$617+ Cheap flights from Quincy, IL to Seattle (UIN - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
UIN — SEA
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Quincy to Seattle
Cheapest
Best
Last-minute
Cheapest flights from Quincy to SeattleExplore the most affordable flight options available from Quincy to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Quincy to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:35 pm -
3 stops28h 58m
Sat 11/214:37 pm -
2 stops19h 03m
Deal found 11/1![Multiple Airlines logo]()
$617
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:55 am -
3 stops31h 27m
Mon 11/234:37 pm -
2 stops19h 03m
Deal found 11/4![Multiple Airlines logo]()
$793
This Booking.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:55 am -
1 stop25h 55m
Thu 11/1911:42 pm -
1 stop11h 58m
Deal found 10/31![Multiple Airlines logo]()
$814
Best flights from Quincy to SeattleDiscover carefully curated flight deals from Quincy to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Quincy to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:35 pm -
3 stops28h 58m
Sat 11/214:37 pm -
2 stops19h 03m
Deal found 11/1![Multiple Airlines logo]()
$617
This Booking.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:55 am -
1 stop25h 55m
Thu 11/1911:42 pm -
1 stop11h 58m
Deal found 10/31![Multiple Airlines logo]()
$814
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:55 am -
3 stops31h 27m
Mon 11/234:37 pm -
3 stops19h 03m
Deal found 11/4![Multiple Airlines logo]()
$920
Last-minute flights from Quincy to SeattleDiscover last-minute flight deals from Quincy to Seattle. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Quincy to Seattle. Data last updated November 5, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:55 am -
1 stop25h 55m
Thu 11/1911:42 pm -
1 stop11h 58m
Deal found 10/31![Multiple Airlines logo]()
$814
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:35 pm -
3 stops28h 58m
Sat 11/214:37 pm -
2 stops19h 03m
Deal found 11/1![Multiple Airlines logo]()
$617
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:55 am -
3 stops31h 27m
Mon 11/234:37 pm -
2 stops19h 03m
Deal found 11/4![Multiple Airlines logo]()
$793
Find flight deals from Quincy to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Quincy (UIN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2026.
Round-trip from | $617 (Mytrip) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Quincy to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 5, 2026.
Use the filters below to find and compare flights from Quincy to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
QuincySeattle
UIN Quincy Regional - SEA Seattle/Tacoma Intl
UINSEA
Quincy Regional
Tue 11/17
3:35 pm-6:33 pm
3 stops28h 58m
Seattle/Tacoma Intl
Sat 11/21
4:37 pm-1:40 pm
2 stops19h 03m
$617
Quickest round-trip
QuincySeattle
UIN Quincy Regional - SEA Seattle/Tacoma Intl
UINSEA
Quincy Regional
Sun 11/15
9:55 am-9:50 am
1 stop25h 55m
Seattle/Tacoma Intl
Thu 11/19
11:42 pm-1:40 pm
1 stop11h 58m
$814
QuincySeattle
UIN Quincy Regional - SEA Seattle/Tacoma Intl
UINSEA
Quincy Regional
Thu 11/19
9:55 am-3:22 pm
3 stops31h 27m
Seattle/Tacoma Intl
Mon 11/23
4:37 pm-1:40 pm
3 stops19h 03m
$920
Sorted by cheapest first
Best time to book a flight from Quincy to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Quincy with our price prediction graph.
UIN-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Quincy to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
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