Build your own trip - YUL to SEA Skip navigation
Welcome - Already a member? Sign in
My Itineraries | My Account | Customer Support | Feedback

 Start search over
Change your search







Change Travelers
 1 Adult
  Change travelers

code share icon - Indicates flight is operated by another airline. Move your mouse over the icon for details.
Customer Support
Frequently Asked Questions (FAQs)
Montreal, PQ, Canada (YUL) to Seattle, WA (SEA)
 
All Results
Alaska Airlines
Alaska Airlines
Continental
Continental
Air Canada
Air Canada
Delta
Delta
Northwest
Northwest
American Airlines
American Airlines
UNITED
UNITED
US Airways
US Airways
Nonstop
---
---
---
---
---
---
---
---
---
1 stop
see below
2+ stops
see below
---
---
Note: Prices are per person for roundtrip travel; they are e-ticket prices and include all flight taxes and fees. If your itinerary requires paper tickets there will be an additional charge. Prices do not include baggage fees or other fees charged directly by the airline.
 1  Choose a departing flight or view complete roundtrips
Sort by:   checkedPrice   not checkedDuration   not checkedDeparture time   not checkedArrival time  
 
flight from  $531 Roundtrip
3:05 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:45 pm 		Mon 18-Jan
Duration: 9hr 40mn
Continental Continental Continental 3245 operated by /COLGAN AIR DBA CONTINENTAL CON3245
Alaska Airlines Alaska Airlines 7
Connect in Newark (EWR)
  Choose this departure
 
flight from  $541 Roundtrip
10:40 am Depart Montreal (YUL)
Arrive Seattle (SEA) 7:01 pm 		Mon 18-Jan
Duration: 11hr 21mn
Continental Continental Continental 3241 operated by /COLGAN AIR DBA CONTINENTAL CON3241
Delta Delta Delta 4226 operated by /COMPASS DBA DELTA CONNECTION4226  / Delta 3595 operated by Northwest3595
Connect in Newark (EWR), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $541 Roundtrip
10:40 am Depart Montreal (YUL)
Arrive Seattle (SEA) 7:01 pm 		Mon 18-Jan
Duration: 11hr 21mn
Continental Continental Continental 3241 operated by /COLGAN AIR DBA CONTINENTAL CON3241
Northwest Northwest Northwest 5717 operated by /COMPASS DBA DELTA CONNECTION5717  / 2161
Connect in Newark (EWR), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $541 Roundtrip
3:05 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 11:46 pm 		Mon 18-Jan
Duration: 11hr 41mn
Continental Continental Continental 3245 operated by /COLGAN AIR DBA CONTINENTAL CON3245
Delta Delta Delta 4886 operated by /COMPASS DBA DELTA CONNECTION4886  / Delta 2868 operated by Northwest2868
Connect in Newark (EWR), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $547 Roundtrip
6:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 38mn
Continental Continental Continental 2043 operated by /EXPRESSJET AIRLINES INC DBA CO2043
Northwest Northwest Northwest 3343 operated by /MESABA DBA DELTA CONNECTION3343  / 2113
Connect in Cleveland (Hopkins Intl.), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $547 Roundtrip
6:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 38mn
Continental Continental Continental 2043 operated by /EXPRESSJET AIRLINES INC DBA CO2043
Delta Delta Delta 4146 operated by /MESABA DBA DELTA CONNECTION4146  / Delta 7547 operated by Northwest7547
Connect in Cleveland (Hopkins Intl.), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $618 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:20 pm 		Mon 18-Jan
Duration: 11hr 20mn
Continental Continental Continental 3601 operated by /JAZZ DBA AIR CANADA3601  / 1739
Connect in Houston (IAH)
  Choose this departure
 
flight from  $619 Roundtrip
1:40 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:27 pm 		Mon 18-Jan
Duration: 8hr 47mn
Air Canada Air Canada 183  / Air Canada 8099 operated by /JAZZ8099
Connect in Vancouver (Vancouver Intl.)
  Choose this departure
 
flight from  $622 Roundtrip
6:15 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 11:15 pm 		Mon 18-Jan
Duration: 8hr 0mn
American Airlines American Airlines American Airlines 4079 operated by /AMERICAN EAGLE4079  / 1377
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $622 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 10:57 am 		Mon 18-Jan
Duration: 8hr 12mn
Delta Delta Delta 1446 operated by /PINNACLE DBA DELTA CONNECTION1446  / Delta 7750 operated by Northwest7750
Connect in Detroit (DTW)
  Choose this departure
 
