CA $1,055 Cheap Flights from St. Louis (STL) to Lisbon (LIS)

View CA $1,055 flight on Thu, Jun. 25, 2026Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Humberto Delgado Airport (LIS)

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Cheap flights from St. Louis (STL) to Lisbon (LIS)

Prices were available within the past 7 days and start at CA $1,055 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from St. Louis (STL) to Lisbon (LIS)

January is typically the cheapest month to fly

From CA $732 - CA $1,446 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Lisbon (STL - LIS) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Humberto Delgado
Distance
6745 km

St. Louis to Lisbon District Flights

The easy way to book your flights from St. Louis to Lisbon 

With Expedia, it’s simple to find and book flights to Lisbon from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 15 airlines that cover this route. There are nonstop flights to Humberto Delgado, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Lisbon today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Humberto Delgado, LIS 

Sort your search results by price to find great deals on your flight from St. Louis to Lisbon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Lisbon from St. Louis currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Lisbon  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Lisbon from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Lisbon with Expedia today.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Lisbon Airport?
Round-trip flights between Lambert-St. Louis Intl. Airport (STL) and Lisbon/Portela Airport start from . This is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to LIS?
Most flights can be conveniently cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your trip, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to Lisbon Airport that have flexible change policies?
Many airlines will allow you to reschedule your flight without a change fee. All you pay is the cost difference between the two flights. When looking for STL to Humberto Delgado Airport (LIS) flights, you'll see a "No change fees" filter for you to select.
How many hours is the flight from STL to Lisbon Airport?
Averaging 10 hours and 4 minutes, the journey from STL to Lisbon Airport is a lengthy one. To make your trip more comfortable, remember to pack a good neck pillow and a pair of noise-cancelling earphones.
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
The distance is around 6,800 kilometres. Travel pillow? Check. Spare socks? Check. We recommend you pack all the essentials for this long-haul St. Louis to Lisbon District flight.
Which airlines fly direct from STL to Humberto Delgado Airport (LIS)?
Flying directly between Lambert-St. Louis Intl. Airport (STL) and Lisbon/Portela Airport isn't possible right now. However, you'll still be able to find a flight to Lisbon District with at least one stop.
Are STL to Lisbon Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so not always. While last-minute flight deals between STL and Lisbon Airport are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some carriers announce their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to book when the price dips.

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