Cheap flights from Seattle to Lambert-St Louis Intl (SEA - STL)

Flight FAQs

From Seattle to Lambert-St Louis Intl

Are flight prices decreasing from Seattle to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Lambert-St Louis to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Seattle/Tacoma Intl to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Lambert-St Louis have flexible cancellations due to COVID-19?

Alaska Airlines, Delta, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Seattle to Lambert-St Louis Intl for under $100 on Cheapflights?

Yes, there are multiple flights from Seattle to Lambert-St Louis Intl for under $100. The cheapest flight booked recently is on Frontier for just $88, but on average you can expect to pay $139.

Are there nonstop flights from Seattle to Lambert-St Louis Intl for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Lambert-St Louis Intl under $200. A good price for a nonstop flight from Seattle to Lambert-St Louis Intl is less than $345.

Are there last-minute flights available from Seattle to Lambert-St Louis Intl for under $300?

There are currently 17+ open flights from Seattle to Lambert-St Louis Intl within the next 7 days for less than $300.

Does it rain more in Seattle or St Louis?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Seattle is roughly greater than that of St Louis. You can assume this to be the case over the next 18 days.

Is Seattle weather warmer or cooler than St Louis?

Temperatures around the 90 °F's can be experienced in July. The weather in St Louis is hotter than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to Lambert-St Louis Intl?

For as low as $117, Frontier can have you in Lambert-St Louis Intl from Seattle in 7h 13m.

What is the cheapest airline to fly from Seattle to Lambert-St Louis Intl round-trip?

According to our current data, Frontier ($88), offers the cheapest pricing from Seattle to Lambert-St Louis Intl. Frontier is currently priced 70% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Seattle to Lambert-St Louis Intl one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $50. Check flights for Alaska Airlines, as they currently have the next best price.