$594 Find Cheap Flights from Thailand 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 Thailand to Illinois departing on 12/6. 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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Cheap Flights from Thailand to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Thailand to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Thailand to Illinois

Thu, Sep 3 - Tue, Sep 15
Thai Airways Logo
5:15 pm - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
39h 30m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
12:30 am - 4:50 pmORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
28h 20m1 stop Taipei City Taiwan Taoyuan Intl
$777Thai Airways
Mon, Aug 31 - Sat, Sep 12
Thai Airways Logo
12:40 pm - 9:10 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
20h 30m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
12:30 am - 10:40 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
22h 10m1 stop Taipei City Taiwan Taoyuan Intl
$797Thai Airways
Tue, Aug 25 - Tue, Sep 8
EVA Air Logo
12:40 pm - 9:10 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
20h 30m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 10:40 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
22h 10m1 stop Taipei City Taiwan Taoyuan Intl
$846EVA Air
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
5:15 pm - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
39h 30m1 stop Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
2:00 pm - 11:55 pmORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
21h 55m1 stop Abu Dhabi Zayed Intl
$904Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
5:15 pm - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
39h 30m1 stop Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
8:25 pm - 6:45 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
22h 20m1 stop Abu Dhabi Zayed Intl
$919Multiple Airlines
Tue, Aug 25 - Tue, Sep 22
ANA Logo
9:35 pm - 2:27 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
28h 52m2 stops Tokyo Haneda Washington, D.C. Dulles Intl
ANA Logo
12:00 pm - 5:55 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
29h 55m1 stop Tokyo Haneda
$1,016ANA
Fri, Nov 6 - Tue, Nov 17
Korean Air Logo
9:30 pm - 8:30 amBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
24h 00m1 stop Incheon Intl
Korean Air Logo
11:15 am - 12:45 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
24h 30m1 stop Incheon Intl
$1,017Korean Air
Tue, Nov 3 - Mon, Nov 16
Korean Air Logo
9:30 pm - 8:30 amBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
24h 00m1 stop Incheon Intl
Korean Air Logo
11:15 am - 11:20 pmORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
23h 05m1 stop Incheon Intl
$1,017Korean Air
Tue, Sep 15 - Tue, Sep 29
ANA Logo
7:00 am - 9:32 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
26h 32m2 stops Tokyo Narita Houston George Bush Intcntl
ANA Logo
7:45 pm - 9:35 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
25h 50m1 stop Los Angeles
$1,085ANA
Tue, Oct 6 - Tue, Nov 3
EVA Air Logo
11:35 am - 8:45 pmCNX  Chiang Mai-ORD Chicago O'Hare Intl
21h 10m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
11:30 pm - 10:35 amORD  Chicago O'Hare Intl-CNX Chiang Mai
22h 05m1 stop Taipei City Taiwan Taoyuan Intl
$1,235EVA Air
Booking Insights

KAYAK's insights & trends for flights to Illinois

Get data-powered insights and trends for flights to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Thailand to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Thailand to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Thailand to Illinois is November, when tickets cost $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 $991 and $830 respectively.

How far in advance should I book a flight from Thailand to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Thailand to Illinois, you should book around 2 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Find deals

Good to know

Low season

February

Cheapest flight

$594
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 47% increase in price.
Flight from Phuket City to St. Louis

FAQs for booking flights from Thailand to Illinois

  • How does KAYAK find such low prices on flights from Thailand 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 Thailand to Illinois.

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

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

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

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

Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Illinois
Business Class flights to Illinois
Premium Economy Class flights to Illinois
Economy Class flights to Illinois