$368 Find Cheap Flights from Chicago to Thailand

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Thailand departing on 1/7. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Thailand

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Thailand

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$675
Phuket City
Phuket City1 stop$682
Chiang Mai
Chiang Mai1 stop$684
Ko Samui
Ko Samui2 stops$1,033
Krabi
Krabi2 stops$870
Chiang Rai
Chiang Rai2 stops$926
Bangkok
Bangkok1 stop$675
Phuket City
Phuket City1 stop$682
Chiang Mai
Chiang Mai1 stop$684
Ko Samui
Ko Samui2 stops$1,033
Krabi
Krabi2 stops$870
Chiang Rai
Chiang Rai2 stops$926

Book Cheap Chicago to Thailand Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Thailand 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 Chicago to Thailand

Thu, Nov 6 - Tue, Nov 18
Korean Air Logo
11:15 am - 12:45 amORD-BKK
24h 30m1 stop
Korean Air Logo
12:55 am - 8:30 amBKK-ORD
20h 35m1 stop
$675Korean Air
Find Deal
Wed, Nov 5 - Tue, Nov 25
Cathay Pacific Logo
2:40 pm - 10:40 amORD-BKK
31h 00m1 stop
Cathay Pacific Logo
4:55 pm - 1:00 pmBKK-ORD
33h 05m1 stop
$678Cathay Pacific
Find Deal
Mon, Oct 20 - Sun, Nov 2
Air India Logo
1:10 pm - 8:25 pmORD-BKK
43h 15m1 stop
Air India Logo
5:55 pm - 11:30 amBKK-ORD
30h 35m2 stops
$683Air India
Find Deal
Thu, Jan 22 - Thu, Jan 29
ANA Logo
4:25 pm - 6:30 amORD-BKK
25h 05m1 stop
ANA Logo
7:10 am - 1:50 pmBKK-ORD
19h 40m1 stop
$696ANA
Find Deal
Mon, Mar 2 - Tue, Mar 17
United Airlines Logo
6:31 pm - 11:25 amORD-BKK
27h 54m2 stops
United Airlines Logo
9:10 am - 8:20 amBKK-ORD
35h 10m1 stop
$698United Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 30
United Airlines Logo
3:40 pm - 11:25 amORD-BKK
30h 45m2 stops
United Airlines Logo
9:10 am - 3:10 pmBKK-ORD
19h 00m1 stop
$702United Airlines
Find Deal
Wed, Jan 14 - Thu, Jan 29
ANA Logo
4:25 pm - 4:20 pmORD-BKK
34h 55m1 stop
ANA Logo
7:10 am - 1:50 pmBKK-ORD
19h 40m1 stop
$711ANA
Find Deal
Wed, Feb 18 - Thu, Mar 26
Air India Logo
1:30 pm - 7:40 amORD-BKK
29h 10m1 stop
Air India Logo
5:55 pm - 12:30 pmBKK-ORD
30h 35m2 stops
$725Air India
Find Deal
Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 10:35 amORD-CNX
22h 05m1 stop
EVA Air Logo
11:50 am - 8:35 pmCNX-ORD
20h 45m1 stop
$899EVA Air
Find Deal
Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 10:35 amORD-CNX
22h 05m1 stop
EVA Air Logo
11:50 am - 8:35 pmCNX-ORD
20h 45m1 stop
$902EVA Air
Find Deal
Booking Insights

KAYAK's insights & trends for Chicago to Thailand flights

Get data-powered insights and trends into flights from Chicago to Thailand to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Thailand, 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 Chicago O'Hare Intl Airport to Thailand is August, when tickets cost $807 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,397 and $1,360 respectively.

What’s the cheapest day of the week to fly from Chicago to Thailand?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Thailand clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago to Thailand, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Thailand, Tuesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Thailand?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Thailand, 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 Chicago O'Hare Intl Airport to Thailand, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$368
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Chicago O'Hare Airport to Bangkok Suvarnabhumi Airport

FAQs - booking Thailand flights

  • How does KAYAK find such low prices on flights from Chicago to Thailand?

    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 Chicago to Thailand.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to Thailand 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 Chicago to Thailand?

    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 Chicago to Thailand 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 Chicago to Thailand?

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

  • What is the cheapest time of day to fly to Thailand?

    The cheapest time of day to fly to Thailand is generally in the afternoon, when round-trip flights cost $962 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Thailand is generally at night, which is peak travel time and where the average cost of a ticket is $1,115.

Reviews of the top 5 airlines serving from Chicago to Thailand

 
Need help choosing which airline to fly with from Chicago to Thailand? 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.
8.4
EVA AirOverall score based on 1236 reviews
8.3Comfort
8.0Entertainment
8.6Crew
8.4Boarding
8.1Food
Airline reviews

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

4.0 OkayAnonymous, Aug 2025TPE - SEA
Read more EVA Air reviews

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

Flight Attendants could have been nicer and food portions could be bigger.

Great experience, comfort and food is delicious. Always great service and one time

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

The flight attendants should be nicer, on my first flight I told them I’d prefer a veggie meal sometimes and then she began to lecture me about it, it was a late flight and I wanted an easy digestion meal so that I can sleep quickly. The meals were abit odd, breakfast on my last flight had eggs, oatmeal and fish, did not taste good at all, strange combination. The economy seats are very tight and crowded, not comfortable at all. Overall for the price I paid I thought I was going to get more.

seats are pitched well. you don't feel too tight.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

Luckily I just tried to sleep. But the entertainment system was awkward to operate. I hate all this stuff with apps and adding it to your phone and all. It is a nuisance. I would prefer a good magazine or newspaper in the pocket in front of me or available.

One of the best 14 hour flights I've ever had. Crew was friendly throughout which can be difficult on longer flights. The crew being kind and respectful is very important for me. Plane felt clean and I was able to get some well needed uninterrupted sleep. I put them slightly above Cathay Pacific as far as cleanliness the only down side was a lack of entertainment selections, but hey I am an American taking a trip on a Japanese airline so I cannot complain. Thank you ANA and the Tokyo airport all very friendly. Will see you soon

Poor. We weren’t able to check in online (for several hours until we gave up) for no apparent reasons although our passports were loaded successfully. When we were at the airport check-in, a rep helped us at the kiosk but she disregarded the KTN provided to her so we had to come back for it after being questioned by the TSA person…

ANA gave me an amazing experience. They are very good with customer service.

Everything was good may improve some alcohol drinks and amenities during fly

The crew was amazing, really friendly and efficient. One of the best flights I have ever been on. They made the long flight comfortable and I noticed there were two birthdays on the flight. They gave to customers birthday cards and wished them a happy birthday. That was very nice to see.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

Not many people, so you can lay down on two seats

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Check in process at the kiosk, crew in flight and overall comfort was good. Food selection could have been better. Flight from Hong Kong to Los Angeles did not have any vegetarian main course option, it was either sea food or chicken. Being a vegetarian I could only eat yogurt and fruit. Most international flights have one vegetarian main course dish which I found missing in Cathay Pacific menu.

Great. Efficient boarding process with the face recognition. Plenty of cabin space for luggage.

They ran out of food and were offering random food to passengers.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

I have a Peanut Allergy and the Steward staff were very accommodating in ensuring my safety as my allergy is life threatening. Very professional and so vested in their profession.

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

Everything was fine and I have no complaints or things to note.

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Everything you need to know for your flight from Chicago to Thailand

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.