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Cheap flights from Chicago O'Hare Intl Airport to Seattle from C$ 130

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in September or February, booked 42 days in advance, depart on a Tuesday or Saturday and return on a Thursday

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 15 April 2025.

Round-trip from

C$ 234

One-way from

C$ 130

Popular in

July

Cheapest in

September

Average price

C$ 351

Good round-trip deal

C$ 277 or less

Good one-way deal

C$ 159 or less
Delta
  • Delta
  • 3/6-7/6
  • Nonstop
  • 8h 39m total
  • Chicago to Seattle
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Southwest
  • Southwest
  • 12/7
  • 1 total stop
  • 10h 30m total
  • Chicago to Seattle
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Highest demand for flights based on searches. 15% potential increase in price (C$ 101 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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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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 15 April 2025.

Tue 3/66:20 p.m.ORD - SEA
Nonstop4h 30mDelta
Sat 7/65:50 p.m.SEA - ORD
Nonstop4h 09mDelta
Deal found 14/4C$ 234
Tue 6/57:00 a.m.ORD - SEA
1 stop9h 00mUnited Airlines
Tue 13/57:00 a.m.SEA - ORD
Nonstop4h 07mUnited Airlines
Deal found 14/4C$ 243
Wed 14/56:00 a.m.ORD - SEA
Nonstop4h 30mAlaska Airlines
Tue 20/59:00 a.m.SEA - ORD
1 stop12h 56mAlaska Airlines
Deal found 15/4C$ 248
Thu 1/55:25 p.m.ORD - SEA
1 stop9h 00mSouthwest
Tue 6/55:00 a.m.SEA - ORD
1 stop7h 00mSouthwest
Deal found 15/4C$ 302
Sat 7/66:00 a.m.ORD - SEA
Nonstop4h 27mHawaiian Airlines
Sat 7/64:19 p.m.SEA - ORD
Nonstop4h 04mHawaiian Airlines
Deal found 15/4C$ 336
Mon 19/59:02 p.m.ORD - SEA
1 stop29h 08mSpirit Airlines
Wed 21/53:20 p.m.SEA - ORD
1 stop12h 05mSpirit Airlines
Deal found 15/4C$ 340
Thu 30/107:26 p.m.ORD - SEA
1 stop23h 35mSun Country Air
Sun 2/116:30 p.m.SEA - ORD
1 stop14h 15mSun Country Air
Deal found 14/4C$ 409
Mon 19/57:35 a.m.ORD - SEA
Nonstop4h 40mAmerican Airlines
Wed 21/56:20 a.m.SEA - ORD
Nonstop4h 13mAmerican Airlines
Deal found 15/4C$ 491

Cheapflights Fare Finder

Customize 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 629,999 searches. Data last updated 15 April 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Seattle that are best for you.

Fly from

O'Hare Intl

Fly to

Seattle

Route

Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 3/6

6:20 p.m.-8:50 p.m.

Nonstop4h 30m

Seattle/Tacoma Intl

Sat 7/6

5:50 p.m.-11:59 p.m.

Nonstop4h 09m

C$ 234

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 6/5

7:00 a.m.-2:00 p.m.

1 stop9h 00m

Seattle/Tacoma Intl

Tue 13/5

7:00 a.m.-1:07 p.m.

Nonstop4h 07m

C$ 243

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 14/5

6:00 a.m.-8:30 a.m.

Nonstop4h 30m

Seattle/Tacoma Intl

Tue 20/5

9:00 a.m.-11:56 p.m.

1 stop12h 56m

C$ 248

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 1/5

5:25 p.m.-12:25 a.m.

1 stop9h 00m

Seattle/Tacoma Intl

Tue 6/5

5:00 a.m.-2:00 p.m.

1 stop7h 00m

C$ 302

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 7/6

6:00 a.m.-8:27 a.m.

Nonstop4h 27m

Seattle/Tacoma Intl

Sat 7/6

4:19 p.m.-10:23 p.m.

Nonstop4h 04m

C$ 336

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 19/5

9:02 p.m.-12:10 a.m.

1 stop29h 08m

Seattle/Tacoma Intl

Wed 21/5

3:20 p.m.-5:25 a.m.

1 stop12h 05m

C$ 340

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 10/10

6:39 p.m.-5:13 p.m.

1 stop24h 34m

Seattle/Tacoma Intl

Sun 12/10

6:34 p.m.-10:39 a.m.

1 stop14h 05m

C$ 458

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 19/5

7:35 a.m.-10:15 a.m.

Nonstop4h 40m

Seattle/Tacoma Intl

Wed 21/5

6:20 a.m.-12:33 p.m.

Nonstop4h 13m

C$ 491

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 12/7

4:00 p.m.-12:30 a.m.

1 stop10h 30m

C$ 130

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 21/5

7:00 a.m.-2:00 p.m.

1 stop9h 00m

C$ 143

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 16 results
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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 round-trip 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.

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?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Seattle. Price data was last updated on 11 April 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 261). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of C$ 353). 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 15 April 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Seattle in the evening. Doing so could potentially save you 60% on the flight price compared to flying at noon, which is usually more expensive.

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 15 April 2025.

The most flights from ORD to SEA are scheduled on a Friday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 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 mm 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 15 April 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Chicago to Seattle by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,871 reviews
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,375 reviews
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,656 reviews
Alaska Airlines
8.0
Very good
9,871 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 44 daily inbound flights from Chicago O'Hare Intl from 0 different airlines.

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

    Flying on Delta is currently your cheapest option to Seattle, with prices starting at C$ 234. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at C$ 243 and C$ 248, respectively. Users have found that Delta is 41% cheaper than the other options available to this destination.

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

    C$ 130 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from C$ 143 and C$ 146, respectively.

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

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Seattle are SWISS (84%), Air France (84%) and Brussels Airlines (79%).

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

    On average you can expect to pay C$ 298 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is C$ 157 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at C$ 318.

  • 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 vacation 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 C$ 261). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of C$ 353). 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
SeaTac
Tukwila
Marysville
Bothell
Leavenworth
Tacoma
Olympia
Lynnwood

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