$63+ Cheap flights from St. Louis to Seattle (STL - SEA)

Booking a flight from Lambert-St Louis (STL) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from St. Louis to Seattle. On a typical day, there are 3 flights from Lambert-St Louis to Seattle/Tacoma Intl, all of which are around 4h 26m for a nonstop flight. You can also purchase a plane ticket from 7 airlines when you book a flight from Lambert-St Louis to Seattle.

Yes, there are multiple flights from St. Louis to Seattle for under $200. The cheapest flight booked recently is on Frontier for just $113, but on average you can expect to pay $233.

Cheapflights has at least 2 direct flights from St. Louis to Seattle under $300. A good price for a nonstop flight from St. Louis to Seattle is less than $282.

There are currently 8+ open flights from St. Louis to Seattle within the next 7 days for less than $300.

Nonstop flights can be found on the following days: Monday, Tuesday, Thursday, Friday, Saturday.

Within the past month, 50 users have taken a look at flights from Lambert-St Louis to Seattle/Tacoma Intl.

Per day, 12 flights depart from St. Louis to Seattle on average.
Morning (6am - Noon) - 75% of flight departures
Afternoon (Noon - 6pm) - 25% of flight departures

Airlines like Frontier, American Airlines, and Delta fly from St. Louis to Seattle in about 7h 40m. The time it takes to get you to your destination can typically vary by up to 9h 01m. There are 1714 mi between St. Louis and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

Currently priced at $113, Frontier will fly you from St. Louis to Seattle and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $196 and $206, respectively. You may be able to fly from St. Louis to Seattle for 67% less than the average price by searching for these airlines.

The cheapest airlines for a one-way flight from St. Louis to Seattle are Frontier ($63), Delta ($98), and American Airlines ($108).

The top 3 most reliable airlines when flying from St. Louis to Seattle are Hawaiian Airlines (100%), Air Tahiti Nui (95%) and Japan Airlines (92%).

Looking for the cheapest flight from St. Louis to Seattle? While on average our users pay $1,289, our data indicates the cheapest price to be $118. The most popular route (Lambert-St Louis - Seattle/Tacoma Intl), is priced around $138.

STL stands for Lambert-St Louis Airport, while SEA stands for Seattle/Tacoma Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

St. Louis to Seattle flights have a layover in Salt Lake City most of the time.

Most Salt Lake City visitors opt to spend their time experiencing Temple Square, Abravanel Hall, and Salt Lake Temple. Temple Square, Abravanel Hall, and Salt Lake Temple can be accessed by traveling approximately 4.7 mi, 4.7 mi, and 4.8 mi, respectively from Salt Lake City. Travelers in need of a car in Salt Lake City can rent one for about $57 per day.

The least popular layover on flights from St. Louis to Seattle is Denver.

The amount of baggage you can bring on your St. Louis to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter St. Louis to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on St. Louis to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Seattle.

Yes. Cheapflights offers flight deals from St. Louis to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from St. Louis to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on St. Louis to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The St. Louis to Seattle flight deals you see on this page were last updated on 10/31.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Seattle (average of $238). Flying from St. Louis to Seattle in July is currently the most expensive (average of $411). 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.