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Route overview: Seattle to Montreal (YUL) flight deals

Seattle (SEA) to Montreal (YUL), May 12, 2027: round trips from $555, one way from $295

Seattle (SEA) to Montreal (YUL), May 12, 2027: round trips from $555, one way from $295 on Axel, checked Oct 29, 2026. Lowest published fares: $555 round trip, Axel-exclusive, American Airlines, 1 stop, May 12–13, 2027; $295 one way, Axel-exclusive, Alaska Airlines, 1 stop, May 12, 2027; 1 adult, economy, checked Oct 29, 2026.

SEA → YUL1 adulteconomyOne way and round trips

30 flight options · 5 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

May 2027

Flights for your trip

  1. Wed, May 12 · One way

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Wed, May 12 · One way

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Wed, May 12 – Thu, May 13

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Wed, May 12 – Thu, May 13

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    3:10 pmYUL
    8h 49m
    YYZ · 1h 39m
    8:59 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Wed, May 12 – Fri, May 14

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Wed, May 12 – Fri, May 14

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Delta Air Lines
    12:43 pmYUL
    11h 7m
    ATL · 2h 29m
    8:50 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Wed, May 12 – Sat, May 15

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Wed, May 12 – Sat, May 15

    United Airlines
    8:09 amSEA
    8h 39m
    IAD · 1h 38m
    7:48 pmYUL
    United Airlines
    3:00 pmYUL
    11h 30m
    EWR · 3h 15m
    11:30 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Wed, May 12 – Sun, May 16

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Wed, May 12 – Sun, May 16

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    8:45 amYUL
    8h 47m
    YVR · 2h 10m
    2:32 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Wed, May 12 – Tue, May 18

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Wed, May 12 – Tue, May 18

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    3:10 pmYUL
    8h 49m
    YYZ · 1h 39m
    8:59 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Wed, May 12 – Wed, May 19

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Wed, May 12 – Wed, May 19

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    3:10 pmYUL
    8h 49m
    YYZ · 1h 39m
    8:59 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Wed, May 12 – Thu, May 20

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Wed, May 12 – Thu, May 20

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    3:10 pmYUL
    8h 49m
    YYZ · 1h 39m
    8:59 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Wed, May 12 – Sat, May 22

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Wed, May 12 – Sat, May 22

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    3:10 pmYUL
    8h 49m
    YYZ · 1h 39m
    8:59 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Wed, May 12 – Sun, May 23

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Wed, May 12 – Sun, May 23

    Alaska Airlines
    11:40 pmSEA
    8h 52m
    ORD · 2h 29m
    11:32 am+1YUL
    Air Canada
    8:45 amYUL
    8h 47m
    YVR · 2h 10m
    2:32 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Wed, May 12 – Mon, May 24

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Wed, May 12 – Mon, May 24

    United Airlines
    8:09 amSEA
    8h 39m
    IAD · 1h 38m
    7:48 pmYUL
    United Airlines
    3:00 pmYUL
    11h 30m
    EWR · 3h 15m
    11:30 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Wed, May 12 – Wed, May 26

    American Airlines
    11:59 pmSEA
    8h 33m
    ORD · 2h 11m
    11:32 am+1YUL
    American Airlines
    12:08 pmYUL
    11h 12m
    ORD · 3h 12m
    8:20 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Wed, May 12 – Wed, May 26

    United Airlines
    8:09 amSEA
    8h 39m
    IAD · 1h 38m
    7:48 pmYUL
    United Airlines
    3:00 pmYUL
    11h 30m
    EWR · 3h 15m
    11:30 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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1 of 24

Make this trip yours

SEA ⇄ YUL

Economy

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Explore this route

All dates for this routeMay 11, 2027 · Return optionsMay 13, 2027 · Return optionsHotels in Montreal with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to Montreal (YUL), May 12, 2027: round trips from $555, one way from $295 on Axel, checked Oct 29, 2026. Lowest published fares: $555 round trip, Axel-exclusive, American Airlines, 1 stop, May 12–13, 2027; $295 one way, Axel-exclusive, Alaska Airlines, 1 stop, May 12, 2027; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2027-05-12 · one wayAlaska AirlinesAS328 + AA360023:40:00→11:32:00 8h 52m 1 stop via ORDAxel-exclusive $295.002026-10-29T01:16:54Z
2027-05-12 · one wayAmerican AirlinesAA2379 + AA360023:59:00→11:32:00 8h 33m 1 stop via ORDAxel-exclusive $300.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-13American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-13Alaska Airlines / Air CanadaAS328 + AA3600 / AC417 + AC54323:40:00→11:32:00 8h 52m 1 stop via ORD · 15:10:00→20:59:00 8h 49m 1 stop via YYZAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-14American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-14Alaska Airlines / Delta Air LinesAS328 + AA3600 / DL2629 + DL71423:40:00→11:32:00 8h 52m 1 stop via ORD · 12:43:00→20:50:00 11h 07m 1 stop via ATLAxel-exclusive $560.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-15American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-15United AirlinesUA1348 + UA3602 / UA3623 + UA57308:09:00→19:48:00 8h 39m 1 stop via IAD · 15:00:00→23:30:00 11h 30m 1 stop via EWRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-16American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-16Alaska Airlines / Air CanadaAS328 + AA3600 / AC303 + AC880423:40:00→11:32:00 8h 52m 1 stop via ORD · 08:45:00→14:32:00 8h 47m 1 stop via YVRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-17American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-17United AirlinesUA1348 + UA3602 / UA3623 + UA57308:09:00→19:48:00 8h 39m 1 stop via IAD · 15:00:00→23:30:00 11h 30m 1 stop via EWRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-18American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-18Alaska Airlines / Air CanadaAS328 + AA3600 / AC417 + AC54323:40:00→11:32:00 8h 52m 1 stop via ORD · 15:10:00→20:59:00 8h 49m 1 stop via YYZAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-19American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-19Alaska Airlines / Air CanadaAS328 + AA3600 / AC417 + AC54323:40:00→11:32:00 8h 52m 1 stop via ORD · 15:10:00→20:59:00 8h 49m 1 stop via YYZAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-20American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-20Alaska Airlines / Air CanadaAS328 + AA3600 / AC417 + AC54323:40:00→11:32:00 8h 52m 1 stop via ORD · 15:10:00→20:59:00 8h 49m 1 stop via YYZAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-21American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-21Alaska Airlines / Delta Air LinesAS328 + AA3600 / DL2629 + DL71423:40:00→11:32:00 8h 52m 1 stop via ORD · 12:43:00→20:50:00 11h 07m 1 stop via ATLAxel-exclusive $560.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-22American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-22Alaska Airlines / Air CanadaAS328 + AA3600 / AC417 + AC54323:40:00→11:32:00 8h 52m 1 stop via ORD · 15:10:00→20:59:00 8h 49m 1 stop via YYZAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-23American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-23Alaska Airlines / Air CanadaAS328 + AA3600 / AC303 + AC880423:40:00→11:32:00 8h 52m 1 stop via ORD · 08:45:00→14:32:00 8h 47m 1 stop via YVRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-24American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-24United AirlinesUA1348 + UA3602 / UA3623 + UA57308:09:00→19:48:00 8h 39m 1 stop via IAD · 15:00:00→23:30:00 11h 30m 1 stop via EWRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-25American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-25United AirlinesUA1348 + UA3602 / UA3623 + UA57308:09:00→19:48:00 8h 39m 1 stop via IAD · 15:00:00→23:30:00 11h 30m 1 stop via EWRAxel-exclusive $565.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-26American AirlinesAA2379 + AA3600 / AA3600 + AA121123:59:00→11:32:00 8h 33m 1 stop via ORD · 12:08:00→20:20:00 11h 12m 1 stop via ORDAxel-exclusive $555.002026-10-29T01:16:54Z
2027-05-12 → 2027-05-26United AirlinesUA1348 + UA3602 / UA3623 + UA57308:09:00→19:48:00 8h 39m 1 stop via IAD · 15:00:00→23:30:00 11h 30m 1 stop via EWRAxel-exclusive $565.002026-10-29T01:16:54Z

Hotels in Montreal for these trips

Hotels: under a trip, hotels in Montreal for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Montreal

Route overview: Seattle to Montreal (YUL) flight deals

2027-05-12 · one way · Axel-exclusive $295.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.

2027-05-12 · one way · Axel-exclusive $300.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.

2027-05-12 → 2027-05-13 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-13 12:08:00 → SEA 2027-05-13 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-13 12:08:00 → ORD 2027-05-13 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-13 17:25:00 → SEA 2027-05-13 20:20:00.

2027-05-12 → 2027-05-13 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC417 / AC543: YUL 2027-05-13 15:10:00 → SEA 2027-05-13 20:59:00; 1 stop(s) via YYZ; 529 minutes. Local airport times.
    • AC417: YUL 2027-05-13 15:10:00 → YYZ 2027-05-13 16:46:00; layover at YYZ: 99 minutes.
    • AC543: YYZ 2027-05-13 18:25:00 → SEA 2027-05-13 20:59:00.

2027-05-12 → 2027-05-14 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-14 12:08:00 → SEA 2027-05-14 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-14 12:08:00 → ORD 2027-05-14 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-14 17:25:00 → SEA 2027-05-14 20:20:00.

