When did momondo last update prices for flights from Chicago to Siem Reap–Angkor Intl Airport?

Prices for flights from Chicago to Siem Reap–Angkor Intl Airport refresh daily.

How old do you have to be to fly from Chicago to Siem Reap–Angkor Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Siem Reap–Angkor Intl Airport.

What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$647 Cheap Flights from Chicago to Siem Reap in 2026/27

Find the cheapest flights from Chicago to Siem Reap

Round-trip

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:10 pm - 9:15 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

30h 05m2 stops Hong Kong Intl Bangkok Suvarnabhumi

7:25 pm - 12:30 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

30h 05m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$967Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

2:10 pm - 9:15 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

30h 05m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:40 am - 2:20 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

40h 40m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,023Multiple Airlines

Sun, Jan 10 - Sun, Jul 4

2:10 pm - 9:15 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

30h 05m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:55 am - 12:30 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

39h 35m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,061Multiple Airlines

Sun, Feb 21 - Sun, Feb 28

1:10 pm - 3:35 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

37h 25m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

7:25 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

49h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,135Etihad Airways

Wed, Nov 4 - Tue, Nov 10

1:10 pm - 12:05 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

33h 55m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

12:45 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

56h 10m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,162Etihad Airways

Sun, Nov 1 - Mon, Nov 9

1:10 pm - 3:35 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

37h 25m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

7:25 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

49h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,185Etihad Airways

Sun, Nov 1 - Tue, Nov 10

1:10 pm - 3:35 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

37h 25m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

9:55 am - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

35h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,202Etihad Airways

Wed, Nov 4 - Wed, Nov 11

1:10 pm - 3:35 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

37h 25m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

7:30 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

49h 25m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,206Etihad Airways

Wed, Nov 4 - Thu, Nov 12

11:30 pm - 6:45 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

30h 15m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

9:55 am - 7:35 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

22h 40m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,230Multiple Airlines

Sun, Feb 21 - Sun, Feb 28

1:10 pm - 12:05 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

33h 55m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

12:45 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

56h 10m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,231Etihad Airways

Sun, Nov 1 - Sun, Nov 8

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Etihad Airways flights from Chicago to Siem Reap

