Skip to content

United flights from Saint Louis to Seattle starting at

Select journey type

Enter to select travel class and passengers

Book with confidence with United

Low fare calendar for flights from Saint Louis (STL) to Seattle (SEA)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1
2
from
$412 Price subject to changes
Viewed:4 hours ago
Return:
3
from
$405 Price subject to changes
Viewed:4 hours ago
Return:
4
from
$447 Price subject to changes
Viewed:4 hours ago
Return:
5
from
$361 Price subject to changes
Viewed:4 hours ago
Return:
6
from
$349 Price subject to changes
Viewed:4 hours ago
Return:
7
from
$349 Price subject to changes
Viewed:4 hours ago
Return:
8
from
$370 Price subject to changes
Viewed:4 hours ago
Return:
9
from
$325 Price subject to changes
Viewed:4 hours ago
Return:
10
from
$293 Price subject to changes
Viewed:4 hours ago
Return:
11
from
$325 Price subject to changes
Viewed:4 hours ago
Return:
12
from
$352 Price subject to changes
Viewed:4 hours ago
Return:
13
from
$293 Price subject to changes
Viewed:4 hours ago
Return:
14
from
$293 Price subject to changes
Viewed:4 hours ago
Return:
15
from
$229 Price subject to changes
Viewed:4 hours ago
Return:
16
from
$239 Price subject to changes
Viewed:4 hours ago
Return:
17
from
$217 Price subject to changes
Viewed:4 hours ago
Return:
18
from
$239 Price subject to changes
Viewed:4 hours ago
Return:
19
from
$229 Price subject to changes
Viewed:4 hours ago
Return:
20
from
$217 Price subject to changes
Viewed:4 hours ago
Return:
21
from
$217 Price subject to changes
Viewed:4 hours ago
Return:
22
from
$265 Price subject to changes
Viewed:4 hours ago
Return:
23
from
$212 Price subject to changes
Viewed:4 hours ago
Return:
24
from
$192 Price subject to changes
Viewed:4 hours ago
Return:
25
from
$212 Price subject to changes
Viewed:4 hours ago
Return:
26
from
$192 Price subject to changes
Viewed:a day ago
Return:
27
from
$192 Price subject to changes
Viewed:4 hours ago
Return:
28
from
$192 Price subject to changes
Viewed:4 hours ago
Return:
29
from
$192 Price subject to changes
Viewed:4 hours ago
Return:
30
from
$212 Price subject to changes
Viewed:4 hours ago
Return:
31
from
$192 Price subject to changes
Viewed:4 hours ago
Return:
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

More United deals on Saint Louis (STL) to Seattle (SEA) flights

FromToDatesFare TypePrice

Saint Louis (STL)

Seattle (SEA)

Depart: 11/02/20

Return: 11/09/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/03/20

Return: 11/10/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/04/20

Return: 11/11/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/05/20

Return: 11/12/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/07/20

Return: 11/14/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/09/20

Return: 11/16/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/10/20

Return: 11/17/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/11/20

Return: 11/18/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/12/20

Return: 11/19/20

Roundtrip
from
$192*
Viewed:3hoursago

Saint Louis (STL)

Seattle (SEA)

Depart: 11/16/20

Return: 11/23/20

Roundtrip
from
$192*
Viewed:3hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Seattle

Thursday overcast clouds
67°F 10/01/20
Friday sky is clear
71°F 10/02/20
Saturday sky is clear
71°F 10/03/20
Sunday overcast clouds
59°F 10/04/20
Monday sky is clear
64°F 10/05/20
Tuesday sky is clear
64°F 10/06/20
Wednesday overcast clouds
67°F 10/07/20
Powered by: OpenWeatherMap.org