Cheap flights from Illinois to Thailand from $350
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Thailand departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Illinois to Thailand
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Thailand?
The month of September is, on average, the cheapest month to fly to Thailand from Illinois, with most prices found around $918. If you are unable to visit Thailand during the month of September, then departing from Illinois during the month March is also very affordable. Most momondo users find prices during this month for around $924.
What is the cheapest day to depart on your flight to Thailand?
The cheapest day to depart on your flight to Thailand is on a Tuesday when prices can be found for as low as $1,009. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Thailand is Saturday, with ticket prices averaging around $1,223.
What is the cheapest time of day to depart on your flight to Thailand?
Flying to Thailand from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $962 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Thailand is in the evening when prices are around $1,115.
How far in advance should I book a flight to Thailand?
You are more likely to see cheaper flights to Thailand from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,100 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Illinois for as low as $955 on momondo.
What is the cheapest airline that flies from Illinois to Thailand?
Air India, Cathay Pacific, and Korean Air are the most popular carriers operating from Illinois to Thailand
What airlines fly to Thailand?
EVA Air, Cathay Pacific and ANA are the top three most popular airlines that fly to Thailand from Illinois according to our data. EVA Air is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 17 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.
Cheap Illinois to Thailand flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Thailand
When did momondo last update prices for flights from Illinois to Thailand?
Prices for flights from Illinois to Thailand are updated daily.
How many operators does momondo search for flights from Illinois to Thailand?
There are 17 operators available for flights from Illinois to Thailand as of June 2025.
How old do you have to be to fly from Illinois to Thailand?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Thailand.
What documentation or ID do you need to fly to Thailand?
The required travel and health documents for your Thailand trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Illinois to Thailand
Compare and see reviews for airlines that fly from Illinois to Thailand with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $503 | Free Cancellation | Rating 8.1 3,273 reviews | |||
| PriceFrom $707 | Free Cancellation | Rating 8.3 1,503 reviews | |||
| PriceFrom $729 | Free Cancellation | Rating 5.5 2,917 reviews | |||
| PriceFrom $766 | Free Cancellation | Rating 8.3 887 reviews | |||
| PriceFrom $773 | Free Cancellation | Rating 8.4 1,092 reviews | |||
| PriceFrom $795 | Free Cancellation | Rating 7.5 901 reviews | |||
| PriceFrom $800 | Free Cancellation | Rating 7.3 3,867 reviews | |||
| PriceFrom $823 | Free Cancellation | Rating 7.4 8,831 reviews | |||
| PriceFrom $824 | Free Cancellation | Rating 7.4 1,218 reviews | |||
| PriceFrom $893 | Free Cancellation | Rating 6.8 478 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Thailand?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Thailand for you.
Can I find flights from Illinois to Thailand with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Illinois to Thailand flights to just show those with flexible booking policies.
How can momondo help me find flights from Illinois to Thailand?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Thailand from Illinois.
I’m not ready to book a flight from Illinois to Thailand right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Thailand from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.