How do most travelers feel about Delta?

When planning your CHI-SEA trip, keep in mind that Delta is typically rated 8.0/10. This rating comes from 9,198 reviews by Cheapflights users who have traveled with Delta.

Can I get a flight from Chicago to Seattle on Delta for under $400?

There are 12 flights available on Delta from Chicago to Seattle for under $400. These prices can change based on many factors including date and time. To find CHI-SEA flight prices for your dates, click here.

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

Booking with Delta 76 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 with Delta?

Currently, the most affordable month to book a Delta flight from Chicago to Seattle in January, with an average price of $247. Conversely, traveling with Delta from Chicago to Seattle in July will be the most expensive, with an average cost of $406. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Fly Delta from Chicago to SEA as low as $75

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Cheapflights users flying from Chicago to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Chicago O'Hare Intl. Select your dates above for pricing.

Delta flights from Chicago to Seattle in 2024

Popular in	July
Cheapest in	January
Average price (all airlines)	$372
One-way from	$75
Round-trip from	$149

Highest demand for flights from Chicago to Seattle/Tacoma Intl; 26% potential price increase.

Search Deals

Best time to find cheap flights from Chicago to Seattle/Tacoma Intl; 4% potential price drop.

Search Deals

Average price for all Chicago to Seattle/Tacoma Intl flights (one-way and round-trip).

Search Deals

Cheapest one-way Delta flight from Chicago to Seattle/Tacoma Intl

Search Deals

Cheapest round-trip Delta flight from Chicago to Seattle/Tacoma Intl

Search Deals

Can I get a flight from Chicago to Seattle on Delta for under $400?
There are 12 flights available on Delta from Chicago to Seattle for under $400. These prices can change based on many factors including date and time. To find CHI-SEA flight prices for your dates, click here.
How do most travelers feel about Delta?
When planning your CHI-SEA trip, keep in mind that Delta is typically rated 8.0/10. This rating comes from 9,198 reviews by Cheapflights users who have traveled with Delta.

Cheapest Delta flights from Chicago to Seattle

Wed 6/196:50 pmORD - SEA

Nonstop4h 44mDelta

Tue 7/96:00 pmSEA - ORD

Nonstop3h 56mDelta

Deal found 6/1$243

Pick Dates

Wed 6/266:50 pmORD - SEA

Nonstop4h 44mDelta

Mon 7/17:10 amSEA - ORD

Nonstop4h 03mDelta

Deal found 6/1$244

Pick Dates

Thu 6/206:55 amORD - SEA

Nonstop4h 30mDelta

Sat 6/296:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 6/1$273

Pick Dates

Direct flights from Chicago to Seattle on Delta

Sat 8/247:00 amORD - SEA

Nonstop4h 25mDelta

Sat 8/316:00 pmSEA - ORD

Nonstop3h 56mDelta

Deal found 6/1$149

Pick Dates

Thu 9/57:00 amORD - SEA

Nonstop4h 25mDelta

Mon 9/166:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 6/1$179

Pick Dates

Wed 8/147:00 amORD - SEA

Nonstop4h 25mDelta

Tue 8/276:00 pmSEA - ORD

Nonstop3h 56mDelta

Deal found 5/31$203

Pick Dates

Last minute deals on Cheapflights

Sat 6/86:50 pmORD - SEA

Nonstop4h 44mDelta

Sat 6/156:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 6/1$328

Pick Dates

Sun 6/96:55 amORD - SEA

Nonstop4h 30mDelta

Wed 6/1212:40 amSEA - ORD

1 stop5h 47mDelta

Deal found 6/1$409

Pick Dates

Fri 6/76:15 pmORD - SEA

Nonstop4h 35mDelta

Sat 6/156:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 6/1$428

Pick Dates

One-way Delta flights to Seattle from Chicago

Wed 10/162:13 pmORD - SEA

Nonstop4h 41mDelta

Deal found 6/1$75

Pick Dates

Tue 7/166:45 pmORD - SEA

Nonstop4h 40mDelta

Deal found 6/1$105

Pick Dates

Sat 7/66:55 amORD - SEA

Nonstop4h 29mDelta

Deal found 6/1$139

Pick Dates

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 round-trip price

Temperature and rainfall in Seattle by month

SEA Temperature	41 - 66.2 °F

SEA

Temperature

41 - 66.2 °F

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Browse thousands of different options on Cheapflights for your next trip

Fly from Chicago to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Alaska Airlines flights from Chicago to Seattle/Tacoma Intl

United Airlines flights from Chicago to Seattle/Tacoma Intl

Other Delta flights from Chicago
Browse through other Delta flights departing from Chicago. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Delta flights from Chicago to Suvarnabhumi

