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Amazing Delta SEA to STL Flight Deals

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were $214 round trip and $123 one way. Prices and availability subject to change. Additional terms may apply.

STL From SEA Economy Coach Packages on Similar Airlines


FAQs about Delta Air Lines Flights from SEA to STL

What terminal is Delta Air Lines at Sea-Tac Airport?

Before you jet off from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) with Delta Air Lines, it might be a good idea to get in touch with the airline to find out your terminal information. While your boarding pass should contain some of the relevant details, there's no guarantee.

Are there Delta Air Lines non-stop flights from SEA to STL?

Delta Air Lines doesn't have direct flights between Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) and St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), so plan to make at least one stopover. If you've got time between flights, browse the airport shops while you wait for your connection.

How long is a Delta Air Lines flight from SEA to STL?

As it will take approximately 6 hours and 48 minutes for your Delta Air Lines flight to get from SEA to STL, think about tossing some entertaining travel games in your carry-on bag. You never know — the person sitting beside you might welcome the chance to play to break up the journey.

How many direct and indirect flights does Delta Air Lines fly from SEA to STL?

You can select from around 6 Delta Air Lines flights each day from SEA to STL.

Flying Tips & Tricks How do I find my flight number?
  • Have a look at your inbox after you've made your booking — there ought to be an itinerary for your flight. The flight number will be displayed on the document's first page.
How early can you check bags for a flight?
  • Scheduled check-in times vary from airline to airline. However, with international flights you can usually drop your luggage approximately three hours before departure. We suggest arriving at the airport with plenty of time to spare as check-in closes around an hour before the plane leaves. If you're on a domestic flight, check-in and luggage drop open a couple of hours before departure and close 45 minutes before takeoff.

*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.