Cheap flights from St. Louis to Seattle from $69
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Seattle departing on 5/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Seattle by changing tabs
Find the cheapest one-way flights from St. Louis to Seattle
If you're looking for one-way flights from St. Louis to Seattle, view some of our deals below provided by Alaska Airlines, American Airlines and Frontier
Search last-minute flights to Seattle from St. Louis
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Best airlines flying from St. Louis to Seattle
Compare and see reviews for airlines that fly from St. Louis to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $143 | Free Cancellation | Rating 6.3 4,163 reviews | |||
| PriceFrom $155 | Free Cancellation | Rating 6.4 8,777 reviews | |||
| PriceFrom $160 | Free Cancellation | Rating 8.0 11,094 reviews | |||
| PriceFrom $167 | Free Cancellation | Rating 8.0 9,109 reviews | |||
| PriceFrom $169 | Free Cancellation | Rating 7.2 669 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 7.3 14,955 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 7.4 11,325 reviews |
Alaska Airlines Flights From St. Louis to Seattle
Alaska Airlines operates around 8 flights from St. Louis to Seattle every week. The average price of these flights found in the last 72 hours has been $396, but momondo users have found Alaska Airlines deals from St. Louis to Seattle from as low as $167 round-trip. Alaska Airlines has been scored 8.0/10 in 9,109 reviews.
American Airlines Flights From St. Louis to Seattle
Another popular option for St. Louis to Seattle flights is American Airlines (7.3/10, 14,955 ratings). American Airlines flies from St. Louis to Seattle around 14 times per week, with deals starting from $176 round-trip and rising to an average price of around $498.
Frontier flights from St. Louis to Seattle
Our best Frontier deals on St. Louis to Seattle flight tickets
Alaska Airlines flights from St. Louis to Seattle
Our best Alaska Airlines deals on St. Louis to Seattle flight tickets
How to get the cheapest flight ticket from St. Louis 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
What is the cheapest month to fly from St. Louis to Seattle?
November. The cheapest time of year to fly to Seattle from St. Louis is November. Most expensive is July
What is the cheapest day to depart St. Louis for Seattle?
Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Saturday
When is the cheapest time to fly from St. Louis to Seattle?
In the afternoon. St. Louis to Seattle flights are approximately 25% more expensive in the evening than in the afternoon
What is the cheapest airline that flies to Seattle from St. Louis?
Frontier. Delta, Frontier, and Spirit Airlines are the most popular carriers operating from St. Louis to Seattle
What is the cheapest St. Louis to Seattle flight route?
Lambert-St Louis - Seattle/Tacoma Intl. Fly from Lambert-St Louis to Seattle/Tacoma Intl for the best St. Louis - Seattle flight prices
How far in advance should you book St. Louis to Seattle flights?
9 days before. The cheapest time to buy a flight from St. Louis to Seattle is approximately 9 days to departure
How many flights depart from St. Louis to Seattle on average per day?
As of April 2024, 6 flights take off from St. Louis and land in Seattle each day. The most common flight departure time for this route is 6:00AM, with 64% of daily flights taking off at noon.
How many flights depart from St. Louis to Seattle on average per week?
The number of flights available between St. Louis and Seattle is 42 per week as of April 2024. The most frequent departure day is Monday, with 19% of weekly flights leaving on this day.
Can stopping save me money on St. Louis to Seattle flights?
You could potentially save up to 56% on your flight if you consider stops on a St. Louis to Seattle flight.
Cheap St. Louis to Seattle (STL to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Seattle
Best Price Found | $69 |
|---|---|
Fastest flight time | 4h 14m |
Direct flights | Every day |
Airports in Seattle | 1 airport |
How far is Lambert-St Louis to Seattle/Tacoma Intl by plane?
Lambert-St Louis and Seattle/Tacoma Intl are 1719.6 mi apart from one another. By plane, this route typically takes 4h 19m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport?
As of April 2024, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Seattle?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Seattle. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Seattle?
Once all potential St. Louis to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Seattle right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.