How do most travelers feel about United Airlines?

Cheapflights users who travel with United Airlines (a popular airline from Seattle to Chicago) have rated them a 8.0/10. This rating comes from 10,476 reviews. If you are looking to travel SEA-CHI, search your dates above.

Can I get a flight from Seattle to Chicago on United Airlines for under $400?

Cheapflights users have found 25 United Airlines flights for under $400 on the SEA-CHI route. Prices on flights to Chicago from Seattle can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Currently, the most affordable month to book a United Airlines flight from Seattle to Chicago in February, with an average price of $244. Conversely, traveling with United Airlines from Seattle to Chicago in June will be the most expensive, with an average cost of $326. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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.

Fly United Airlines from SEA to Chicago as low as $105

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Cheapflights users flying from Seattle to Chicago on United Airlines typically fly into Chicago O'Hare Intl and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

United Airlines flights from Seattle to Chicago in 2024

Popular in	July
Cheapest in	February
Average price (all airlines)	$332
One-way from	$105
Round-trip from	$154

Highest demand for flights from Seattle/Tacoma Intl to Chicago; 19% potential price increase.

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Best time to find cheap flights from Seattle/Tacoma Intl to Chicago; 3% potential price drop.

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Average price for all Seattle/Tacoma Intl to Chicago flights (one-way and round-trip).

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Cheapest one-way United Airlines flight from Seattle/Tacoma Intl to Chicago

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Cheapest round-trip United Airlines flight from Seattle/Tacoma Intl to Chicago

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Can I get a flight from Seattle to Chicago on United Airlines for under $400?
Cheapflights users have found 25 United Airlines flights for under $400 on the SEA-CHI route. Prices on flights to Chicago from Seattle can vary based on many factors including dates. To look at price based on your preferred dates, click here.
How do most travelers feel about United Airlines?
Cheapflights users who travel with United Airlines (a popular airline from Seattle to Chicago) have rated them a 8.0/10. This rating comes from 10,476 reviews. If you are looking to travel SEA-CHI, search your dates above.

Cheapest United Airlines flights from Seattle to Chicago

Tue 6/117:00 amSEA - ORD

Nonstop4h 06mUnited Airlines

Tue 6/181:28 pmORD - SEA

Nonstop4h 40mUnited Airlines

Deal found 5/27$179

Pick Dates

Wed 6/1211:59 pmSEA - ORD

Nonstop3h 58mUnited Airlines

Wed 6/197:45 pmORD - SEA

Nonstop4h 38mUnited Airlines

Deal found 5/27$206

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Wed 6/195:10 pmSEA - ORD

Nonstop4h 00mUnited Airlines

Thu 6/209:20 pmORD - SEA

Nonstop4h 38mUnited Airlines

Deal found 5/28$209

Pick Dates

Direct flights from Seattle to Chicago on United Airlines

Tue 6/117:00 amSEA - ORD

Nonstop4h 06mUnited Airlines

Tue 6/181:28 pmORD - SEA

Nonstop4h 40mUnited Airlines

Deal found 5/27$179

Pick Dates

Wed 6/1211:59 pmSEA - ORD

Nonstop3h 58mUnited Airlines

Wed 6/197:45 pmORD - SEA

Nonstop4h 38mUnited Airlines

Deal found 5/27$206

Pick Dates

Fri 8/2310:59 pmSEA - ORD

Nonstop4h 01mUnited Airlines

Sun 8/257:45 pmORD - SEA

Nonstop4h 37mUnited Airlines

Deal found 5/28$209

Pick Dates

Last minute deals on Cheapflights

Thu 6/612:25 amSEA - ORD

Nonstop3h 56mUnited Airlines

Tue 6/181:28 pmORD - SEA

Nonstop4h 40mUnited Airlines

Deal found 5/28$354

Pick Dates

Sun 6/27:00 amSEA - ORD

Nonstop4h 06mUnited Airlines

Sun 6/27:45 pmORD - SEA

Nonstop4h 38mUnited Airlines

Deal found 5/26$379

Pick Dates

Thu 6/612:25 amSEA - ORD

Nonstop3h 56mUnited Airlines

Mon 6/107:45 pmORD - SEA

Nonstop4h 38mUnited Airlines

Deal found 5/27$384

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One-way United Airlines flights to Chicago from Seattle

Thu 6/1311:59 pmSEA - ORD

Nonstop3h 58mUnited Airlines

Deal found 5/27$105

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Sat 8/317:45 pmSEA - ORD

1 stop7h 53mUnited Airlines

Deal found 5/28$114

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Tue 6/255:10 pmSEA - ORD

Nonstop4h 00mUnited Airlines

Deal found 5/28$120

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Best time to book a flight from Seattle to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Seattle with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in Chicago by month

CHI Temperature	23 - 73.4 °F

CHI

Temperature

23 - 73.4 °F

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).

