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UA
United Airlines
Round Trip
•
Economy
LIR
Daniel Oduber Quirós International Airport
Liberia, Costa Rica
STL
Lambert-Saint Louis International Airport
St. Louis, United States
$599 USD
-50%
$301
USD
Verified Sep 20, 2025 at 3:49 PM
October 2025
Today
Mon
Tue
Wed
Thu
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Sat
Sun
29
30
$314
1
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$697
8
$1,019
9
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12
$532
13
14
$768
15
$489
16
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$650
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1
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Limited Availability
16% of dates checked are available within 10% of the lowest price
Monday, October 6th, 2025
0 round-trip options
No flight details available for this date.
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