Cheap flight deals from Seattle to St. Louis

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Seattle to St. Louis?

We monitor flight fares to help you find the best deals effortlessly

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  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Seattle to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Seattle (SEA) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around PHP 18,926.

  • How long does it take to fly from Seattle (SEA) to St. Louis (STL) and what is the distance?

    It takes around 4 hours 26 minutes to fly from Seattle (SEA) to St. Louis (STL).

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.

  • What are the most popular airlines that fly from Seattle (SEA) to St. Louis (STL)?

How to find a cheap flight from Seattle to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Seattle to St. Louis

Cheapest one-way flight price PHP 4,342
Cheapest round-trip ticket price PHP 10,856
Off-season for travel March
Peak season for travel July
Flight distance 2,765.15 km
Average flight time 4 hours 26 minutes
Popular airline Alaska Airlines

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