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Cheap flights from Chicago O'Hare Intl Airport to Seattle from C$ 135

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
22 Jan — 29 Jan1
1 adult

The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in February or April, booked 38 days in advance, depart on a Wednesday or Monday 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 17 January 2025.

Round-trip from

C$ 256

One-way from

C$ 135

Popular in

July

Cheapest in

February

Average price

C$ 387
Delta
  • Delta
  • 26/2-3/3
  • Nonstop
  • 8h 59m total
  • Chicago to Seattle
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United Airlines
  • United Airlines
  • 20/2
  • Nonstop
  • 4h 44m total
  • Chicago to Seattle
Search Deals
High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
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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 17 January 2025.

Wed 26/22:10 p.m.ORD - SEA
Nonstop4h 46mDelta
Mon 3/35:55 p.m.SEA - ORD
Nonstop4h 01mDelta
Deal found 16/1C$ 256
Sat 15/25:56 p.m.ORD - SEA
Nonstop4h 41mAlaska Airlines
Sat 22/29:59 p.m.SEA - ORD
1 stop13h 05mAlaska Airlines
Deal found 16/1C$ 264
Mon 24/27:59 p.m.ORD - SEA
Nonstop4h 43mUnited Airlines
Sat 1/310:52 a.m.SEA - ORD
Nonstop4h 06mUnited Airlines
Deal found 16/1C$ 267
Thu 1/58:25 p.m.ORD - SEA
Nonstop4h 40mAmerican Airlines
Mon 5/53:04 p.m.SEA - ORD
Nonstop4h 11mAmerican Airlines
Deal found 15/1C$ 332
Thu 1/56:45 a.m.ORD - SEA
1 stop18h 25mMultiple Airlines
Mon 5/511:59 p.m.SEA - ORD
Nonstop4h 06mMultiple Airlines
Deal found 15/1C$ 390
Sat 15/27:05 p.m.ORD - SEA
1 stop6h 40mSouthwest
Sat 22/25:15 a.m.SEA - ORD
1 stop11h 15mSouthwest
Deal found 16/1C$ 398
Mon 14/78:10 p.m.ORD - SEA
1 stop18h 09mSun Country Air
Wed 23/76:40 p.m.SEA - ORD
1 stop22h 31mSun Country Air
Deal found 16/1C$ 503

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

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 26/2

7:00 a.m.-9:58 a.m.

Nonstop4h 58m

Seattle/Tacoma Intl

Mon 3/3

5:55 p.m.-11:56 p.m.

Nonstop4h 01m

C$ 256

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 15/2

5:56 p.m.-8:37 p.m.

Nonstop4h 41m

Seattle/Tacoma Intl

Sat 22/2

9:59 p.m.-1:04 p.m.

1 stop13h 05m

C$ 264

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 24/2

7:59 p.m.-10:42 p.m.

Nonstop4h 43m

Seattle/Tacoma Intl

Sat 1/3

10:52 a.m.-4:58 p.m.

Nonstop4h 06m

C$ 267

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 1/5

8:25 p.m.-11:05 p.m.

Nonstop4h 40m

Seattle/Tacoma Intl

Mon 5/5

3:04 p.m.-9:15 p.m.

Nonstop4h 11m

C$ 332

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 1/5

6:45 a.m.-11:10 p.m.

1 stop18h 25m

Seattle/Tacoma Intl

Mon 5/5

11:59 p.m.-6:05 a.m.

Nonstop4h 06m

C$ 390

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 15/2

7:05 p.m.-11:45 p.m.

1 stop6h 40m

Seattle/Tacoma Intl

Sat 22/2

5:15 a.m.-6:30 p.m.

1 stop11h 15m

C$ 398

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 14/7

8:10 p.m.-12:19 p.m.

1 stop18h 09m

Seattle/Tacoma Intl

Sun 27/7

11:59 p.m.-7:11 p.m.

1 stop17h 12m

C$ 503

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 20/2

9:00 a.m.-11:44 a.m.

Nonstop4h 44m

C$ 135

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 3/2

7:15 a.m.-10:11 a.m.

Nonstop4h 56m

C$ 165

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 3/2

1:39 p.m.-12:19 a.m.

1 stop12h 40m

C$ 177

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Showing 1-10 of 13 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.

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 round-trip flight from O'Hare Intl to Seattle. Price data was last updated on 10 January 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 38 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$ 257). Flying from Chicago O'Hare Intl Airport to Seattle in April is currently the most expensive (average of C$ 421). 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 17 January 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Seattle at noon. Doing so could potentially save you 47% on the flight price compared to flying in the morning, 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 17 January 2025.

The most flights from ORD to SEA are scheduled on a Wednesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 17 January 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and United Airlines 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.
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,964 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Entertainment

7.7

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 17 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$ 256. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at C$ 264 and C$ 267, respectively. Users have found that Delta is 37% 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$ 135 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Spirit Airlines, with prices starting from C$ 165 and C$ 177, 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 United Airlines (87%), KLM (85%) and Korean Air (84%).

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

    On average you can expect to pay C$ 385 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is C$ 164 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at C$ 254.

  • 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$ 257). Flying from Chicago O'Hare Intl Airport to Seattle in April is currently the most expensive (average of C$ 421). 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
Marysville
Tukwila
Tacoma
Bothell
Olympia
Lynnwood
Leavenworth

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