Cheap Flights from Chicago to Samui International

Compare Chicago to Samui International flight deals

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

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Flight deals from Chicago to Samui International

Looking for a cheap last-minute deal or the best return flight from Chicago to Samui International Airport? If you want to travel next month, return fares start from Rs426,035. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Samui International

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

Chicago to Samui International: Alternative routes

Compare routes from Chicago 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 foundRs197,500
Cheapest month to flyAugust

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

The best price we found for a return flight from Chicago to Samui International is Rs323,870. 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 to Samui International. But we found flights with one stop from Rs323,870.
As of June 2026, there are no flights flying from Chicago to Samui International.
The cheapest month to fly from Chicago to Samui International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Samui International Airport on Tuesday, 1 September 2026.
No airlines currently offer direct flights between Chicago 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.
The cheapest airline that flies to Samui International is Cathay Pacific .

Flying from Chicago to Ko Samui International Airport (USM): What you need to know

  • The timezone in Koh Samui is UTC+7, which is 13 hours ahead of Chicago. Ko Samui International Airport is located in Koh Samui.

  • To ensure you get on your flight from Chicago to USM, leave plenty of time to check in and drop off your luggage. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • If you're travelling during a peak month like July, make your way to the airport even earlier. It's smart to arrive up to four hours before an international flight and two hours ahead of a domestic departure. Check-in and security lines are longer during peak periods like Christmas and New Year.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • ORD is about 27 kilometres from central Chicago. If you're ride-sharing, driving or catching a taxi from the centre, it'll take you 30 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 45 minutes.

  • Want a stress-free start to your break? Stay near Chicago O'Hare International Airport. Whether you're catching an early flight from Chicago to Ko Samui International Airport or want to avoid feeling rushed, these hotels are the answer:

  • 70% of flights that take off from Chicago O'Hare International Airport make it to their destination on time.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • With public transport, you can travel from central Chicago to MDW in around 30 minutes. The airport is roughly 16 kilometres away, and making the journey by car takes approximately 25 minutes.

  • Get a head start on your holiday with an additional night away from home. Before your Chicago to USM flight, unwind in one of these hotels close to Chicago Midway International Airport:

  • Chicago Midway International Airport has an on-time performance rate of 76%. This figure gives an insight into how frequently flights that depart from this airport reach their destination on schedule.

  • MDW is located at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • The trip to RFD from the centre of Chicago is around 2 hours on public transport. If you prefer to travel by car, it'll take you about 1 hour 40 minutes to cover the 145 kilometres or so.

  • Rest a little longer, move a little slower, and still make your Chicago to Ko Samui International Airport flight with time to spare. These hotels near Chicago Rockford International Airport make it a breeze to get to the terminal if you're setting off early:

  • Flights that take off from RFD make it to their destination on schedule 71% of the time.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

About Ko Samui International Airport (USM)

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

  • To get the best deal, book your vehicle around four weeks ahead of your Chicago to Ko Samui International Airport flight.

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

  • From Ko Samui International Airport, central Koh Samui is around 11 kilometres away. It takes about 20 minutes to reach the city centre by car.

  • When travelling on public transport, expect a journey time of roughly 30 minutes.

How to find the cheapest flights from Chicago to Ko Samui International Airport (USM)

  • The cheapest price we've found for a one-way ticket from Chicago to Ko Samui International Airport is Rs197,500. For a return flight on this route, the best price is Rs323,870. Depending on the availability and when you book, these fares may change.

  • Don't wait until the last moment. You're more likely to find cheap flights from Chicago to USM if you book early. Airlines often offer some amazing early bird discounts.

  • Affordable Chicago to Ko Samui International Airport tickets are easier to find if you're not locked into specific dates. Try using the 'Whole month' tool to compare fares across each month and then choose the cheapest day.

  • There's no need to check back in every day to find out if prices have dropped when you create a Price Alert. We'll let you know as soon as a better deal comes up on plane tickets from Chicago to USM.

  • Tailor your trip using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Chicago to Ko Samui International Airport.

The best time to fly from Chicago to Ko Samui International Airport (USM)

  • It's time to figure out your travel dates for your flight from Chicago to Ko Samui International Airport (USM). November is the busiest month to travel to Koh Samui. If you like things a bit more low-key, go in March.

  • Lock in a Chicago to USM plane ticket departing in May if you're eager to experience the city during its warmest month. Expect temperatures in Koh Samui to range from 25ºC to 30ºC.

  • January has temperatures of between 23ºC and 28ºC. Look for cheap tickets from Chicago to Ko Samui International Airport around that time if you like travelling in cooler conditions.

Explore more of Thailand

  • You've visited Koh Samui, now it's time to discover other parts of Thailand. Journey around 129 kilometres south to Nakhon Si Thammarat to tick off its top attractions. From Wat Phra Phrom to Wat Pho Sadet and Wat Yai Chai Mongkol, you've got a jam-packed schedule ahead.

  • Around 257 kilometres southwest of Koh Samui, Phuket is another essential stop in Thailand. Get a taste of what this destination has to offer at V.MarineTour- Phi Phi Islands Day Trip - Private Boat Charters, Sunrise Beach and Paradise Beach.

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