Search & Compare - Chicago to Seattle Flights & Tickets

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Cheap flights from Chicago to Seattle (ORD to SEA)

Looking for a cheap last-minute deal or the best round-trip flight from Chicago to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

Recent airfare deals on Chicago to Seattle

Frontier Airlines  F9
Frontier Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 181

One-way F9 fare found on 2025-06-04
United Airlines  UA
United Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 340

One-way UA fare found on 2025-06-04
Frontier Airlines  F9
Frontier Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 342

One-way F9 fare found on 2025-06-04
United Airlines  UA
United Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 372

One-way UA fare found on 2025-06-04
Delta Airlines  DL
Delta Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 383

One-way DL fare found on 2025-06-04
United Airlines  UA
United Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 403

One-way UA fare found on 2025-06-04
United Airlines  UA
United Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 408

One-way UA fare found on 2025-06-04
Delta Airlines  DL
Delta Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 417

One-way DL fare found on 2025-06-04
United Airlines  UA
United Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 602

One-way UA Nonstop fare found on 2025-06-04
Frontier Airlines  F9
Frontier Airlines
Chicago
2025-06-12
Seattle
2025-06-15
USD 1112

One-way F9 fare found on 2025-06-04


*Prices are per person and are for e-tickets and include all taxes & fees in USD.
*Fareleaders always attempts to get accurate pricing, however, prices are not guaranteed.
*Fareleaders is not seller, we aggregate tones of data for you from other online travel agencies and external sources.

Facts to know while booking flights from Chicago to Seattle

What are the airports in Chicago?
MDW,ORD
What’s the most popular airline flying from ORD to SEA?
The most popular airline flying from Chicago to Seattle are American Airlines, Hawaiian Airlines, JetBlue Airways, Sun Country Airlines, Southwest Airlines, Spirit Airlines, Frontier Airlines, United Airlines, Alaska Airlines, Delta Airlines
Can I fly from ORD to SEA non-stop?
Yes, you can fly ORD to SEA non-stop on American Airlines, Hawaiian Airlines, Southwest Airlines, United Airlines, Alaska Airlines, Delta Airlines
Which airlines fly nonstop between Chicago and Seattle?
The non-stop flights between Chicago and Seattle are American Airlines, Hawaiian Airlines, Southwest Airlines, United Airlines, Alaska Airlines, Delta Airlines.
What’s the earliest departure time from ORD to SEA Airport?
The earliest flight leaves ORD at 5:00 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Chicago to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ORD to SEA?
Read the fare rules of the Chicago to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Chicago and Seattle?
Oneworld, NULL, NULL, NULL, NULL, NULL, NULL, Star Alliance, Oneworld, SkyTeam operate flights between Chicago and Seattle
How long does a flight from Chicago to Seattle take?
It takes approximately 4 hour to fly non-stop from ORD to SEA, which is 1720.56 miles by air.
Which airlines provide the cheapest flights from Chicago (ORD) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from ORD were found on Delta Airlines : USD 383
Do I need a passport to fly between ORD and SEA?
No
What’s the latest departure time from ORD to SEA ?
The last flight leaves ORD at 8:4200 pm

Flights from Chicago to Seattle

Origin AirportChicago O'Hare International , Chicago, US
Destination AirportSeattle Tacoma International , Seattle, US
Served by AirlinesAmerican Airlines, Hawaiian Airlines, JetBlue Airways, Sun Country Airlines, Southwest Airlines, Spirit Airlines, Frontier Airlines, United Airlines, Alaska Airlines, Delta Airlines
Lowest PriceDelta Airlines : USD 383
Distance1721 miles

Airlines Flying from Chicago O'Hare International

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