Cheap flights from Seattle to Montreal

Round-trip
Economy
Seattle (SEA)
Montreal (YMQ)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Seattle/Tacoma Intl to Montreal are usually found in January or April, booked 42 days in advance, depart on a Monday or Saturday and return on a Wednesday

How to find the cheapest flight from
Seattle (SEA) to Montreal (YMQ)

All the information you need to plan the best SEA to YMQ flight in 2021: compare Seattle to Montreal flight prices with the expected peak season, weather and rainfall in Montreal.
SEA - YMQ
Price
C$ 387 - C$ 735
YMQ
Temperature
-9 - 22 °C
YMQ
Precipitation
64 - 111 mm

Popular in

December

High demand for flights, 20% potential price rise

Cheapest in

January

Best time to find cheap flights, 34% potential price drop

Round-trip from

C$ 387

From Seattle/Tacoma Intl to Montreal All airports (YMQ)

One-way from

C$ 174

One-way flight from Seattle/Tacoma Intl to Montreal All airports (YMQ)

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Montreal?

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Montreal. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Seattle to Montreal?

Travellers have found it’s best to book a flight 42 days in advance to save up to 1% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 42 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Montreal 1-2 weeks in advance for as low as C$ 510, or C$ 510 for flights within the next 24 hours.

When is the cheapest time to fly from Seattle to Montreal (SEA - YMQ)?

When flying from Seattle to Montreal, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 16% versus a flight in the afternoon.

Cheap flights from Seattle to Montreal in September, October 2021

The best prices found for SEA to YMQ flights for September, October
31 Oct - 11 Nov
C$ 425pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
15 Oct - 3 Nov
C$ 430pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Oct - 9 Nov
C$ 432pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Montreal 2021 flight deals

Cheap flights to Montreal from Seattle found for this year
4 Dec - 6 Dec
C$ 406pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
16 Nov - 21 Nov
C$ 424pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
15 Nov - 25 Nov
C$ 425pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Montreal

Late deals on round-trip flights to Montreal from Seattle, departing today and this week
3 Oct - 7 Oct
C$ 498pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
30 Sep - 5 Oct
C$ 534pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
29 Sep - 12 Oct
C$ 538pp
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Montreal from Seattle

The cheapest one-way flights from Seattle to Montreal
6:47 p.m. - 6:46 a.m.
Alaska Airlines
1 stop
8h 59m
SEA - YUL
Alaska Airlines
C$ 174
Travel2Be
3:35 a.m. - 6:53 p.m.
Delta
1 stop
12h 18m
SEA - YUL
Delta
C$ 207
Delta
3:53 p.m. - 2:42 p.m.
WestJet
2 stops
19h 49m
SEA - YUL
WestJet
C$ 258
WestJet

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Montreal</span> flights.

Flight FAQs

From Seattle to Montreal

What airport do you fly from for flights from Seattle to Montreal?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Montreal. On average, Seattle/Tacoma Intl has 0 outbound flights to Montreal per day from 3 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

Which airlines flying from Seattle/Tacoma Intl to Montreal have flexible cancellations due to COVID-19?

WestJet, Air Canada, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Seattle to Montreal for under C$ 500 on Cheapflights?

Yes, there are multiple flights from Seattle to Montreal for under C$ 500. The cheapest flight booked recently is on Multiple Airlines for just C$ 406, but on average you can expect to pay C$ 435.

Are there last-minute flights available from Seattle to Montreal for under C$ 500?

There are currently 20+ open flights from Seattle to Montreal within the next 7 days for less than C$ 500.

What are the cheapest airlines flying from Seattle to Montreal round-trip?

Cheapflights users have booked flights from Seattle to Montreal round-trip from C$ 426. Other airlines that can offer you cheap pricing are American Airlines, from C$ 462, and Delta, from C$ 463. Air Canada is 27% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Seattle to Montreal one-way?

The cheapest airlines for a one-way flight from Seattle to Montreal are Alaska Airlines (C$ 174), Air Canada (C$ 180), and United Airlines (C$ 194).

What are the cheapest flights from Seattle to Montreal?

On average you can expect to pay C$ 478 for a flight from Seattle to Montreal. The cheapest flight overall is C$ 186 while the most popular route, (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at C$ 406.

What are the most popular airlines that fly from Seattle to Montreal?

The most popular airlines flying from Seattle to Montreal are Air Canada, Delta and United Airlines. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for Montreal, Canada

Do I need a COVID test to fly to Montreal from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Montreal

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Montreal.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Montreal.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Montreal.

Documents
Compassionate entry for travellers and limited release from quarantine - Foreign nationals traveling without an advance written approval for an exemption of a border restriction may be denied entry into Canada.


Do I need a test to fly back to Seattle from Montreal?

Returning to Seattle/Tacoma Intl from Montreal

COVID-19 testing requirements
Visitors from Montreal must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Montreal are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Montreal, Canada

Destination information for Montreal

Things to know before you go - useful duration and weather info for your trip from Seattle to Montreal.
Today's exchange rate
C$ 1 = C$ 1.00
Average temperature for September in Montreal
23.0 °C
Avg rainfall for September in Montreal
69.0 mm

Airports servicing Seattle

Airports servicing Montreal

Montreal Pierre Elliott Trudeau Intl (YUL)
Montreal St Hubert (YHU)
Home North America Canada Quebec Montreal Cheap flights from Seattle to Montreal
  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First