Cheap flights from St. Louis to Allentown from $309

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1 stop
Sat, Jun 28
St. Louis STLAllentown ABE

$309
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1 stop
Tue, Jun 24
St. Louis STLAllentown ABE

$441
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1 stop
Sat, Jun 28
St. Louis STLAllentown ABE

$451
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1 stop
Sat, Jun 28
St. Louis STLAllentown ABE

$451
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1 stop
Sat, Jun 28
St. Louis STLAllentown ABE

$473
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1 stop
Sat, Jun 28
St. Louis STLAllentown ABE

$493
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Prices updated:

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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$591
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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$599
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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$599
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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$616
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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$667
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1 stop
Mon, Jun 30 – Fri, Jul 4
St. Louis STLAllentown ABE

$674
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Prices updated:

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How much do flights to Allentown cost?

Key info about flying to Allentown

Depart from
St. Louis Lambert International
Arrive to
Lehigh Valley International
Average flights per week
44
Flight distance

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

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo

Weather in Allentown

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January2°C-5°C
February4°C-4°C
March8°C0°C
April15°C4°C
May20°C10°C
June25°C14°C
July29°C18°C
August27°C17°C
September24°C13°C
October17°C8°C
November10°C2°C
December5°C-1°C
Hottest Month
29°C
July
Coldest month
-5°C
January
Sunny days
258
days per year
Snow days
15
days per year

14 day forecast

Saturday
7 Jun
69%
29°C17°C
14 Jun
75%
20°C18°C
Sunday
8 Jun
83%
21°C15°C
15 Jun
87%
20°C14°C
Monday
9 Jun
89%
21°C14°C
16 Jun
22°C13°C
Tuesday
10 Jun
86%
26°C15°C
17 Jun
23°C12°C
Wednesday
11 Jun
62%
25°C13°C
18 Jun
88%
20°C16°C
Thursday
12 Jun
27°C13°C
19 Jun
81%
24°C18°C
Friday
13 Jun
79%
28°C17°C
20 Jun
73%
30°C19°C
The most popular airline for this route is United Airlines. St. Louis and Allentown have 44 direct flights per week.

Frequently asked questions

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What time do nonstop (direct) flights between St. Louis and Allentown depart?
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The nearest countries with flights to Allentown

Here is a list of countries people are flying from

Other destination countries from St. Louis

Here is a list of countries people are flying to
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