It’s optimal to fly from Portland to Vientiane in the morning. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight at noon.
The best pricing can be found in the month of September. Prices to Vientiane from Portland average $1,344. You can even find prices in September for less than $1,344, as users have found deals to Vientiane from as low as $899. The month of May appears to be one of the more expensive times to travel to Vientiane from Portland. Flying in the targeted month can save you up to 65%.
Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 85% on the overall cost on flights from Portland to Vientiane.