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Seattle to Toronto fares median $286 over the last 30 days; watch for dips toward $185 and book when you see them.
Written from this route's 30-day price index (27 daily samples). Article last regenerated Oct 31, 2026.
See full numbers and stats on the SEA → YYZ price history page.
Over the last 30 days, Seattle–Toronto fares showed a median of $286, but the range tells the real story: prices stretched from a low of $178 to a high of $413, a spread of roughly 132%. That's a wide band for a single route, meaning the fare you're quoted can depend heavily on exactly when you check, not just how far out you book. The middle half of observed fares fell between $185 and $321, so even typical pricing swings by well over $100.
We don't have booking-horizon data (how far in advance each fare was for travel), so we can't say prices reliably soften at a specific number of days out. What we can say is that a quarter of the sampled fares came in at $185 or below, meaning sub-$200 fares aren't rare outliers — they showed up often enough in 27 days of data to be a realistic target if you're flexible and willing to check repeatedly rather than book the first fare you see.
We don't have enough visibility into carrier mix or day-of-week patterns in this dataset to say whether a particular airline or departure day drives the cheaper fares — the data doesn't break fares out that way, so we won't speculate. The honest takeaway: this is a route with real volatility, not a stable one. Treat $286 as a rough midpoint rather than an expected price, set $200-ish as your target for a good deal, and be ready to book when you see something near or below the $185 mark, since fares above $320 look like the pricier end of normal rather than something to wait out. The caveat worth repeating: 27 days of cached fares is a reasonable sample but still a snapshot of one recent month, and this route's pricing could shift with seasonality we haven't captured here.
Why we regenerated this article: Median fare ↑ 55% ($185 → $286). We only rewrite when the underlying price index actually moves — stable weeks keep the previous take.
AI-authored from this route's 30-day price index. Article last regenerated Oct 31, 2026. Fares shift continuously — confirm at booking.