Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Chicago
The cheapest flights right now
Seattle – Chicago
Outbound – Nov 28, 2026
direct
4h 9m Return – Dec 4, 2026
direct
4h 52m $277
today
Seattle – Chicago
Outbound – Nov 12, 2026
direct
4h 12m Return – Nov 22, 2026
direct
4h 49m $276
today
Seattle – Chicago
Outbound – Oct 31, 2026
direct
3h 55m Return – Nov 7, 2026
direct
4h 45m $283
2 days ago
Seattle – Chicago
Outbound – Nov 1, 2026
direct
4h 6m Return – Nov 8, 2026
direct
4h 42m $281
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$163
Average price of a round trip
$313
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
4h9
A flight from Seattle to Chicago takes on average 4h9.
Best time
October
According to user searches, the ideal month to go to Chicago is October.
The best flight deals for a week
Seattle – Chicago
Outbound – Nov 28, 2026
direct
4h 4m Return – Dec 4, 2026
direct
4h 33m $289
today
Seattle – Chicago
Outbound – Nov 28, 2026
direct
3h 58m Return – Dec 4, 2026
direct
4h 52m $321
today
Seattle – Chicago
Outbound – Nov 7, 2026
direct
3h 50m Return – Nov 14, 2026
direct
4h 45m $326
2 days ago
Seattle – Chicago
Outbound – Nov 14, 2026
direct
4h 16m Return – Nov 21, 2026
direct
4h 41m $370
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from Seattle to Chicago
Check out our tips for booking your flight to Chicago (USA) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $100 (calculation over the last two years). The most touristic season corresponds to the months of October, November and September.
For the cheapest flights, it is advisable to buy your ticket at least 21 days before the departure date.
The airline offering the cheapest flight tickets is American Airlines. A ticket from the airline American Airlines to Chicago costs on average $311.
The airlines that offer the most flights are American Airlines, Alaska Airlines and United Airlines.
Price of flight tickets from Seattle to Chicago
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $163 to $439
- The average price of a flight ticket is about $313
- Prices are lowest for stays in the month of September
- The month in which booking a ticket is cheaper is: October
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 16°C, with a minimum of 13°C and a maximum of 20°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Chicago, USA
airports :
Chicago-Merrill C. Meigs Field Airport (CGX)
Chicago FSS (CHI)
Chicago-Midway International Airport (MDW)
Chicago-O'Hare International Airport (ORD)
local time :
Chicago is in the country USA, the time zone is [[timezone]]. In Chicago, it is currently {toLocalTime}, the temperature is on average 18°C, with a minimum of 13°C and a maximum of 23°C.
The city of Chicago (CHI) has 4 airport(s): Chicago-Merrill C. Meigs Field, Chicago FSS, Chicago-Midway and Chicago-O'Hare
Useful info about Chicago
What is the least touristic period to go to Chicago?
If you want to visit Chicago during the least touristic period, choose the month of October.
What is the most popular time to travel to Chicago?
In Chicago, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Chicago?
According to our data, it is recommended to book your flight 21 days before your departure. If you book your flight ticket 4 weeks before your departure, you may find a price below average. You can also choose morning flights that are 13% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to Chicago is Friday.
What are the arrival and destination airports when traveling between Seattle and Chicago?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Chicago-Midway or Chicago-O'Hare.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Seattle to Chicago?
The journey from Seattle to Chicago can also be done by train. Search on Liligo to compare the different means of transportation.
Are there big differences in weather between Seattle and Chicago?
In summer, the average temperature is 22°C in Chicago and 18°C in Seattle. The average rainfall in summer is 145 mm in Chicago and 38 mm in Seattle. In summer, it is warmer in Chicago and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
