Cheap flights from St. Louis, MO to Porto, Portugal
Flights starting at $319. Choose between Frontier Airlines, Spirit Airlines, or easyJet to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Porto
Cheapest one-way trip | $528 |
---|---|
Cheapest round-trip | $888 |
Average round-trip | $893 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Frontier Airlines, Spirit Airlines, easyJet, TAP Portugal, and Vueling. St. Louis and Porto have 190 direct flights per week. When you arrive at Porto, consider visiting Santiago De Compostela, and Bairro of Ribeira, Portugal.
Check-in for a flight from St. Louis to Porto
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
TAP Portugal | TAP | TP | No | Opens 36 days before flight Closes 1 hours before flight |
Vueling | VLG | VY | No | Opens 168 days before flight Closes 4 hours before flight |
Weather in Porto
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 13°C | 7°C |
February | 14°C | 7°C |
March | 16°C | 9°C |
April | 18°C | 10°C |
May | 20°C | 12°C |
June | 22°C | 15°C |
July | 25°C | 16°C |
August | 26°C | 17°C |
September | 24°C | 16°C |
October | 21°C | 14°C |
November | 16°C | 10°C |
December | 14°C | 9°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from St. Louis
- Flights from St. Louis to Las Vegas
- Flights from St. Louis to Los Angeles
- Flights from St. Louis to Denver
- Flights from St. Louis to Orlando
- Flights from St. Louis to Atlanta
- Flights from St. Louis to Minneapolis
- Flights from St. Louis to San Diego
- Flights from St. Louis to San Francisco
- Flights from St. Louis to London
- Flights from St. Louis to Phoenix
- Flights from St. Louis to Seattle
- Flights from St. Louis to Houston
- Flights from St. Louis to Sacramento
- Flights from St. Louis to New York
- Flights from St. Louis to Cancún
- Flights from St. Louis to Washington, D.C.
- Flights from St. Louis to Fort Lauderdale
- Flights from St. Louis to Oakland
- Flights from St. Louis to Tampa
- Flights from St. Louis to Paris
Flights to Porto
- Flights from New York to Porto
- Flights from Los Angeles to Porto
- Flights from San Francisco to Porto
- Flights from Boston to Porto
- Flights from Madrid to Porto
- Flights from London to Porto
- Flights from Denver to Porto
- Flights from Tel Aviv to Porto
- Flights from Chicago to Porto
- Flights from Paris to Porto
- Flights from Luxembourg to Porto
- Flights from Vienna to Porto
- Flights from Barcelona to Porto
- Flights from Seattle to Porto
- Flights from Orlando to Porto
- Flights from Brussels to Porto
- Flights from Miami to Porto
- Flights from Lisbon to Porto
- Flights from Copenhagen to Porto
- Flights from Budapest to Porto
Popular routes
- Flights from London to New York
- Flights from Pristina to Barcelona
- Flights from Prague to Tangier
- Flights from Jaipur to Los Angeles
- Flights from San José to Burlington
- Flights from New York to Tel Aviv
- Flights from Brasília to Los Angeles
- Flights from Chicago to Gothenburg
- Flights from Santa Cruz de La Palma to Madrid
- Flights from Marseille to Palermo
- Flights from Los Angeles to Santa Ana
- Flights from Lafayette to Fort Lauderdale
- Flights from Los Angeles to Las Vegas