In general, May is the cheapest month to fly from United States to Porto Alegre. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $660. If you’re not able to fly to Porto Alegre in May, then September is your next best option. Flight prices from United States to Porto Alegre during September average around $771.
The best time to book a flight to Porto Alegre from United States is 48 days out, which is when prices tend to be around $968. However, in the past 72 hours, people saw flights from United States for as low as $435.
On average, the least expensive day to fly to Porto Alegre from United States is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $874. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Porto Alegre is Saturday, with ticket prices averaging around $1,194.
According to our data, the cheapest time of day to fly to Porto Alegre is at noon. momondo users have found flights departing from United States to Porto Alegre at noon for as low as $893. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,214 on average. Flights to Porto Alegre from United States in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.