Chicago to Seattle

1 ways to travelfastest 6h 08mfly from €109
Photo: Robert Ritchie / Unsplash

How the cheapest fare moved

Aug 6: €129 €129 Jul 30 Aug 6 low €109 · high €146

Departure-day prices · May 2025 Chicago → Seattle

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Return-day prices · May 2025 Seattle → Chicago

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Best time to visit Seattle — climate

Jan: ~7°C daytime, 9 rainy days JanFeb: ~8°C daytime, 15 rainy days FebMar: ~12°C daytime, 20 rainy days 12° MarApr: ~15°C daytime, 11 rainy days 15° AprMay: ~18°C daytime, 10 rainy days 18° MayJun: ~22°C daytime, 3 rainy days 22° JunJul: ~26°C daytime, 1 rainy days 26° JulAug: ~25°C daytime, 6 rainy days 25° AugSep: ~22°C daytime, 5 rainy days 22° SepOct: ~15°C daytime, 16 rainy days 15° OctNov: ~12°C daytime, 16 rainy days 12° NovDec: ~10°C daytime, 19 rainy days 10° Dec

Best value: Aug — fares from €109 and ~25°C daytime.

Flights from Chicago to Seattle start around €109 (typically 1 stop). Range seen recently: €109–123, based on 5 fares found by travellers.

Fly (from €109)
6h 08mduration
€109–123recent fares
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Cheapest cached fares Chicago → Seattle; typically 1 stop (e.g. F9). · Based on 5 fares found by travellers in the last 48h

Cheapest round trips to Seattle

Fares found by travellers in the last 48 hours — refreshed daily.

Sep 10 – Sep 14 Frontier Airlines · 1 stop · 7h 02m €235 Book
Sep 24 – Sep 29 Frontier Airlines · 1 stop · 7h 12m €245 Book
Sep 14 – Sep 21 Frontier Airlines · 1 stop · 5h 46m €245 Book
Sep 12 – Sep 18 Alaska Airlines · Direct · 4h 38m €255 Book
Aug 30 – Sep 3 Frontier Airlines · 1 stop · 7h 06m €259 Book
Aug 26 – Aug 29 Frontier Airlines · 1 stop · 6h 08m €262 Book
Aug 18 – Sep 3 Frontier Airlines · 1 stop · 6h 08m €268 Book
Sep 13 – Sep 18 Frontier Airlines · 1 stop · 7h 02m €269 Book

Weather in Seattle

Thu ☁️ 27° 15° 💧0%
Fri ☁️ 28° 14° 💧0%
Sat ☁️ 31° 15° 💧0%
Sun ☁️ 28° 13° 💧0%
Mon ☀️ 29° 13° 💧0%
Tue ☁️ 30° 15° 💧0%
Wed ☁️ 28° 14° 💧4%

In May, Seattle typically sees ~17°C daytime highs and 13 rainy days.

Where to stay in Seattle

3★+ hotels from €154/night (39 hotels sampled, ~3 weeks out).

Hotel Max hotel · Seattle
from €154/night★ 3
Staypineapple, University Inn, University District Seattle hotel · Seattle
from €179/night★ 3
Skybridge Seattle Airport Hotel hotel · Seattle
from €181/night★ 4

Good to know

Time difference-2h
Time in the air4h 38m

Things to do in Seattle

Top-rated tours and tickets from €35 — book ahead for the popular ones.

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Seattle

Seattle, Washington sits at one of the most beautiful spots in the United States. Occupying a narrow isthmus between the Puget Sound and Lake Washington, it is the biggest city in the Pacific Northwest, with 780,000 people in Seattle and over four million people in the metro area. Seen from above, carpets of evergreen trees, pristine blue waters, and snowy white mountains surround the downtown's metallic skyscrapers, earning the city its nickname The Emerald City. On the ground, you will find a vibrant and cosmopolitan city.

Read the full Seattle guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

Popular from Chicago

Cheapest destinations travellers searched recently — refreshed daily.

Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-08-06. Some links earn Stayonomy a commission at no cost to you.