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Seattle → Toronto

Dec 21, 2026 · return Dec 28, 2026

SEA → YYZ1 adulteconomyRound trip

8 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
8:33 amSEA
4h 32m
Nonstop
4:05 pmYYZ
Alaska Airlines
5:15 pmYYZ
5h 30m
Nonstop
7:45 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Air Canada
7:45 amSEA
4h 40m
Nonstop
3:25 pmYYZ
Air Canada
6:25 pmYYZ
5h 34m
Nonstop
8:59 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Dec 28

American Airlines
11:59 pmSEA
7h 57m
ORD · 2h 5m
10:56 am+1YYZ
American Airlines
3:15 pmYYZ
9h 31m
ORD · 2h 12m
9:46 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

United Airlines
8:30 amSEA
7h 7m
DEN · 1h 16m
6:37 pmYYZ
Air Canada
6:25 pmYYZ
5h 34m
Nonstop
8:59 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
6:00 amSEA
6h 59m
MSP · 1h 29m
3:59 pmYYZ
Delta Air Lines
5:49 pmYYZ
9h 16m
SLC · 2h 25m
12:05 am+1SEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
11:40 pmSEA
8h 16m
ORD · 2h 23m
10:56 am+1YYZ
Alaska Airlines
5:15 pmYYZ
5h 30m
Nonstop
7:45 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Air Canada
7:05 pmSEA
8h 9m
YVR · 2h 26m
6:14 am+1YYZ
Air Canada
6:25 pmYYZ
5h 34m
Nonstop
8:59 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

United Airlines
10:50 amSEA
7h 25m
ORD · 1h 17m
9:15 pmYYZ
Air Canada
6:25 pmYYZ
5h 34m
Nonstop
8:59 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ YYZ

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-28Alaska AirlinesAS385 / AS391$651.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28Air CanadaAC540 / AC543$665.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28American AirlinesAA2379 + AA6488 / AA3608 + AS262$595.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28United Airlines / Air CanadaUA1356 + AC1038 / AC543$637.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28Delta Air LinesDL943 + DL5504 / DL2468 + DL2998$637.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28Alaska AirlinesAS328 + AA6488 / AS391$630.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28Air CanadaAC8811 + AC126 / AC543$630.002026-10-29T02:06:40Z
2026-12-21 → 2026-12-28United Airlines / Air CanadaUA747 + UA2496 / AC543$637.002026-10-29T02:06:40Z

2026-12-21 → 2026-12-28 · $651.00

  • Alaska Airlines AS385: SEA 2026-12-21 08:33:00 → YYZ 2026-12-21 16:05:00; nonstop; 272 minutes. Local airport times.
  • Alaska Airlines AS391: YYZ 2026-12-28 17:15:00 → SEA 2026-12-28 19:45:00; nonstop; 330 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $665.00

  • Air Canada AC540: SEA 2026-12-21 07:45:00 → YYZ 2026-12-21 15:25:00; nonstop; 280 minutes. Local airport times.
  • Air Canada AC543: YYZ 2026-12-28 18:25:00 → SEA 2026-12-28 20:59:00; nonstop; 334 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $595.00

  • American Airlines AA2379 / AA6488: SEA 2026-12-21 23:59:00 → YYZ 2026-12-22 10:56:00; 1 stop(s) via ORD; 477 minutes. Local airport times.
    • AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 125 minutes.
    • AA6488: ORD 2026-12-22 08:00:00 → YYZ 2026-12-22 10:56:00.
  • American Airlines AA3608 / AS262: YYZ 2026-12-28 15:15:00 → SEA 2026-12-28 21:46:00; 1 stop(s) via ORD; 571 minutes. Local airport times.
    • AA3608: YYZ 2026-12-28 15:15:00 → ORD 2026-12-28 16:35:00; layover at ORD: 132 minutes.
    • AS262: ORD 2026-12-28 18:47:00 → SEA 2026-12-28 21:46:00.

2026-12-21 → 2026-12-28 · $637.00

  • United Airlines UA1356 / AC1038: SEA 2026-12-21 08:30:00 → YYZ 2026-12-21 18:37:00; 1 stop(s) via DEN; 427 minutes. Local airport times.
    • UA1356: SEA 2026-12-21 08:30:00 → DEN 2026-12-21 12:14:00; layover at DEN: 76 minutes.
    • AC1038: DEN 2026-12-21 13:30:00 → YYZ 2026-12-21 18:37:00.
  • Air Canada AC543: YYZ 2026-12-28 18:25:00 → SEA 2026-12-28 20:59:00; nonstop; 334 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $637.00

  • Delta Air Lines DL943 / DL5504: SEA 2026-12-21 06:00:00 → YYZ 2026-12-21 15:59:00; 1 stop(s) via MSP; 419 minutes. Local airport times.
    • DL943: SEA 2026-12-21 06:00:00 → MSP 2026-12-21 11:19:00; layover at MSP: 89 minutes.
    • DL5504: MSP 2026-12-21 12:48:00 → YYZ 2026-12-21 15:59:00.
  • Delta Air Lines DL2468 / DL2998: YYZ 2026-12-28 17:49:00 → SEA 2026-12-29 00:05:00; 1 stop(s) via SLC; 556 minutes. Local airport times.
    • DL2468: YYZ 2026-12-28 17:49:00 → SLC 2026-12-28 20:10:00; layover at SLC: 145 minutes.
    • DL2998: SLC 2026-12-28 22:35:00 → SEA 2026-12-29 00:05:00.

2026-12-21 → 2026-12-28 · $630.00

  • Alaska Airlines AS328 / AA6488: SEA 2026-12-21 23:40:00 → YYZ 2026-12-22 10:56:00; 1 stop(s) via ORD; 496 minutes. Local airport times.
    • AS328: SEA 2026-12-21 23:40:00 → ORD 2026-12-22 05:37:00; layover at ORD: 143 minutes.
    • AA6488: ORD 2026-12-22 08:00:00 → YYZ 2026-12-22 10:56:00.
  • Alaska Airlines AS391: YYZ 2026-12-28 17:15:00 → SEA 2026-12-28 19:45:00; nonstop; 330 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $630.00

  • Air Canada AC8811 / AC126: SEA 2026-12-21 19:05:00 → YYZ 2026-12-22 06:14:00; 1 stop(s) via YVR; 489 minutes. Local airport times.
    • AC8811: SEA 2026-12-21 19:05:00 → YVR 2026-12-21 21:09:00; layover at YVR: 146 minutes.
    • AC126: YVR 2026-12-21 23:35:00 → YYZ 2026-12-22 06:14:00.
  • Air Canada AC543: YYZ 2026-12-28 18:25:00 → SEA 2026-12-28 20:59:00; nonstop; 334 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $637.00

  • United Airlines UA747 / UA2496: SEA 2026-12-21 10:50:00 → YYZ 2026-12-21 21:15:00; 1 stop(s) via ORD; 445 minutes. Local airport times.
    • UA747: SEA 2026-12-21 10:50:00 → ORD 2026-12-21 17:00:00; layover at ORD: 77 minutes.
    • UA2496: ORD 2026-12-21 18:17:00 → YYZ 2026-12-21 21:15:00.
  • Air Canada AC543: YYZ 2026-12-28 18:25:00 → SEA 2026-12-28 20:59:00; nonstop; 334 minutes. Local airport times.

More dates for this route