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

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Low fare calendar for flights from Philadelphia (PHL) to Saint Louis (STL)

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from
$545*
Viewed:21 hours ago
day-card-journey-type-option-rt
Return:02/03/20
21
from
$545*
Viewed:4 hours ago
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Return:02/04/20
22
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$545*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/05/20
23
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$545*
Viewed:4 hours ago
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Return:02/06/20
24
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$657*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/07/20
25
from
$545*
Viewed:4 hours ago
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Return:02/08/20
26
from
$657*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/09/20
27
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$452*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/10/20
28
from
$452*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/11/20
29
from
$452*
Viewed:4 hours ago
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Return:02/12/20
30
from
$452*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/13/20
31
from
$516*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/14/20
from
$452*
Viewed:4 hours ago
day-card-journey-type-option-rt
Return:02/15/20
Lowest PriceToday
*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.

Looking for additional flights from Philadelphia to Saint Louis?

FromToDatesFare TypePrice

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/05/20

Return: 02/19/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/06/20

Return: 02/20/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/10/20

Return: 02/24/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/19/20

Return: 03/04/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/12/20

Return: 02/26/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/04/20

Return: 02/18/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/04/20

Return: 02/11/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/03/20

Return: 02/10/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/08/20

Return: 02/15/20

Roundtrip
from
$305*
Viewed:4hoursago

Philadelphia (PHL)

Saint Louis (STL)

Depart: 02/03/20

Return: 02/17/20

Roundtrip
from
$305*
Viewed:4hoursago

*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

Monday broken clouds
23°F 01/20/20
Tuesday sky is clear
30°F 01/21/20
Wednesday light snow
36°F 01/22/20
Thursday light snow
35°F 01/23/20
Friday light snow
36°F 01/24/20
Saturday light snow
37°F 01/25/20
Sunday broken clouds
42°F 01/26/20
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