flight from  $622 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 10:57 am 		Mon 18-Jan
Duration: 8hr 12mn
Northwest Northwest Northwest 3683 operated by /PINNACLE DBA DELTA CONNECTION3683  / 2201
Connect in Detroit (DTW)
  Choose this departure
 
flight from  $622 Roundtrip
4:10 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:51 pm 		Mon 18-Jan
Duration: 8hr 41mn
Northwest Northwest Northwest 3681 operated by /PINNACLE DBA DELTA CONNECTION3681  / 2121
Connect in Detroit (DTW)
  Choose this departure
 
flight from  $622 Roundtrip
4:10 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:51 pm 		Mon 18-Jan
Duration: 8hr 41mn
Delta Delta Delta 1444 operated by /PINNACLE DBA DELTA CONNECTION1444  / Delta 2679 operated by Northwest2679
Connect in Detroit (DTW)
  Choose this departure
 
flight from  $622 Roundtrip
5:30 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 11:46 pm 		Mon 18-Jan
Duration: 9hr 16mn
Northwest Northwest Northwest 3481 operated by /MESABA DBA DELTA CONNECTION3481  / 2330
Connect in Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $622 Roundtrip
5:30 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 11:46 pm 		Mon 18-Jan
Duration: 9hr 16mn
Delta Delta Delta 1412 operated by /MESABA DBA DELTA CONNECTION1412  / Delta 2868 operated by Northwest2868
Connect in Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $622 Roundtrip
4:20 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 11:15 pm 		Mon 18-Jan
Duration: 9hr 55mn
American Airlines American Airlines American Airlines 3856 operated by /AMERICAN EAGLE3856  / 1377
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $622 Roundtrip
10:52 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:53 pm 		Mon 18-Jan
Duration: 10hr 1mn
Delta Delta Delta 4330 operated by /PINNACLE DBA DELTA CONNECTION4330  / Delta 2960 operated by Northwest2960
Connect in Detroit (DTW)
  Choose this departure
 
flight from  $622 Roundtrip
11:10 am Depart Montreal (YUL)
Arrive Seattle (SEA) 6:35 pm 		Mon 18-Jan
Duration: 10hr 25mn
American Airlines American Airlines American Airlines 3823 operated by /AMERICAN EAGLE3823  / 425
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $623 Roundtrip
12:00 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 6:29 pm 		Mon 18-Jan
Duration: 9hr 29mn
Air Canada Air Canada Air Canada 8971 operated by /JAZZ8971  / 131  / Air Canada 8303 operated by /JAZZ8303
Connect in Ottawa (Macdonald-Cartier Intl.), Calgary (YYC)
  Choose this departure
 
flight from  $627 Roundtrip
3:00 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:47 pm 		Mon 18-Jan
Duration: 7hr 47mn
Air Canada Air Canada 417  / 541
Connect in Toronto (YYZ)
  Choose this departure
 
flight from  $627 Roundtrip
2:00 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:47 pm 		Mon 18-Jan
Duration: 8hr 47mn
Air Canada Air Canada 415  / 541
Connect in Toronto (YYZ)
  Choose this departure
 
flight from  $632 Roundtrip
2:35 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:25 pm 		Mon 18-Jan
Duration: 7hr 50mn
UNITED UNITED UNITED 7630 operated by /UNITED EXPRESS/SHUTTLE AMERICA7630  / 929
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $632 Roundtrip
2:29 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 8:05 pm 		Mon 18-Jan
Duration: 8hr 36mn
UNITED UNITED UNITED 8052 operated by /UNITED EXPRESS/TRANS STATES AI8052  / 917
Connect in Washington (IAD)
  Choose this departure
 
flight from  $632 Roundtrip
9:38 am Depart Montreal (YUL)
Arrive Seattle (SEA) 3:29 pm 		Mon 18-Jan
Duration: 8hr 51mn
UNITED UNITED UNITED 7541 operated by /UNITED EXPRESS/SHUTTLE AMERICA7541  / 197
Connect in Washington (IAD)
  Choose this departure
 
