Cheap flights from Chicago to Seattle from $45
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Seattle departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to Seattle by changing tabs
Find the cheapest one-way flights from Chicago to Seattle
If you're looking for one-way flights from Chicago to Seattle, view some of our deals below provided by Alaska Airlines, Delta and Frontier
Find the cheapest direct flights from Chicago to Seattle
Search last-minute flights to Seattle from Chicago
Find and compare round-trip flight prices for your last-minute flight from Chicago to Seattle
Spirit Airlines flights from Chicago to Seattle
Our best Spirit Airlines deals on Chicago to Seattle flight tickets
American Airlines flights from Chicago to Seattle
Our best American Airlines deals on Chicago to Seattle flight tickets
How to get the cheapest flight ticket from Chicago to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from Chicago to Seattle?
January. The cheapest time of year to fly to Seattle from Chicago is January. Most expensive is July
What is the cheapest day to depart Chicago for Seattle?
Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly from Chicago to Seattle?
In the afternoon. Chicago to Seattle flights are approximately 3% more expensive at noon than in the afternoon
What is the cheapest airline that flies to Seattle from Chicago?
Frontier. Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Chicago to Seattle
What is the cheapest Chicago to Seattle flight route?
Chicago O'Hare Intl - Seattle/Tacoma Intl. Fly from Chicago O'Hare Intl to Seattle/Tacoma Intl for the best Chicago - Seattle flight prices
How far in advance should you book Chicago to Seattle flights?
29 days before. The cheapest time to buy a flight from Chicago to Seattle is approximately 29 days to departure
How many flights depart from Chicago to Seattle on average per day?
The number of flights available between Chicago and Seattle is 22 per day as of July 2024. The most frequent departure time is 5:00PM, with 41% of daily flights leaving in the afternoon.
How many flights depart from Chicago to Seattle on average per week?
160 flights are operational weekly from Chicago to Seattle as of July 2024. The most popular departure day for this route is Monday, with 18% of flights per week taking off on this day.
What cabin class options are available on Chicago to Seattle flights?
There are 4 cabin classes available to choose from on Chicago to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Chicago to Seattle flights?
You could potentially save up to 21% on your flight if you consider stops on a Chicago to Seattle flight.
How have Chicago to Seattle flight prices changed over time?
As of July 2024, prices for Chicago to Seattle flights are approximately 30% cheaper when compared to flights at the same time last year.
Cheap Chicago to Seattle (CHI to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Seattle
How far is Chicago to Seattle/Tacoma Intl by plane?
The straight-line distance from Chicago to Seattle/Tacoma Intl is 1732.3 mi. By plane, this route typically takes 4h 25m.
When did momondo last update prices for flights from Chicago to Seattle/Tacoma Intl Airport?
Prices for flights from Chicago to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Chicago to Seattle/Tacoma Intl Airport?
As of July 2024, there are 7 operators available to choose from for flights from Chicago to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Chicago to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Chicago to Seattle
Compare and see reviews for airlines that fly from Chicago to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $79 | Free Cancellation | Rating 8.0 9,365 reviews | |||
| PriceFrom $99 | Free Cancellation | Rating 8.0 9,630 reviews | |||
| PriceFrom $109 | Free Cancellation | Rating 7.3 10,000 reviews | |||
| PriceFrom $114 | Free Cancellation | Rating 7.4 10,000 reviews | |||
| PriceFrom $126 | Free Cancellation | Rating 6.2 3,835 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 6.3 8,407 reviews |
Alaska Airlines Flights From Chicago to Seattle
Alaska Airlines flies from Chicago to Seattle around 20 times per week, with 9,365 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Chicago to Seattle in the last 72 hours was $79 (round-trip), much lower than the average airfare cost of $316 for Alaska Airlines flights on this route.
Delta Flights From Chicago to Seattle
Another popular option for Chicago to Seattle flights is Delta (8.0/10, 9,630 ratings). Delta flies from Chicago to Seattle around 14 times per week, with deals starting from $99 round-trip and rising to an average price of around $440.
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Seattle?
It is quick and easy to find Chicago to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.
Can I find flights from Chicago to Seattle with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seattle from Chicago with this policy.
How can momondo help me find flights from Chicago to Seattle?
Once all potential Chicago to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Chicago to Seattle right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.