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Springfield

$360+ Cheap flights from Seattle to Springfield, IL (SEA - SPI)

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SPI
Jul 14 — Jul 211
Tue 7/14
Tue 7/21
1 adult, Economy
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Cheap flight deals from Seattle to Springfield

Cheapest flights from Seattle to Springfield
Explore the most affordable flight options available from Seattle to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.

This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:50 am
SEA
-
SPI
1 stop6h 27m
American Airlines
Wed 8/262:51 pm
SPI
-
SEA
1 stop8h 01m
American Airlines
Deal found 6/9$493
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:41 pm
SEA
-
SPI
1 stop6h 26m
American Airlines
Mon 9/142:51 pm
SPI
-
SEA
1 stop8h 45m
American Airlines
Deal found 6/10$525
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:09 pm
SEA
-
SPI
1 stop8h 00m
American Airlines
Mon 7/132:55 pm
SPI
-
SEA
1 stop7h 42m
American Airlines
Deal found 6/9$562
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:28 pm
SEA
-
SPI
1 stop6h 41m
American Airlines
Fri 7/172:55 pm
SPI
-
SEA
1 stop7h 42m
American Airlines
Deal found 6/11$612
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:00 am
SEA
-
SPI
1 stop6h 09m
American Airlines
Mon 6/222:39 pm
SPI
-
SEA
1 stop8h 00m
American Airlines
Deal found 6/11$669
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/92:09 pm
SEA
-
SPI
1 stop8h 00m
American Airlines
Thu 7/162:55 pm
SPI
-
SEA
1 stop7h 42m
American Airlines
Deal found 6/11$690

Find flight deals from Seattle to Springfield

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Springfield (SPI). 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 June 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$493
(American Airlines)

One-way from

$360
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Springfield Capital flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Springfield Capital flights.
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From Seattle/Tacoma Intl to Springfield Capital
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One-way flight from Seattle/Tacoma Intl to Springfield Capital
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Springfield 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 2,558,603 searches. Data last updated June 14, 2026.
Use the filters below to find and compare flights from Seattle to Springfield that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

Wed 9/9

3:41 pm-12:07 am

1 stop6h 26m

Springfield Capital

Mon 9/14

2:51 pm-9:36 pm

1 stop8h 45m

$525

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

Tue 7/7

2:09 pm-12:09 am

1 stop8h 00m

Springfield Capital

Mon 7/13

2:55 pm-8:37 pm

1 stop7h 42m

$562

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

Thu 7/9

2:09 pm-12:09 am

1 stop8h 00m

Springfield Capital

Thu 7/16

2:55 pm-8:37 pm

1 stop7h 42m

$690

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

Fri 7/10

11:07 am-12:09 am

2 stops11h 02m

Springfield Capital

Fri 7/17

2:55 pm-8:37 pm

1 stop7h 42m

$760
Cheapest one-way
Quickest one-way

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

Thu 7/9

8:53 pm-7:41 pm

2 stops44h 48m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Sorted by cheapest first

Compare providers for flights from Seattle to Springfield

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 Springfield in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Best time to book a flight from Seattle to Springfield

Have a flexible travel schedule? Discover the best time to fly to Springfield from Seattle with our price prediction graph.
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 Seattle to Springfield. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Springfield, Illinois?

    For as low as $525, American Airlines can have you in Springfield, Illinois from Seattle in 6h 26m. Airlines will cover a distance of 1698 mi.

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

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

  • How can I find direct flights from Seattle to Springfield?

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

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

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

See more FAQs

Traveling to a place near Springfield?

Book flights to Springfield if you plan to visit one of these locations
Lincoln

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