$381 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 5/5. 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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Best Thailand Flight Deals from Chicago

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Bangkok
Bangkok1 stop$717
Phuket City
Phuket City1 stop$786
Chiang Mai
Chiang Mai1 stop$858
Ko Samui
Ko Samui2 stops$1,137
Krabi
Krabi2 stops$849
Chiang Rai
Chiang Rai3 stops$1,638
Udon Thani
Udon Thani2 stops$1,599
Bangkok
Bangkok1 stop$717
Phuket City
Phuket City1 stop$786
Chiang Mai
Chiang Mai1 stop$858
Ko Samui
Ko Samui2 stops$1,137
Krabi
Krabi2 stops$849
Chiang Rai
Chiang Rai3 stops$1,638
Udon Thani
Udon Thani2 stops$1,599

Cheap Flights from Chicago to Thailand

 
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.

Recent round-trip flight deals from Chicago to Thailand

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Thailand.
Discover the best prices for you by selecting your travel dates on KAYAK.
ANA Logo
5:45 pm - 6:00 amORD-BKK
24h 15m1 stop
ANA Logo
9:35 pm - 3:10 pmBKK-ORD
29h 35m1 stop
$717ANA
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Thu, Sep 4 - Wed, Sep 10
United Airlines Logo
12:50 pm - 4:35 amORD-BKK
27h 45m1 stop
United Airlines Logo
9:35 am - 3:10 pmBKK-ORD
41h 35m1 stop
$752United Airlines
Find Deal
Mon, Aug 18 - Mon, Sep 1
Korean Air Logo
12:10 pm - 9:45 pmORD-BKK
21h 35m1 stop
Korean Air Logo
11:15 pm - 8:30 amBKK-ORD
22h 15m1 stop
$762Korean Air
Find Deal
Fri, Oct 24 - Fri, Nov 7
Cathay Pacific Logo
4:00 pm - 11:50 pmORD-BKK
19h 50m1 stop
Cathay Pacific Logo
12:30 pm - 2:25 pmBKK-ORD
37h 55m1 stop
$781Cathay Pacific
Find Deal
Tue, Aug 19 - Sun, Aug 31
Cathay Pacific Logo
4:00 pm - 10:50 amORD-HKT
30h 50m1 stop
Cathay Pacific Logo
6:20 pm - 2:25 pmHKT-ORD
32h 05m1 stop
$786Cathay Pacific
Find Deal
Thu, Aug 28 - Wed, Sep 3
Korean Air Logo
12:10 pm - 11:25 pmORD-BKK
23h 15m1 stop
Korean Air Logo
1:00 am - 8:30 amBKK-ORD
20h 30m1 stop
$848Korean Air
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Tue, Oct 21 - Tue, Nov 11
Turkish Airlines Logo
7:50 pm - 3:25 pmORD-BKK
31h 35m1 stop
Turkish Airlines Logo
10:40 pm - 7:25 pmBKK-ORD
32h 45m1 stop
$906Turkish Airlines
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Wed, Oct 1 - Thu, Oct 30
EVA Air Logo
12:30 am - 11:10 amORD-BKK
22h 40m1 stop
EVA Air Logo
11:10 am - 8:45 pmBKK-ORD
21h 35m1 stop
$916EVA Air
Find Deal
Wed, Sep 3 - Wed, Sep 10
EVA Air Logo
12:30 am - 10:25 amORD-BKK
21h 55m1 stop
EVA Air Logo
2:15 am - 8:35 pmBKK-ORD
30h 20m1 stop
$918EVA Air
Find Deal
Tue, Sep 30 - Wed, Oct 29
Turkish Airlines Logo
11:45 pm - 5:15 amORD-BKK
41h 30m1 stop
Turkish Airlines Logo
10:00 am - 11:10 amBKK-ORD
37h 10m1 stop
$922Turkish Airlines
Find Deal
Mon, Oct 6 - Thu, Oct 30
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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 time of day to fly to Thailand?

