Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Seattle
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Cheap bus & train deals from Chicago to Seattle
All round-trip flight deals to Seattle
See travel insights to Seattle from
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 to Seattle?
The cheapest month to fly to Seattle from Chicago is in January. Flight prices, which tend to average around R3 240, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of R3 584.
What is the cheapest day to depart on your flight to Seattle?
The cheapest day to depart from Chicago to Seattle is on a Monday. Travellers who choose to depart for Seattle on a Monday will often find tickets for as low as R0. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Friday is R6 558.
What is the cheapest time of day to depart on your flight to Seattle?
According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from Chicago to Seattle at midday for as low as R0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are R6 558 on average. Flights to Seattle from Chicago in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Chicago to Seattle/Tacoma Intl flight route?
Fly from Chicago O'Hare Intl to Seattle/Tacoma Intl for the best Chicago - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
The ideal time to book your flight to Seattle is 29 days in advance, when prices tend to average R4 932. However, in the past 72 hours, people saw flights from Chicago for as low as R67 158.
What cabin class options are available on Chicago to Seattle/Tacoma Intl flights?
There are 1 cabin classes available to choose from on Chicago to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
When to book flights from Chicago to Seattle
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?
Chicago and Seattle/Tacoma Intl are 2787,8 km apart from one another.
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 are refreshed on a daily basis.
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 required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago to Seattle?
Based on momondo bookings for flights between Chicago and Seattle, the leading plane model is Boeing 737-800, making up 25,29% of the total bookings. Other popular models include Boeing 737-900 with 20,84%, Boeing 737-800 Passenger/BBJ2 (winglets) with 11,05%, and Boeing 737 MAX 9 with 10,87%.
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Seattle?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Chicago.
Can I find flights from Chicago to Seattle with flexible booking policies on momondo?
Flights from Chicago to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Chicago to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Seattle.
I’m not ready to book a flight from Chicago to Seattle right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Chicago to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.