Cheap Flights from Montreal, QC to Seattle, WA from $209

One way Round trip

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On Cheapflightsplus.com you will find 2 direct and 998 connecting flights from Montreal to Seattle. You can compare airfare deals from 7 airlines and multiple travel sites from $209, book and save on cheap plane tickets and last minute offers. Also check out YMQ-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Montreal to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $209 (one-way), $358 (round-trip).

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Best Flights from Montreal to Seattle Today

Take a look at the list of non stop flights and flights with layovers from Montreal to Seattle with the lowest price of $209. The fastest direct flight takes 5h 46m and the fastest connecting – 7h 23m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $333 Find flight	16:45 Montreal Pierre Elliott Trudeau	19:37 Seattle Seattle-Tacoma Intl	5h 52m	Air Canada	AC515
from $366 Find flight	16:45 Montreal Pierre Elliott Trudeau	19:31 Seattle Seattle-Tacoma Intl	5h 46m	United Airlines	UA8085
from $255 Find flight	17:45 Montreal Pierre Elliott Trudeau	09:59+1 день Seattle Seattle-Tacoma Intl	19h 14m layover 10h 33m - Phoenix	Air Canada	AC1277 F93973
from $255 Find flight	17:30 Montreal Pierre Elliott Trudeau	16:09+1 день Seattle Seattle-Tacoma Intl	25h 39m layover 18h 51m - Calgary	WestJet	WS213 WS3617
from $272 Find flight	08:20 Montreal Pierre Elliott Trudeau	18:49 Seattle Seattle-Tacoma Intl	13h 29m layover 6h 19m - Chicago	United Airlines	UA8371 UA2278
from $209 Find flight	13:10 Montreal Pierre Elliott Trudeau	12:39+1 день Seattle Seattle-Tacoma Intl	26h 29m layover 1h 0m - Toronto 17h 41m - Chicago	Porter Airlines	PD2466 PD2393 HA6295
from $231 Find flight	08:10 Montreal Pierre Elliott Trudeau	11:24+1 день Seattle Seattle-Tacoma Intl	30h 14m layover 6h 35m - Vancouver 12h 10m - Los Angeles	WestJet	WS589 WS1698 F91177
from $234 Find flight	15:10 Montreal Pierre Elliott Trudeau	14:25+1 день Seattle Seattle-Tacoma Intl	26h 15m layover 3h 27m - Toronto 13h 42m - Las Vegas	Porter Airlines	PD120 PD655 NK2327
from $236 Find flight	16:45 Montreal Pierre Elliott Trudeau	00:10+2 дня Seattle Seattle-Tacoma Intl	34h 25m layover 23h 13m - San Diego 1h 15m - Las Vegas	Air Canada	AC527 NK2296 NK2625
from $238 Find flight	15:10 Montreal Pierre Elliott Trudeau	15:53+1 день Seattle Seattle-Tacoma Intl	27h 43m layover 3h 27m - Toronto 15h 15m - Las Vegas	Porter Airlines	PD120 PD655 NK781
from $238 Find flight	06:45 Montreal Pierre Elliott Trudeau	11:33+1 день Seattle Seattle-Tacoma Intl	31h 48m layover 1h 32m - Toronto 20h 28m - Los Angeles	Porter Airlines	PD102 PD663 F92175
from $243 Find flight	06:45 Montreal Pierre Elliott Trudeau	09:59+1 день Seattle Seattle-Tacoma Intl	30h 14m layover 1h 52m - Toronto 19h 3m - Phoenix	Porter Airlines	PD102 PD641 F93973
from $245 Find flight	06:45 Montreal Pierre Elliott Trudeau	20:00 Seattle Seattle-Tacoma Intl	16h 15m layover 2h 27m - Toronto 4h 15m - Los Angeles	Porter Airlines	PD102 PD663 HA6203
from $245 Find flight	16:00 Montreal Pierre Elliott Trudeau	15:53+1 день Seattle Seattle-Tacoma Intl	26h 53m layover 2h 40m - Toronto 15h 15m - Las Vegas	Air Transat	TS420 TS7230 NK781
from $249 Find flight	06:45 Montreal Pierre Elliott Trudeau	20:00 Seattle Seattle-Tacoma Intl	16h 15m layover 2h 27m - Toronto 4h 15m - Los Angeles	Porter Airlines	PD102 PD663 AS1301
from $249 Find flight	06:45 Montreal Pierre Elliott Trudeau	21:05 Seattle Seattle-Tacoma Intl	17h 20m layover 2h 27m - Toronto 5h 20m - Los Angeles	Porter Airlines	PD102 PD663 AS1093

