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$339+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — SEA
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap 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 September 14, 2025.

Round-trip from

$339
(American Airlines)

Popular in

January

Cheapest in

October

Average price

$438
From Springfield Capital to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Springfield to Seattle

Cheapest flights from Springfield to Seattle
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 September 14, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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 10/111:42 pmSPI - SEA
1 stop9h 04mAmerican Airlines
Sat 10/182:52 pmSEA - SPI
1 stop6h 26mAmerican Airlines
Deal found 9/13$339
This American Airlines deal was found by Cheapflights users on 9/13. 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 9/261:14 pmSPI - SEA
1 stop9h 36mAmerican Airlines
Sun 9/286:11 amSEA - SPI
2 stops9h 48mAmerican Airlines
Deal found 9/13$636
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/141:42 pmSPI - SEA
1 stop12h 45mAmerican Airlines
Fri 10/1711:24 pmSEA - SPI
2 stops11h 48mAmerican Airlines
Deal found 9/12$777

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 2,558,603 searches. Data last updated September 14, 2025.
Use the filters below to find and compare flights from Springfield to Seattle that are best for you.

Fly from

Springfield

Fly to

Seattle

Route

Depart

Return

Price

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Sat 10/11

1:42 pm-8:46 pm

1 stop9h 04m

Seattle/Tacoma Intl

Sat 10/18

2:52 pm-11:18 pm

1 stop6h 26m

$339

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Fri 9/26

1:14 pm-9:58 pm

2 stops10h 44m

Seattle/Tacoma Intl

Sun 9/28

6:11 am-5:59 pm

2 stops9h 48m

$714

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Tue 10/14

1:42 pm-12:27 am

1 stop12h 45m

Seattle/Tacoma Intl

Fri 10/17

11:24 pm-1:12 pm

2 stops11h 48m

$777

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Tue 3/10

6:00 am-10:59 pm

2 stops18h 59m

Seattle/Tacoma Intl

Wed 3/11

5:45 am-11:04 pm

2 stops15h 19m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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.
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.

Cheapflights Insights

Everything you need to know about your flight from Springfield to Seattle

What is the cheapest month to book a flight from Springfield, Illinois to Seattle?

Currently, January is the cheapest month in which you can book a flight from Springfield, Illinois to Seattle (average of $238). Flying from Springfield, Illinois to Seattle in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 September 14, 2025.
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.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Food

6.4

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Food

6.4

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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.

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

    There are many flights that can get you from Springfield, Illinois to Seattle in 9h 04m. Fly via American Airlines to get the fastest option. Airlines will cover a distance of 1698 mi.

  • What is the cheapest airline to fly from Springfield, Illinois to Seattle round-trip?

    Currently priced at $291, American Airlines will fly you from Springfield, Illinois to Seattle and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. American Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Springfield, Illinois to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Springfield, Illinois to Seattle (average of $238). Flying from Springfield, Illinois to Seattle in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
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Ocean Shores
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Leavenworth
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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 2,558,603 searches. Data last updated September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$291Average$485FlexibilityNo cancel feeOn-time71%

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