When did momondo last update prices for flights from Chicago to Siem Reap?

Prices for flights from Chicago to Siem Reap were last updated today.

How old do you have to be to fly from Chicago to Siem Reap?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$512 Cheap Flights from Chicago to Siem Reap in 2026

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.

2:00 pm - 5:50 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

39h 50m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

3:10 pm - 8:35 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

29h 25m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,078Etihad Airways

Thu, Sep 17 - Thu, Sep 24

10:35 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

46h 20m2 stops Frankfurt am Main Singapore Changi

4:50 pm - 6:25 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

38h 35m2 stops Singapore Changi Munich Franz Josef Strauss

$1,311Lufthansa

Mon, Dec 7 - Wed, Jan 13

8:20 pm - 12:40 pmORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

51h 20m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

9:55 am - 3:00 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

42h 05m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,314Etihad Airways

Tue, Dec 8 - Mon, Jan 11

10:35 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

46h 20m2 stops Frankfurt am Main Singapore Changi

4:50 pm - 6:25 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

62h 35m2 stops Singapore Changi Munich Franz Josef Strauss

$1,322Lufthansa

Mon, Dec 7 - Tue, Jan 12

10:35 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

46h 20m2 stops Frankfurt am Main Singapore Changi

4:50 pm - 1:10 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

33h 20m2 stops Singapore Changi Frankfurt am Main

$1,333Lufthansa

Mon, Dec 7 - Thu, Jan 14

2:35 pm - 9:15 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

29h 40m2 stops Hong Kong Intl Bangkok Suvarnabhumi

7:25 pm - 12:55 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

30h 30m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,336Multiple Airlines

Mon, Dec 7 - Mon, Jan 11

9:50 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

47h 05m2 stops Munich Franz Josef Strauss Singapore Changi

4:50 pm - 6:25 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

38h 35m2 stops Singapore Changi Munich Franz Josef Strauss

$1,345Lufthansa

Sun, Dec 6 - Wed, Jan 13

9:50 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

47h 05m2 stops Munich Franz Josef Strauss Singapore Changi

4:50 pm - 6:25 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

62h 35m2 stops Singapore Changi Munich Franz Josef Strauss

$1,356Lufthansa

Sun, Dec 6 - Tue, Jan 12

9:50 pm - 9:55 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

47h 05m2 stops Munich Franz Josef Strauss Singapore Changi

4:50 pm - 1:10 pmSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

33h 20m2 stops Singapore Changi Frankfurt am Main

$1,367Lufthansa

Sun, Dec 6 - Thu, Jan 14

1:10 pm - 9:15 amORD Chicago O'Hare Intl-SAI Siem Reap–Angkor Intl

31h 05m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

1:20 pm - 7:55 amSAI Siem Reap–Angkor Intl-ORD Chicago O'Hare Intl

31h 35m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,451Etihad Airways

Sun, Dec 6 - Mon, Jan 11

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Etihad Airways flights from Chicago to Region of Siem Reap

