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Cheap flights from Chicago O'Hare Intl Airport to Seattle from £109

ORD — SEA
12 Nov — 19 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Seattle

Tue 8/1209:00 -
Nonstop5h 00m
Tue 8/1215:00 -
1 stop26h 00m
Deal found 8/10£209
Mon 2/1117:30 -
Nonstop4h 46m
Sat 14/1107:45 -
Nonstop4h 13m
Deal found 8/10£209
Mon 26/1006:35 -
Nonstop4h 45m
Thu 29/1007:15 -
Nonstop4h 15m
Deal found 9/10£211
Wed 4/1109:30 -
1 stop12h 57m
Thu 12/1107:27 -
Nonstop4h 10m
Deal found 8/10£212
Tue 22/1206:00 -
Nonstop5h 00m
Tue 29/1217:48 -
Nonstop4h 11m
Deal found 9/10£212
Tue 3/1109:30 -
1 stop12h 57m
Tue 10/1110:12 -
1 stop11h 43m
Deal found 8/10£214
Sun 1/1106:20 -
1 stop6h 30m
Wed 11/1110:39 -
Nonstop4h 08m
Deal found 8/10£217
Tue 27/1017:30 -
Nonstop4h 46m
Sat 31/1011:45 -
1 stop6h 45m
Deal found 9/10£218
Wed 16/1207:45 -
1 stop14h 34m
Thu 31/1223:20 -
1 stop10h 32m
Deal found 8/10£219
Tue 8/1210:25 -
1 stop7h 57m
Tue 8/1223:59 -
1 stop8h 11m
Deal found 8/10£221
Thu 10/1217:29 -
Nonstop4h 59m
Tue 15/1209:12 -
1 stop7h 48m
Deal found 9/10£221
Wed 25/1106:00 -
Nonstop4h 41m
Wed 2/1210:22 -
Nonstop4h 09m
Deal found 11/10£222

Find flight deals from O'Hare Intl to Seattle

Round-trip from

£209

One-way from

£109

Popular in

July

Cheapest in

January

Average price

£279

Good one-way deal

£509 or less
Alaska Airlines
  • Alaska Airlines
  • 8/12-8/12
  • 1 total stop
  • 31h 00m total
  • Chicago to Seattle
Search Deals
United Airlines
  • United Airlines
  • 7/11-31/12
  • 1 total stop
  • 10h 43m total
  • Chicago to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Price to beat on a one-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
Search Deals

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.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Tue 24/11

05:30-14:30

1 stop11h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£113

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Sat 12/12

15:19-18:11

Nonstop4h 52m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Fri 11/12

19:55-22:43

Nonstop4h 48m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Tue 10/11

06:40-09:30

Nonstop4h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Tue 15/12

15:19-18:11

Nonstop4h 52m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Thu 5/11

06:35-09:20

Nonstop4h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Sat 7/11

09:30-12:14

Nonstop4h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Thu 12/11

17:55-20:38

Nonstop4h 43m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120
Fastest return journey

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Sat 7/11

12:00-14:37

Nonstop4h 37m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSeattle

ORD Chicago O'Hare Intl - SEA Seattle/Tacoma Intl

ORDSEA

Chicago O'Hare Intl

Tue 10/11

13:30-20:56

1 stop9h 26m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£124

Flights are sorted by cheapest return flights first.

Deals found on 8/10

Showing 1-10 of 23 resultsSorted by cheapest first
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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.
Estimated return price

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 34 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 £161). Flying from Chicago O'Hare Intl Airport to Seattle in July is currently the most expensive (average of £308). 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 in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the afternoon.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to Seattle?

Airfare is below average for this route at the moment.

Chicago O'Hare Intl Airport to Seattle flights typically cost between £215 and £355 in December.
The cheapest return price found within the last 5 days was £209 on Alaska Airlines (8 Dec–8 Dec).

Related info for your journey

  • What airport do you fly into for flights to Seattle from Chicago O'Hare Intl?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Chicago O'Hare Intl; the airport handles an average of 33 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Seattle airport from Chicago O'Hare Intl. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Seattle?

    For as low as £217, United Airlines can have you in Seattle from Chicago O'Hare Intl Airport in 4h 47m. The distance from Chicago O'Hare Intl Airport to Seattle is about 1715 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Seattle?

    Before booking your flight to Seattle from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: Delta (71%), Royal Jordanian (68%), Korean Air( 65%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Seattle?

    Looking at all options, your cheapest flight can be booked for £509. While the most popular route (Chicago O'Hare Intl - Seattle/Tacoma Intl) can be booked for £225 on average, our data indicates £509 when flying from Chicago O'Hare Intl Airport to Seattle.

  • Can I find deals for flights from O'Hare Intl to Seattle that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Seattle.

  • Can I find deals for business class flights from O'Hare Intl to Seattle?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 £161). Flying from Chicago O'Hare Intl Airport to Seattle in July is currently the most expensive (average of £308). 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.

See more FAQs

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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!

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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.

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