Flights from Chicago to Koh Samui from $1,723

Compare All CHI to USM Flights

Prices are per person for one-way travel. Click “Book” to complete your reservation on the partner site.

1 of 1 flight

Airline	Schedule	Stops	Duration	Price
QR QR · 726	19:20 CHI 11:30 USM	0 stop(s)	64h 10m	$1,723 Best	Book →

Airport Information

Key details about departure and arrival airports for this route

USM

Samui International Airport

City: Na Thon (Ko Samui Island)
Country: TH
Type: Large Airport
Elevation: 64 ft

USM Airport Guide →

Tips for Chicago to Koh Samui Flights

Save money and travel smarter with these route-specific tips

📅 When to Book

Book CHI–USM flights 6–8 weeks in advance for the best prices. Last-minute fares are typically 40–60% more expensive on this route.

💰 Price Trends

The average fare is $1,723, but prices as low as $1,723 are available.

✈ Direct vs Connecting

No direct flights currently listed. Consider flexible dates or nearby airports for better connections.

📍 Flexible Dates

Flying midweek (Tuesday–Thursday) on CHI–USM is typically 15–30% cheaper. Use our price comparison to spot the best day to fly.

Top Hotels in Koh Samui

Book accommodation at your destination — top-rated stays near USM airport

Glory Moon Resort

Koh Samui, 4★

10.0 Check Price

Pano Samui Beachfront Villa 3

Koh Samui

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2BR Emerald Villa – Private Pool & Sea View B30-1

Koh Samui

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Bleu Oasis House - 2BR - Smart TV

Koh Samui

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Cozy Boutique Bungalow No. 2

Frequently Asked Questions

Everything you need to know about flying CHI to USM

What is the cheapest flight from Chicago to Koh Samui?

The cheapest flight from Chicago (CHI) to Koh Samui (USM) currently starts at $1,723 with QR. Prices are updated regularly and may vary by date and availability.

How many airlines fly from CHI to USM?

We found 1 airline(s) operating on the CHI–USM route, including QR.

Are there direct flights from Chicago to Koh Samui?

No direct flights are currently listed on this route. All available options involve at least one stop. Consider flexible dates or nearby airports for better connection options.

What is the average flight price on this route?

The average flight price from Chicago to Koh Samui is approximately $1,723. Prices range from $1,723 to $1,723 depending on airline, time, and class.

How long is the flight from CHI to USM?

The average flight duration from Chicago to Koh Samui is approximately 64 hours 10 minutes. Direct flights are typically shorter than connecting options.

What is the baggage allowance on CHI–USM flights?

Baggage allowance varies by airline and fare class. Most economy fares on this route include 1 carry-on (7–8 kg) and 1 checked bag (20–23 kg). Always confirm baggage rules on the airline's site at booking — low-cost carriers may charge for checked bags.