Travelers have found it’s best to book a flight 19 days in advance to save up to 2% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 19 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland to Shanghai 1-2 weeks in advance for as low as $403, or $416 for flights within the next 24 hours.
Due to multiple factors, expect to potentially pay more when booking in August. For low rates, October can be a great choice for travel to Shanghai. Flights to Shanghai from Portland in October are about $596 on average during October, but can be found for as low as $399.
The chart below displays the airlines Cheapflights users traveling from Portland to Shanghai choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
||$367||$538||No cancel fee||67%|
||$381||$574||No cancel fee||71%|
||$348||$670||No cancel fee||69%|
||$499||$908||No cancel fee||N/A|