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Flight INFO & Delta Air Lines(DL) flights from Montreal to Seattle

Cheapest one-way flight priceUS$197
Cheapest monthOctober
Peak season for travelJuly
Flight distance3,675.87 km
Popular airlineUnited Airlines

Book Delta Air Lines(DL) flights from Montreal to Seattle

  • One way
  • Round-trip
      • YUL14:35
        12h 24m
        1 stop
        SEA23:59
        Montreal - Seattle|Sat, Nov 15|Delta Air Lines
        US$221US$538
        59% OFF
        59% OFF
        US$538US$221

      • YUL14:37
        28h 59m
        2 stops
        SEA16:36
        Montreal - Seattle|Fri, Dec 12|Delta Air Lines
        US$234US$538
        56% OFF
        56% OFF
        US$538US$234

      • YUL07:10
        12h 50m
        1 stop
        SEA17:00
        Montreal - Seattle|Sun, Nov 23|Delta Air Lines
        US$239US$538
        56% OFF
        56% OFF
        US$538US$239

      • YUL12:45
        14h 14m
        1 stop
        SEA23:59
        Montreal - Seattle|Wed, Nov 19|Delta Air Lines
        US$245
        US$245

      • YUL07:10
        12h 50m
        1 stop
        SEA17:00
        Montreal - Seattle|Mon, Nov 17|Delta Air Lines
        US$246
        US$246

      • YUL18:20
        29h 38m
        2 stops
        SEA20:58
        Montreal - Seattle|Tue, Dec 23|Delta Air Lines
        US$262
        US$262

      • YUL07:10
        12h 50m
        1 stop
        SEA17:00
        Montreal - Seattle|Sun, Nov 16|Delta Air Lines
        US$278
        US$278

      • YUL07:10
        12h 50m
        1 stop
        SEA17:00
        Montreal - Seattle|Fri, Nov 14|Delta Air Lines
        US$279
        US$279

      • YUL12:50
        12h 25m
        1 stop
        SEA22:15
        Montreal - Seattle|Thu, Dec 11|Delta Air Lines
        US$279
        US$279

      • YUL14:40
        11h 51m
        1 stop
        SEA23:31
        Montreal - Seattle|Thu, Jan 1|Delta Air Lines
        US$280
        US$280

      • YUL14:40
        11h 51m
        1 stop
        SEA23:31
        Montreal - Seattle|Wed, Dec 31|Delta Air Lines
        US$316
        US$316

      • YUL12:50
        12h 25m
        1 stop
        SEA22:15
        Montreal - Seattle|Wed, Dec 17|Delta Air Lines
        US$376
        US$376

      • YUL06:00
        16h 37m
        2 stops
        SEA19:37
        Montreal - Seattle|Thu, Nov 13|Delta Air Lines
        US$378
        US$378

      • YUL07:00
        12h 47m
        1 stop
        SEA16:47
        Montreal - Seattle|Wed, Dec 24|Delta Air Lines
        US$403
        US$403

      • YUL12:50
        8h 50m
        1 stop
        SEA18:40
        Montreal - Seattle|Fri, Nov 28|Delta Air Lines
        US$420
        US$420

      • YUL07:10
        8h 47m
        1 stop
        SEA12:57
        Montreal - Seattle|Tue, Nov 18|Delta Air Lines
        US$438
        US$438

      • YUL07:10
        8h 47m
        1 stop
        SEA12:57
        Montreal - Seattle|Wed, Nov 12|Delta Air Lines
        US$495
        US$495

      • YMQ1:00 PM
        3h 5m
        Nonstop
        SEA2:00 PM
        Montreal - Seattle|Wed, Nov 19|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flights to Seattle

