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Fares from $99 One Way, $197 Round Trip from St. Louis to Seattle

Prices starting at $197 for return flights and $99 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

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More About Flying To Seattle from St. Louis

Flights from St. Louis to Seattle - Frequently Asked Questions

Are there non-stop flights from St. Louis to Seattle?

There sure are, which is terrific news if you're not a massive fan of changing planes en route. Alaska Airlines and Southwest Airlines offer direct flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.).

What is the shortest flight from St. Louis to Seattle?

Traveling from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) takes at least 4 hours and 20 minutes. Indulge in a wine and read a few magazines — this is a great opportunity to relax.

What airlines have the most flights from St. Louis to Seattle?

Alaska Airlines (AS) offers 48 flights each month between St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Your next grand adventure is just clicks away. Also investigate the great airfares from Southwest Airlines (WN). Offering 32 flights each month between St. Louis and Seattle, they'll ensure your journey is just as delightful as the destination.

Route Information for Flights from St. Louis to Seattle

Origin Airport IATA CodeSTL
Destination Airport IATA CodeSEA
Distance1705 mi
Direct Flight AirlinesAlaska Airlines
Earliest Flight Arrival8:49PM UTC
Latest Flight Arrival8:49PM UTC

Flights Review

Jul 27, 2019

My dad is dying. I made the reservation a few months prior to the flight, when he was in relatively good health, for a 90 year old. In the meantime, a few weeks ago, he fell and is really deteriorating quickly. I called Alaska Airlines two days before my flight to see if I could change my ticket to come even one day earlier and I was not allowed to change it. Last year I had the same problem with my mom, but I was using American Airlines. They were so kind and compassionate and allowed me to change my ticket. In her case, I arrived in the morning and she died that night, I barely made it in time. I wish Alaska Airlines would make exceptions for death and dying, regardless of the ticket (or insurance) passengers purchase. I would even be able to send documentation of my dad’s health from the hospital to prove his health situation. Anyway, if anyone actually reads this, I hope you might change your policy. My dad is still alive but next time I come to Seattle, I’ll probably go with American because they were flexible with my situation. Thanks.

Dec 5, 2018

Awesome trip!

Oct 22, 2018

Luggage was left behind and wasn't received until 7:30pm the following day. However, U was given $50 off my next flight.

Flying from St Louis to Seattle

Lambert-St. Louis International Airport

Planning a trip on a budget can often be a challenge. allows travelers to search many different airlines at once to find cheap flights from St. Louis, Missouri. The Lambert-St. Louis International Airport is located 15 miles northwest of downtown on Airflight Drive. Thirteen airlines provide services to the airport, including US Airways, United Airlines, Delta and American Airlines.

Parking at the Airport

Parking at the Lambert-St. Louis International Airport is provided by Super Park. Both long-term and short-term parking are available. Shuttle services are available 24 hours a day to and from the parking areas to the main terminal. Super Park ensures the closest parking available, and in many cases, parking is within walking distance to the terminal. Fees are charged by the hour or by the day with discounts for weekly parking.

Transportation to the Airport

Go Best Express Airport Shuttle offers shared shuttle rides to and from all downtown hotels and businesses in St. Louis. Shuttles are available every 15 to 30 minutes all day, and reservations are recommended. The MetroLink has 37 stations that provide service to and from the airport. The Link is available for a flat fee. The Metropolitan Taxicab Commission services the Lambert-St. Louis International Airport, and it provides metered transportation in and around St. Louis. Exact fares depend on the destination, and taxis require an additional $3 airport fee. Limos are available for rent by the day or by the hour, and many local hotels provide complimentary shuttles to and from the airport for their guests. can assist travelers in locating cheap car rental agencies in the area.

Dining Options at Lambert-St. Louis International Airport

The Lambert-St. Louis International Airport offers many excellent food options for those who want to eat before their flight. The Great American Bagel Company offers many bagel varieties, as well as fresh coffee and juice. Starbucks is available at the Lambert's East Terminal and has a selection of blended coffees and bakery items. For travelers who prefer a sit-down meal before reaching the airport, Half and Half is located near the airport in St. Louis and offers eggs, toast, bacon and fresh donuts. For individuals looking for travel deals, can provide assistance in locating cheap flights from St. Louis.

Seattle Airport Information

On your next trip to the Pacific Northwest, use Orbitz to find low-cost domestic and international flights to Seattle. The primary airport is the Seattle-Tacoma International Airport, more commonly known as Sea-Tac, located roughly 15 miles south of downtown Seattle. The Boeing Field-King County International Airport is less than 10 miles south of the city, but flights into this airport are generally more limited and a bit more expensive.

Ground Transportation in Seattle

You will have several public transportation options once you land in Seattle, including Link Light Rail and King County Metro Transit. There are also public taxis, share-a-ride shuttles and private car services ready to bring you to your final destination. Expect to pay a fare of between $35 and $45 from Sea-Tac into downtown Seattle, and roughly half of that from the Boeing Field airport. Use to plan your trip, and you will be able to either rent a car or choose a hotel that has free shuttle service to and from the airport.

Seattle Weather Information

Seattle has a mild climate, with winter temperatures usually ranging from the mid-30s to the mid-40s and summer temperatures that rarely go above the mid-70s. November and December usually have a fair amount of rainfall, but the rest of the year is fairly dry. Because cool nights occur year round, plan a wardrobe that you can layer to accommodate the fluctuating temperatures.

What to Do in Seattle

Visitors to Seattle have no shortage of things to see and do. Some of the most famous landmarks include the Space Needle, the site of the original Starbucks in Pike Place Market and Bill Gates' house on Lake Washington. There are also plenty of parks, museums, theaters, shops and restaurants in and around the city. Enjoy your stay, and the next time you need discount flights to Seattle, be sure to use

^Savings based on all package bookings with Flight + Hotel made on from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.