Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.

Cheap flights from St. Louis (STL) to Seattle (SEA)

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Lowest round trip fares by airline from St. Louis and Seattle

Cheapest prices ($105 One Way, $209 Round Trip) found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Wed, Jul 28
STL
St. Louis
SEA
Seattle
$105
Spirit Airlines
Sat, Nov 13
STL
St. Louis
SEA
Seattle
$119
Alaska Airlines
Sat, Jun 5
STL
St. Louis
SEA
Seattle
$129
Bargain Flight
Thu, Sep 23
STL
St. Louis
SEA
Seattle
$139
Alaska Airlines
Wed, Jun 2
STL
St. Louis
SEA
Seattle
$142
Delta
Tue, Jul 20 - Tue, Jul 27
STL
St. Louis
SEA
Seattle
$209
Spirit Airlines
Wed, Jul 14 - Wed, Jul 21
STL
St. Louis
SEA
Seattle
$233
Spirit Airlines
Sat, Sep 11 - Sat, Sep 18
STL
St. Louis
SEA
Seattle
$237
Alaska Airlines
Wed, Jul 14 - Mon, Jul 19
STL
St. Louis
SEA
Seattle
$257
Spirit Airlines
Wed, Aug 11 - Wed, Aug 25
STL
St. Louis
SEA
Seattle
$293
Bargain Flight

Great Deals On Cheap Hotels in Seattle

Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard, SeaTac, WA
The price is $70 per night from May 16 to May 16
Situated near the airport, this hotel is 1.5 mi (2.4 km) from Silver Dollar Casino and 2.8 mi (4.6 km) from Westfield Southcenter Mall. Angle Lake Park and North ...
4.1/5Very Good! (28 reviews)
"Employees were very helpful and friendly."

Reviewed on May 9, 2021

Red Roof Inn Seattle Airport - SEATAC
Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd, SeaTac, WA
The price is $56 per night from May 18 to May 18
Situated near the airport, this hotel is within a 10-minute walk of Silver Dollar Casino and Angle Lake Park. Valley Ridge Park is 1.3 mi (2.2 km) away. Angle ...
3/5 (2 reviews)
"Our plane had a mechanical failure and the flight was postponed for 2 days. Never got to stay at this place but the management would not provide us with a refund. If was a 7:00 PM flight so we were less then 24 hrs out but the circumstances were completely out of our control and no other flights ..."

Reviewed on Jun 24, 2018

Days Inn by Wyndham Seatac Airport
Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd, SeaTac, WA
The price is $70 per night from May 14 to May 14
Situated near the airport, this hotel is 1.6 mi (2.6 km) from Silver Dollar Casino and 2.7 mi (4.4 km) from Westfield Southcenter Mall. Angle Lake Park and North ...
3.1/5 (9 reviews)
"Strands of hair on the bed. Had to brush off grains of dirt. Wondering if the bedding was even changed. You get what you pay for. Staff are very friendly and helpful but cleanliness is very disappointing."

Reviewed on Apr 10, 2021

Ramada by Wyndham SeaTac Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Fly From St. Louis to Seattle

Origin St. Louis
Destination Seattle
Number of Daily Flights 4
Earliest Flight Departure Date May 20
Latest Flight Departure Date May 20
Popular Airlines Alaska Airlines

Cheap flights from St Louis to Seattle

The easiest way to explore everything in Seattle, including the Seattle Center, the University of Washington campus and Pioneer Square, is with a car. The Seattle-Tacoma International Airport (SEA) is the best place to find an affordable rental car. After picking one up, you might want to drive out to Mount Rainier National Park for the stunning views, some fresh air and the chance to stretch your legs. When you've shaken off the jet lag, head for the Seattle Aquarium, located right on the waterfront.

Key Facts

Although Seattle is known for its gloomy days and coffee association, there's also a thriving music scene, numerous farmers markets with organic produce, and a variety of restaurants serving authentic international cuisine.

Travelers can check out the history of the Seattle music scene at the Experience Music Project Museum. Let your imagination run wild at the Chihuly Garden and Glass Museum where massive art installations are created from blown glass.

Hints and Tips

It takes about six hours to reach Seattle from the Lambert-St. Louis International Airport (STL). SeaTac Airport offers many travels the chance to connect to other flights and has several terminals, on top of a large central area with food and shopping options.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.