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Cheap flights from Chicago to Seattle from £58

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SEA
20 Nov — 27 Nov1
1 adult

Find flights from Chicago to Seattle within your budget

Customise your flight search to find flights from Chicago 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 943,810 searches. Data last updated 15 November 2024.

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Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 7/12

06:05-08:55

Nonstop4h 50m

Seattle/Tacoma Intl

Sat 14/12

06:15-12:17

Nonstop4h 02m

£133

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 12/1

07:45-10:36

Nonstop4h 51m

Seattle/Tacoma Intl

Tue 21/1

18:00-23:59

Nonstop3h 59m

£140

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 9/12

06:32-09:20

Nonstop4h 48m

Seattle/Tacoma Intl

Thu 12/12

13:40-19:30

1 stop27h 50m

£143

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sun 6/4

07:18-09:53

Nonstop4h 35m

Seattle/Tacoma Intl

Sat 12/4

12:59-22:37

1 stop7h 38m

£161

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 7/12

06:35-00:10

1 stop19h 35m

Seattle/Tacoma Intl

Sat 14/12

16:00-05:30

1 stop11h 30m

£203

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 24/12

10:00-17:29

1 stop9h 29m

Seattle/Tacoma Intl

Sun 5/1

18:27-18:05

1 stop21h 38m

£217

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 28/11

07:00-14:21

1 stop9h 21m

Seattle/Tacoma Intl

Wed 4/12

00:15-06:16

Nonstop4h 01m

£218

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 29/11

06:00-11:20

1 stop7h 20m

Seattle/Tacoma Intl

Thu 5/12

13:40-19:30

1 stop27h 50m

£264

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 19/2

06:15-14:25

2 stops10h 10m

Seattle/Tacoma Intl

Thu 27/2

07:30-22:35

2 stops13h 05m

£269

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 17/2

12:45-22:07

1 stop11h 22m

Seattle/Tacoma Intl

Tue 18/2

23:17-12:00

1 stop10h 43m

£270

Flights are sorted by cheapest first

Deals found on 15/11

Showing 1-10 of 16 results
1
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Cheap flight deals from Chicago to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 November 2024.

Round-trip from

£133

One-way from

£58

Popular in

July

Cheapest in

January
Delta
  • Delta
  • 7/12-14/12
  • Nonstop
  • 8h 52m total
  • Chicago to Seattle
Search Deals
Frontier
  • Frontier
  • 25/12
  • 1 total stop
  • 9h 10m total
  • Chicago to Seattle
Search Deals
High demand for flights, 30% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals

Find flight deals from Chicago to Seattle

Cheapest flights from Chicago to Seattle
Explore the most affordable flight options available from Chicago to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 November 2024.

Sat 7/1207:00ORD - SEA
Nonstop4h 44mAlaska Airlines
Sat 14/1217:51SEA - ORD
Nonstop3h 56mAlaska Airlines
Deal found 15/11£133
Sat 7/1206:05ORD - SEA
Nonstop4h 50mDelta
Sat 14/1206:15SEA - ORD
Nonstop4h 02mDelta
Deal found 14/11£134
Mon 9/1206:32ORD - SEA
Nonstop4h 48mMultiple Airlines
Thu 12/1213:40SEA - ORD
1 stop27h 50mMultiple Airlines
Deal found 15/11£143
Wed 27/1119:55ORD - SEA
Nonstop4h 51mUnited Airlines
Wed 4/1223:55SEA - ORD
Nonstop3h 57mUnited Airlines
Deal found 13/11£157
Sat 7/1206:35ORD - SEA
1 stop19h 35mSpirit Airlines
Sat 14/1216:00SEA - ORD
1 stop11h 30mSpirit Airlines
Deal found 15/11£203
Tue 24/1210:00ORD - SEA
1 stop9h 29mSun Country Air
Sun 5/118:27SEA - ORD
1 stop21h 38mSun Country Air
Deal found 14/11£217
Thu 28/1107:00ORD - SEA
1 stop9h 21mAmerican Airlines
Wed 4/1200:15SEA - ORD
Nonstop4h 01mAmerican Airlines
Deal found 13/11£218
Fri 29/1106:00ORD - SEA
1 stop7h 20mFrontier
Thu 5/1213:40SEA - ORD
1 stop27h 50mFrontier
Deal found 13/11£264
Thu 12/1207:00ORD - SEA
2 stops12h 05mSouthwest
Tue 17/1209:00SEA - ORD
2 stops11h 35mSouthwest
Deal found 13/11£281

Best time to book a flight from Chicago to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Chicago 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 Chicago to Seattle

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

How far ahead should I book a flight from Chicago to Seattle?

Use this chart to determine the optimal time to book a return flight from Chicago to Seattle. Price data was last updated on 8 November 2024.

Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Seattle?

Currently, January is the cheapest month in which you can book a flight from Chicago to Seattle (average of £616). Flying from Chicago to Seattle in July is currently the most expensive (average of £841). 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 CHI to SEA?

Find hourly flight availability from Chicago 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 November 2024.

When flying from Chicago to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 2% versus a flight at midday.

Weekly flight availability from Chicago to Seattle

Explore weekly flight availability from Chicago 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 November 2024.

The most flights from CHI to SEA are scheduled on a Thursday (48 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 15 November 2024.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and United Airlines from Chicago to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very Good
5,044 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very Good
9,446 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very Good
8,786 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,434 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,193 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Chicago 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?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Chicago to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Chicago on a regular basis. Booking flights from Chicago to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 28 inbound flights from Chicago per day.

  • What are the cheapest airlines flying from Chicago to Seattle round-trip?

    According to our current data, Delta (£133), Alaska Airlines (£140), and United Airlines (£161) offers the cheapest pricing from Chicago to Seattle. Delta is currently priced 37% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago to Seattle one-way?

    £58 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from £67 and £75, respectively.

  • What are the most reliable airlines from Chicago to Seattle?

    The top 3 most reliable airlines when flying from Chicago to Seattle are Air France (100%), Avianca (100%) and Brussels Airlines (97%).

  • What are the cheapest flights from Chicago to Seattle?

    While on average a flight from Chicago to Seattle is generally £169, our data shows the cheapest flight currently is £106. When looking at the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl), you can expect to pay £162 for that flight.

  • Can I find deals for flights from Chicago to Seattle that include hotel bookings?

    Yes. In addition to deals on Chicago to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Seattle?

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

  • Can I find deals for business class flights from Chicago to Seattle?

    Yes. Cheapflights offers flight deals from Chicago 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 to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Seattle (average of £616). Flying from Chicago to Seattle in July is currently the most expensive (average of £841). 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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Alternative routes for Chicago to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Seattle flights

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Yes, we can. To see specific flights from Chicago to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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