$503+ Cheap flights from Springfield, IL to Seattle (SPI - 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — SEA
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from Springfield to Seattle 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 Springfield to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Springfield to SeattleExplore the most affordable flight options available from Springfield to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from Springfield to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/62:59 pm -
1 stop7h 16m
Tue 10/136:12 am -
1 stop6h 17m
Deal found 8/24![American Airlines logo]()
$503
This American Airlines deal was found by Cheapflights users on 8/22. 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 10/222:59 pm -
1 stop7h 16m
Mon 11/26:12 am -
1 stop6h 24m
Deal found 8/22![American Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/82:51 pm -
1 stop8h 01m
Sat 9/126:18 am -
1 stop6h 02m
Deal found 8/24![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 8/25. 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 9/96:00 am -
1 stop9h 10m
Sun 9/133:41 pm -
1 stop6h 26m
Deal found 8/25![American Airlines logo]()
$628
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/32:51 pm -
1 stop8h 01m
Sun 9/61:50 pm -
1 stop8h 22m
Deal found 8/23![American Airlines logo]()
$779
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/36:08 am -
2 stops12h 32m
Mon 9/75:50 am -
1 stop6h 31m
Deal found 8/23![American Airlines logo]()
$826
Best flights from Springfield to SeattleDiscover carefully curated flight deals from Springfield to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from Springfield to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/62:59 pm -
1 stop7h 16m
Tue 10/136:12 am -
1 stop6h 17m
Deal found 8/24![American Airlines logo]()
$503
This American Airlines deal was found by Cheapflights users on 8/22. 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 10/222:59 pm -
1 stop7h 16m
Mon 11/26:12 am -
1 stop6h 24m
Deal found 8/22![American Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/82:51 pm -
1 stop8h 01m
Sat 9/126:18 am -
1 stop6h 02m
Deal found 8/24![American Airlines logo]()
$577
Last-minute flights from Springfield to SeattleDiscover last-minute flight deals from Springfield to Seattle. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Springfield to Seattle. Data last updated August 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/32:51 pm -
1 stop8h 01m
Sun 9/61:50 pm -
1 stop8h 22m
Deal found 8/23![American Airlines logo]()
$779
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/82:51 pm -
1 stop8h 01m
Sat 9/126:18 am -
1 stop6h 02m
Deal found 8/24![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 8/25. 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 9/96:00 am -
1 stop9h 10m
Sun 9/133:41 pm -
1 stop6h 26m
Deal found 8/25![American Airlines logo]()
$628
One-way flights from Springfield to SeattleSearch for one-way flight options from Springfield to Seattle. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from Springfield to Seattle. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/186:00 am -
1 stop8h 50m
Deal found 8/21![American Airlines logo]()
$524
Find flight deals from Springfield to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Springfield (SPI) 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 August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $503 (American Airlines) |
Popular in | January |
Cheapest in | March |
Average price | $604 |
Cheapflights Fare Finder
Customize your flight search to find flights from Springfield 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 August 26, 2026.
Use the filters below to find and compare flights from Springfield to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SpringfieldSeattle
SPI Springfield Capital - SEA Seattle/Tacoma Intl
SPISEA
Springfield Capital
Tue 10/6
2:59 pm-8:15 pm
1 stop7h 16m
Seattle/Tacoma Intl
Tue 10/13
6:12 am-2:29 pm
1 stop6h 17m
$503
SpringfieldSeattle
SPI Springfield Capital - SEA Seattle/Tacoma Intl
SPISEA
Springfield Capital
Thu 10/22
2:59 pm-8:15 pm
1 stop7h 16m
Seattle/Tacoma Intl
Mon 11/2
6:12 am-2:36 pm
1 stop6h 24m
$567
SpringfieldSeattle
SPI Springfield Capital - SEA Seattle/Tacoma Intl
SPISEA
Springfield Capital
Tue 9/8
2:51 pm-8:52 pm
1 stop8h 01m
Seattle/Tacoma Intl
Sat 9/12
6:18 am-2:20 pm
1 stop6h 02m
$577
Cheapest one-way
Quickest one-way
SpringfieldSeattle
SPI Springfield Capital - SEA Seattle/Tacoma Intl
SPISEA
Springfield Capital
Fri 9/18
6:00 am-12:50 pm
1 stop8h 50m
$524
Sorted by cheapest first
Compare providers for flights from Springfield to Seattle
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 Springfield to Seattle in August.
| 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 Springfield, Illinois-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Springfield, Illinois-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Springfield, Illinois-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Springfield, Illinois-Seattle 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 Springfield, Illinois-Seattle 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 Springfield to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Springfield with our price prediction graph.
SPI-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.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 26, 2026.
Read reviews from past customers who have flown American Airlines from Springfield to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Entertainment
6.8
Comfort
7.2
Crew
7.9
Food
6.4
Overall
7.1
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Boarding
7.5
Entertainment
6.8
Comfort
7.2
Crew
7.9
Food
6.4
Overall
7.1
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Related info for your journey
Find useful and relevant information for your journey from Springfield 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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Springfield and Seattle flights
Browse other Springfield and Seattle flight options. Last updated on August 26, 2026.
Other flights from Springfield
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Top airline flying from Springfield to Seattle
Discover the top airline that operate flights from Springfield to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$616 | FlexibilityNo cancel fee | On-time71% |