Cheap First Class flights to Portugal
LAX — LIS
Jan 9 — Jan 161
1 adult, First
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Cheapest first class flights to PortugalExplore the most affordable first class flight options available to Portugal. Find the lowest fares based on data from user searches, with prices last updated on December 10, 2025.
Explore the most affordable first class flight options available to Portugal. Find the lowest fares based on data from user searches, with prices last updated on December 10, 2025.
This Air France deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:50 pmIAD - LIS
1 stop11h 30mAir France
Sun 1/45:30 amLIS - IAD
1 stop16h 05mAir France
Deal found 12/9![Air France logo]()
$15,954
Travel insights for first class flights from USA to Portugal
Get recent, data-driven insights about first class flights from USA to Portugal including ideal travel times, pricing trends, and more.
Rainfall in Portugal by month
Plan your trip to Portugal by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.
Temperature in Portugal by month
Plan your trip to Portugal by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).