฿20,604 Find Cheap Flights from Southeast Asia to Illinois – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Southeast Asia to Illinois departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Useful Info

Good to know

Low season

January

Cheapest flight

฿20,604
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly (12% more expensive on average)
Flight from Bangkok to St. Louis

FAQs for booking flights from Southeast Asia to Illinois

  • How does KAYAK find such low prices on flights from Southeast Asia to Illinois?

    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 Southeast Asia to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southeast Asia to Illinois?

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

  • What is the Hacker Fare option on flights from Southeast Asia to Illinois?

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to Illinois?

    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 Southeast Asia to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many airports are there in Illinois?

    There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 92% of all flights arriving there.

  • What is the cheapest month to fly from Southeast Asia to Illinois?

    The cheapest month for flights from Southeast Asia to Illinois is September, when tickets cost ฿18,621 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is ฿28,906 and ฿26,150 respectively.

  • How far in advance should I book a flight from Southeast Asia to Illinois?

    To get a below-average price on a flight from Southeast Asia to Illinois, you should book around 2 weeks before departure, which saves you about 50% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

  • How long is the flight to Illinois?

    An average direct flight from Southeast Asia to Illinois takes 32h 25m, covering a distance of 22278 km. The shortest route is Chiang Mai (CNX) to Chicago O'Hare Intl Airport (ORD) with an average flight time of 21h 10m.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (89% of total searches to Illinois). The next most popular destinations are St. Louis (8%) and Peoria (3%).

Reviews of the top airline flying from Southeast Asia to Illinois

 
Need help choosing which airline to fly with from Southeast Asia to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.5
EVA AirOverall score based on 1500 reviews
8.1Food
8.3Comfort
8.7Crew
8.0Entertainment
8.4Boarding
Airline reviews

First international flight where the meals were not to my taste.

8.0 ExcellentIvonny, Jul 2026
TPE - SEA
Read more EVA Air reviews

First international flight where the meals were not to my taste.

Overall, my experience with EVA Air was mixed. The highlight was that the airline clearly tried to provide a premium dining experience by offering the Michelin-starred Kanpai Classic beef yakiniku rice. However, in the limited space of an economy-class cabin, this meal felt overly oily and not very practical to eat. The sauce and grease made it easy to get one’s hands or tray table dirty, and after the meal many passengers may need to go to the lavatory simply to wash their hands. While the food itself may be high quality, the presentation and practicality did not seem well suited to an in-flight environment. Another disappointing part was the paid Wi-Fi service. I paid for the internet package, but the service did not work properly. What made the experience more frustrating was that passengers then had to spend additional time requesting a refund, and the refund process itself was slow and inconvenient. For an international airline, I think a malfunctioning paid service should be handled more efficiently. As for the seat, I feel EVA Air’s economy-class seats may be more comfortable for Asian passengers or people with smaller body frames, but they may not be as comfortable for taller or larger Western passengers on long-haul flights. The overall cabin environment also varied during the flight. Some passengers were not very mindful of noise, cleanliness, or shared cabin etiquette, which affected the comfort of the journey. I believe clearer reminders from the airline regarding cabin manners and hygiene could help improve the overall passenger experience. In short, EVA Air has some strong points, especially in trying to offer a premium Taiwanese-style service, but there are also areas that need improvement: more practical in-flight meals, a more reliable paid Wi-Fi system, faster refund handling, and better cabin management during long-haul flights.

Other than spotty internet, great servic, comfortable and smooth flight!

Crew was good. Sometimes food was eh. The spaghetti is gross for me. First time i got food, they didn’t provide utensils so i ate with my hands. I was hungry. They gave it to me 20 mins later when a crew member came by. I would fly with them again. Nobody is perfect

Eva air was fine - Trip.com via KAYAK sold my family access to a “VIP” lounge fo a layover in Taipei… i’m please look at my pictures. It was a scam, Trip.com knows it and they are perpetrating a fraud through your web site.

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Polite hard working crew. No complaints really. Meals were not to my liking.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

Everything you need to know for your flight to Illinois

Cabin class types available on flights to Southeast Asia

Cabin classes available on flights to Southeast Asia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.