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United flights from Boston to Saint Louis starting at

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Low fare calendar for flights from Boston (BOS) to Saint Louis (STL)

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$306 Price subject to changes
Viewed:7 hours ago
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2
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$301 Price subject to changes
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$301 Price subject to changes
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$251 Price subject to changes
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$251 Price subject to changes
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6
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$256 Price subject to changes
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$251 Price subject to changes
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8
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$256 Price subject to changes
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9
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$251 Price subject to changes
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$251 Price subject to changes
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11
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$246 Price subject to changes
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12
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$246 Price subject to changes
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13
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$286 Price subject to changes
Viewed:7 hours ago
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14
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$246 Price subject to changes
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$286 Price subject to changes
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$246 Price subject to changes
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$246 Price subject to changes
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18
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$246 Price subject to changes
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$246 Price subject to changes
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20
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$256 Price subject to changes
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21
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$246 Price subject to changes
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22
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$256 Price subject to changes
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23
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$246 Price subject to changes
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24
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$246 Price subject to changes
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25
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$433 Price subject to changes
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26
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$246 Price subject to changes
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27
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$256 Price subject to changes
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28
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$432 Price subject to changes
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$446 Price subject to changes
Viewed:18 hours ago
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$246 Price subject to changes
Viewed:7 hours ago
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$246 Price subject to changes
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$246 Price subject to changes
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$256 Price subject to changes
Viewed:18 hours ago
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$246 Price subject to changes
Viewed:7 hours ago
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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 Boston (BOS) to Saint Louis (STL) flights

FromToDatesFare TypePrice

Boston (BOS)

Saint Louis (STL)

Depart: 01/11/21

Return: 01/18/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/12/21

Return: 01/19/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/13/21

Return: 01/20/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/16/21

Return: 01/23/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/19/21

Return: 01/26/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/11/21

Return: 01/25/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/12/21

Return: 01/26/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/13/21

Return: 01/27/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/16/21

Return: 01/30/21

Roundtrip
from
$246*
Viewed:18hoursago

Boston (BOS)

Saint Louis (STL)

Depart: 01/19/21

Return: 02/02/21

Roundtrip
from
$246*
Viewed:18hoursago

*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 Saint Louis

Wednesday moderate rain
52°F 10/21/20
Thursday sky is clear
80°F 10/22/20
Friday light rain
55°F 10/23/20
Saturday overcast clouds
50°F 10/24/20
Sunday light rain
50°F 10/25/20
Monday heavy intensity rain
47°F 10/26/20
Tuesday light rain
37°F 10/27/20
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