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$537+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — SEA
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
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Cheap 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 March 25, 2026.

This American Airlines deal was found by Cheapflights users on 3/20. 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 5/75:45 am
SPI
-
SEA
1 stop8h 44m
American Airlines
Mon 5/113:17 pm
SEA
-
SPI
1 stop6h 21m
American Airlines
Deal found 3/20$537
This American Airlines deal was found by Cheapflights users on 3/20. 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 4/45:00 am
SPI
-
SEA
2 stops10h 52m
American Airlines
Wed 4/81:19 pm
SEA
-
SPI
1 stop8h 19m
American Airlines
Deal found 3/20$572
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 8/156:38 pm
SPI
-
SEA
1 stop7h 12m
American Airlines
Sun 8/233:10 pm
SEA
-
SPI
1 stop5h 54m
American Airlines
Deal found 3/24$591
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 4/255:45 am
SPI
-
SEA
2 stops12h 06m
American Airlines
Wed 4/293:17 pm
SEA
-
SPI
1 stop6h 21m
American Airlines
Deal found 3/24$598
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 4/232:49 pm
SPI
-
SEA
1 stop9h 49m
American Airlines
Tue 4/283:17 pm
SEA
-
SPI
1 stop6h 21m
American Airlines
Deal found 3/24$615
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 4/242:49 pm
SPI
-
SEA
2 stops11h 55m
American Airlines
Sat 4/2511:41 am
SEA
-
SPI
2 stops9h 57m
American Airlines
Deal found 3/24$625
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 4/255:45 am
SPI
-
SEA
2 stops12h 06m
American Airlines
Mon 4/2710:29 pm
SEA
-
SPI
2 stops13h 50m
American Airlines
Deal found 3/24$626

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 March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$537
(American Airlines)

Popular in

January

Cheapest in

October

Average price

$338
Provider with most accurate pricing for Springfield Capital-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Springfield Capital-Seattle/Tacoma Intl flights.
Search Deals
From Springfield Capital to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 42% potential increase in price ($329 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 25, 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

Price

Cheapest round-trip

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Thu 5/7

5:45 am-12:29 pm

1 stop8h 44m

Seattle/Tacoma Intl

Mon 5/11

3:17 pm-11:38 pm

1 stop6h 21m

$537

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Sat 4/4

5:00 am-1:52 pm

2 stops10h 52m

Seattle/Tacoma Intl

Wed 4/8

1:19 pm-11:38 pm

1 stop8h 19m

$572
Quickest round-trip

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Sat 8/15

6:38 pm-11:50 pm

1 stop7h 12m

Seattle/Tacoma Intl

Sun 8/23

3:10 pm-11:04 pm

1 stop5h 54m

$591

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Sat 4/25

2:49 pm-12:44 am

2 stops11h 55m

Seattle/Tacoma Intl

Wed 4/29

11:55 pm-2:19 pm

2 stops12h 24m

$603

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Tue 4/21

2:49 pm-10:38 pm

1 stop9h 49m

Seattle/Tacoma Intl

Sat 4/25

1:19 pm-11:38 pm

1 stop8h 19m

$630

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Tue 4/21

2:49 pm-10:38 pm

1 stop9h 49m

Seattle/Tacoma Intl

Tue 4/28

10:00 am-11:38 pm

2 stops11h 38m

$635

SpringfieldSeattle

SPI - SEA

SPISEA

Springfield Capital

Fri 4/10

2:49 pm-10:38 pm

1 stop9h 49m

Seattle/Tacoma Intl

Sun 4/12

3:17 pm-11:38 pm

1 stop6h 21m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

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 March.
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 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.
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, March is the cheapest month in which you can book a flight from Springfield, Illinois to Seattle (average of $109). Flying from Springfield, Illinois to Seattle in August is currently the most expensive (average of $228). 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 March 25, 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.
American Airlines
7.1
Good
11,494 reviews

Comfort

7.2

Food

6.4

Entertainment

6.9

Overall

7.1

Boarding

7.5

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,494 reviews
American Airlines
7.1
Good
11,494 reviews

Comfort

7.2

Food

6.4

Entertainment

6.9

Overall

7.1

Boarding

7.5

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

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 8h 44m. 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 $234, 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 48% 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, March is the cheapest month in which you can book a flight from Springfield, Illinois to Seattle (average of $109). Flying from Springfield, Illinois to Seattle in August is currently the most expensive (average of $228). 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
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Snoqualmie
Ellensburg
Tukwila
Fife
Lakewood
Leavenworth
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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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 March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$234Average$467FlexibilityNo cancel feeOn-time71%

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