The average price for all round-trip flights from Chicago O'Hare Intl Airport to Thailand depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

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 February, when tickets cost $932 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,535 and $1,446 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 11 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

September

High season

November

Cheapest flight

$381
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 1% increase in price.
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.

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 1186 reviews
8.0Entertainment
8.4Boarding
8.3Comfort
8.6Crew
8.1Food
Airline reviews

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

10.0 ExcellentNana, Mar 2025MNL - TPE
Read more EVA Air reviews

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.

Good. Please add a non- applicable category to your questions.

The app was awful. No accurate info. Paying for internet is a negative (Delta is free). The crew was very nice for the most part although you are not guaranteed to get good service. Some crew would ignore requests for things as simple as a cup of water if you were sleeping when the first serving was made. Food was great. Male crew member was exceptionally kind and responsive.

It was a good flight. I would highly recommend it to family and friends.

The employees were professional and efficient. I consider myself a traveler but have trouble with the international fare served on airplanes. I admit Americans buy their food in the supermarket and we typically don’t eat the ligaments and cartilage. I know that is whiny but as I age, I dislike it more. At least things weren’t covered in cheese. The desserts are terrible! My neighbor didn’t eat her bread so I asked if I could have it. First time for everything but had been traveling a total of 27 hours and was hungry.

Amazing crew, excellent food, business class seats seem a bit dated but are super comfy even for a very tall person. If continuing onto Taipei, the stopover in Bangkok is a bit annoying (queue at security) though the lounge is decent.

The night flight was only 2/3 full, which is always a plus. Room to stretch out for sleeping. Gracious stewardesses, attentive, and slim/attractive (which is rare these days). Good food, and curtesy wine.with meals. Comfortable seats and decent leg room (economy class)

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.

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

My wife and I liked almost everything about ANA except for the economy seat space and the cold breakfast (croissant which seemed to just come out of the fridge)

Excellent service and comfortable seats. Friendly and helpful staff. No food for a 3hr flight over lunch time which was surprising (or is that a feature of domestic flights in Japan?)

When booking the flight i picked it because it said flying with ana even on our e-ticket as well but I showed up to the airport and I flew with united. I have flew with both airlines before and I prefer ana for the food quality and comfortable. So I was disappointed in that outcome and felt the food gave me minor ibs. The whole thing was missing leading with not getting what I thought I was paying for. Felt a bait and switched. Do not have confidence in using this app in the future trips

The flight was smooth, but there were not enough options for meals and I was given beef when I do not eat beef. The flight going was much better because we received more snacks.

This was a large plane with an upper deck. It seems like business was upstairs. If it was a US airline then I would say I sat in economy plus, but I think it was just economy. Though since ANA would not allow me to choose seats for the price it may have been plus. Lots of movies to choose from, and good service.

This was the best airline I’ve ever taken. The staff are amazing. The food was great. The pilot was phenomenal. I would highly recommend this airline.

I had to get rerouted because the weather delayed my flight enough to miss both of my connecting flights. I select nearly 2 hours on customer service trying to get rerouted and had to miss my first plane which took my luggage to San Francisco. Luckily, customer service sent me to the same airport but I had to ride 12 hours in economy after I paid extra for premium economy. Totally sucks that I overpaid. Customer service and airplane crew were great and really helpful though. Although I still hate how small the seat was, especially since I'm smaller than average, I can't imagine how much it would suck for an average sized person.

Flight attendant took good care of my mom as she boarded on and off the aircraft from her wheelchair. I did not care much for the food nor the movie options Available. I appreciated the increased legroom available in economy. This was one of the main reasons we chose the airline. Overall, the good value and I would fly again.

Cabin crew were excellent in taking care of my mom as she boarded the aircraft from her wheelchair. Did not care much for the food served.

I stopped flying with United back in the nineties. Today's experience reminded me of why.

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

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!

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.

When comes to Taiwan airlines China airlines is the best rest are pure trash

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Professional & courteous cabin crew. Food was very good even in economy class

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

Information on your arrival and departure airports

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