$375 Cheap Flights from St. Louis (STL) to Lisbon (LIS)

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

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Cheap Flights from St. Louis to Lisbon (STL-LIS)

Prices were available within the past 7 days and start at $375 for one-way flights and $534 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Air Canada
Delta
United
Scandinavian Airlines
United
Air Canada
Delta
United
Lufthansa

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

January is typically the cheapest month to fly

From $536 - $1,082 per traveler.

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS) cost?
Grab a cheap one-way flight from $375 or cheap return flight from $534 from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
December is the least expensive month to fly from STL to LIS. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest STL to LIS flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
You'll need to hop on a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to LIS?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
To land at Humberto Delgado Airport (LIS) on schedule, pick a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS) last-minute?
Booking your ticket from STL to LIS shortly before your trip is generally more expensive. But if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to LIS flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to LIS flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Humberto Delgado Airport (LIS)?
In most instances, you can modify or cancel your STL to LIS flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$533
Distance
4215 mi

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