Cheap Flights from Chicago O'Hare International to Samui International

Compare Chicago O'Hare International to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

Book the best Samui International fare with no extra fees

Flight deals from Chicago O'Hare International to Samui International

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International to Samui International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago O'Hare International to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Samui International flights are currently cheapest in August.

Chicago O'Hare International to Samui International: Alternative routes

Compare routes from Chicago O'Hare International to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Chicago to Koh Samui: Flight information

The things to know before you go.
Cheapest flight foundRs155,352
Cheapest month to flyAugust

Finding cheap flights from Chicago O'Hare International to Samui International: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to Samui International is Rs291,189. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago O'Hare International to Samui International. But we found flights with one or more stops from Rs291,189.
As of July 2025, there are no flights flying from Chicago O'Hare International to Samui International.
The cheapest month to fly from Chicago O'Hare International to Samui International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Samui International Airport on Sunday, 31 August 2025.
No airlines currently offer direct flights between Chicago O'Hare International Airport and Samui International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, ANA (All Nippon Airways) offers the cheapest flight tickets to Samui International.

Travelling from O'Hare International Airport (ORD) to Koh Samui Airport (USM): what you need to know

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport on time to catch your ORD to USM flight.

  • You can expect bigger queues during popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a good idea.

How to find the cheapest flights from O'Hare International Airport (ORD) to Koh Samui Airport (USM)

  • Rs155,352 is the lowest price for a one-way O'Hare International Airport to Koh Samui Airport flight. Return flights start at Rs291,189. These fares can change depending on demand.

  • It's often best to book as early as possible if you want to find cheap tickets from ORD to USM. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.

  • If you can be flexible with your travel plans, try using the 'Whole month' search function. It'll give you the lowest price across the month when looking for a flight from O'Hare International Airport to Koh Samui Airport.

  • Cut down on the time spent looking for cheap flights from ORD to USM by setting up a Price Alert. You'll receive an email or notification on the app when a new discounted fare appears.

  • Secure the perfect flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from O'Hare International Airport to Koh Samui Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and number of stops.

Handy information about O'Hare International Airport (ORD)

  • ORD's address is 10000 West O'Hare.

  • When it comes to the on-time performance of O'Hare International Airport, 74.85% of flights complete their journey on time.

  • Central Chicago to O'Hare International Airport is approximately 40 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Catching public transport? You can expect a journey time of around 55 minutes.

  • Searching for a handy hotel close to ORD? If you're catching an early flight from O'Hare International Airport to Koh Samui Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Koh Samui Airport (USM)

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late O'Hare International Airport to Koh Samui Airport flight. Book one of these accommodation options near USM instead:

  • Grab a Koh Samui Airport rental car and discover Koh Samui and beyond with your own wheels. Asap car hire, Hertz and Drive Car Hire are top providers to choose from here.

  • To get the best deal, reserve your ride from Koh Samui Airport around four weeks before your trip.

Getting from Koh Samui Airport (USM) to central Koh Samui

  • Koh Samui Airport to central Koh Samui is around 3 kilometres. Journey times will vary depending on traffic and the time of day, so checking a navigation app for real-time estimates is recommended.

When to fly to Koh Samui Airport (USM)

  • July is the busiest month for flights from O'Hare International Airport to Koh Samui Airport. For a quieter experience, head to Koh Samui in February.

Explore more of Thailand

  • Bangkok is just one of the many places in Thailand waiting to be explored after you've experienced Koh Samui. Around 467 kilometres away to the north, well-known attractions include Grand Palace, Wat Arun and Wat Phra Kaew.

  • If you're ready to explore another well-known destination in Thailand, head for Chon Buri, roughly 434 kilometres north of Koh Samui. Wat Ton Son, Forest and Phra Phutthasihing Hall are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.