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

Flights starting at £101. Choose between United Airlines, American Airlines, or Alaska Airlines to find the best price.

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Key info about flying to St. Louis

Depart from
Seattle–Tacoma International
Arrive to
St. Louis Lambert International
Average flights per week
41
Flight distance
2747 km

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 chart.

AirlineMon 13.01Tue 14.01Wed 15.01Thu 16.01Fri 17.01Sat 18.01Sun 19.01
------111---1
Weekly flights: 4 totalDaily flights: 0.57 averageMost flights: Wednesday 1 flights
AirlineMon 20.01Tue 21.01Wed 22.01Thu 23.01Fri 24.01Sat 25.01Sun 26.01
11112---1
Weekly flights: 7 totalDaily flights: 1 averageMost flights: Friday 2 flights
AirlineMon 27.01Tue 28.01Wed 29.01Thu 30.01Fri 31.01Sat 01.02Sun 02.02
11112---1
Weekly flights: 7 totalDaily flights: 1 averageMost flights: Friday 2 flights
AirlineMon 03.02Tue 04.02Wed 05.02Thu 06.02Fri 07.02Sat 08.02Sun 09.02
11112---1
Weekly flights: 7 totalDaily flights: 1 averageMost flights: Friday 2 flights

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

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes
American AirlinesAALAANo
Alaska AirlinesASAASNo

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
262
days per year
Snow days
9
days per year

14 day forecast

Wednesday
15 Jan
0°C-12°C
22 Jan
3°C-9°C
Thursday
16 Jan
4°C-3°C
23 Jan
3°C-1°C
Friday
17 Jan
79%
3°C-3°C
24 Jan
-2°C-5°C
Saturday
18 Jan
76%
-1°C-5°C
25 Jan
7°C-6°C
Sunday
19 Jan
-7°C-11°C
26 Jan
11°C-1°C
Monday
20 Jan
-11°C-14°C
27 Jan
83%
4°C0°C
Tuesday
21 Jan
-8°C-13°C
28 Jan
11°C2°C

St. Louis travel tips

Walk the bohemian neighborhood of St. Louis – South Grand
Louis is one of the most multicultural cities in the USA
Taste Bosnian cuisine at St. Louis restaurants
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, American Airlines, and Alaska Airlines. Seattle and St. Louis have 41 direct flights per week.

Frequently asked questions

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