Seattle → Toronto flights

Target $203–$287 for Seattle–Toronto; floor hits $176

Key takeaways

• Median fare is $283 across 30 daily snapshots — a reliable baseline for budget planning.
• Bottom-quartile fares fall at or below $203, meaning 25% of observed prices were at this level or cheaper.
• The absolute floor was $176 — achievable but not routine; treat it as an outlier, not a target.
• Spread of 122% between low and high ($176–$391) signals meaningful price volatility — timing your search matters on this route.
• The p75 sits at $287, so fares above ~$290 represent the pricier quarter of observations and are worth waiting out if your schedule allows.

30-day price trend

See full numbers and stats on the SEA → YYZ price history page.

The full picture

Seattle–Toronto is a mid-haul transborder route with a fare range that repays active monitoring. The $176–$391 spread — a 122% gap between floor and ceiling — is wide enough that a patient shopper can do meaningfully better than the $283 median. The interquartile range ($203–$287) is where most realistic deals live: if you see a fare at or below $203, the data suggests you're in the bottom quarter of observed prices and pulling the trigger is defensible. Fares above $290 put you in the pricier quartile, and on a route this volatile, waiting a few days often produces a reset.

On transborder routes of this length, fares generally soften in two windows: roughly 6–10 weeks out, when airlines are still stimulating demand, and again inside 2 weeks, when unsold inventory occasionally gets discounted — though that second window carries schedule risk. The $176 floor likely appeared in one of these windows. There's no carrier attribution in this dataset, so it's not possible to pin the cheapest fares to a specific airline; the dominant option on SEA–YYZ typically involves a connection, which adds another variable to price movement.

One honest caveat: 30 snapshots capture a single rolling month of the cheapest cached fares — they don't reflect seasonal swings (summer and holiday periods on this route can push fares well above the $391 high observed here), nor do they account for how far in advance each snapshot fare was for departure. Use the $203–$287 interquartile band as a credible target range, but factor in your travel dates before deciding a fare is genuinely cheap.

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