Cheap flights from Chicago O'Hare Intl Airport to Seattle from £71
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in September or February, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from O'Hare Intl to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 ספטמבר 2025.
Round-trip from | £130 |
---|---|
One-way from | £71 |
Popular in | December |
Cheapest in | September |
Average price | £162 |
Find flight deals from O'Hare Intl to Seattle
Cheapest flights from O'Hare Intl to SeattleExplore the most affordable flight options available from O'Hare Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 ספטמבר 2025.
Explore the most affordable flight options available from O'Hare Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 ספטמבר 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ו' 17/10
06:00-08:27
Nonstop4h 27m
Seattle/Tacoma Intl
א' 19/10
00:17-06:24
Nonstop4h 07m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
א' 9/11
06:00-08:40
Nonstop4h 40m
Seattle/Tacoma Intl
ד' 12/11
05:20-13:09
1 stop5h 49m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ו' 3/10
13:01-15:35
Nonstop4h 34m
Seattle/Tacoma Intl
ש' 4/10
00:17-06:24
Nonstop4h 07m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ה' 20/11
06:00-08:40
Nonstop4h 40m
Seattle/Tacoma Intl
ג' 25/11
06:00-12:03
Nonstop4h 03m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ד' 24/12
09:15-12:03
Nonstop4h 48m
Seattle/Tacoma Intl
ו' 2/1
10:52-17:01
Nonstop4h 09m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ד' 19/11
08:00-10:44
Nonstop4h 44m
Seattle/Tacoma Intl
א' 23/11
13:44-23:32
1 stop7h 48m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ש' 27/9
16:10-18:49
Nonstop4h 39m
Seattle/Tacoma Intl
ב' 6/10
10:50-17:05
Nonstop4h 15m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ו' 17/10
07:00-14:35
1 stop9h 35m
Seattle/Tacoma Intl
ג' 21/10
00:17-06:24
Nonstop4h 07m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ה' 25/9
07:10-09:45
Nonstop4h 35m
Seattle/Tacoma Intl
ג' 30/9
07:10-13:20
Nonstop4h 10m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
ג' 10/3
14:20-17:00
Nonstop4h 40m
Seattle/Tacoma Intl
ד' 11/3
17:45-23:44
Nonstop3h 59m
Best time to book a flight from O'Hare Intl to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from O'Hare Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to Seattle
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Seattle?
The best time to book flights from Chicago O'Hare Intl Airport to Seattle is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of £622). Flying from Chicago O'Hare Intl Airport to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ORD to SEA?
A simple way to save on the total cost of your ticket is to fly from Chicago O'Hare Intl Airport to Seattle at midday. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the morning.
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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How does Cheapflights help users find flights from O'Hare Intl to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from O'Hare Intl today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from O'Hare Intl to Seattle with no change fees?
Certainly. Search results for flights to Seattle from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from O'Hare Intl to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from O'Hare Intl today and book when prices fit your budget.