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Fly from Seattle to Chicago on another airline
Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Alaska Airlines flights from Seattle/Tacoma Intl to Chicago

Delta flights from Seattle/Tacoma Intl to Chicago

Other United Airlines flights from Seattle
Browse through other United Airlines flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

United Airlines flights from Seattle to Denver

United Airlines flights from Seattle to New York

United Airlines flights from Seattle to San Francisco

United Airlines flights from Seattle to Chicago

Other popular destinations in North America
If Chicago is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Flights to New York

Flights to Los Angeles

Flights to San Francisco

Flights to Fort Lauderdale

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

United Airlines flights from Chicago to Seattle/Tacoma Intl

United Airlines flights from Seattle to Denver

United Airlines flights from Seattle to New York

United Airlines flights from Seattle to San Francisco

United Airlines flights from Seattle to Denver

United Airlines flights from Seattle to San Francisco

United Airlines flights from Seattle to Chicago

United Airlines flights from Seattle to Denver

United Airlines flights from Seattle to New York

United Airlines flights from Seattle to Denver

United Airlines flights from Seattle to San Francisco

United Airlines flights from Seattle to Chicago

United Airlines flights from Seattle to San Francisco

United Airlines flights from Seattle to New York

United Airlines flights from Seattle to Chicago

See what others are saying about United Airlines

United Airlines

7.4

Good

10,799 reviews

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Overview

Recent reviews

8.0

Very good|Mar 2022

Just a normal flight - all was just fine and reasonably comfortable given the physical limitations of flight - arrived safe and on time which are the important things. The only thing that could have been better - that was controllable - was the food - I am always amazed that it can get worse than it was before but United seems to have experts in this area and they should be commended on continuing to make the food worse when it seemed like it as as bad as it could get while using actual food as inputs. I'm guessing we are pretty close to rock bottom by now but United always seems be able to give that extra effort to eliminate that last little bit of remaining quality and taste. I would recommend that United stop having their accountants plan and prepare meals and snacks and let actual chefs, or at least cooks prepare them in the future.

2.0

Poor|Nov 2021

Clear attendant at the Logan airport was awful. Rude and inconsiderate to everyone. Let every clear customer in front of every priority United customer. Usually they switch off groups but we were waiting 30 minutes when we were third from the front because every clear customer was let in front of us.

8.0

Very good|Jan 2022

Everything was great. Even though the flight got delayed 10 minutes we arrived on time

5.9

Fair|Aug 2021

Boarding was too long. The Seats are too thin. The snacks were water and a cookie.

6.0

Okay|Mar 2022

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Cheapflights users flying from Seattle to Chicago on United Airlines typically fly into Chicago O'Hare Intl and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

United Airlines flights from Seattle to Chicago in 2024

Find detailed information about United Airlines flights from Seattle to Chicago. Explore the options provided by United Airlines to plan your journey from Seattle to Chicago. Data last updated May 28, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Seattle to Chicago on United Airlines for under $400?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Seattle to Chicago

Direct flights from Seattle to Chicago on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to Chicago from Seattle

Best time to book a flight from Seattle to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Seattle with our price prediction graph.

Temperature and rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Seattle to Chicago on another airline
Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Other United Airlines flights from Seattle
Browse through other United Airlines flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Browse through other United Airlines flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Complete your trip
Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Seattle and Chicago
Choose from other airlines serving Seattle and Chicago.

Choose from other airlines serving Seattle and Chicago.

Other popular destinations in North America
If Chicago is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

If Chicago is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

See what others are saying about United Airlines

Overview

Recent reviews

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Flights

United Airlines flights from Seattle to Chicago (SEA - CHI)

Cheapflights users flying from Seattle to Chicago on United Airlines typically fly into Chicago O'Hare Intl and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

United Airlines flights from Seattle to Chicago in 2024

Find detailed information about United Airlines flights from Seattle to Chicago. Explore the options provided by United Airlines to plan your journey from Seattle to Chicago. Data last updated May 28, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Seattle to Chicago on United Airlines for under $400?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Seattle to Chicago

Direct flights from Seattle to Chicago on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to Chicago from Seattle

Best time to book a flight from Seattle to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Seattle with our price prediction graph.

Temperature and rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Seattle to Chicago on another airlineConsider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

See what others are saying about United Airlines

Overview

100% Free

Book with Flexibility

Travel Smart

Fly from Seattle to Chicago on another airline
Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.