$472+ Cheap flights from Seattle to Springfield, IL (SEA - SPI)
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SPI
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Springfield with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Seattle to Springfield
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Last-minute
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Cheapest flights from Seattle to SpringfieldExplore 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 September 10, 2026.
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 September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 9/226:18 am -
1 stop6h 02m
Sat 9/262:51 pm -
1 stop8h 45m
Deal found 9/7![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/116:15 am -
1 stop6h 05m
Wed 9/162:51 pm -
1 stop8h 45m
Deal found 9/10![American Airlines logo]()
$628
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Wed 9/302:51 pm -
1 stop8h 45m
Deal found 9/6![American Airlines logo]()
$677
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/183:41 pm -
1 stop6h 26m
Mon 9/212:51 pm -
1 stop8h 45m
Deal found 9/10![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Mon 9/282:51 pm -
1 stop8h 45m
Deal found 9/6![American Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Fri 10/26:00 am -
2 stops10h 51m
Deal found 9/6![American Airlines logo]()
$775
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/256:15 am -
1 stop6h 05m
Thu 10/16:00 am -
1 stop8h 50m
Deal found 9/6![American Airlines logo]()
$779
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/2510:17 am -
2 stops11h 50m
Tue 9/296:00 am -
2 stops12h 42m
Deal found 9/6![American Airlines logo]()
$873
Best flights from Seattle to SpringfieldDiscover carefully curated flight deals from Seattle to Springfield that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Seattle to Springfield that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 9/226:18 am -
1 stop6h 02m
Sat 9/262:51 pm -
1 stop8h 45m
Deal found 9/7![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Wed 9/302:51 pm -
1 stop8h 45m
Deal found 9/6![American Airlines logo]()
$677
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/13:41 pm -
1 stop6h 26m
Sun 10/42:51 pm -
1 stop8h 45m
Deal found 9/10![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/243:41 pm -
1 stop6h 26m
Mon 9/282:51 pm -
1 stop8h 45m
Deal found 9/9![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/253:41 pm -
1 stop6h 26m
Tue 9/292:51 pm -
1 stop8h 45m
Deal found 9/6![American Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/2511:22 am -
2 stops10h 45m
Thu 10/16:00 am -
2 stops15h 48m
Deal found 9/6![American Airlines logo]()
$873
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/267:51 am -
2 stops14h 16m
Fri 10/26:00 am -
2 stops11h 17m
Deal found 9/6![American Airlines logo]()
$873
Last-minute flights from Seattle to SpringfieldDiscover last-minute flight deals from Seattle to Springfield. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Springfield. Data last updated September 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/116:15 am -
1 stop6h 05m
Wed 9/162:51 pm -
1 stop8h 45m
Deal found 9/10![American Airlines logo]()
$628
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/183:41 pm -
1 stop6h 26m
Mon 9/212:51 pm -
1 stop8h 45m
Deal found 9/10![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/7. 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 9/226:18 am -
1 stop6h 02m
Sat 9/262:51 pm -
1 stop8h 45m
Deal found 9/7![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/256:15 am -
1 stop6h 05m
Thu 10/16:00 am -
1 stop8h 50m
Deal found 9/6![American Airlines logo]()
$779
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/2510:17 am -
2 stops11h 50m
Tue 9/296:00 am -
2 stops12h 42m
Deal found 9/6![American Airlines logo]()
$873
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Tue 9/296:00 am -
1 stop8h 50m
Deal found 9/6![American Airlines logo]()
$677
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Mon 9/282:51 pm -
1 stop8h 45m
Deal found 9/6![American Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/266:18 am -
1 stop6h 02m
Thu 10/16:00 am -
2 stops15h 48m
Deal found 9/6![American Airlines logo]()
$775
One-way flights from Seattle to SpringfieldSearch for one-way flight options from Seattle to Springfield. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Seattle to Springfield. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/236:15 am -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$472
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $577 (American Airlines) |
One-way from | $472 (American Airlines) |
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 7,457,451 searches. Data last updated September 10, 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
Cheapest round-trip
Quickest round-trip
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Wed 9/23
6:15 am-2:20 pm
1 stop6h 05m
Springfield Capital
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$472
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Tue 9/22
6:18 am-2:20 pm
1 stop6h 02m
Springfield Capital
Sat 9/26
2:51 pm-9:36 pm
1 stop8h 45m
$577
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Sat 9/26
6:18 am-2:20 pm
1 stop6h 02m
Springfield Capital
Wed 9/30
2:51 pm-9:36 pm
1 stop8h 45m
$677
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Thu 10/1
3:41 pm-12:07 am
1 stop6h 26m
Springfield Capital
Sun 10/4
2:51 pm-9:36 pm
1 stop8h 45m
$679
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Thu 9/24
3:41 pm-12:07 am
1 stop6h 26m
Springfield Capital
Mon 9/28
2:51 pm-9:36 pm
1 stop8h 45m
$679
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Fri 9/25
3:41 pm-12:07 am
1 stop6h 26m
Springfield Capital
Tue 9/29
2:51 pm-9:36 pm
1 stop8h 45m
$728
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Fri 9/25
11:22 am-12:07 am
2 stops10h 45m
Springfield Capital
Thu 10/1
6:00 am-7:48 pm
2 stops15h 48m
$873
SeattleSpringfield
SEA Seattle/Tacoma Intl - SPI Springfield Capital
SEASPI
Seattle/Tacoma Intl
Sat 9/26
7:51 am-12:07 am
2 stops14h 16m
Springfield Capital
Fri 10/2
6:00 am-3:17 pm
2 stops11h 17m
$873
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SEA-SPI
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.
Traveling to a place near Springfield?
Book flights to Springfield if you plan to visit one of these locationsLincoln
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