How do I get Price Alerts for flights from Chicago to Siem Reap?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago from Siem Reap . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Chicago to Siem Reap with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

$560 Cheap Flights from Chicago to Siem Reap in 2026

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Find the cheapest flights from Chicago to Siem Reap

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:25 am - 9:50 am

ORD

SAI

38h 25m

2 stops

4:45 pm - 7:55 pm

SAI

ORD

40h 10m

2 stops

$1,094United Airlines

Mon, Feb 23 - Tue, Mar 3

12:30 am - 5:10 pm

ORD

SAI

28h 40m

2 stops

7:40 pm - 9:00 pm

SAI

ORD

61h 20m

2 stops

$1,201Multiple Airlines

Fri, Apr 10 - Sun, Apr 26

11:30 pm - 4:10 pm

ORD

SAI

27h 40m

3 stops

9:40 pm - 7:35 pm

SAI

ORD

34h 55m

2 stops

$1,217Multiple Airlines

Tue, Feb 24 - Mon, Mar 2

12:30 am - 5:10 pm

ORD

SAI

52h 40m

2 stops

7:40 pm - 9:00 pm

SAI

ORD

37h 20m

2 stops

$1,238Multiple Airlines

Fri, Apr 10 - Sun, Apr 26

12:30 am - 3:10 pm

ORD

SAI

26h 40m

2 stops

7:40 pm - 9:00 pm

SAI

ORD

37h 20m

2 stops

$1,244Multiple Airlines

Fri, Apr 10 - Sun, Apr 26

12:30 am - 4:25 pm

ORD

SAI

51h 55m

3 stops

7:40 pm - 9:00 pm

SAI

ORD

37h 20m

2 stops

$1,248Multiple Airlines

Fri, Apr 10 - Sun, Apr 26

11:30 pm - 6:40 pm

ORD

SAI

30h 10m

2 stops

9:20 am - 7:35 pm

SAI

ORD

23h 15m

2 stops

$1,249Multiple Airlines

Tue, Feb 24 - Sun, Mar 1

11:30 pm - 6:40 pm

ORD

SAI

30h 10m

2 stops

9:20 am - 7:35 pm

SAI

ORD

23h 15m

2 stops

$1,337Multiple Airlines

Mon, Feb 23 - Sun, Mar 1

11:30 pm - 4:10 pm

ORD

SAI

27h 40m

3 stops

10:00 am - 7:35 pm

SAI

ORD

22h 35m

2 stops

$1,430Multiple Airlines

Tue, Feb 24 - Tue, Mar 3

11:30 pm - 1:15 pm

ORD

SAI

24h 45m

2 stops

9:20 am - 7:35 pm

SAI

ORD

23h 15m

2 stops

$1,438Multiple Airlines

Wed, Feb 25 - Sun, Mar 1

Singapore Airlines flights from Chicago to Siem Reap

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

Singapore Airlines

Feb 24

ORD6:04 amChicago O'Hare Intl

38h 46m

3 stops

SAI9:50 amSiem Reap–Angkor Intl

Mar 3

SAI10:45 amSiem Reap–Angkor Intl

49h 14m

3 stops

ORD10:59 pmChicago O'Hare Intl

$1,911

Singapore Airlines

Feb 24

ORD6:04 amChicago O'Hare Intl

44h 51m

3 stops

SAI3:55 pmSiem Reap–Angkor Intl

Mar 2

SAI10:45 amSiem Reap–Angkor Intl

49h 14m

3 stops

ORD10:59 pmChicago O'Hare Intl

$1,935

Singapore Airlines

Mar 13

ORD6:45 amChicago O'Hare Intl

45h 10m

3 stops

SAI3:55 pmSiem Reap–Angkor Intl

Mar 22

SAI10:45 amSiem Reap–Angkor Intl

48h 11m

3 stops

ORD10:56 pmChicago O'Hare Intl

$2,137

Etihad Airways flights from Chicago to Siem Reap

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

Etihad Airways

Feb 10

ORD7:40 amChicago O'Hare Intl

40h 00m

3 stops

SAI12:40 pmSiem Reap–Angkor Intl

Mar 5

SAI7:25 pmSiem Reap–Angkor Intl

49h 10m

2 stops

ORD7:35 amChicago O'Hare Intl

$9,468

Etihad Airways

Feb 10

ORD7:40 amChicago O'Hare Intl

36h 35m

3 stops

SAI9:15 amSiem Reap–Angkor Intl

Mar 5

SAI1:25 pmSiem Reap–Angkor Intl

55h 10m

2 stops

ORD7:35 amChicago O'Hare Intl

$10,548

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 2/23

6:25 am-9:50 am

2 stops38h 25m

Siem Reap–Angkor Intl

Tue 3/3

4:45 pm-7:55 pm

2 stops40h 10m

$1,094

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 4/10

12:30 am-5:10 pm

2 stops28h 40m

Siem Reap–Angkor Intl

Sun 4/26

7:40 pm-9:00 pm

2 stops61h 20m

$1,201

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 2/24

11:30 pm-4:10 pm

3 stops27h 40m

Siem Reap–Angkor Intl

Mon 3/2

9:40 pm-7:35 pm

2 stops34h 55m

$1,217

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 4/10

12:30 am-5:10 pm

2 stops52h 40m

Siem Reap–Angkor Intl

Sun 4/26

7:40 pm-9:00 pm

2 stops37h 20m

$1,238

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 4/10

12:30 am-3:10 pm

2 stops26h 40m

Siem Reap–Angkor Intl

Sun 4/26

7:40 pm-9:00 pm

2 stops37h 20m

$1,244

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 4/10

12:30 am-4:25 pm

3 stops51h 55m

Siem Reap–Angkor Intl

Sun 4/26

7:40 pm-9:00 pm

2 stops37h 20m

$1,248

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 2/24

11:30 pm-6:40 pm

2 stops30h 10m

Siem Reap–Angkor Intl

Sun 3/1

9:20 am-7:35 pm

2 stops23h 15m

$1,249

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 2/23

11:30 pm-6:40 pm

2 stops30h 10m

Siem Reap–Angkor Intl

Sun 3/1

9:20 am-7:35 pm

2 stops23h 15m

$1,337

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 2/24

11:30 pm-4:10 pm

3 stops27h 40m

Siem Reap–Angkor Intl

Tue 3/3

10:00 am-7:35 pm

2 stops22h 35m

$1,430

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 2/25

11:30 pm-1:15 pm

2 stops24h 45m

Siem Reap–Angkor Intl

Sun 3/1

9:20 am-7:35 pm

2 stops23h 15m

$1,438

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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	27h 40m
Direct flights	None

The fastest flight from Chicago to Siem Reap takes 27h 40m

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 27h 40m.
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.

How do I get Price Alerts for flights from Chicago to Siem Reap?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago from Siem Reap. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Chicago to Siem Reap with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

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Cheap flights from Chicago to Siem Reap from $560

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 3/5. 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

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Singapore Airlines flights from Chicago to Siem Reap

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

Etihad Airways flights from Chicago to Siem Reap

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

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

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

How far is Chicago to Siem Reap–Angkor Intl by plane?

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

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

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

How do I get Price Alerts for flights from Chicago to Siem Reap?

How can I save money on flights from Chicago to Siem Reap with momondo?

How does momondo find its flight prices?

Why use momondo?

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

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

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

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

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

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According to popular flight searches on momondo this year