
Keep the following information in mind while searching for St. Louis to Guam flight deals. Data was last updated November 10, 2026.
Round-trip from | $1,360 (Alaska Airlines) |
|---|---|
One-way from | $1,137 (Kiwi.com) |
Fly from
Fly to
Route
Depart
Return
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Mon 1/4
6:00 am-1:10 am
2 stops27h 10m
Tamuning Guam Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Sun 2/28
8:40 am-3:45 pm
2 stops63h 05m
Tamuning Guam Intl
Thu 3/4
7:45 am-12:52 pm
2 stops21h 07m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Tue 1/5
4:06 pm-2:45 pm
2 stops54h 39m
Tamuning Guam Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Mon 1/4
7:18 am-7:00 pm
3 stops43h 42m
Tamuning Guam Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Sun 1/3
8:05 am-7:00 pm
3 stops42h 55m
Tamuning Guam Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Mon 4/12
6:15 am-6:05 pm
2 stops20h 50m
Tamuning Guam Intl
Tue 4/27
7:10 am-8:59 pm
2 stops28h 49m
St. LouisTamuning
STL Lambert-St Louis - GUM Tamuning Guam Intl
STLGUM
Lambert-St Louis
Sat 1/30
8:30 am-7:00 pm
2 stops66h 30m
Tamuning Guam Intl
Sat 2/13
7:45 am-8:54 pm
2 stops29h 09m
Everything you need to know about your flight from St. Louis to Guam
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