Users have found that booking a flight from St. Louis to Portugal at least 41 days early can save you up to 60% on average compared to booking a flight this week. If booking 41 days before your flight isn’t an option for you, users have found flights from St. Louis to Portugal for as little as $729 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $729 for flights departing within the next 3 days.
Flights from St. Louis to Portugal lean towards being more expensive in May. Prices are generally better when you fly from St. Louis to Portugal in January, with the cheapest ticket starting at $457.
When flying from St. Louis to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$901 - $1,661
Route
Depart
Return
Price
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 9/10
2 stops30h 51m
Porto
Sun 9/15
3 stops41h 19m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 10/1
2 stops19h 25m
Porto
Tue 10/15
2 stops19h 46m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 10/1
2 stops18h 55m
Porto
Tue 10/15
1 stop31h 15m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Fri 8/2
2 stops16h 00m
Lisbon Humberto Delgado
Fri 8/9
2 stops33h 56m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 9/10
2 stops23h 32m
Porto
Fri 9/20
1 stop13h 30m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Mon 9/9
2 stops33h 15m
Porto
Sat 9/21
2 stops17h 43m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Tue 6/18
2 stops22h 52m
Lisbon Humberto Delgado
Wed 6/26
1 stop15h 51m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Wed 6/12
2 stops28h 19m
Lisbon Humberto Delgado
Wed 6/19
1 stop15h 51m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Wed 5/22
2 stops16h 22m
Lisbon Humberto Delgado
Thu 5/30
2 stops17h 34m
No data available for this route at this time. Please check back soon.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Entertainment
Boarding
Food
Crew
Comfort
Overall
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
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