Porter Airlines logo]()
$339
This Flightnetwork deal was found by Cheapflights users on 9/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:55 am -
2 stops8h 43m
Thu 10/86:30 am -
1 stop4h 15m
Deal found 9/2![Multiple Airlines logo]()
$340
This Mytrip deal was found by Cheapflights users on 9/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:45 pm -
Nonstop1h 38m
Mon 10/510:30 am -
1 stop6h 12m
Deal found 9/2![Air Canada logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:25 am -
1 stop6h 47m
Thu 10/229:00 am -
1 stop6h 10m
Deal found 9/4![Porter Airlines logo]()
$342
This Flightnetwork deal was found by Cheapflights users on 9/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:00 pm -
1 stop4h 21m
Mon 10/56:30 am -
1 stop4h 15m
Deal found 9/2![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:50 pm -
1 stop5h 22m
Sat 9/266:30 am -
1 stop4h 15m
Deal found 8/31![Porter Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:25 am -
1 stop6h 47m
Mon 10/199:00 am -
1 stop6h 10m
Deal found 9/3![Porter Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:50 pm -
1 stop8h 35m
Sun 10/410:35 am -
1 stop4h 35m
Deal found 9/3![Multiple Airlines logo]()
$347
Best flights from Dulles Intl to MontrealDiscover carefully curated flight deals from Dulles Intl to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Dulles Intl to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 9/206:10 am -
1 stop5h 48m
Wed 9/237:00 am -
1 stop7h 11m
Deal found 9/3![Delta logo]()
$394
This Porter Airlines deal was found by Cheapflights users on 9/4. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:25 am -
1 stop6h 47m
Tue 9/296:30 am -
1 stop4h 15m
Deal found 9/4![Porter Airlines logo]()
$397
This United deal was found by Cheapflights users on 9/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:43 pm -
Nonstop1h 57m
Mon 10/51:05 pm -
Nonstop1h 55m
Deal found 9/2![Multiple Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/291:19 pm -
Nonstop1h 57m
Sun 11/19:15 am -
Nonstop2h 13m
Deal found 8/31![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 9/1. 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 12/33:00 pm -
1 stop8h 58m
Sat 12/57:00 am -
1 stop9h 29m
Deal found 9/1![Delta logo]()
$394
This United deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:15 am -
1 stop6h 54m
Thu 9/175:05 pm -
Nonstop1h 55m
Deal found 9/1![Multiple Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 10/125:40 pm -
Nonstop2h 05m
Mon 10/196:00 am -
1 stop5h 25m
Deal found 8/31![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 10/28:08 am -
1 stop9h 28m
Sun 10/46:00 am -
1 stop4h 21m
Deal found 9/2![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/1612:43 pm -
Nonstop1h 57m
Sun 9/206:10 am -
1 stop5h 39m
Deal found 9/2![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 9/1. 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 9/265:15 pm -
1 stop6h 12m
Mon 10/56:47 pm -
1 stop5h 54m
Deal found 9/1![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 9/4. 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.
Tue 11/1011:25 am -
1 stop4h 33m
Thu 11/126:00 am -
1 stop4h 45m
Deal found 9/4![Delta logo]()
$415
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/228:33 am -
1 stop4h 36m
Sun 10/253:00 pm -
1 stop7h 25m
Deal found 8/31![United Airlines logo]()
$483
Last-minute flights from Dulles Intl to MontrealDiscover last-minute flight deals from Dulles Intl to Montreal. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montreal. Data last updated September 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:13 pm -
2 stops30h 12m
Tue 9/296:30 am -
1 stop4h 15m
Deal found 8/31![Multiple Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:50 pm -
1 stop5h 22m
Thu 9/246:30 am -
1 stop4h 15m
Deal found 9/1![Porter Airlines logo]()
$332
This Air Canada deal was found by Cheapflights users on 9/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:45 am -
Nonstop1h 38m
Wed 10/71:05 pm -
Nonstop1h 55m
Deal found 9/1![Air Canada logo]()
$368
This United deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:15 am -
1 stop6h 54m
Tue 9/155:05 pm -
Nonstop1h 55m
Deal found 9/1![Multiple Airlines logo]()
$373
This Gotogate deal was found by Cheapflights users on 9/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:25 am -
1 stop6h 47m
Tue 10/66:30 am -
1 stop4h 15m
Deal found 9/1![Porter Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 9/1. 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.
