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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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
26 Feb — 5 Mar1
1 adult

The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in April or September, booked 34 days in advance, depart on a Wednesday or Monday and return on a Wednesday

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 21 February 2025.

Round-trip from

£137

One-way from

£71

Popular in

July

Cheapest in

April

Average price

£189

Good round-trip deal

£240 or less
Alaska Airlines
  • Alaska Airlines
  • 4/4-12/4
  • Nonstop
  • 8h 33m total
  • Chicago to Seattle
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Delta
  • Delta
  • 20/4
  • 1 total stop
  • 6h 10m total
  • Chicago to Seattle
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£38 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
Search Deals

Find flight deals from O'Hare Intl to Seattle

Cheapest flights from O'Hare Intl to Seattle
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 21 February 2025.

Fri 4/407:00ORD - SEA
Nonstop4h 36mAlaska Airlines
Sat 12/418:02SEA - ORD
Nonstop3h 57mAlaska Airlines
Deal found 20/2£137
Wed 7/507:00ORD - SEA
1 stop9h 00mUnited Airlines
Sat 10/517:18SEA - ORD
Nonstop4h 05mUnited Airlines
Deal found 20/2£139
Tue 18/319:15ORD - SEA
1 stop6h 54mDelta
Fri 21/322:00SEA - ORD
1 stop9h 18mDelta
Deal found 20/2£140
Sun 6/406:45ORD - SEA
1 stop7h 11mFrontier
Sun 13/411:36SEA - ORD
1 stop15h 18mFrontier
Deal found 20/2£149
Sat 23/817:10ORD - SEA
Nonstop4h 51mHawaiian Airlines
Tue 26/806:00SEA - ORD
Nonstop4h 04mHawaiian Airlines
Deal found 19/2£150
Sun 6/415:03ORD - SEA
2 stops19h 40mSpirit Airlines
Sun 13/421:06SEA - ORD
2 stops32h 34mSpirit Airlines
Deal found 20/2£233
Wed 26/317:45ORD - SEA
1 stop8h 00mSouthwest
Wed 2/405:15SEA - ORD
2 stops9h 30mSouthwest
Deal found 20/2£256
Sat 1/312:38ORD - SEA
1 stop12h 00mJetBlue
Fri 7/323:48SEA - ORD
1 stop10h 12mJetBlue
Deal found 20/2£275
Wed 30/720:10ORD - SEA
1 stop13h 52mSun Country Air
Thu 31/723:59SEA - ORD
1 stop17h 12mSun Country Air
Deal found 21/2£281
Sun 6/420:25ORD - SEA
Nonstop4h 44mAmerican Airlines
Sat 12/400:59SEA - ORD
1 stop8h 08mAmerican Airlines
Deal found 20/2£295

Find flights from O'Hare Intl to Seattle within your budget

Customise your flight search to find flights from O'Hare Intl to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.

Fly from

O'Hare Intl

Fly to

Seattle

Route

Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 4/4

07:00-09:36

Nonstop4h 36m

Seattle/Tacoma Intl

Sat 12/4

18:02-23:59

Nonstop3h 57m

£137

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 7/5

07:00-14:00

1 stop9h 00m

Seattle/Tacoma Intl

Sat 10/5

17:18-23:23

Nonstop4h 05m

£139

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 18/3

19:15-00:09

1 stop6h 54m

Seattle/Tacoma Intl

Fri 21/3

22:00-09:18

1 stop9h 18m

£140

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 6/4

06:45-11:56

1 stop7h 11m

Seattle/Tacoma Intl

Sun 13/4

11:36-04:54

1 stop15h 18m

£149

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 12/3

07:45-10:28

Nonstop4h 43m

Seattle/Tacoma Intl

Sun 16/3

23:59-05:53

Nonstop3h 54m

£169

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 6/4

12:29-19:09

1 stop8h 40m

Seattle/Tacoma Intl

Sun 13/4

21:06-07:40

2 stops32h 34m

£203

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 26/3

17:45-23:45

1 stop8h 00m

Seattle/Tacoma Intl

Wed 2/4

05:15-16:45

2 stops9h 30m

£256

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 30/7

20:10-08:02

1 stop13h 52m

Seattle/Tacoma Intl

Thu 31/7

23:59-19:11

1 stop17h 12m

£281

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 6/4

20:25-23:09

Nonstop4h 44m

Seattle/Tacoma Intl

Sat 12/4

00:59-11:07

1 stop8h 08m

£295

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 20/4

06:35-10:45

1 stop6h 10m

£71

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 16 results
1
2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from O'Hare Intl to Seattle

Get recent, data-driven insights about flights from O'Hare Intl to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Seattle?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Seattle. Price data was last updated on 14 February 2025.

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 £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?

Find hourly flight availability from O'Hare Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

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 morning. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at midday.

Weekly flight availability from Chicago O'Hare Intl Airport to Seattle

Explore weekly flight availability from O'Hare Intl to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

The most flights from ORD to SEA are scheduled on a Thursday (42 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 21 February 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Chicago to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very Good
4,406 reviews
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very Good
9,696 reviews
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very Good
8,217 reviews
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,069 reviews
Southwest
8.1
Very Good
4,406 reviews
Check prices

Food

7.1

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • 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 32 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.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Seattle round-trip?

    According to our current data, Alaska Airlines (£137), United Airlines (£139), and Delta (£140) offers the cheapest pricing from Chicago O'Hare Intl Airport to Seattle. Alaska Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Seattle one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at £71. United Airlines flights start at £72 while deals on Hawaiian Airlines start at £75 one-way.

  • 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: Air France (81%), Royal Jordanian (81%), Turkish Airlines( 75%).

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

    Looking at all options, your cheapest flight can be booked for £206. While the most popular route (Chicago O'Hare Intl - Seattle/Tacoma Intl) can be booked for £142 on average our data indicates £240 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 £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.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

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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.

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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