Delta flights from Chicago to Seattle

Delta flights from Chicago to Atlanta

Delta flights from Chicago to Boston

Delta flights from Chicago to New York

Delta flights from Chicago to Honolulu

Delta flights from Chicago to Atlanta

Delta flights from Chicago to Honolulu

Delta flights from Chicago to Suvarnabhumi

Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Seattle car rentals

Seattle/Tacoma Intl Airport car rentals

Kenmore Air Harbor Airport car rentals

Spokane car rentals

Bellingham car rentals

Pasco car rentals

Yakima car rentals

Walla Walla car rentals

Wenatchee car rentals

Pullman car rentals

Capitol Hill car rentals

West Seattle car rentals

Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Flights to New York

Flights to Los Angeles

Flights to San Francisco

Flights to Fort Lauderdale

Popular flights with Delta
Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Delta flights from Seattle/Tacoma Intl to Chicago

Delta flights from Chicago to Atlanta

Delta flights from Chicago to Seattle

Delta flights from Chicago to Atlanta

Delta flights from Chicago to Honolulu

Delta flights from Chicago to Boston

Delta flights from Chicago to New York

Delta flights from Chicago to Boston

Delta flights from Chicago to New York

Delta flights from Chicago to Atlanta

Delta flights from Chicago to New York

Delta flights from Chicago to Seattle

Delta flights from Chicago to Atlanta

Delta flights from Chicago to Boston

See what others are saying about Delta

Delta

8.0

Very good

10,410 reviews

Check prices

Overview

Recent reviews

3.9

Poor|Oct 2021

There were complications with my flights boarding in spokane and my secondary flight was changed without my consent to one that boarded at the same time as my first flight let me out on the opposite side of the massivr layover airport. It was only because an employee saw my struggle and confusion and hooked me up with a ride that I even made the flight dispite delta's best efforts. My TV's headphone jack on my first flight was also busted which sucked to find out after buying headphones on the flight. About halfway through the flight one of the attendants moved me to a seat with a working TV. Long story short Delta as an airline was terrible but their employees did their best to help me with what limited options they had to work with.

6.0

Okay|Apr 2022

No entertainment, five hour flight and choice of pretzels or a cookie. Still a place to put your cigarette in the restroom on board. How old is the plane?

5.9

Fair|Oct 2021

The staff was the highlight. Only thing that could have been better was the temperature on the flight from Hawaii to Seattle. The plane was too cold to get comfortable

10.0

Wonderful|Aug 2021

No complaints!!

2.0

Poor|Oct 2021

I never took this flight and was never able to cancel it in Kayak’s system! I will never book through Kayak again. The flight was probably fine. Next time I will only book with the airline directly. I would caution anyone else to do the same.

1 out of 3470

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

View all available airlines

Cheapflights users flying from Chicago to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Chicago O'Hare Intl. Select your dates above for pricing.

Delta flights from Chicago to Seattle in 2024

Find detailed information about Delta flights from Chicago to Seattle. Explore the options provided by Delta to plan your journey from Chicago to Seattle. Data last updated June 2, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Chicago to Seattle on Delta for under $400?

How do most travelers feel about Delta?

Cheapest Delta flights from Chicago to Seattle

Direct flights from Chicago to Seattle on Delta

Last minute deals on Cheapflights

One-way Delta flights to Seattle from Chicago

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.

Temperature and rainfall in Seattle by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Chicago to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Other Delta flights from Chicago
Browse through other Delta flights departing from Chicago. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Browse through other Delta flights departing from Chicago. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Chicago and Seattle
Choose from other airlines serving Chicago and Seattle.

Choose from other airlines serving Chicago and Seattle.

Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Popular flights with Delta
Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 2, 2024.

See what others are saying about Delta

Overview

Recent reviews

100% Free

Book with Flexibility

Travel Smart

Flights

Delta flights from Chicago to Seattle (CHI - SEA)

Cheapflights users flying from Chicago to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Chicago O'Hare Intl. Select your dates above for pricing.

Delta flights from Chicago to Seattle in 2024

Find detailed information about Delta flights from Chicago to Seattle. Explore the options provided by Delta to plan your journey from Chicago to Seattle. Data last updated June 2, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Chicago to Seattle on Delta for under $400?

How do most travelers feel about Delta?

Cheapest Delta flights from Chicago to Seattle

Direct flights from Chicago to Seattle on Delta

Last minute deals on Cheapflights

One-way Delta flights to Seattle from Chicago

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.

Temperature and rainfall in Seattle by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Chicago to Seattle on another airlineConsider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.

See what others are saying about Delta

Overview

100% Free

Book with Flexibility

Travel Smart

Fly from Chicago to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on June 2, 2024.