$388 Find Cheap Flights from Illinois to Vietnam - Compare and Save

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Vietnam.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Vietnam is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Vietnam with an airline and back with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Vietnam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

There are 20 airports in Vietnam. The busiest airport is Ho Chi Minh City Airport (SGN), with 36% of all flights arriving there.

The cheapest month for flights from Illinois to Vietnam is March, when tickets cost $563 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $905 and $810 respectively.

To get a below average price on the flight from Illinois to Vietnam, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

An average nonstop flight from Illinois to Vietnam takes 28h 21m, covering a distance of 8411 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Ho Chi Minh City (SGN) with an average flight time of 20h 05m.

Based on KAYAK flight searches, the most popular destination is Hanoi (99% of total searches to Vietnam). The next most popular destination is Hue (1%).