flight from  $632 Roundtrip
8:05 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:57 pm 		Mon 18-Jan
Duration: 8hr 52mn
UNITED UNITED UNITED 8262 operated by Air Canada8262  / 339
Connect in Denver (Denver Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
2:10 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 8:05 pm 		Mon 18-Jan
Duration: 8hr 55mn
UNITED UNITED UNITED 8444 operated by AC /JAZZ8444  / 917
Connect in Washington (IAD)
  Choose this departure
 
flight from  $632 Roundtrip
8:30 am Depart Montreal (YUL)
Arrive Seattle (SEA) 2:35 pm 		Mon 18-Jan
Duration: 9hr 5mn
UNITED UNITED UNITED 7585 operated by /UNITED EXPRESS/SHUTTLE AMERICA7585  / 355
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $632 Roundtrip
12:23 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:25 pm 		Mon 18-Jan
Duration: 10hr 2mn
UNITED UNITED UNITED 7597 operated by /UNITED EXPRESS/SHUTTLE AMERICA7597  / 929
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $632 Roundtrip
1:26 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:02 pm 		Mon 18-Jan
Duration: 10hr 36mn
US Airways US Airways US Airways 3687 operated by /US AIRWAYS EXPRESS-AIR WISCONS3687  / 1547
Connect in Philadelphia (Philadelphia Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 4:48 pm 		Mon 18-Jan
Duration: 10hr 48mn
Delta Delta Delta 1448 operated by /PINNACLE DBA DELTA CONNECTION1448  / Delta 2779 operated by Northwest2779  / 1265
Connect in Detroit (DTW), Salt Lake City (SLC)
  Choose this departure
 
flight from  $632 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 53mn
Delta Delta Delta 1446 operated by /PINNACLE DBA DELTA CONNECTION1446  / Delta 2861 operated by Northwest2861  / Delta 7547 operated by Northwest7547
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 53mn
Northwest Northwest Northwest 3683 operated by /PINNACLE DBA DELTA CONNECTION3683  / 2157  / 2113
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 53mn
Delta Delta Delta 1446 operated by /PINNACLE DBA DELTA CONNECTION1446  / Delta 2928 operated by Northwest2928  / Delta 7547 operated by Northwest7547
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
5:45 am Depart Montreal (YUL)
Arrive Seattle (SEA) 1:38 pm 		Mon 18-Jan
Duration: 10hr 53mn
Northwest Northwest Northwest 3683 operated by /PINNACLE DBA DELTA CONNECTION3683  / 2393  / 2113
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
10:52 am Depart Montreal (YUL)
Arrive Seattle (SEA) 7:01 pm 		Mon 18-Jan
Duration: 11hr 9mn
Delta Delta Delta 4330 operated by /PINNACLE DBA DELTA CONNECTION4330  / Delta 3586 operated by Northwest3586  / Delta 3595 operated by Northwest3595
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
10:52 am Depart Montreal (YUL)
Arrive Seattle (SEA) 7:01 pm 		Mon 18-Jan
Duration: 11hr 9mn
Northwest Northwest Northwest 4054 operated by /PINNACLE DBA DELTA CONNECTION4054  / 2141  / 2161
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:11 pm 		Mon 18-Jan
Duration: 11hr 11mn
Delta Delta Delta 1448 operated by /PINNACLE DBA DELTA CONNECTION1448  / Delta 2929 operated by Northwest2929  / Delta 7110 operated by Northwest7110
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:11 pm 		Mon 18-Jan
Duration: 11hr 11mn
Northwest Northwest Northwest 3685 operated by /PINNACLE DBA DELTA CONNECTION3685  / 7263  / 2159
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:11 pm 		Mon 18-Jan
Duration: 11hr 11mn
Northwest Northwest Northwest 3685 operated by /PINNACLE DBA DELTA CONNECTION3685  / 2163  / 2159
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $632 Roundtrip
9:00 am Depart Montreal (YUL)
Arrive Seattle (SEA) 5:11 pm 		Mon 18-Jan
Duration: 11hr 11mn
Delta Delta Delta 1448 operated by /PINNACLE DBA DELTA CONNECTION1448  / Delta 4358 operated by Northwest4358  / Delta 7110 operated by Northwest7110
Connect in Detroit (DTW), Minneapolis (Minneapolis - St. Paul Intl.)
  Choose this departure
 
