Cheap flights from St. Louis to Seattle from $125

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Direct
Wed, Jul 30
St. Louis STLSeattle SEA

$125
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Direct
Wed, Jul 30
St. Louis STLSeattle SEA

$130
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Direct
Wed, Jul 30
St. Louis STLSeattle SEA

$130
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Direct
Wed, Jul 30
St. Louis STLSeattle SEA

$130
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Direct
Sat, Aug 2
St. Louis STLSeattle SEA

$188
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Direct
Sat, Aug 2
St. Louis STLSeattle SEA

$188
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Prices updated:

Direct
Mon, Jul 28 – Wed, Jul 30
St. Louis STLSeattle SEA

$319
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Direct
Tue, Jul 29 – Thu, Jul 31
St. Louis STLSeattle SEA

$331
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Direct
Mon, Jul 28 – Wed, Jul 30
St. Louis STLSeattle SEA

$334
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Direct
Mon, Jul 28 – Wed, Jul 30
St. Louis STLSeattle SEA

$334
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Direct
Tue, Jul 29 – Thu, Jul 31
St. Louis STLSeattle SEA

$338
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Direct
Tue, Jul 29 – Thu, Jul 31
St. Louis STLSeattle SEA

$338
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Prices updated:

Key info about flying to Seattle

Depart from
St. Louis Lambert International
Arrive to
Seattle–Tacoma International
Average flights per week
113
Flight distance
2747 km
Worth visiting
Lulu Island

Weekly direct flights

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

AirlineSun 29.06Mon 30.06Tue 01.07Wed 02.07Thu 03.07Fri 04.07Sat 05.07
------------123
------------123
Weekly flights: 12 totalDaily flights: 1.71 averageMost flights: Saturday 3 flights
AirlineSun 06.07Mon 07.07Tue 08.07Wed 09.07Thu 10.07Fri 11.07Sat 12.07
3333333
3333333
Weekly flights: 42 totalDaily flights: 6 averageMost flights: Sunday 3 flights
AirlineSun 13.07Mon 14.07Tue 15.07Wed 16.07Thu 17.07Fri 18.07Sat 19.07
3333333
---------------------
Weekly flights: 21 totalDaily flights: 3 averageMost flights: Sunday 3 flights
AirlineSun 20.07Mon 21.07Tue 22.07Wed 23.07Thu 24.07Fri 25.07Sat 26.07
3333333
---------------------
Weekly flights: 21 totalDaily flights: 3 averageMost flights: Sunday 3 flights

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

NameCarrier codeIATA CodePassport needed during booking
Alaska AirlinesASAASNo
United AirlinesUALUANo
Hawaiian AirlinesHALHANo

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C5°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C2°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
253
days per year
Snow days
5
days per year

14 day forecast

Saturday
5 Jul
21°C12°C
12 Jul
83%
24°C13°C
Sunday
6 Jul
23°C10°C
13 Jul
19°C11°C
Monday
7 Jul
27°C11°C
14 Jul
81%
22°C12°C
Tuesday
8 Jul
29°C12°C
15 Jul
86%
18°C11°C
Wednesday
9 Jul
88%
21°C15°C
16 Jul
22°C11°C
Thursday
10 Jul
25°C14°C
17 Jul
26°C9°C
Friday
11 Jul
29°C12°C
18 Jul
30°C13°C
Book your trip to arrive at Seattle–Tacoma International, Boeing Field, or Kenmore Air Harbor Seaplane Base. The distance between St. Louis and Seattle is 2747 km. The most popular airlines for this route are Alaska Airlines, United Airlines, and Hawaiian Airlines. St. Louis and Seattle have 113 direct flights per week.

Frequently asked questions

How long does it take to travel from St. Louis to Seattle?
What is the flight distance between St. Louis and Seattle?
What airlines offer nonstop (direct) flights between St. Louis and Seattle?
What are the most popular routes to and from St. Louis?
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Which airlines fly between St. Louis and Seattle?
When’s the best time to travel between St. Louis and Seattle?
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How many airports are there near St. Louis?
How many airports are there near Seattle?
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What time do flights between St. Louis and Seattle depart?
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Explore alternative trips

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