$599 Find Cheap Flights from Thailand to Chicago - 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 to Chicago departing on 12/11. 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.
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1 adult, Economy, 0 bags

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Cheap Flights from Thailand to Chicago

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

Sat, Sep 26 - Fri, Oct 2
Thai Airways Logo
8:15 am - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
24h 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
$790Thai Airways
Wed, Sep 16 - Sat, Sep 26
Thai Airways Logo
12:40 pm - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
20h 05m1 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
$790Thai Airways
Sun, Sep 6 - Tue, Sep 15
EVA Air Logo
12:40 pm - 8:45 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
20h 05m1 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
$822EVA Air
Tue, Sep 15 - Tue, Sep 22
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
$928Multiple Airlines
Wed, Dec 9 - Mon, Dec 28
Oman Air Logo
9:00 am - 6:20 amBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
34h 20m2 stops Muscat Seeb Amman Queen Alia Intl
Oman Air Logo
6:50 pm - 5:15 pmORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
33h 25m2 stops Amman Queen Alia Intl Muscat Seeb
$940Oman Air
Sun, Sep 27 - Sun, Oct 4
Korean Air Logo
9:40 pm - 9:30 amBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
23h 50m1 stop Incheon Intl
Korean Air Logo
12:10 pm - 1:05 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
24h 55m1 stop Incheon Intl
$1,003Korean Air
Sat, Nov 21 - Thu, May 13
Korean Air Logo
11:15 pm - 8:30 amBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
22h 15m1 stop Incheon Intl
Korean Air Logo
12:20 pm - 9:45 pmORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
21h 25m1 stop Incheon Intl
$1,023Korean Air
Tue, Nov 17 - Wed, May 12
United Airlines Logo
7:10 am - 1:50 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
19h 40m1 stop Tokyo Narita
United Airlines Logo
12:15 pm - 4:35 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
28h 20m1 stop Tokyo Haneda
$1,027United Airlines
Sun, Nov 15 - Sun, May 9
United Airlines Logo
7:10 am - 2:50 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
20h 40m1 stop Tokyo Narita
United Airlines Logo
12:15 pm - 4:35 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
28h 20m1 stop Tokyo Haneda
$1,027United Airlines
Tue, Dec 8 - Fri, May 21
EVA Air Logo
12:45 pm - 7:35 pmBKK  Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl
19h 50m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 10:55 amORD  Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi
22h 25m1 stop Taipei City Taiwan Taoyuan Intl
$1,216EVA Air
Booking Insights

KAYAK's insights & trends for flights to Chicago

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

What is the cheapest flight to Chicago?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Chicago was found on the route from Chiang Mai, at $790 return. The most popular connection is from Bangkok to Chicago and KAYAK users have found round-trip deals for as low as $790 in the last 5 days.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Chicago O'Hare Intl Airport, 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 to Chicago O'Hare Intl Airport is January, where tickets cost $972 on average for return flights. On the other hand, the most expensive months are May and April, where the average cost of tickets from Thailand is $1,496 and $1,460 respectively. For one-way flights, the best month to travel is November with an average price of $644.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago O'Hare Intl Airport, 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, 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 22 weeks before departure.

Good to know

Low season

January

Cheapest flight

$599
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Chiang Mai to Chicago

FAQs - booking Chicago flights

  • What is the cheapest flight to Chicago?

    In the last 5 days, the cheapest flight deal to Chicago was found on the route from Chiang Mai, at $790 return. The most popular connection is from Bangkok to Chicago and KAYAK users have found round-trip deals for as low as $790 in the last 5 days.

  • How far is Chicago O'Hare Intl Airport from central Chicago?

    Central Chicago is 16 miles away from Chicago O'Hare Intl Airport.

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

    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 to Chicago.

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

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

  • What is the Hacker Fare option on flights to Chicago?

    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 to Chicago 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 to Chicago?

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

  • How many direct flights to Chicago O'Hare Intl Airport are there each week?

    Each week there are around 33,040 direct flights from within Thailand to Chicago O'Hare Intl Airport. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Chicago

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.

Reviews of the top 5 airlines serving from Thailand to Chicago

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Chicago? 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 1515 reviews
8.3Comfort
8.1Food
8.0Entertainment
8.4Boarding
8.7Crew
Airline reviews

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

8.0 ExcellentIvonny, Jul 2026
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.

I always enjoy flying with Japanese Airlines. The whole experience is always a pleasure. This flight was no exception. Thank you Kayak for making it so easy to decide.

Overall, it was ok. The attendants are nice. It was a short flight, and I did not use the restrooms. What I was frustrated was the check-in. I was to fly from ATL to Chicago (American) then change to Japan Airline to go to Japan. I checked in, but I only got a boarding pass for the flight from Atlanta to Chicago. It said I would need to check in for a flight to Japan on Japan Airline site. When I tried to check in on JAL website, it said I need to check in American... It was very confusing.

service was excellent. crew very polite, courteous, and good service especially to passengers like me who is a wheelchair passenger

The flights were on time and the cabin crew were very nice. The only downside was that the food was not good

Very comfortab flight. The flight crew and service was terrific. The food was average at best.

Excellent service, excellent food and beverage options, plenty of legroom

Check in procedure is harder than with other airlines, infotainment system is outdated

great experience - staff were kind and attentive and food was excellent. very comfortable flight that felt much shorter than 14 hours.

JAL is an exceptional airline that shows the true heart of Japanese omotenashi service. If the option is available I’ll always chose it

I would like to add American food so tired of rice after being there for 10 days didn’t want anymore to pay an airline did not have my bag marked right so it is still sitting in O’Hare. I am home.

The flights with ANA were great. The flights with United, not so much.

Attendants were very kind and frequently offered water and snacks. Food was excellent. For some reason, my IFE system would not play dialogue for any media despite my efforts to change to different language voiceovers, restart the system, etc. so I could not watch any videos.

Staff at gate and crew on plane efficient and friendly.

As always, there is that one or two flight attendants that could be better.

It was good. The crew was efficient, food was good

Vegetarian options were not that great. However, the crew and service was awesome

Entertainment was good , comfort on airplane easy hoarding food and drinks was good and a friendly and good service of flight staff

I was good seat to keep stretch my legs . but couldn’t keep my bag in my hand . because they told me can’t keep my seat is no holder , because no seat fronts of us. wish I can put my leg on something higher. but instead of that everything goood.

Good airlines btu ORL airport messed up the return flight for me. Checking out a connecting flight pax is unacceptable.

Although the flight was delayed because of the equipment came in late, I still give them excellent service ..good food selection and in flight entertainment were sufficient.. I will continue to fly with them

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Gurnee
Merrillville
South Haven
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Saint Joseph
Tinley Park
Hammond
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Des Plaines
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Portage
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Willowbrook
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Northbrook
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Elmhurst
Romeoville

Everything you need to know for your flight to Chicago

Information on the airport you'll fly into in Chicago