Our best Etihad Airways deals on Chicago to Siem Reap flight tickets

Etihad Airways

Nov 4

ORD1:10 pmChicago O'Hare Intl

37h 25m

2 stops

SAI3:35 pmSiem Reap–Angkor Intl

Nov 10

SAI7:25 pmSiem Reap–Angkor Intl

49h 30m

2 stops

ORD7:55 amChicago O'Hare Intl

$1,135

Etihad Airways

Nov 1

ORD1:10 pmChicago O'Hare Intl

33h 55m

2 stops

SAI12:05 pmSiem Reap–Angkor Intl

Nov 9

SAI12:45 pmSiem Reap–Angkor Intl

56h 10m

2 stops

ORD7:55 amChicago O'Hare Intl

$1,162

Etihad Airways

Nov 1

ORD1:10 pmChicago O'Hare Intl

37h 25m

2 stops

SAI3:35 pmSiem Reap–Angkor Intl

Nov 10

SAI7:25 pmSiem Reap–Angkor Intl

49h 30m

2 stops

ORD7:55 amChicago O'Hare Intl

$1,185

Emirates flights from Chicago to Siem Reap

Our best Emirates deals on Chicago to Siem Reap flight tickets

Emirates

Nov 3

ORD7:45 pmChicago O'Hare Intl

36h 25m

2 stops

SAI9:10 pmSiem Reap–Angkor Intl

Nov 10

SAI11:50 pmSiem Reap–Angkor Intl

52h 05m

2 stops

ORD2:55 pmChicago O'Hare Intl

$1,244

Emirates

Nov 3

ORD7:45 pmChicago O'Hare Intl

36h 25m

2 stops

SAI9:10 pmSiem Reap–Angkor Intl

Nov 7

SAI11:50 pmSiem Reap–Angkor Intl

52h 05m

2 stops

ORD2:55 pmChicago O'Hare Intl

$1,278

Emirates

Nov 3

ORD7:45 pmChicago O'Hare Intl

36h 25m

2 stops

SAI9:10 pmSiem Reap–Angkor Intl

Nov 9

SAI1:20 pmSiem Reap–Angkor Intl

38h 35m

2 stops

ORD2:55 pmChicago O'Hare Intl

$1,299

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Mon 11/2

2:10 pm-9:15 am

2 stops30h 05m

Siem Reap–Angkor Intl

Mon 11/9

7:25 pm-12:30 pm

2 stops30h 05m

$967

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 1/10

2:10 pm-9:15 am

2 stops30h 05m

Siem Reap–Angkor Intl

Sun 7/4

9:40 am-2:20 pm

2 stops40h 40m

$1,023

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 2/21

2:10 pm-9:15 am

2 stops30h 05m

Siem Reap–Angkor Intl

Sun 2/28

9:55 am-12:30 pm

2 stops39h 35m

$1,061

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Wed 11/4

1:10 pm-3:35 pm

2 stops37h 25m

Siem Reap–Angkor Intl

Tue 11/10

7:25 pm-7:55 am

2 stops49h 30m

$1,135

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 11/1

1:10 pm-12:05 pm

2 stops33h 55m

Siem Reap–Angkor Intl

Mon 11/9

12:45 pm-7:55 am

2 stops56h 10m

$1,162

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 11/1

1:10 pm-3:35 pm

2 stops37h 25m

Siem Reap–Angkor Intl

Tue 11/10

7:25 pm-7:55 am

2 stops49h 30m

$1,185

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Wed 11/4

1:10 pm-3:35 pm

2 stops37h 25m

Siem Reap–Angkor Intl

Wed 11/11

9:55 am-7:55 am

2 stops35h 00m

$1,202

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Wed 11/4

1:10 pm-3:35 pm

2 stops37h 25m

Siem Reap–Angkor Intl

Thu 11/12

7:30 pm-7:55 am

2 stops49h 25m

$1,206

Quickest round-trip

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 2/21

11:30 pm-6:45 pm

2 stops30h 15m

Siem Reap–Angkor Intl

Sun 2/28

9:55 am-7:35 pm

2 stops22h 40m

$1,230

ChicagoSiem Reap

ORD Chicago O'Hare Intl - SAI Siem Reap–Angkor Intl

ORDSAI

Chicago O'Hare Intl

Sun 11/1

1:10 pm-12:05 pm

2 stops33h 55m

Siem Reap–Angkor Intl

Sun 11/8

12:45 pm-7:55 am

2 stops56h 10m

$1,231

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Chicago to Siem Reap–Angkor Intl?

Qatar Airways is the most popular carrier operating from Chicago to Siem Reap–Angkor Intl

When to book flights from Chicago to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Siem Reap (CHI to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Siem Reap

Best Price Found	$647
Fastest flight time	30h 05m
Direct flights	None

The best one-way flight to Siem Reap from Chicago in the past 72 hours is $647. The best round-trip flight deal from Chicago to Siem Reap found on momondo in the last 72 hours is $967.

The fastest flight from Chicago to Siem Reap takes 30h 05m

There are no direct flights from Chicago to Siem Reap. There are no popular flight routes from Chicago to Siem Reap.

Search flight deals

Frequently asked questions about flying from Chicago to Siem Reap

How far is Chicago to Siem Reap–Angkor Intl by plane?
The distance between Chicago and Siem Reap–Angkor Intl is about 8545.2 mi. A reasonable flight in good conditions will take 30h 05m.
When did momondo last update prices for flights from Chicago to Siem Reap–Angkor Intl Airport?
Prices for flights from Chicago to Siem Reap–Angkor Intl Airport refresh daily.
How old do you have to be to fly from Chicago to Siem Reap–Angkor Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Siem Reap?

It is quick and easy to find Chicago to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

Can I find flights from Chicago to Siem Reap with flexible booking policies on momondo?

momondo does allow users to show only those flights to Siem Reap from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Siem Reap?

momondo helps you find the best flight between Chicago and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Siem Reap right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Siem Reap from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Chicago to Siem Reap from $647

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Siem Reap departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Etihad Airways flights from Chicago to Siem Reap

Our best Etihad Airways deals on Chicago to Siem Reap flight tickets

Emirates flights from Chicago to Siem Reap

Our best Emirates deals on Chicago to Siem Reap flight tickets

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How to get the cheapest flight ticket from Chicago to Siem Reap

What is the cheapest airline that flies from Chicago to Siem Reap–Angkor Intl?

When to book flights from Chicago to Siem Reap

Cheap Chicago to Siem Reap (CHI to SAI) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Chicago to Siem Reap

Why use momondo?

An easier way to manage your Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Cambodia

Cabin classes currently available on flights to Siem Reap

List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

Popular cities in Cambodia

Popular flights according to clicks in the last 7 days on momondo

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