$352 Cheap Flights from Houston (IAH) to Lisbon (LIS)

You can find cheap one-way flights from $352 and cheap return flights from $730 Houston, TX (IAH-George Bush Intercontinental) to Lisbon (LIS-Humberto Delgado) with Expedia. One-way flights typically cost between $547 and $4956, and return flights often range between $687 and $5516. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Houston, TX (IAH-George Bush Intercontinental) to Lisbon (LIS-Humberto Delgado) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

January is the cheapest month to fly from Houston, TX (IAH) to Lisbon (LIS), with average round-trip fares around $631. This is about 33% lower than the average price throughout the year, as travel demand tends to decrease after the holiday season. Other affordable months to consider are February and November.*Averages based on flights available on Expedia in the last year.

Flying from Houston, TX (IAH) to Lisbon (LIS) is best done in January or February. Return flights are typically around $631, making these months both affordable and enjoyable. January offers a chance to escape the winter blues, while February is perfect for experiencing Lisbon's mild winter weather.*Prices based on flights available on Expedia in the last year.

Business class seats are offered on the IAH to LIS route. Airlines that offer business class service on this route include:

• British Airways
• Turkish Airlines
• Air France
• Air Canada
• United Airlines
• KLM
• Lufthansa
• Delta Air Lines
• American Airlines

First class is available with United Airlines and Lufthansa.

It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.