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.

$576 Cheap Flights from Chicago to Siem Reap in 2026

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to Siem Reap

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:00 pm - 10:50 am

ORD

SAI

33h 50m

2 stops

1:00 pm - 8:35 am

SAI

ORD

55h 35m

2 stops

$1,199Multiple Airlines

Sat, Apr 11 - Sun, Apr 26

2:00 pm - 5:50 pm

ORD

SAI

63h 50m

2 stops

2:50 pm - 3:40 pm

SAI

ORD

36h 50m

2 stops

$1,300Multiple Airlines

Thu, Jun 11 - Sat, Jun 27

9:10 pm - 9:00 am

ORD

SAI

47h 50m

2 stops

7:30 pm - 3:40 pm

SAI

ORD

56h 10m

2 stops

$1,443Etihad Airways

Mon, Jul 20 - Mon, Aug 3

8:05 pm - 9:40 am

ORD

SAI

49h 35m

2 stops

10:30 am - 11:59 pm

SAI

ORD

49h 29m

2 stops

$1,507Singapore Airlines

Mon, Jul 20 - Mon, Aug 3

7:20 pm - 12:20 pm

ORD

SAI

29h 00m

2 stops

5:20 pm - 3:05 pm

SAI

ORD

57h 45m

3 stops

$1,546Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

2:00 pm - 10:50 am

ORD

SAI

32h 50m

2 stops

7:30 pm - 3:40 pm

SAI

ORD

32h 10m

2 stops

$1,571Multiple Airlines

Wed, Jun 10 - Fri, Jun 19

7:20 pm - 12:20 pm

ORD

SAI

29h 00m

2 stops

5:20 pm - 3:05 pm

SAI

ORD

57h 45m

3 stops

$1,581Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

6:15 pm - 9:30 pm

ORD

SAI

63h 15m

3 stops

1:05 pm - 3:45 pm

SAI

ORD

38h 40m

2 stops

$1,635Emirates

Sat, Apr 11 - Sun, Apr 26

4:27 pm - 6:45 pm

ORD

SAI

38h 18m

3 stops

7:30 pm - 3:05 pm

SAI

ORD

31h 35m

2 stops

$1,639Multiple Airlines

Sat, Apr 11 - Sun, Apr 26

9:33 am - 9:40 am

ORD

SAI

36h 07m

3 stops

10:30 am - 11:59 pm

SAI

ORD

49h 29m

2 stops

$1,692Singapore Airlines

Thu, Jun 11 - Sat, Jun 27

Etihad Airways flights from Chicago to Siem Reap

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

Etihad Airways

Jul 20

ORD9:10 pmChicago O'Hare Intl

47h 50m

2 stops

SAI9:00 amSiem Reap–Angkor Intl

Aug 3

SAI7:30 pmSiem Reap–Angkor Intl

56h 10m

2 stops

ORD3:40 pmChicago O'Hare Intl

$1,443

Etihad Airways

Apr 11

ORD8:58 amChicago O'Hare Intl

45h 47m

3 stops

SAI6:45 pmSiem Reap–Angkor Intl

Apr 26

SAI9:45 amSiem Reap–Angkor Intl

34h 50m

2 stops

ORD8:35 amChicago O'Hare Intl

$1,713

Singapore Airlines flights from Chicago to Siem Reap

Our best Singapore Airlines deals on Chicago to Siem Reap flight tickets

Singapore Airlines

Jul 20

ORD8:05 pmChicago O'Hare Intl

49h 35m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Aug 3

SAI10:30 amSiem Reap–Angkor Intl

49h 29m

2 stops

ORD11:59 pmChicago O'Hare Intl

$1,507

Singapore Airlines

Jun 11

ORD9:33 amChicago O'Hare Intl

36h 07m

3 stops

SAI9:40 amSiem Reap–Angkor Intl

Jun 27

SAI10:30 amSiem Reap–Angkor Intl

49h 29m

2 stops

ORD11:59 pmChicago O'Hare Intl

$1,692

Singapore Airlines

Jun 11

ORD9:33 amChicago O'Hare Intl

36h 07m

3 stops

SAI9:40 amSiem Reap–Angkor Intl

Jun 19

SAI10:30 amSiem Reap–Angkor Intl

41h 31m

3 stops

ORD4:01 pmChicago O'Hare Intl

$1,882

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/11

1:00 pm-10:50 am

2 stops33h 50m

Siem Reap–Angkor Intl

Sun 4/26

1:00 pm-8:35 am

2 stops55h 35m

$1,199

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 6/11

2:00 pm-5:50 pm

2 stops63h 50m

Siem Reap–Angkor Intl

Sat 6/27

2:50 pm-3:40 pm

2 stops36h 50m

$1,300

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 7/20

9:10 pm-9:00 am

2 stops47h 50m

Siem Reap–Angkor Intl

Mon 8/3

7:30 pm-3:40 pm

2 stops56h 10m

$1,443

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 7/20

8:05 pm-9:40 am

2 stops49h 35m

Siem Reap–Angkor Intl

Mon 8/3

10:30 am-11:59 pm

2 stops49h 29m

$1,507

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/18

7:20 pm-12:20 pm

2 stops29h 00m

Siem Reap–Angkor Intl

Sat 4/25

5:20 pm-3:05 pm

3 stops57h 45m

$1,546

Quickest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 6/10

2:00 pm-10:50 am

2 stops32h 50m

Siem Reap–Angkor Intl

Fri 6/19

7:30 pm-3:40 pm

2 stops32h 10m

$1,571

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/18

7:20 pm-12:20 pm

2 stops29h 00m

Siem Reap–Angkor Intl

Sat 4/25

5:20 pm-3:05 pm

3 stops57h 45m

$1,581

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/11

6:15 pm-9:30 pm

3 stops63h 15m

Siem Reap–Angkor Intl

Sun 4/26

1:05 pm-3:45 pm

2 stops38h 40m

$1,635

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/11

4:27 pm-6:45 pm

3 stops38h 18m

Siem Reap–Angkor Intl

Sun 4/26

7:30 pm-3:05 pm

2 stops31h 35m

$1,639

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 6/11

9:33 am-9:40 am

3 stops36h 07m

Siem Reap–Angkor Intl

Sat 6/27

10:30 am-11:59 pm

2 stops49h 29m

$1,692

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

Fastest flight time	32h 50m
Direct flights	None

The fastest flight from Chicago to Siem Reap takes 32h 50m

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

Search flight deals

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 32h 50m.
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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 4/22

Wed 4/29

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia

Cabin classes

Other Cambodia destinations

Other flights from Chicago

Complete your trip

Feeling lucky

Cabin classes currently available on flights to Siem Reap

First Class to Siem Reap

Business Class to Siem Reap

Cheap flights from Chicago to Siem Reap from $576

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 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Siem Reap

Cheap round-trip flights

Cheap one-way flights

Etihad Airways flights from Chicago to Siem Reap

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

Singapore Airlines flights from Chicago to Siem Reap

Our best Singapore Airlines deals on Chicago to Siem Reap flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago to Siem Reap that are best for you.

See travel insights to Siem Reap from

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

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

Fastest flight time

Direct flights

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

Fly to other destinations from Chicago

According to popular flight searches on momondo this year

Complete your trip to Siem Reap

Explore popular destinations other users love

According to popular flight searches on momondo this year