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 9,115 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 22 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.

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

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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)	$328
One-way from	$75
Round-trip from	$149

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

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

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

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

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

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Can I get a flight from Chicago to Seattle on Delta for under $400?
There are 22 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 9,115 reviews by Cheapflights users who have traveled with Delta.

Cheapest Delta flights from Chicago to Seattle

Fri 5/317:40 pmORD - SEA

Nonstop4h 42mDelta

Sat 6/86:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 5/1$179

Pick Dates

Wed 5/297:40 pmORD - SEA

Nonstop4h 42mDelta

Wed 6/56:00 pmSEA - ORD

Nonstop4h 06mDelta

Deal found 5/1$189

Pick Dates

Fri 5/317:40 pmORD - SEA

Nonstop4h 42mDelta

Fri 6/76:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 5/1$209

Pick Dates

Direct flights from Chicago to Seattle on Delta

Tue 8/277:30 amORD - SEA

Nonstop4h 30mDelta

Tue 9/106:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 5/1$149

Pick Dates

Wed 6/57:40 pmORD - SEA

Nonstop4h 43mDelta

Tue 6/116:00 pmSEA - ORD

Nonstop3h 58mDelta

Deal found 5/1$179

Pick Dates

Wed 5/297:40 pmORD - SEA

Nonstop4h 42mDelta

Wed 6/56:00 pmSEA - ORD

Nonstop4h 06mDelta

Deal found 5/1$189

Pick Dates

Last minute deals on Cheapflights

Thu 5/97:40 pmORD - SEA

Nonstop4h 42mDelta

Sat 5/256:00 pmSEA - ORD

Nonstop4h 05mDelta

Deal found 5/1$264

Pick Dates

Wed 5/86:00 amORD - SEA

Nonstop4h 27mDelta

Tue 5/146:00 pmSEA - ORD

Nonstop4h 05mDelta

Deal found 4/30$294

Pick Dates

Sat 5/112:29 pmORD - SEA

Nonstop4h 30mDelta

Sun 5/196:00 pmSEA - ORD

Nonstop4h 05mDelta

Deal found 5/1$318

Pick Dates

One-way Delta flights to Seattle from Chicago

Wed 10/27:26 amORD - SEA

Nonstop4h 39mDelta

Deal found 4/30$75

Pick Dates

Thu 6/62:29 pmORD - SEA

Nonstop4h 31mDelta

Deal found 4/30$105

Pick Dates

Wed 5/297:40 pmORD - SEA

Nonstop4h 42mDelta

Deal found 4/30$135

Pick Dates

Average price of Delta flights from Chicago to Seattle

Currently, the most affordable month to book a Delta flight from Chicago to Seattle in December, with an average price of $245. Conversely, traveling with Delta from Chicago to Seattle in July will be the most expensive, with an average cost of $408. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

$247

February

$254

March

$288

April

$294

May

$320

June

$406

July

$408

August

$343

September

$278

October

$257

November

$258

December

$245

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).

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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 May 1, 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 May 1, 2024.

Delta flights from O'Hare Intl to Suvarnabhumi

Delta flights from O'Hare Intl to Seattle

Delta flights from O'Hare Intl to Boston

Delta flights from O'Hare Intl to LaGuardia

Delta flights from O'Hare Intl to New York

Delta flights from O'Hare Intl to Honolulu

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

Seattle car rentals

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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 May 1, 2024.

Flights to New York

Flights to Los Angeles

Flights to Fort Lauderdale

Flights to San Francisco

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 May 1, 2024.

Delta flights from Seattle/Tacoma Intl to Chicago

Delta flights from New York to Paris

Delta flights from New York to Denver

Delta flights from Minneapolis to Las Vegas

Delta flights from John F Kennedy Intl to Santiago de los Caballeros

Delta flights from Boston to Las Vegas

Delta flights from New York to Tampa

Delta flights from New York to Fort Lauderdale

Delta flights from San Francisco to Los Angeles

Delta flights from Los Angeles to San Francisco

Delta flights from Boston to Atlanta

Delta flights from Boston to Orlando

Delta flights from Seattle to Sky Harbor Intl

Delta flights from New York to Atlanta

Delta flights from John F Kennedy Intl to Fort Lauderdale

Delta flights from Los Angeles to Seattle

Delta flights from Boston to Luis Munoz Marin Intl

Delta flights from Los Angeles to Orlando

Delta flights from New York to Luis Munoz Marin Intl

Delta flights from Atlanta to Las Vegas

Delta flights from John F Kennedy Intl to Santo Domingo

Delta flights from Boston to Los Angeles

Delta flights from Los Angeles to New Orleans

Delta flights from Portland to Los Angeles

Delta flights from New York to Orlando

Delta flights from Seattle to Los Angeles

Delta flights from Boston to Tampa

Delta flights from New York to New Orleans

Delta flights from New York to Tel Aviv

Delta flights from Los Angeles to Portland

Delta flights from Los Angeles to Las Vegas

See what others are saying about Delta

Delta

8.0

Very good

10,874 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|Nov 2021

KLM flight sucks! Not very active about telling passengers to put in their mask over the nose. 🙄

1 out of 3625

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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 May 1, 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

Average price of Delta flights from Chicago to Seattle

Plan your Delta flight from Chicago to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Chicago to Seattle is currently $105 while a round-trip flight costs $172. Price data was last updated on April 28, 2024.

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 May 1, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 1, 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 May 1, 2024.

Browse through other Delta flights departing from Chicago. Flight routes are based on user searches made on Cheapflights and were last updated on May 1, 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 May 1, 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 May 1, 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 May 1, 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 May 1, 2024.

See what others are saying about Delta

Overview

Recent reviews

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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 May 1, 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

Average price of Delta flights from Chicago to Seattle

Plan your Delta flight from Chicago to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Chicago to Seattle is currently $105 while a round-trip flight costs $172. Price data was last updated on April 28, 2024.

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 May 1, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 1, 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 May 1, 2024.