flight from  $642 Roundtrip
12:23 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 7:32 pm 		Mon 18-Jan
Duration: 10hr 9mn
UNITED UNITED UNITED 7597 operated by /UNITED EXPRESS/SHUTTLE AMERICA7597  / 643  / UNITED 5795 operated by /UNITED EXPRESS/SKYWEST AIRLINE5795
Connect in Chicago (ORD), Portland (PDX)
  Choose this departure
 
flight from  $642 Roundtrip
2:35 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:52 pm 		Mon 18-Jan
Duration: 10hr 17mn
UNITED UNITED UNITED 7630 operated by /UNITED EXPRESS/SHUTTLE AMERICA7630  / 949  / UNITED 6810 operated by /UNITED EXPRESS/SKYWEST AIRLINE6810
Connect in Chicago (ORD), Portland (PDX)
  Choose this departure
 
flight from  $642 Roundtrip
3:20 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 10:51 pm 		Mon 18-Jan
Duration: 10hr 31mn
UNITED UNITED UNITED 8186 operated by Air Canada8186  / UNITED 7717 operated by /UNITED EXPRESS/SHUTTLE AMERICA7717  / 117
Connect in New York (LGA), Chicago (ORD)
  Choose this departure
 
flight from  $690 Roundtrip
8:05 am Depart Montreal (YUL)
Arrive Seattle (SEA) 2:07 pm 		Mon 18-Jan
Duration: 9hr 2mn
UNITED UNITED UNITED 8262 operated by Air Canada8262
Northwest Northwest Northwest 7509 operated by Alaska Airlines7509
Connect in Denver (Denver Intl.)
  Choose this departure
 
flight from  $690 Roundtrip
8:05 am Depart Montreal (YUL)
Arrive Seattle (SEA) 2:07 pm 		Mon 18-Jan
Duration: 9hr 2mn
UNITED UNITED UNITED 8262 operated by Air Canada8262
Delta Delta Delta 9092 operated by Alaska Airlines9092
Connect in Denver (Denver Intl.)
  Choose this departure
 
flight from  $721 Roundtrip
1:45 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 6:29 pm 		Mon 18-Jan
Duration: 7hr 44mn
Air Canada Air Canada 187  / Air Canada 8303 operated by /JAZZ8303
Connect in Calgary (YYC)
  Choose this departure
 
flight from  $824 Roundtrip
7:20 am Depart Montreal (YUL)
Arrive Seattle (SEA) 12:28 pm 		Mon 18-Jan
Duration: 8hr 8mn
UNITED UNITED UNITED 8371 operated by AC /JAZZ8371  / 331
Connect in Chicago (ORD)
  Choose this departure
 
flight from  $833 Roundtrip
1:00 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:23 pm 		Mon 18-Jan
Duration: 11hr 23mn
Delta Delta Delta 5443 operated by /ASA DBA DELTA CONNECTION5443  / 1061
Connect in Atlanta (Hartsfield-Jackson Atlanta Intl.)
  Choose this departure
 
flight select to check price
4:20 pm Depart Montreal (YUL)
Arrive Seattle (SEA) 9:54 pm 		Mon 18-Jan
Duration: 8hr 34mn
Alaska Airlines Alaska Airlines Alaska Airlines 4371 operated by /AMERICAN EAGLE4371  / 29
Connect in Chicago (ORD)
  Choose this departure
 
flight select to check price
8:05 am Depart Montreal (YUL)
Arrive Seattle (SEA) 2:07 pm 		Mon 18-Jan
Duration: 9hr 2mn
UNITED UNITED UNITED 8262 operated by Air Canada8262
Alaska Airlines Alaska Airlines 671
Connect in Denver (Denver Intl.)
  Choose this departure
Expedia Information:  
about Expedia| add your hotel| press room| investor relations| Expedia terms of use| updated privacy policy| about our ads| become an affiliate| advertising| jobs| feedback

Expedia Links:   home| flights| hotels| cars| cruises| earn ThankYou Points| Elite Plus| Egencia| site map
Expedia, Inc. is not responsible for content on external Web sites. ©2009 Expedia, Inc. All rights reserved.
Photos: Getty Images, Corbis
Plus sign (+) means taxes and fees are additional.
International sites:
Australia| Canada| China| Denmark| France| Germany| India| Italy| Japan| Mexico| Netherlands| New Zealand| Norway| Spain| Sweden| United Kingdom