Title: Cheap Delta flights from Chicago to Seattle (ORD→SEA) - Expedia.co.uk ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Delta flights from Chicago to Seattle (ORD→SEA) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Delta flights from Chicago to Seattle (ORD→SEA) Prices were available within the past 7 days and start at for one-way flights and £214 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, 15 Oct - Wed, 22 Oct ORD Chicago SEA Seattle £214 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ORD,to:SEA,departure:15/10/2025TANYT&leg2=from:SEA,to:ORD,departure:22/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:213.30&airProductToken=AQo3CjUIxJgBEgQxNDE4GK4cIJIBKK24-gIwwLr6AjhFQABYAWoJTUFJTkJBU0lDcghUQVVOQTBCUQo3CjUIxJgBEgQyMjk5GJIBIK4cKMeG-wIwsoj7AjhFQABYAWoJTUFJTkJBU0lDcghWQVZTSDNCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ## Frequently asked questions ### How much is a Delta Air Lines flight from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)? > Grab cheap round-trip Delta Air Lines flights from £214 from ORD to SEA by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains for a one-way trip.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from ORD to SEA with Delta Air Lines? > Delta Air Lines flights to Seattle are generally more affordable in the off-peak months of January and February. Whether you're after a one-way or a return ticket, you could land a better deal then. ### Does Delta Air Lines fly nonstop from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)? > You can easily fly from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) on one of Delta Air Lines's 13 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the Delta Air Lines flight that'll take you to SEA at your preferred time. ### How long does it take to fly from ORD to SEA with Delta Air Lines? > Depart O'Hare Intl. Airport (ORD) for Seattle - Tacoma Intl. Airport (SEA) on a direct Delta Air Lines flight, and you'll be in the air for around 4h 52m. ### Which day of the week has the most Delta Air Lines flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)? > If flexibility is what you're after, Thursday offers the most choice for Delta Air Lines flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). You can pick from 2 different departures. ### What airports does Delta Air Lines fly into in Seattle? > Seattle - Tacoma Intl. Airport (SEA) is the main Seattle gateway for Delta Air Lines flights from O'Hare Intl. Airport (ORD). ### What type of plane does Delta Air Lines fly from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)? > Delta Air Lines generally uses Airbus A220-300 planes for journeys from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). Remember that aircraft type can vary depending on operational requirements, so the plane you catch might be different on your travel date. ### Can I change or cancel my Delta Air Lines flight from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)? > In most cases, you can modify or cancel your flight, although additional fees may apply if your booking was made more than 24 hours ago. Need flexible options? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge extra if you need to adjust your plans. To make changes, go to "[Trips](https://www.expedia.co.uk/trips)," select your flight and click on "Manage Booking" for further information. ## Travel information | Origin airport | O'Hare Intl. | | --- | --- | | Destination airport | Seattle - Tacoma Intl. | | Airlines serving | Alaska Airlines, JetBlue Airways | | Popular airline | Alaska Airlines | | Distance | 2745 km | | Average flight time | 2 hours 34 mins | ## Explore a world of travel with Expedia - Accommodation - Flights - Packages - Cars - Holiday Homes - Other - [3 Star Hotels in Kent](https://www.expedia.co.uk/3Star-Kent-Hotels.s30-0-d8223.Travel-Guide-Filter-Hotels) - [5 Star Hotels in Bryn Mawr-Skyway](https://www.expedia.co.uk/5Star-Bryn-Mawr-Skyway-Seattle-Hotels.s50-n158768-0.Travel-Guide-Filter-Hotels) - [5 Star Hotels in Kent](https://www.expedia.co.uk/5Star-Kent-Hotels.s50-0-d8223.Travel-Guide-Filter-Hotels) - [Bryn Mawr-Skyway Hotels](https://www.expedia.co.uk/Bryn-Mawr-Skyway-Seattle-Hotels.0-n158768-0.Travel-Guide-Filter-Hotels) - 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