Cheap flights from Seattle (SEA) to Chicago (CHI)

SEA — CHI
Feb 12 — Feb 191

The best prices from Seattle/Tacoma Intl to Chicago are usually found in February or January, booked 22 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

How to find the cheapest flight from Seattle (SEA) to Chicago (CHI)

All the information you need to plan the best SEA to CHI flight in 2023: compare Seattle to Chicago flight prices with the expected peak season, weather and rainfall in Chicago.

SEA - CHI

Price

$211 - $528

CHI

Temperature

23 - 73.4 °F

CHI

Rainfall

1.7 - 4.9 inches

Popular inJuneHigh demand for flights, 31% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 42% potential price drop
Round-trip from$211From Seattle/Tacoma Intl to Chicago (CHI)
One-way from$92One-way flight from Seattle/Tacoma Intl to Chicago (CHI)

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

Flying to your destination on a Sunday 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.

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

Users have found that booking a flight from Seattle to Chicago at least 21 days early can save you up to 13% on average compared to booking a flight this week. If booking 21 days before your flight isn’t an option for you, users have found flights from Seattle to Chicago for as little as $409 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 $476 for flights departing within the next 3 days.

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

The best pricing can be found in the month of February. Prices to Chicago from Seattle average $365. You can even find prices in February for less than $365, as users have found deals to Chicago from as low as $157. The month of June 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 44%.

When is the cheapest time to fly from Seattle to Chicago (SEA - CHI)?

It’s typically best to fly out from Seattle to Chicago in the evening. Doing so could potentially save you 17% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Seattle to Chicago in February, March 2023

The best prices found for SEA to CHI flights for February, March

Seattle to Chicago 2023 flight deals

Cheap flights to Chicago from Seattle found for this year

Cheap Delta flights from Seattle to Chicago

  • One of the most popular airlines traveling from Seattle to Chicago is Delta. Flights from Delta traveling this route typically cost $401.64 RT. This price is typically 26% cheaper than other airlines that offer Seattle to Chicago flights. When booking this route, the cheapest RT price found was $128. Seattle/Tacoma Intl Airport is the most common Seattle airport to take off from when flying to Chicago. Chicago O'Hare Intl Airport is the most popular arrival airport in Chicago. When flying from Seattle to Chicago, Delta flights are 25% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Seattle to Chicago

  • If you’re traveling from Seattle to Chicago, one of the more common airlines traveling that route is Spirit Airlines. Seattle to Chicago flights are typically 25% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $482.31 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Seattle to Chicago on Spirit Airlines, the most popular airport to depart from is Seattle/Tacoma Intl Airport and the most popular airport to arrive at is Chicago O'Hare Intl Airport. When flying from Seattle to Chicago, Spirit Airlines flights are 23% more popular than any other airline flying that same route.

Non-stop flights to Chicago from Seattle

Save time with Seattle to Chicago direct flight deals

Last minute flights from Seattle to Chicago

Late deals on return flights to Chicago from Seattle, departing today and this week

One-way flights to Chicago from Seattle

The cheapest one-way flights from Seattle to Chicago

Reviews of Airlines Servicing Chicago

Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

Alaska Airlines
8.0
Very good
1,365 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

Delta
7.9
Good
2,079 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

American Airlines
7.4
Good
1,670 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

Spirit Airlines
6.9
Okay
716 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

Frontier
6.1
Okay
538 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Boarding

8.3

Entertainment

7.1

Food

7.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This being our first experience with Alaska, was absolutely amazing! Every person we met was extremely helpful and nice. The service was great. I am now an Alaska Airlines convert!

Related info for your journey

Useful info, stats and facts about Seattle to Chicago flights.

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

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 16 outbound flights to Chicago per day. 11 airlines have flights to Chicago from Seattle/Tacoma Intl on a regular basis.

Which airlines flying from Seattle/Tacoma Intl to Chicago have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to Chicago that may be offering flexible cancellation policies are Alaska Airlines, Delta, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Seattle to Chicago for under $200 on Cheapflights?

Yes, there are multiple flights from Seattle to Chicago for under $200. The cheapest flight booked recently is on Delta for just $105, but on average you can expect to pay $144.

Are there nonstop flights from Seattle to Chicago for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Chicago under $200. A good price for a nonstop flight from Seattle to Chicago is less than $193.

Are there last-minute flights available from Seattle to Chicago for under $200?

There are currently 20+ open flights from Seattle to Chicago within the next 7 days for less than $200.

What days are nonstop flights available from Seattle to Chicago?

Nonstop flights are available for this route on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How many flights depart from Seattle to Chicago on average per day?

On average 19 flights depart from Seattle to Chicago per day.
Early Morning (Midnight to 6am) - 11% of flight departures
Morning (6am - Noon) - 58% of flight departures
Evening (6pm - Midnight) - 32% of flight departures

How long is the flight from Seattle to Chicago?

Departing from Seattle to Chicago will take you 3h 59m. Seattle and Chicago are separated by a distance of 1725 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Seattle to Chicago is Delta. Our recent data shows that you can find tickets from as low as $105 on this airline. Additional options worth looking into are Spirit Airlines and Frontier, starting at $122 and $166 round-trip. Users have found that Delta is 71% cheaper than the other options available to this destination.

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

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $54. Frontier flights start at $74 while deals on Alaska Airlines start at $86 one-way.

What are the most popular routes from Seattle to Chicago?

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.

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

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

What are the most reliable airlines from Seattle to Chicago?

No one likes to see their flight delayed. When booking a flight from Seattle to Chicago consider choosing Austrian Airlines (88%), SWISS (85%) or Brussels Airlines (85%) as they are the most reliable in getting you off to your destination on time.

What are the cheapest flights from Seattle to Chicago?

Looking for the cheapest flight from Seattle to Chicago? While on average our users pay $1,331, our data indicates the cheapest price to be $108. The most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl), is priced around $105.

Alternative routes for Seattle to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Molinefrom $378 pp
Seattle to Marionfrom $439 pp
Spokane to Peoriafrom $518 pp
Seattle to Peoriafrom $528 pp

Top 7 airlines flying from Seattle to Chicago

The chart below displays the airlines Cheapflights users traveling from Seattle to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$14Average$22FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Alaska AirlinesCheapest$128Average$402FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
American AirlinesCheapest$129Average$424FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$138Average$482FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$157Average$337FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
FrontierCheapest$167Average$258FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$208Average$375FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights

Hourly flight availability from Seattle to Chicago

See what time of day planes typically take off from Seattle to Chicago
4%of flight departuresEarly morningMidnight to 6 am
67%of flight departuresMorning6 am to noon
10%of flight departuresAfternoonNoon to 6 pm
19%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Chicago

See how many times per day planes take to the skies headed from Seattle to Chicago
Sunday7daily flights
Monday26daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday21daily flights
Friday13daily flights
Saturday6daily flights
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