$241 Cheap Flights from Quincy (UIN) to Seattle (SEA)

View $241 flight on Sat, May 16, 2026Opens in a new window

Popular airlines from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Quincy to Seattle (UIN-SEA)

Prices were available within the past 7 days and start at $241 for one-way flights and $539 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$539 Roundtrip, found 4 days ago
$539
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $539 found 4 days ago
Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$544 Roundtrip, found 4 days ago
$544
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $544 found 4 days ago
Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$544 Roundtrip, found 4 days ago
$544
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $544 found 4 days ago
Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$549 Roundtrip, found 4 days ago
$549
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $549 found 4 days ago
Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$555 Roundtrip, found 4 days ago
$555
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $555 found 4 days ago
Contour Airlines
Sat, Aug 22 - Wed, Sep 2
UIN
Quincy
SEA
Seattle
$562 Roundtrip, found 1 day ago
$562
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Sat, Aug 22 from Quincy to Seattle, returning Wed, Sep 2, priced at $562 found 1 day ago
Contour Airlines
Thu, Jun 25 - Mon, Jun 29
UIN
Quincy
SEA
Seattle
$563 Roundtrip, found 2 hours ago
$563
Roundtrip
found 2 hours ago
Select Contour Airlines flight, departing Thu, Jun 25 from Quincy to Seattle, returning Mon, Jun 29, priced at $563 found 2 hours ago
Contour Airlines
Sun, Apr 26 - Sun, May 3
UIN
Quincy
SEA
Seattle
$565 Roundtrip, found 4 days ago
$565
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sun, Apr 26 from Quincy to Seattle, returning Sun, May 3, priced at $565 found 4 days ago
Contour Airlines
Sat, Aug 22 - Wed, Sep 2
UIN
Quincy
SEA
Seattle
$572 Roundtrip, found 1 day ago
$572
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Sat, Aug 22 from Quincy to Seattle, returning Wed, Sep 2, priced at $572 found 1 day ago
Contour Airlines
Fri, May 15 - Mon, May 18
UIN
Quincy
SEA
Seattle
$577 Roundtrip, found 2 days ago
$577
Roundtrip
found 2 days ago
Select Contour Airlines flight, departing Fri, May 15 from Quincy to Seattle, returning Mon, May 18, priced at $577 found 2 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $770
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $770

Frequently asked questions

How much does a flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $241 and cheap return flights from $539 Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. Return flights often range between $376 and $749. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from UIN to SEA is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter UIN to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Contour Airlines is one of the cheapest airlines offering connecting flights from Quincy, IL (UIN) to Seattle, WA (SEA), with round-trip tickets starting from around $402. This flight includes a layover in O'Hare Intl. (ORD). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
From Quincy Regional-Baldwin Field (UIN) to Seattle-Tacoma International (SEA), the earliest flight usually leaves at around 5:40 AM. This seasonal service is operated by Southern Airways Express and American Airlines, giving you a chance to start your Seattle adventure early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from UIN to SEA with a connection usually takes about 10 hours 30 minutes, traveling roughly 1,626 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for UIN to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Quincy Regional-Baldwin Field (UIN)?
If you're planning to travel to Seattle from Quincy Regional-Baldwin Field (UIN), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like O'Hare Intl. (ORD) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Quincy, IL (UIN-Quincy Regional-Baldwin Field) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Quincy Regional-Baldwin Field
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
$539
Distance
1625 mi

Book with confidence

Quincy to Seattle Flights

The cheapest times to fly from Quincy to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Quincy to Seattle are during the month of April. You can find some of the cheapest flights from Quincy to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Quincy to Seattle

Sunday is one of the best days to book for cheap flights from Quincy to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Quincy to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Quincy to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $241 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Quincy to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Quincy to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Quincy to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia