Question 1

What are the cheapest airlines flying from Seattle to Chicago round-trip?

Accepted Answer

Our cheapest airline available from Seattle to Chicago is Southwest. Our recent data shows that you can find tickets from as low as $179 on this airline. Additional options worth looking into are Delta and Spirit Airlines, starting at $180 and $182 round-trip. Users have found that Southwest is 38% cheaper than the other options available to this destination.

Question 2

What are the cheapest airlines to fly from Seattle to Chicago one-way?

Accepted Answer

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $94. Southwest flights start at $94 while deals on Spirit Airlines start at $96 one-way.

Question 3

How far ahead should I book a flight from Seattle to Chicago?

Accepted Answer

The price you pay for your flight from Seattle to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

What is the cheapest month to book a flight from Seattle to Chicago?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Seattle to Chicago (average of $232). Flying from Seattle to Chicago in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Seattle to Chicago?

Accepted Answer

Travelers seeking maximum savings on their Seattle to Chicago flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Seattle to Chicago

Accepted Answer

The most flights from SEA to CHI are scheduled on a Wednesday (33 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (12 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Question 9

What are the most popular routes from Seattle to Chicago?

Accepted Answer

While some choose either Seattle/Tacoma Intl - Chicago Midway or Seattle/Tacoma Intl - Chicago Greater Rockford, Seattle/Tacoma Intl - Chicago O'Hare Intl is the most popular route from Seattle to Chicago.

Question 10

What are the cheapest flights from Seattle to Chicago?

Accepted Answer

Looking for the cheapest flight from Seattle to Chicago? While on average our users pay $767, our data indicates the cheapest price to be $98. The most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl), is priced around $153.

Question 11

What are the most reliable airlines from Seattle to Chicago?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Seattle to Chicago consider choosing WestJet (100%), Avianca (97%) or Royal Jordanian (96%) as they are the most reliable in getting you off to your destination on time.

Question 12

What are the most popular airlines that fly from Seattle to Chicago?

Accepted Answer

When booking a flight from Seattle to Chicago, you may want to consider flying on American Airlines, Alaska Airlines or Delta as they are the most popular for this route.

Question 13

What is the cheapest day to fly round-trip from Seattle to Chicago?

Accepted Answer

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Chicago. Check prices with Cheapflights to find a great deal for your trip.

Question 14

How far in advance should I book a flight from Seattle to Chicago?

Accepted Answer

Users have found that booking a flight from Seattle to Chicago at least 54 days early can save you up to 128% on average compared to booking a flight this week. If booking 54 days before your flight isn’t an option for you, users have found flights from Seattle to Chicago for as little as $355 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $599 for flights departing within the next 3 days.

Question 15

What is the cheapest month to fly from Seattle to Chicago?

Accepted Answer

The best pricing can be found in the month of January. Prices to Chicago from Seattle average $290. You can even find prices in January for less than $290, as users have found deals to Chicago from as low as $85. The month of July appears to be one of the more expensive times to travel to Chicago from Seattle. Flying in the targeted month can save you up to 23%.

Question 16

What is the cheapest time of day to fly from SEA to CHI?

Accepted Answer

It’s typically best to fly out from Seattle to Chicago in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

Question 17

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Accepted Answer

Most accurate provider: When it comes to deals on Seattle-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Chicago flight searches over the past month and is updated monthly.

Question 18

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Accepted Answer

Most trusted provider: When it comes to deals on Seattle-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 19

What airport do you fly from for flights from Seattle to Chicago?

Accepted Answer

For a flight from Seattle to Chicago, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 22 outbound flights to Chicago per day. 7 airlines have flights to Chicago from Seattle/Tacoma Intl on a regular basis.

Question 20

Can I find deals for flights from Seattle to Chicago that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Seattle to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 21

How can I find direct flights from Seattle to Chicago?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Chicago.

Question 22

Can I find deals for business class flights from Seattle to Chicago?

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	July
Cheapest in	January
Round-trip from	$179 (Kiwi.com)
One-way from	$94 (Alaska Airlines)

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.

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The best prices from Seattle/Tacoma Intl to Chicago are usually found in January or February, booked 73 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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Find flight deals from Seattle to Chicago

Cheapest flights from Seattle to Chicago
Explore the most affordable flight options available from Seattle to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2024.

Explore the most affordable flight options available from Seattle to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2024.

Best flights from Seattle to Chicago
Discover carefully curated flight deals from Seattle to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2024.

Discover carefully curated flight deals from Seattle to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2024.

Last-minute flights from Seattle to Chicago
Discover last-minute flight deals from Seattle to Chicago. Data last updated December 4, 2024 and is based on user searches.

Discover last-minute flight deals from Seattle to Chicago. Data last updated December 4, 2024 and is based on user searches.

One-way flights from Seattle to Chicago
Search for one-way flight options from Seattle to Chicago. Find affordable one-way fares based on user searches. Data last updated December 4, 2024.

Search for one-way flight options from Seattle to Chicago. Find affordable one-way fares based on user searches. Data last updated December 4, 2024.

Find flights from Seattle to Chicago within your budget

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Chicago in December.

$94+ Cheap flights from Seattle (SEA) to Chicago (CHI)