Delta Air Lines(DL) flights from Montreal to Seattle & Flight Schedule

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL5427

    Delta Air Lines

    07:00

    YUL

    3.0h

    Nonstop

    08:59

    MSP

    SMTWTFS
    Search

  2. DL889

    Delta Air Lines

    11:00

    MSP

    3.9h

    Nonstop

    12:53

    SEA

    SMTWTFS
    Search

  3. DL5148

    Delta Air Lines

    12:45

    YUL

    2.0h

    Nonstop

    14:46

    DTW

    SMTWTFS
    Search

  4. DL944

    Delta Air Lines

    16:35

    DTW

    5.0h

    Nonstop

    18:36

    SEA

    SMTWTFS
    Search

  5. DL2629

    Delta Air Lines

    12:45

    YUL

    2.9h

    Nonstop

    15:40

    ATL

    SMTWTFS
    Search

  6. DL903

    Delta Air Lines

    21:35

    ATL

    5.5h

    Nonstop

    00:03

    SEA

    SMTWTFS
    Search

  7. DL5148

    Delta Air Lines

    12:45

    YUL

    2.0h

    Nonstop

    14:46

    DTW

    SMTWTFS
    Search

  8. DL565

    Delta Air Lines

    20:10

    DTW

    5.1h

    Nonstop

    22:15

    SEA

    SMTWTFS
    Search

  9. DL2643

    Delta Air Lines

    07:00

    YUL

    3.1h

    Nonstop

    10:09

    ATL

    SMTWTFS
    Search

  10. DL481

    Delta Air Lines

    14:00

    ATL

    5.4h

    Nonstop

    16:22

    SEA

    SMTWTFS
    Search

  11. DL5427

    Delta Air Lines

    07:00

    YUL

    3.0h

    Nonstop

    08:59

    MSP

    SMTWTFS
    Search

  12. DL877

    Delta Air Lines

    15:11

    MSP

    3.8h

    Nonstop

    17:00

    SEA

    SMTWTFS
    Search

  13. DL5056

    Delta Air Lines

    06:00

    YUL

    2.0h

    Nonstop

    08:01

    DTW

    SMTWTFS
    Search

  14. DL634

    Delta Air Lines

    12:40

    DTW

    5.0h

    Nonstop

    14:41

    LAX

    SMTWTFS
    Search

  15. F91177

    Frontier Airlines

    21:36

    LAX

    3.1h

    Nonstop

    00:42

    SEA

    S--WTFS
    Search

  16. DL5499

    Delta Air Lines

    14:30

    YUL

    1.6h

    Nonstop

    16:06

    LGA

    SMTWTFS
    Search

  17. DL784

    Delta Air Lines

    20:10

    JFK

    4.8h

    Nonstop

    22:58

    PHX

    SM-WTFS
    Search

  18. F91723

    Frontier Airlines

    15:00

    PHX

    3.3h

    Nonstop

    17:17

    SEA

    S--WTFS
    Search

  19. DL2625

    Delta Air Lines

    18:15

    YUL

    3.1h

    Nonstop

    21:21

    ATL

    SMTWT-S
    Search

  20. DL1199

    Delta Air Lines

    22:45

    ATL

    2.1h

    Nonstop

    23:53

    ORD

    SMTWTFS
    Search

  21. HA6296

    Hawaiian Airlines

    17:51

    ORD

    4.7h

    Nonstop

    20:35

    SEA

    SM-WTFS
    Search
Show Less

Delta Air Lines(DL) flights from Montreal to Seattle Flight Booking FAQ

  • When is the best time to book flights from Montreal to Seattle?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Montreal to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

  • When are flight tickets from Montreal (YMQ) to Seattle (SEA) the cheapest?

    The cheapest months to fly from Montreal to Seattle is October, when demand for travel is lower.

  • Which upcoming date is cheapest to fly from Montreal to Seattle on?

    After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Montreal to Seattle on November 30, 2025 with WestJet, with prices starting at US$289.

  • Is there any time difference between Montreal and Seattle?

    The time difference between Seattle and Montreal is 3h.

  • How do I change or cancel my ticket from Montreal to Seattle?

    Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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