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on August 05, 2025

Flight Schedule Montreal (Quebec) to Seattle (Washington)

Full flight schedule will help you in detecting at what time planes fly from Montreal to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
16:45 — 19:37	16:45 — 19:37 AC515 Air Canada Montreal — Seattle	5h 52m	Find flight from$333
16:45 — 19:31	16:45 — 19:31 UA8085 United Airlines Montreal — Seattle	5h 46m	Find flight from$366
17:30 — 16:09 +1 day	17:30 — 20:14 WS213 WestJet Montreal — Calgary 18h 51m stop 15:05 — 16:09 WS3617 WestJet Calgary — Seattle	25h 39m including layover	Find flight from$255
17:30 — 18:49 +1 day	17:30 — 20:14 WS213 WestJet Montreal — Calgary 21h 31m stop 17:45 — 18:49 WS3614 WestJet Calgary — Seattle	28h 19m including layover	Find flight from$255
18:40 — 09:43 +1 day	18:40 — 20:16 UA8687 United Airlines Montreal — Chicago 10h 59m stop 07:10 — 09:43 UA1005 United Airlines Chicago — Seattle	18h 3m including layover	Find flight from$272
06:45 — 11:33 +1 day	06:45 — 08:13 PD102 Porter Airlines Montreal — Toronto 1h 32m stop 09:45 — 12:10 PD663 Porter Airlines Toronto — Los Angeles 20h 28m stop 08:39 — 11:46 F92175 Frontier Airlines Los Angeles — Seattle	31h 48m including layover	Find flight from$238
06:45 — 09:59 +1 day	06:45 — 08:13 PD102 Porter Airlines Montreal — Toronto 1h 52m stop 10:05 — 11:40 PD641 Porter Airlines Toronto — Phoenix 19h 3m stop 06:43 — 09:59 F93973 Frontier Airlines Phoenix — Seattle	30h 14m including layover	Find flight from$243
07:00 — 20:35	07:00 — 08:25 PD2452 Porter Airlines Montreal — Toronto 1h 20m stop 09:45 — 11:15 PD2127 Porter Airlines Toronto — Newark 6h 15m stop 18:00 — 21:00 HA4901 Hawaiian Airlines Newark — Seattle	16h 35m including layover	Find flight from$272
08:10 — 11:24 +1 day	08:10 — 10:50 WS589 WestJet Montreal — Vancouver 6h 35m stop 17:25 — 20:23 WS1698 WestJet Vancouver — Los Angeles 12h 10m stop 08:33 — 11:24 F91177 Frontier Airlines Los Angeles — Seattle	30h 14m including layover	Find flight from$231
08:10 — 11:24 +2 days	08:10 — 10:50 WS589 WestJet Montreal — Vancouver 21h 55m stop 08:45 — 11:45 WS1696 WestJet Vancouver — Los Angeles 20h 48m stop 08:33 — 11:24 F91177 Frontier Airlines Los Angeles — Seattle	54h 14m including layover	Find flight from$243
10:45 — 22:00	10:45 — 12:10 PD2460 Porter Airlines Montreal — Toronto 40m stop 12:50 — 14:20 PD2133 Porter Airlines Toronto — New York 4h 30m stop 18:50 — 22:00 AS17 Alaska Airlines New York — Seattle	14h 15m including layover	Find flight from$263
10:45 — 22:32	10:45 — 12:10 PD2460 Porter Airlines Montreal — Toronto 2h 50m stop 15:00 — 16:30 PD2131 Porter Airlines Toronto — Newark 2h 59m stop 19:29 — 22:32 AS296 Alaska Airlines Newark — Seattle	14h 47m including layover	Find flight from$264
13:10 — 12:39 +1 day	13:10 — 14:35 PD2466 Porter Airlines Montreal — Toronto 1h stop 15:35 — 16:24 PD2393 Porter Airlines Toronto — Chicago 17h 41m stop 10:05 — 12:39 HA6295 Hawaiian Airlines Chicago — Seattle	26h 29m including layover	Find flight from$209
13:10 — 08:27 +1 day	13:10 — 14:35 PD2466 Porter Airlines Montreal — Toronto 1h stop 15:35 — 16:24 PD2393 Porter Airlines Toronto — Chicago 13h 36m stop 06:00 — 08:27 HA6176 Hawaiian Airlines Chicago — Seattle	22h 17m including layover	Find flight from$251
14:30 — 10:29 +1 day	14:30 — 15:55 PD2472 Porter Airlines Montreal — Toronto 1h 20m stop 17:15 — 18:45 PD2141 Porter Airlines Toronto — New York 12h 35m stop 07:20 — 10:29 HA4991 Hawaiian Airlines New York — Seattle	22h 59m including layover	Find flight from$259
15:10 — 14:25 +1 day	15:10 — 16:38 PD120 Porter Airlines Montreal — Toronto 3h 27m stop 20:05 — 21:58 PD655 Porter Airlines Toronto — Las Vegas 13h 42m stop 11:40 — 14:25 NK2327 Spirit Airlines Las Vegas — Seattle	26h 15m including layover	Find flight from$234
15:10 — 15:53 +1 day	15:10 — 16:38 PD120 Porter Airlines Montreal — Toronto 3h 27m stop 20:05 — 21:55 PD655 Porter Airlines Toronto — Las Vegas 15h 15m stop 13:10 — 15:53 NK781 Spirit Airlines Las Vegas — Seattle	27h 43m including layover	Find flight from$238
16:00 — 15:53 +1 day	16:00 — 17:25 TS420 Air Transat Montreal — Toronto 2h 40m stop 20:05 — 21:55 TS7230 Air Transat Toronto — Las Vegas 15h 15m stop 13:10 — 15:53 NK781 Spirit Airlines Las Vegas — Seattle	26h 53m including layover	Find flight from$245
16:45 — 00:10 +2 days	16:45 — 19:45 AC527 Air Canada Montreal — San Diego 23h 13m stop 18:58 — 20:17 NK2296 Spirit Airlines San Diego — Las Vegas 1h 15m stop 21:32 — 00:10 NK2625 Spirit Airlines Las Vegas — Seattle	34h 25m including layover	Find flight from$236
19:40 — 09:18 +1 day	19:40 — 22:30 PD389 Porter Airlines Montreal — Calgary 7h 50m stop 06:20 — 07:00 AC201 Air Canada Calgary — Vancouver 1h 15m stop 08:15 — 09:18 AC8798 Air Canada Vancouver — Seattle	16h 38m including layover	Find flight from$264

