Cheap flights from Rio de Janeiro to Porto Alegre from $45

The cheapest month to fly to Porto Alegre from Rio de Janeiro is in September. Flight prices, which tend to average around $108, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in September, then August is your next best option. Flight prices from Rio de Janeiro to Porto Alegre during August average around $110.

Our data shows that Wednesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $121. On the other hand, Sunday is the most expensive day to depart from Rio de Janeiro because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $201.

Our most recent data shows that the best time of day to fly to Porto Alegre is in the afternoon. Flights from Rio de Janeiro to Porto Alegre during this time can be as low as $136. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $378 on average. Flights to Porto Alegre from Rio de Janeiro in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Rio de Janeiro–Galeão Intl to Porto Alegre Salgado Filho for the best Rio de Janeiro - Porto Alegre Salgado Filho flight prices

You are more likely to see cheaper flights to Porto Alegre from Rio de Janeiro when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around $133 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto Alegre from Rio de Janeiro for as low as $108 on momondo.

No. A direct flight is the cheapest option for a flight between Rio de Janeiro to Porto Alegre.

As of May 2026, prices for Rio de Janeiro to Porto Alegre flights are approximately 6% more expensive when compared to flights at the same time last year.

Historically, on average around 8% of flights between Rio de Janeiro and Porto Alegre have experienced a delay on any given week. The average delay length over the past 12 months has been 98 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, LATAM Airlines have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

The number of flights available between Rio de Janeiro and Porto Alegre is 18 per day as of May 2026. The most frequent departure time is 11:00AM, with 55% of daily flights leaving at noon.

The number of flights available between Rio de Janeiro and Porto Alegre is 126 per week as of May 2026. The most frequent departure day is Thu, with 29% of weekly flights leaving on this day.