Tue 9/156:00 am -
1 stop5h 36m
Wed 10/76:50 pm -
1 stop5h 52m
Deal found 9/1![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/156:15 am -
1 stop6h 54m
Tue 9/154:55 pm -
1 stop7h 49m
Deal found 9/1![United Airlines logo]()
$413
This United deal was found by Cheapflights users on 8/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:40 pm -
Nonstop2h 05m
Fri 9/181:05 pm -
Nonstop1h 55m
Deal found 8/31![Multiple Airlines logo]()
$418
This Air Canada deal was found by Cheapflights users on 8/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:45 am -
Nonstop1h 38m
Fri 9/1810:30 am -
1 stop6h 08m
Deal found 8/31![Air Canada logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:25 am -
1 stop6h 47m
Tue 10/66:45 am -
2 stops13h 24m
Deal found 9/1![Multiple Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/156:15 am -
1 stop6h 54m
Tue 10/69:15 am -
Nonstop1h 58m
Deal found 9/1![United Airlines logo]()
$428
One-way flights from Dulles Intl to MontrealSearch for one-way flight options from Dulles Intl to Montreal. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Dulles Intl to Montreal. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:20 am -
1 stop4h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Porter Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:25 am -
1 stop6h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Porter Airlines logo]()
$152
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:50 pm -
1 stop5h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Porter Airlines logo]()
$153
This Trip.com deal was found by Cheapflights users on 8/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:50 pm -
1 stop5h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Porter Airlines logo]()
$154
This Flightnetwork deal was found by Cheapflights users on 9/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:00 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Air Canada logo]()
$155
This Booking.com deal was found by Cheapflights users on 9/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:00 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Air Canada logo]()
$156
This Jettzy deal was found by Cheapflights users on 9/1. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:45 am -
Nonstop1h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Air Canada logo]()
$157
This Air Canada deal was found by Cheapflights users on 9/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:45 am -
Nonstop1h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Air Canada logo]()
$158
This FlightHub deal was found by Cheapflights users on 8/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:50 pm -
1 stop5h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Porter Airlines logo]()
$159
This Mytrip deal was found by Cheapflights users on 9/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:55 am -
1 stop6h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Air Canada logo]()
$160
This Trip.com deal was found by Cheapflights users on 9/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:25 am -
1 stop6h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Porter Airlines logo]()
$162
This Air Canada deal was found by Cheapflights users on 9/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:20 pm -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Air Canada logo]()
$163
Find flight deals from Dulles Intl to Montreal
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Montreal (YMQ). 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 September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (Trip.com) |
One-way from | $151 (FlightHub) |
Popular in | December |
Cheapest in | March |
Average price | $417 |
Good round-trip deal | $425 or less |
Good one-way deal | $224 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Montreal 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 September 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montreal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Mon 10/12
11:25 am-6:12 pm
1 stop6h 47m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$152
Quickest round-trip
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Wed 10/14
3:45 pm-5:25 pm
Nonstop1h 40m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Thu 10/22
8:13 am-5:38 pm
1 stop9h 25m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$168
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Thu 9/17
8:08 am-5:36 pm
1 stop9h 28m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$168
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Wed 10/7
8:13 am-5:38 pm
1 stop9h 25m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$168
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Thu 12/24
11:20 am-4:00 pm
1 stop4h 40m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$177
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Tue 10/13
5:40 pm-7:45 pm
Nonstop2h 05m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Thu 12/24
1:19 pm-3:16 pm
Nonstop1h 57m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Mon 10/12
5:40 pm-7:45 pm
Nonstop2h 05m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Washington, D.C.Montreal
IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl
IADYUL
Washington, D.C. Dulles Intl
Tue 9/15
5:40 pm-7:45 pm
Nonstop2h 05m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Showing 1-10 of 24 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Montreal flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Montreal flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Montreal flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Montreal flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Dulles Intl Airport-Montreal 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 Dulles Intl to Montreal
Have a flexible travel schedule? Discover the best time to fly to Montreal from Dulles Intl with our price prediction graph.
IAD-YMQ
IAD-YUL
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 Washington, D.C. Dulles Intl Airport to Montreal
IAD-YMQ
IAD-YUL
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montreal?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal (average of $288). Flying from Washington, D.C. Dulles Intl Airport to Montreal in September is currently the most expensive (average of $480). 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 IAD to YMQ?
Find hourly flight availability from Dulles Intl to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 5, 2026.
One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Montreal is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to Montreal
Explore weekly flight availability from Dulles Intl to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 5, 2026.
The most flights from IAD to YMQ are scheduled on a Monday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Montreal?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Montreal flights typically cost between $368 and $513 in October.The cheapest round-trip price found within the last 5 days was $329 on Porter Airlines (Oct 22-Oct 24).
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Montreal?
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Montreal, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Montreal?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Montreal. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Montreal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Montreal
Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated September 5, 2026.
See what other customers who have flown with Porter Airlines,United Airlines, andAir Canada from Washington, D.C. Dulles Intl Airport to Montreal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Food
7.6
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Food
7.6
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Food
7.6
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
6.9
Comfort
8.0
Food
7.6
Reviews
1 / 20
10.0
ExcellentRegan,Aug 2026
YYZ - YVR
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Montreal
Explore flights to Montreal departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 5, 2026.
Dulles Intl and Montreal flights
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Top 3 airlines flying from Dulles Intl to Montreal
Discover the top 3 airlines that operate flights from Dulles Intl to Montreal. 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 September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$322 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$137 | Average$399 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$244 | Average$527 | FlexibilityNo cancel fee | On-time69% |