2027-05-12 → 2027-05-14 · Axel-exclusive $560.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Delta Air Lines DL2629 / DL714: YUL 2027-05-14 12:43:00 → SEA 2027-05-14 20:50:00; 1 stop(s) via ATL; 667 minutes. Local airport times.
    • DL2629: YUL 2027-05-14 12:43:00 → ATL 2027-05-14 15:44:00; layover at ATL: 149 minutes.
    • DL714: ATL 2027-05-14 18:13:00 → SEA 2027-05-14 20:50:00.

2027-05-12 → 2027-05-15 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-15 12:08:00 → SEA 2027-05-15 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-15 12:08:00 → ORD 2027-05-15 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-15 17:25:00 → SEA 2027-05-15 20:20:00.

2027-05-12 → 2027-05-15 · Axel-exclusive $565.00

  • United Airlines UA1348 / UA3602: SEA 2027-05-12 08:09:00 → YUL 2027-05-12 19:48:00; 1 stop(s) via IAD; 519 minutes. Local airport times.
    • UA1348: SEA 2027-05-12 08:09:00 → IAD 2027-05-12 16:08:00; layover at IAD: 98 minutes.
    • UA3602: IAD 2027-05-12 17:46:00 → YUL 2027-05-12 19:48:00.
  • United Airlines UA3623 / UA573: YUL 2027-05-15 15:00:00 → SEA 2027-05-15 23:30:00; 1 stop(s) via EWR; 690 minutes. Local airport times.
    • UA3623: YUL 2027-05-15 15:00:00 → EWR 2027-05-15 16:53:00; layover at EWR: 195 minutes.
    • UA573: EWR 2027-05-15 20:08:00 → SEA 2027-05-15 23:30:00.

2027-05-12 → 2027-05-16 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-16 12:08:00 → SEA 2027-05-16 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-16 12:08:00 → ORD 2027-05-16 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-16 17:25:00 → SEA 2027-05-16 20:20:00.

2027-05-12 → 2027-05-16 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC303 / AC8804: YUL 2027-05-16 08:45:00 → SEA 2027-05-16 14:32:00; 1 stop(s) via YVR; 527 minutes. Local airport times.
    • AC303: YUL 2027-05-16 08:45:00 → YVR 2027-05-16 11:20:00; layover at YVR: 130 minutes.
    • AC8804: YVR 2027-05-16 13:30:00 → SEA 2027-05-16 14:32:00.

2027-05-12 → 2027-05-18 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-18 12:08:00 → SEA 2027-05-18 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-18 12:08:00 → ORD 2027-05-18 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-18 17:25:00 → SEA 2027-05-18 20:20:00.

2027-05-12 → 2027-05-18 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC417 / AC543: YUL 2027-05-18 15:10:00 → SEA 2027-05-18 20:59:00; 1 stop(s) via YYZ; 529 minutes. Local airport times.
    • AC417: YUL 2027-05-18 15:10:00 → YYZ 2027-05-18 16:46:00; layover at YYZ: 99 minutes.
    • AC543: YYZ 2027-05-18 18:25:00 → SEA 2027-05-18 20:59:00.

2027-05-12 → 2027-05-19 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-19 12:08:00 → SEA 2027-05-19 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-19 12:08:00 → ORD 2027-05-19 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-19 17:25:00 → SEA 2027-05-19 20:20:00.

2027-05-12 → 2027-05-19 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC417 / AC543: YUL 2027-05-19 15:10:00 → SEA 2027-05-19 20:59:00; 1 stop(s) via YYZ; 529 minutes. Local airport times.
    • AC417: YUL 2027-05-19 15:10:00 → YYZ 2027-05-19 16:46:00; layover at YYZ: 99 minutes.
    • AC543: YYZ 2027-05-19 18:25:00 → SEA 2027-05-19 20:59:00.

2027-05-12 → 2027-05-20 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-20 12:08:00 → SEA 2027-05-20 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-20 12:08:00 → ORD 2027-05-20 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-20 17:25:00 → SEA 2027-05-20 20:20:00.

2027-05-12 → 2027-05-20 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC417 / AC543: YUL 2027-05-20 15:10:00 → SEA 2027-05-20 20:59:00; 1 stop(s) via YYZ; 529 minutes. Local airport times.
    • AC417: YUL 2027-05-20 15:10:00 → YYZ 2027-05-20 16:46:00; layover at YYZ: 99 minutes.
    • AC543: YYZ 2027-05-20 18:25:00 → SEA 2027-05-20 20:59:00.

2027-05-12 → 2027-05-22 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-22 12:08:00 → SEA 2027-05-22 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-22 12:08:00 → ORD 2027-05-22 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-22 17:25:00 → SEA 2027-05-22 20:20:00.

