
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $199 (Trip.com) |
One-way from | $154 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $503 |
Fly from
Fly to
Route
Depart
Return
Price
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Mon 5/4
6:45 am-1:08 pm
1 stop9h 23m
Seattle/Tacoma Intl
Tue 5/12
2:05 pm-12:42 am
1 stop7h 37m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Wed 1/14
7:30 pm-2:20 pm
1 stop21h 50m
Seattle/Tacoma Intl
Wed 2/4
3:10 pm-7:05 am
1 stop12h 55m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Sat 1/10
3:10 pm-10:16 pm
1 stop10h 06m
Seattle/Tacoma Intl
Sat 1/17
8:10 am-7:22 pm
1 stop8h 12m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Wed 1/21
2:25 pm-10:06 pm
2 stops10h 41m
Seattle/Tacoma Intl
Thu 1/22
5:50 am-5:00 pm
1 stop8h 10m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Sat 1/10
3:00 pm-9:55 am
2 stops21h 55m
Seattle/Tacoma Intl
Sat 1/17
12:40 pm-1:28 pm
2 stops21h 48m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Tue 1/27
6:00 am-11:32 am
1 stop8h 32m
Seattle/Tacoma Intl
Thu 1/29
8:10 am-7:48 pm
1 stop8h 38m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Fri 5/8
6:45 am-8:28 pm
1 stop16h 43m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Wed 1/14
7:30 pm-2:20 pm
1 stop21h 50m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Mon 2/2
4:15 pm-2:19 pm
1 stop25h 04m
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Tue 1/13
7:30 pm-2:20 pm
1 stop21h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle, you should look to book at least 37 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.
Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle (average of $203). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle in December is currently the most expensive (average of $488). 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.
Unlike in the morning, when flights are generally more expensive, you can save up to 28% on flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle by exploring options for tickets in the afternoon.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$270 | Average$595 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$316 | Average$476 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$516 | Average$890 | FlexibilityNo cancel fee | On-time69% |