Cheap flights from Seattle to Chicago from $59
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Chicago departing on 5/28. 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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American Airlines flights from Seattle to Chicago O'Hare Intl Airport
Our best American Airlines deals on Seattle to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines flights from Seattle to Chicago O'Hare Intl Airport
Our best Alaska Airlines deals on Seattle to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Seattle to Chicago O'Hare Intl Airport
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 to Chicago O'Hare Intl Airport?
The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Seattle averaging around $258.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $415. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $560.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Flying to Chicago O'Hare Intl Airport from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $291 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $494. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Seattle/Tacoma Intl to Chicago O'Hare Intl flight route?
Fly from Seattle/Tacoma Intl to Chicago O'Hare Intl for the best Seattle/Tacoma Intl - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Seattle when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $310 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Seattle for as low as $266 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Chicago O'Hare Intl flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Chicago O'Hare Intl?
Spirit Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Chicago O'Hare Intl
What airlines fly to Chicago O'Hare Intl Airport?
Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Seattle according to our data. Alaska Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 7 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Chicago O'Hare Intl Airport on average per day?
As of April 2025, 44 flights take off from Seattle and land in Chicago O'Hare Intl Airport each day. The most common flight departure time for this route is 11:00AM, with 55% of daily flights taking off at noon.
How many flights depart from Seattle to Chicago O'Hare Intl Airport on average per week?
The number of flights available between Seattle and Chicago O'Hare Intl Airport is 312 per week as of April 2025. The most frequent departure day is Tue, with 20% of weekly flights leaving on this day.
When to book flights from Seattle to Chicago O'Hare Intl Airport
Cheap Seattle to Chicago O'Hare Intl Airport (SEA to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Chicago O'Hare Intl Airport
How far is Seattle/Tacoma Intl to Chicago O'Hare Intl by plane?
Seattle/Tacoma Intl and Chicago O'Hare Intl are 1716.3 mi apart from one another. In terms of flight time, this usually takes a little over 3h 57m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport is 7 as of April 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare 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 Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Seattle and Chicago O'Hare Intl Airport, the leading plane model is Boeing 737-800, making up 19.57% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 16.67%, Boeing 737-800 Passenger/BBJ2 (winglets) with 10.57%, and Airbus A320-100/200 with 10.53%.
What is the most popular airline from Seattle to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Seattle to Chicago O'Hare Intl Airport is Alaska Airlines, representing 33% of all bookings. The subsequent popular airlines are Delta at 29%, United Airlines at 22%, and American Airlines at 12%.
Best airlines flying from Seattle to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Seattle to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $107 | Free Cancellation | Rating 6.3 7,956 reviews | |||
| PriceFrom $114 | Free Cancellation | Rating 7.9 2,405 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 8.0 7,929 reviews | |||
| PriceFrom $137 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $160 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $166 | Free Cancellation | Rating 8.0 9,961 reviews |
Delta Flights From Seattle to Chicago O'Hare Intl Airport
Delta flies from Seattle to Chicago O'Hare Intl Airport around 17 times per week, with 7,929 momondo users rating the airline 8.0/10. The cheapest Delta deal from Seattle to Chicago O'Hare Intl Airport in the last 72 hours was $129 (round-trip), much lower than the average airfare cost of $309 for Delta flights on this route.
Alaska Airlines Flights From Seattle to Chicago O'Hare Intl Airport
Across 9,961 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from Seattle to Chicago O'Hare Intl Airport about 31 times each week, with ticket deals ranging from $166 to $330. Price data is based on momondo searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Seattle to Chicago?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Chicago for you.
Can I find flights from Seattle to Chicago with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Chicago from Seattle with this policy.
How can momondo help me find flights from Seattle to Chicago?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Seattle.
I’m not ready to book a flight from Seattle to Chicago right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Chicago 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.