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 ($177 One Way, $218 Round Trip) found within past 7 days. Prices and availability subject to change. Additional terms may apply.

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, 98188
The price is $114 per night from May 22 to May 23
Stay at this hotel in SeaTac. Enjoy free WiFi, a free airport shuttle, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. ...
4.2/5 Excellent! (27 reviews)
"Beds were amazing. Very clean room. Place was very safe no issues. Only thing i can even think was bad. No refrigerator or microwave."

Reviewed on Nov 18, 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, 98188
The price is $104 per night from May 29 to May 30
Stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the overall value ...
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, 98188
The price is $117 per night from May 20 to May 21
Stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, breakfast, and a free airport shuttle. Our guests praise the restaurant and the clean rooms ...
2.7/5 (7 reviews)
"Did not explore area, so have no opinion."

Reviewed on Jan 5, 2022

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 6
Earliest Flight Departure Date May 26
Latest Flight Departure Date May 26
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.