Users have found that booking a flight from St. Louis to Portugal at least 41 days early can save you up to 170% 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 $1,086 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 $1,229 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
$634 - $1,032
Route
Depart
Return
Price
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Fri 11/1
1 stop13h 55m
Porto
Tue 11/19
1 stop31h 25m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Fri 11/1
1 stop17h 40m
Porto
Tue 11/19
2 stops33h 13m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Fri 11/1
2 stops18h 15m
Porto
Tue 11/19
2 stops30h 10m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Wed 7/24
1 stop13h 58m
Lisbon Humberto Delgado
Wed 7/31
2 stops30h 49m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Wed 7/17
2 stops18h 34m
Lisbon Humberto Delgado
Wed 7/24
2 stops20h 56m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Thu 7/18
2 stops20h 02m
Lisbon Humberto Delgado
Thu 7/25
2 stops15h 15m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 9/10
2 stops37h 25m
Porto
Fri 9/20
2 stops37h 50m
Lambert-St LouisPorto
STL - OPO
STLOPO
Lambert-St Louis
Tue 8/20
2 stops17h 51m
Porto
Sun 9/1
2 stops20h 14m
Lambert-St LouisLisbon Humberto Delgado
STL - LIS
STLLIS
Lambert-St Louis
Fri 8/9
2 stops14h 59m
Lisbon Humberto Delgado
Sat 8/17
2 stops16h 40m
No data available for this route at this time. Please check back soon.
Entertainment
Crew
Comfort
Food
Boarding
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
Crew
Comfort
Food
Boarding
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
Crew
Comfort
Food
Boarding
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
Crew
Comfort
Food
Boarding
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
Crew
Comfort
Food
Boarding
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
Crew
Comfort
Food
Boarding
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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