Cheap flights from Seattle, WA to St. Louis, MO

Flights starting at £98. Choose between United Airlines, Alaska Airlines, or Sun Country Airlines to find the best price.

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Tips to know when travelling to St. Louis

Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to St. Louis. The distance between Seattle and St. Louis is 2747 km. The most popular airlines for this route are United Airlines, Alaska Airlines, and Sun Country Airlines. Seattle and St. Louis have 42 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Seattle to St. Louis in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Mon 29.04 - Sun 05.05

AirlineMon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05Sun 05.05
1222222

Weekly direct flights for Mon 06.05 - Sun 12.05

AirlineMon 06.05Tue 07.05Wed 08.05Thu 09.05Fri 10.05Sat 11.05Sun 12.05
2222222

Weekly direct flights for Mon 13.05 - Sun 19.05

AirlineMon 13.05Tue 14.05Wed 15.05Thu 16.05Fri 17.05Sat 18.05Sun 19.05
2223333

Weekly direct flights for Mon 20.05 - Sun 26.05

AirlineMon 20.05Tue 21.05Wed 22.05Thu 23.05Fri 24.05Sat 25.05Sun 26.05
3333233

Check-in for a flight from Seattle to St. Louis

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Sun Country AirlinesSCXSYYesNo

St. Louis travel tips

1) Walk the bohemian neighborhood of St. Louis – South Grand
2) Louis is one of the most multicultural cities in the USA
3) Taste Bosnian cuisine at St. Louis restaurants

Weather in St. Louis

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January3°C-3°C
February6°C-2°C
March13°C3°C
April18°C8°C
May24°C14°C
June29°C19°C
July31°C21°C
August30°C20°C
September27°C16°C
October20°C10°C
November12°C3°C
December7°C0°C
Hottest Month
31°C
July
Coldest month
-3°C
January
Sunny days
261
days per year
Snow days
9
days per year

14 day forecast

Thursday
2 May
83%
29°C17°C
9 May
21°C12°C
Friday
3 May
94%
23°C16°C
10 May
83%
14°C10°C
Saturday
4 May
80%
27°C16°C
11 May
18°C8°C
Sunday
5 May
84%
21°C13°C
12 May
22°C10°C
Monday
6 May
86%
28°C17°C
13 May
83%
24°C14°C
Tuesday
7 May
87%
26°C18°C
14 May
87%
26°C15°C
Wednesday
8 May
26°C15°C
15 May
18°C10°C

Frequently asked questions

How long does it take to travel from Seattle to St. Louis?
What is the flight distance between Seattle and St. Louis?
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