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Get United's best fares today on flights from Portland to Saint Louis from *

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FromToDatesFare TypePrice

Portland (PWM)

Saint Louis (STL)

Depart: 12/22/19

Return: 12/29/19

Roundtrip
from
$755*
Viewed:1dayago

Portland (PWM)

Saint Louis (STL)

Depart: 01/12/20

Return: 01/26/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/08/20

Return: 01/22/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/14/20

Return: 01/28/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/21/20

Return: 02/04/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/22/20

Return: 02/05/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/20/20

Return: 02/03/20

Roundtrip
from
$334*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/28/20

Return: 02/11/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/29/20

Return: 02/12/20

Roundtrip
from
$234*
Viewed:18hoursago

Portland (PWM)

Saint Louis (STL)

Depart: 01/24/20

Return: 02/07/20

Roundtrip
from
$276*
Viewed:18hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. 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 Saint Louis

Sunday overcast clouds
49°F 12/08/19
Monday moderate rain
57°F 12/09/19
Tuesday overcast clouds
33°F 12/10/19
Wednesday sky is clear
42°F 12/11/19
Thursday overcast clouds
42°F 12/12/19
Friday overcast clouds
44°F 12/13/19
Saturday overcast clouds
43°F 12/14/19
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