2027-05-12 → 2027-05-22 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC417 / AC543: YUL 2027-05-22 15:10:00 → SEA 2027-05-22 20:59:00; 1 stop(s) via YYZ; 529 minutes. Local airport times.
    • AC417: YUL 2027-05-22 15:10:00 → YYZ 2027-05-22 16:46:00; layover at YYZ: 99 minutes.
    • AC543: YYZ 2027-05-22 18:25:00 → SEA 2027-05-22 20:59:00.

2027-05-12 → 2027-05-23 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-23 12:08:00 → SEA 2027-05-23 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-23 12:08:00 → ORD 2027-05-23 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-23 17:25:00 → SEA 2027-05-23 20:20:00.

2027-05-12 → 2027-05-23 · Axel-exclusive $565.00

  • Alaska Airlines AS328 / AA3600: SEA 2027-05-12 23:40:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 532 minutes. Local airport times.
    • AS328: SEA 2027-05-12 23:40:00 → ORD 2027-05-13 05:37:00; layover at ORD: 149 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • Air Canada AC303 / AC8804: YUL 2027-05-23 08:45:00 → SEA 2027-05-23 14:32:00; 1 stop(s) via YVR; 527 minutes. Local airport times.
    • AC303: YUL 2027-05-23 08:45:00 → YVR 2027-05-23 11:20:00; layover at YVR: 130 minutes.
    • AC8804: YVR 2027-05-23 13:30:00 → SEA 2027-05-23 14:32:00.

2027-05-12 → 2027-05-24 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-24 12:08:00 → SEA 2027-05-24 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-24 12:08:00 → ORD 2027-05-24 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-24 17:25:00 → SEA 2027-05-24 20:20:00.

2027-05-12 → 2027-05-24 · Axel-exclusive $565.00

  • United Airlines UA1348 / UA3602: SEA 2027-05-12 08:09:00 → YUL 2027-05-12 19:48:00; 1 stop(s) via IAD; 519 minutes. Local airport times.
    • UA1348: SEA 2027-05-12 08:09:00 → IAD 2027-05-12 16:08:00; layover at IAD: 98 minutes.
    • UA3602: IAD 2027-05-12 17:46:00 → YUL 2027-05-12 19:48:00.
  • United Airlines UA3623 / UA573: YUL 2027-05-24 15:00:00 → SEA 2027-05-24 23:30:00; 1 stop(s) via EWR; 690 minutes. Local airport times.
    • UA3623: YUL 2027-05-24 15:00:00 → EWR 2027-05-24 16:53:00; layover at EWR: 195 minutes.
    • UA573: EWR 2027-05-24 20:08:00 → SEA 2027-05-24 23:30:00.

2027-05-12 → 2027-05-26 · Axel-exclusive $555.00

  • American Airlines AA2379 / AA3600: SEA 2027-05-12 23:59:00 → YUL 2027-05-13 11:32:00; 1 stop(s) via ORD; 513 minutes. Local airport times.
    • AA2379: SEA 2027-05-12 23:59:00 → ORD 2027-05-13 05:55:00; layover at ORD: 131 minutes.
    • AA3600: ORD 2027-05-13 08:06:00 → YUL 2027-05-13 11:32:00.
  • American Airlines AA3600 / AA1211: YUL 2027-05-26 12:08:00 → SEA 2027-05-26 20:20:00; 1 stop(s) via ORD; 672 minutes. Local airport times.
    • AA3600: YUL 2027-05-26 12:08:00 → ORD 2027-05-26 14:13:00; layover at ORD: 192 minutes.
    • AA1211: ORD 2027-05-26 17:25:00 → SEA 2027-05-26 20:20:00.

2027-05-12 → 2027-05-26 · Axel-exclusive $565.00

  • United Airlines UA1348 / UA3602: SEA 2027-05-12 08:09:00 → YUL 2027-05-12 19:48:00; 1 stop(s) via IAD; 519 minutes. Local airport times.
    • UA1348: SEA 2027-05-12 08:09:00 → IAD 2027-05-12 16:08:00; layover at IAD: 98 minutes.
    • UA3602: IAD 2027-05-12 17:46:00 → YUL 2027-05-12 19:48:00.
  • United Airlines UA3623 / UA573: YUL 2027-05-26 15:00:00 → SEA 2027-05-26 23:30:00; 1 stop(s) via EWR; 690 minutes. Local airport times.
    • UA3623: YUL 2027-05-26 15:00:00 → EWR 2027-05-26 16:53:00; layover at EWR: 195 minutes.
    • UA573: EWR 2027-05-26 20:08:00 → SEA 2027-05-26 23:30:00.

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For AI assistants

  • This page: Seattle (SEA) to Montreal (YUL) · May 12, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Montreal for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle to Montreal (YUL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.