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

ORD — SEA
24 Nov — 1 Dec1
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

Fri 13/1119:57 -
1 stop20h 48m
Sat 14/1117:51 -
Nonstop4h 08m
Deal found 23/10£207
Thu 24/1206:00 -
Nonstop4h 54m
Tue 29/1207:15 -
Nonstop4h 17m
Deal found 23/10£210
Fri 25/1209:01 -
Nonstop4h 59m
Mon 11/108:11 -
Nonstop4h 10m
Deal found 23/10£214
Fri 13/1109:25 -
Nonstop4h 54m
Tue 17/1122:56 -
Nonstop4h 10m
Deal found 23/10£217
Tue 22/1218:57 -
Nonstop4h 59m
Tue 5/111:45 -
Nonstop4h 14m
Deal found 21/10£219
Thu 24/1214:17 -
1 stop9h 27m
Thu 14/111:45 -
Nonstop4h 14m
Deal found 23/10£221
Mon 9/1106:30 -
1 stop10h 42m
Sun 15/1121:13 -
1 stop30h 00m
Deal found 21/10£224
Fri 25/1218:57 -
Nonstop4h 59m
Tue 12/112:00 -
1 stop8h 08m
Deal found 23/10£225
Tue 8/1209:00 -
Nonstop5h 00m
Tue 15/1207:25 -
1 stop15h 29m
Deal found 24/10£226
Tue 22/1206:00 -
Nonstop5h 00m
Mon 4/113:00 -
1 stop8h 59m
Deal found 21/10£226
Thu 12/1114:15 -
1 stop10h 42m
Mon 16/1121:59 -
1 stop13h 10m
Deal found 23/10£229

Find flight deals from O'Hare Intl to Seattle

Round-trip from

£207

One-way from

£109

Popular in

July

Cheapest in

January

Average price

£279

Good round-trip deal

£379 or less

Good one-way deal

£503 or less
Alaska Airlines
  • Alaska Airlines
  • 13/11-14/11
  • 1 total stop
  • 24h 56m total
  • Chicago to Seattle
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Delta
  • Delta
  • 9/11-31/12
  • Nonstop
  • 4h 38m total
  • Chicago to Seattle
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£32 potential increase over avg. return price).
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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 round-trip flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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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

Wed 18/11

07:00-09:50

Nonstop4h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Thu 7/1

18:57-21:42

Nonstop4h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Tue 5/1

08:00-10:47

Nonstop4h 47m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Mon 7/12

06:00-08:57

Nonstop4h 57m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Sat 9/1

18:57-21:42

Nonstop4h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Thu 26/11

13:30-20:56

1 stop9h 26m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£114

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Fri 27/11

06:40-09:30

Nonstop4h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£123

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Tue 17/11

09:25-12:19

Nonstop4h 54m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£123

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Fri 4/12

06:00-08:57

Nonstop4h 57m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£123

ChicagoSeattle

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

ORDSEA

Chicago O'Hare Intl

Sat 28/11

06:40-09:30

Nonstop4h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£141

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 22 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 £159). Flying from Chicago O'Hare Intl Airport to Seattle in July is currently the most expensive (average of £306). 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 £226 and £355 in November.
The cheapest return price found within the last 5 days was £207 on Alaska Airlines (13 Nov–14 Nov).

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 27 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 £246, Alaska Airlines can have you in Seattle from Chicago O'Hare Intl Airport in 4h 35m. The distance from Chicago O'Hare Intl Airport to Seattle is about 1715 mi. Most flights are nonstop.

  • 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: KLM (100%), Korean Air (78%), Royal Jordanian( 74%).

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

    Looking at all options, your cheapest flight can be booked for £379. While the most popular route (Chicago O'Hare Intl - Seattle/Tacoma Intl) can be booked for £263 on average, our data indicates £441 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 £159). Flying from Chicago O'Hare Intl Airport to Seattle in July is currently the most expensive (average of £306). 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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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.

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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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