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on August 5, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Montreal to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Montreal and Seattle is 3677 miles. Time difference between the cities is 3h. Airplanes depart 05:00 to 22:30 from 4 Montreal airports and arrive 05:00 to 22:30 to 3 Seattle airports. Average flight time is 5h 49m.

The fastest flight 5h 46m
Average flight time 5h 49m
The earliest flight 05:00
The latest flight 22:30
Distance 2285 ml

The cheapest months to travel to Seattle are october (from 209 $), june (from 229 $), august (from 231 $).

The most expensive months are november (from 494 $), january (from 454 $), february (from 341 $).

What is the lowest airfare Montreal to Seattle?

The cheapest plane ticket found by our users is $209. This airfare is for economy class on one-way PD2466 flight by Porter Airlines for October 7, 2025 which leaves Pierre Elliott Trudeau in Montreal at 13:10 am and arrives at Seattle Seattle-Tacoma Intl at 12:39.

Economy class

$209

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Business class

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First class

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Popular Airlines on the Route

The flight Montreal — Seattle is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Air Canada - 248 departures per week at the price of from $ 236 . And the most expensive tickets are offered by Air Transat airline - from $ 575.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is UA8085 by United Airlines takes 5h 46m and the cheapest is PD2466 by Porter Airlines for $333.

AC - Air Canada

from $333

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UA - United Airlines

from $366

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Connecting Flights

There are 998 flights with layovers on the route. The fastest connecting flight is AC303 by Air Canada takes 7h 23m and the cheapest is PD2466 by Porter Airlines for $209.

AC - Air Canada

from $236

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PD - Porter Airlines

from $209

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P6 - P6

from $410

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DM - Aero-Charter

from $530

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WS - WestJet

from $231

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UA - United Airlines

from $272

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TS - Air Transat

from $245

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Airports

You can fly from Montreal to Seattle from 4 airports (St Lambert Rail Svce., Pierre Elliott Trudeau, Mirabel, St Hubert).

Montreal airports

St Lambert Rail Svce.-XLM

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Pierre Elliott Trudeau-YUL

from $209
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Mirabel-YMX

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St Hubert-YHU

from $410
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Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

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Kenmore Air Harbor SPB-LKE

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Airplanes

There are flights to Seattle from Montreal by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top International Destinations from Montreal

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Montreal — New York

from $73

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Montreal — Miami

from $60

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Montreal — Boston

from $68

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Montreal — Los Angeles

from $73

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Montreal — Las Vegas

from $56

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Montreal — Orlando

from $80

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Montreal — Chicago

from $75

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Montreal — San Francisco

from $77

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Montreal — Tampa

from $70

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Montreal — Washington D.C.

from $72

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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