Cheap flights from Porto to St. Louis from £409

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to St. Louis

3 stops
Tue, Oct 28
Porto OPOSt. Louis STL

£409
Search
3 stops
Sat, Nov 1
Porto OPOSt. Louis STL

£432
Search
3 stops
Sat, Nov 1
Porto OPOSt. Louis STL

£434
Search
3 stops
Fri, Oct 31
Porto OPOSt. Louis STL

£436
Search
3 stops
Sat, Nov 1
Porto OPOSt. Louis STL

£452
Search
3 stops
Sat, Nov 1
Porto OPOSt. Louis STL

£484
Search

Prices updated:

Not happy with the results? Try some of our useful filters

3 stops
Sat, Nov 1 – Thu, Nov 6
Porto OPOSt. Louis STL

£752
Search
2 stops
Sat, Nov 1 – Wed, Nov 5
Porto OPOSt. Louis STL

£1,299
Search
2 stops
Sat, Nov 1 – Wed, Nov 5
Porto OPOSt. Louis STL

£1,401
Search
2 stops
Sat, Nov 1 – Wed, Nov 5
Porto OPOSt. Louis STL

£1,438
Search
2 stops
Sat, Nov 1 – Wed, Nov 5
Porto OPOSt. Louis STL

£1,495
Search
2 stops
Sat, Nov 1 – Wed, Nov 5
Porto OPOSt. Louis STL

£1,540
Search

Prices updated:

Not happy with the results? Try some of our useful filters

How much do flights to St. Louis cost?

Key info about flying to St. Louis

Depart from
Porto
Arrive to
St. Louis Lambert International
Average flights per week
380
Flight distance

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

NameCarrier codeIATA CodePassport needed during booking
Frontier AirlinesFFTF9No
RyanairRYRFRNo
easyJetEZYU2Yes
Air TransatTSCTSNo
WestJetWJAWSNo

Weather in St. Louis

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January3°C-3°C
February6°C-2°C
March13°C3°C
April18°C8°C
May24°C14°C
June29°C19°C
July31°C21°C
August30°C20°C
September27°C16°C
October20°C10°C
November12°C3°C
December7°C0°C
Hottest Month
31°C
July
Coldest month
-3°C
January
Sunny days
265
days per year
Snow days
9
days per year

14 day forecast

Saturday
4 Oct
29°C18°C
11 Oct
87%
23°C15°C
Sunday
5 Oct
31°C15°C
12 Oct
24°C13°C
Monday
6 Oct
31°C17°C
13 Oct
26°C15°C
Tuesday
7 Oct
85%
23°C18°C
14 Oct
75%
33°C19°C
Wednesday
8 Oct
23°C13°C
15 Oct
77%
24°C17°C
Thursday
9 Oct
22°C12°C
16 Oct
22°C14°C
Friday
10 Oct
87%
23°C15°C
17 Oct
86%
33°C18°C
The most popular airlines for this route are Frontier Airlines, Ryanair, easyJet, Air Transat, and WestJet. Porto and St. Louis have 380 direct flights per week.

Frequently asked questions

What are the most popular routes to and from Porto?
What are the most popular routes to and from St. Louis?
What airports are near Porto?
What airports are near St. Louis?
Which airlines fly between Porto and St. Louis?
When’s the best time to travel between Porto and St. Louis?
What flights operate between Porto and St. Louis?
How many airports are there near Porto?
How many airports are there near St. Louis?
What time do nonstop (direct) flights between Porto and St. Louis depart?
What time do nonstop (direct) flights between Porto and St. Louis arrive?
What time do flights between Porto and St. Louis depart?
What time do flights between Porto and St. Louis arrive?

Explore alternative trips

Flights from Porto

Flights to St. Louis

Popular routes

The nearest countries with flights to St. Louis

Here is a list of countries people are flying from

Other destination countries from Porto

Here is a list of countries people are flying to

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Find the best connection from Porto to St. Louis
Search flights