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

Our cheapest airline available from Seattle to Springfield, Illinois is American Airlines. Our recent data shows that you can find tickets from as low as $515 on this airline.

What is the cheapest day to fly from Seattle to Springfield, Illinois?

Travelers seeking maximum savings on their Seattle to Springfield, Illinois flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Springfield, Illinois ranges from 1.8 - 4.5 inches per month. June is typically the wettest month, when rainfall can reach 4.5 in. January is typically the driest time to visit Springfield, Illinois when rainfall is around 1.8 in.

If weather is an important factor for your trip to Springfield, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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

Users have found that flying from Seattle to Springfield, Illinois on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest time of day to fly from SEA to SPI?

It’s optimal to fly from Seattle to Springfield, Illinois in the morning. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at noon.

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.

$464+ Flights from Seattle to Springfield, IL

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Cheap flight deals from Seattle to Springfield

Round-trip from	$515 (American Airlines)
One-way from	$464 (American Airlines)

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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Find 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 julio 29, 2025.

mié. 8/136:10 amSEA - SPI

1 stop7h 42mAmerican Airlines

dom. 8/176:24 pmSPI - SEA

1 stop7h 17mAmerican Airlines

Deal found 7/29

$515

Best flights from Seattle to Springfield
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 julio 29, 2025.

mié. 8/136:10 amSEA - SPI

1 stop7h 42mAmerican Airlines

dom. 8/176:24 pmSPI - SEA

1 stop7h 17mAmerican Airlines

Deal found 7/29

$515

Last-minute flights from Seattle to Springfield
Discover last-minute flight deals from Seattle to Springfield. Data last updated julio 29, 2025 and is based on user searches.

lun. 8/46:27 amSEA - SPI

2 stops9h 31mAmerican Airlines

vie. 8/86:24 pmSPI - SEA

1 stop16h 55mAmerican Airlines

Deal found 7/27

$882

mié. 8/136:10 amSEA - SPI

1 stop7h 42mAmerican Airlines

dom. 8/176:24 pmSPI - SEA

1 stop7h 17mAmerican Airlines

Deal found 7/29

$515

One-way flights from Seattle to Springfield
Search for one-way flight options from Seattle to Springfield. Find affordable one-way fares based on user searches. Data last updated julio 29, 2025.

lun. 8/411:32 pmSEA - SPI

2 stops11h 12mAmerican Airlines

Deal found 7/29

$464

Fly from

Fly to

Route

Depart

Return

Price

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

mié. 8/13

6:10 am-3:52 pm

1 stop7h 42m

Springfield Capital

dom. 8/17

6:24 pm-11:41 pm

1 stop7h 17m

$515

SeattleSpringfield

SEA - SPI

SEASPI

Seattle/Tacoma Intl

lun. 8/4

11:32 pm-12:44 pm

2 stops11h 12m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Springfield, Illinois (average of $338). Flying from Seattle to Springfield, Illinois in September is currently the most expensive (average of $486). 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 Springfield

See what other customers who have flown with American Airlines from Seattle to Springfield have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

LAX - ORD

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

LAX - ORD

Related info for your journey

What is the cheapest airline to fly from Seattle to Springfield, Illinois round-trip?
Our cheapest airline available from Seattle to Springfield, Illinois is American Airlines. Our recent data shows that you can find tickets from as low as $515 on this airline.
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.
What is the cheapest month to book a flight from Seattle to Springfield, Illinois?
Currently, March is the cheapest month in which you can book a flight from Seattle to Springfield, Illinois (average of $338). Flying from Seattle to Springfield, Illinois in September is currently the most expensive (average of $486). 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.

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Top airline flying from Seattle to Springfield

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$228	Average$518	FlexibilityNo cancel fee	On-time71%

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$464+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Springfield with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Springfield

Round-trip from

One-way from

Find flight deals from Seattle to Springfield

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 julio 29, 2025.

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 julio 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Springfield that are best for you.

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.

Cheapflights Insights

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

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

Reviews of airlines servicing Springfield

See what other customers who have flown with American Airlines from Seattle to Springfield have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

How can I find direct flights from Seattle to Springfield?

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

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

Traveling to a place near Springfield?

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Alternative routes for Seattle to Springfield

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Seattle to Springfield

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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 julio 29, 2025.