What airlines fly to Seattle?

Alaska Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Seattle from Springfield, Illinois according to our data. Alaska Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Springfield Capital to Seattle/Tacoma Intl?

American Airlines is the most popular carrier operating from Springfield Capital to Seattle/Tacoma Intl

When did momondo last update prices for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport?

As of September 2026, there is 1 operator available to choose from for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Springfield Capital Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Springfield Capital Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$534 Cheap Flights from Springfield, Illinois to Seattle in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Springfield, Illinois to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

6:12 am - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 17m1 stop Chicago O'Hare Intl

$555American Airlines

Fri, Mar 12 - Tue, Mar 16

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

3:20 pm - 12:09 amSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 49m1 stop Chicago O'Hare Intl

$587American Airlines

Fri, Feb 12 - Mon, Feb 15

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

6:12 am - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 17m1 stop Chicago O'Hare Intl

$643American Airlines

Mon, Oct 19 - Mon, Oct 26

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

6:12 am - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 17m1 stop Chicago O'Hare Intl

$648American Airlines

Wed, Oct 7 - Sun, Oct 11

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

10:32 am - 12:09 amSEA Seattle/Tacoma Intl-SPI Springfield Capital

11h 37m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$685American Airlines

Fri, Mar 12 - Tue, Mar 16

2:59 pm - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

7h 16m1 stop Chicago O'Hare Intl

3:14 pm - 12:09 amSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 55m1 stop Chicago O'Hare Intl

$699American Airlines

Thu, Oct 8 - Mon, Oct 12

6:02 am - 2:59 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

10h 57m2 stops Chicago O'Hare Intl Dallas/Fort Worth

6:12 am - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 17m1 stop Chicago O'Hare Intl

$740American Airlines

Fri, Feb 12 - Mon, Feb 15

6:02 am - 4:07 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

12h 05m2 stops Chicago O'Hare Intl Los Angeles

6:12 am - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 17m1 stop Chicago O'Hare Intl

$741American Airlines

Wed, Oct 7 - Sun, Oct 11

2:59 pm - 12:10 amSPI Springfield Capital-SEA Seattle/Tacoma Intl

11h 11m2 stops Chicago O'Hare Intl Dallas/Fort Worth

3:14 pm - 12:09 amSEA Seattle/Tacoma Intl-SPI Springfield Capital

6h 55m1 stop Chicago O'Hare Intl

$800American Airlines

Mon, Oct 19 - Mon, Oct 26

6:02 am - 8:15 pmSPI Springfield Capital-SEA Seattle/Tacoma Intl

16h 13m1 stop Chicago O'Hare Intl

11:59 pm - 2:29 pmSEA Seattle/Tacoma Intl-SPI Springfield Capital

12h 30m1 stop Chicago O'Hare Intl

$802American Airlines

Mon, Oct 26 - Fri, Oct 30

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American Airlines flights from Springfield, Illinois to Seattle

Our best American Airlines deals on Springfield, Illinois to Seattle flight tickets

American Airlines

Mar 12

SPI2:59 pmSpringfield Capital

7h 16m

1 stop

SEA8:15 pmSeattle/Tacoma Intl

Mar 16

SEA6:12 amSeattle/Tacoma Intl

6h 17m

1 stop

SPI2:29 pmSpringfield Capital

$555

American Airlines

Feb 12

SPI2:59 pmSpringfield Capital

7h 16m

1 stop

SEA8:15 pmSeattle/Tacoma Intl

Feb 15

SEA3:20 pmSeattle/Tacoma Intl

6h 49m

1 stop

SPI12:09 amSpringfield Capital

$587

American Airlines

Oct 19

SPI2:59 pmSpringfield Capital

7h 16m

1 stop

SEA8:15 pmSeattle/Tacoma Intl

Oct 26

SEA6:12 amSeattle/Tacoma Intl

6h 17m

1 stop

SPI2:29 pmSpringfield Capital

$643

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Fri 3/12

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Tue 3/16

6:12 am-2:29 pm

1 stop6h 17m

$555

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Fri 2/12

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Mon 2/15

3:20 pm-12:09 am

1 stop6h 49m

$587

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Mon 10/19

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Mon 10/26

6:12 am-2:29 pm

1 stop6h 17m

$643

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Wed 10/7

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Sun 10/11

6:12 am-2:29 pm

1 stop6h 17m

$648

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Fri 3/12

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Tue 3/16

10:32 am-12:09 am

2 stops11h 37m

$685

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Thu 10/8

2:59 pm-8:15 pm

1 stop7h 16m

Seattle/Tacoma Intl

Mon 10/12

3:14 pm-12:09 am

1 stop6h 55m

$699

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Fri 2/12

6:02 am-2:59 pm

2 stops10h 57m

Seattle/Tacoma Intl

Mon 2/15

6:12 am-2:29 pm

1 stop6h 17m

$740

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Wed 10/7

6:02 am-4:07 pm

2 stops12h 05m

Seattle/Tacoma Intl

Sun 10/11

6:12 am-2:29 pm

1 stop6h 17m

$741

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Mon 10/19

2:59 pm-12:10 am

2 stops11h 11m

Seattle/Tacoma Intl

Mon 10/26

3:14 pm-12:09 am

1 stop6h 55m

$800

SpringfieldSeattle

SPI Springfield Capital - SEA Seattle/Tacoma Intl

SPISEA

Springfield Capital

Mon 10/26

6:02 am-8:15 pm

1 stop16h 13m

Seattle/Tacoma Intl

Fri 10/30

11:59 pm-2:29 pm

1 stop12h 30m

$802

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Springfield, Illinois to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Seattle?

In general, September is the cheapest month to fly from Springfield, Illinois to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Seattle in September, then you should wait until February to fly from Springfield, Illinois, when ticket prices are also cheap, with an average price of $0.

When to book flights from Springfield, Illinois to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Springfield, Illinois to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Springfield, Illinois to Seattle (SPI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Springfield, Illinois to Seattle

Best Price Found	$534
Fastest flight time	8h 50m
Direct flights	None

The best one-way flight to Seattle from Springfield, Illinois in the past 72 hours is $534. The best round-trip flight deal from Springfield, Illinois to Seattle found on momondo in the last 72 hours is $555.

The fastest flight from Springfield, Illinois to Seattle takes 8h 50m

There are no direct flights from Springfield, Illinois to Seattle. There are no popular flight routes from Springfield, Illinois to Seattle.

Search flight deals

Frequently asked questions about flying from Springfield, Illinois to Seattle

How far is Springfield Capital to Seattle/Tacoma Intl by plane?
Springfield Capital and Seattle/Tacoma Intl are 1704.0 mi apart from one another. In terms of flight time, this usually takes a little over 8h 50m.
When did momondo last update prices for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport?
As of September 2026, there is 1 operator available to choose from for flights from Springfield Capital Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Springfield Capital Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Springfield Capital Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Springfield, Illinois to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Springfield, Illinois to Seattle is American Airlines (100% of total bookings).

Best airlines flying from Springfield, Illinois to Seattle

Compare and see reviews for airlines that fly from Springfield, Illinois to Seattle with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $248	Free Cancellation	Rating 7.0 12,098 reviews		Search American Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Kent

Redmond

Lakewood

Federal Way

Fife

Tukwila

Puyallup

Lynnwood

Cle Elum

Marysville

Lacey

Centralia

Kirkland

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Springfield to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Springfield.

Can I find flights from Springfield to Seattle with flexible booking policies on momondo?

All flight searches from Springfield to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Springfield to Seattle?

momondo helps you find the best flight between Springfield and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Springfield to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Springfield to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.