Chicago To Seattle Flights — from €152
Compare cheap flights from Chicago 🇺🇸 to Seattle 🇺🇸. Real prices, daily refreshed from Aviasales.
Live price data temporarily unavailable for this route. Search current fares directly →
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📱 Get an eSIM (code FALLY20)
✈️ Flight Delayed? Claim up to €600
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Updated 2026-04-14 · Real-time travel data · Affiliate disclosure: this page contains affiliate links — we earn a commission if you book.
The Chicago to Seattle flight takes approximately 1–5 hours. Total journey time including check-in and airport transfers adds 2–3 hours. Filter search results by total journey time, not just fare, to find the most efficient routing.
January, february, and november typically offer the lowest fares, often 15–25% below peak-season prices. Shoulder season — April through May and September through October — balances value with excellent travel conditions. Avoid school holiday windows, when demand drives fares sharply higher.
Book 3–5 weeks ahead for the best price and seat availability. Fares typically rise sharply inside 14 days of departure. Searching on Tuesday or Wednesday mornings returns 10–15% lower fares than weekend searches on average.
Yes, nonstop options operate on this route — frequency varies by season.
Set a fare alert for the route and search ±3 days around your target travel dates. Compare fares from nearby airports — a short drive can unlock significantly lower base fares. Self-connecting through a separate booking can beat bundled itinerary prices by 20–30%, though this carries risk if your first segment is delayed.