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

Etihad Airways

Sep 17

ORD2:00 pmChicago O'Hare Intl

39h 50m

2 stops

SAI5:50 pmSiem Reap–Angkor Intl

Sep 24

SAI3:10 pmSiem Reap–Angkor Intl

29h 25m

2 stops

ORD8:35 amChicago O'Hare Intl

$1,078

Etihad Airways

Dec 8

ORD8:20 pmChicago O'Hare Intl

51h 20m

2 stops

SAI12:40 pmSiem Reap–Angkor Intl

Jan 11

SAI9:55 amSiem Reap–Angkor Intl

42h 05m

2 stops

ORD3:00 pmChicago O'Hare Intl

$1,314

Etihad Airways

Dec 6

ORD1:10 pmChicago O'Hare Intl

31h 05m

2 stops

SAI9:15 amSiem Reap–Angkor Intl

Jan 11

SAI1:20 pmSiem Reap–Angkor Intl

31h 35m

2 stops

ORD7:55 amChicago O'Hare Intl

$1,451

Lufthansa flights from Chicago to Region of Siem Reap

Our best Lufthansa deals on Chicago to Region of Siem Reap flight tickets

Lufthansa

Dec 7

ORD10:35 pmChicago O'Hare Intl

46h 20m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 13

SAI4:50 pmSiem Reap–Angkor Intl

38h 35m

2 stops

ORD6:25 pmChicago O'Hare Intl

$1,311

Lufthansa

Dec 7

ORD10:35 pmChicago O'Hare Intl

46h 20m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 12

SAI4:50 pmSiem Reap–Angkor Intl

62h 35m

2 stops

ORD6:25 pmChicago O'Hare Intl

$1,322

Lufthansa

Dec 7

ORD10:35 pmChicago O'Hare Intl

46h 20m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 14

SAI4:50 pmSiem Reap–Angkor Intl

33h 20m

2 stops

ORD1:10 pmChicago O'Hare Intl

$1,333

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

Thu 9/17

2:00 pm-5:50 pm

2 stops39h 50m

Siem Reap–Angkor Intl

Thu 9/24

3:10 pm-8:35 am

2 stops29h 25m

$1,078

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Mon 12/7

10:35 pm-9:55 am

2 stops46h 20m

Siem Reap–Angkor Intl

Wed 1/13

4:50 pm-6:25 pm

2 stops38h 35m

$1,311

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Tue 12/8

8:20 pm-12:40 pm

2 stops51h 20m

Siem Reap–Angkor Intl

Mon 1/11

9:55 am-3:00 pm

2 stops42h 05m

$1,314

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Mon 12/7

10:35 pm-9:55 am

2 stops46h 20m

Siem Reap–Angkor Intl

Tue 1/12

4:50 pm-6:25 pm

2 stops62h 35m

$1,322

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Mon 12/7

10:35 pm-9:55 am

2 stops46h 20m

Siem Reap–Angkor Intl

Thu 1/14

4:50 pm-1:10 pm

2 stops33h 20m

$1,333

Quickest round-trip

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Mon 12/7

2:35 pm-9:15 am

2 stops29h 40m

Siem Reap–Angkor Intl

Mon 1/11

7:25 pm-12:55 pm

2 stops30h 30m

$1,336

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Sun 12/6

9:50 pm-9:55 am

2 stops47h 05m

Siem Reap–Angkor Intl

Wed 1/13

4:50 pm-6:25 pm

2 stops38h 35m

$1,345

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Sun 12/6

9:50 pm-9:55 am

2 stops47h 05m

Siem Reap–Angkor Intl

Tue 1/12

4:50 pm-6:25 pm

2 stops62h 35m

$1,356

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Sun 12/6

9:50 pm-9:55 am

2 stops47h 05m

Siem Reap–Angkor Intl

Thu 1/14

4:50 pm-1:10 pm

2 stops33h 20m

$1,367

ChicagoSiem Reap

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

ORDSAI

Chicago O'Hare Intl

Sun 12/6

1:10 pm-9:15 am

2 stops31h 05m

Siem Reap–Angkor Intl

Mon 1/11

1:20 pm-7:55 am

2 stops31h 35m

$1,451

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 Region of 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?

Etihad Airways is the most popular carrier operating from Chicago to Siem Reap

Cheap Chicago to Region of Siem Reap flight deals and tips

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

Best Price Found	$512
Fastest flight time	39h 50m
Direct flights	None

The best one-way flight to Region of Siem Reap from Chicago in the past 72 hours is $512. The best round-trip flight deal from Chicago to Region of Siem Reap found on momondo in the last 72 hours is $1,078.

The fastest flight from Chicago to Region of Siem Reap takes 39h 50m

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

Search flight deals

Frequently asked questions about flying from Chicago to Siem Reap

When did momondo last update prices for flights from Chicago to Siem Reap?
Prices for flights from Chicago to Siem Reap were last updated today.
How old do you have to be to fly from Chicago to Siem Reap?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Siem Reap from Chicago.

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

Flights from Chicago to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Siem Reap from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Chicago to Siem Reap flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Chicago to Siem Reap from $512

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 11/3. 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 Region of Siem Reap

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

Lufthansa flights from Chicago to Region of Siem Reap

Our best Lufthansa deals on Chicago to Region of Siem Reap flight tickets

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

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

Cheap Chicago to Region of Siem Reap flight deals and tips

Best Price Found

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Direct flights

Frequently asked questions about flying from Chicago to Siem Reap

Why use momondo?

An easier way to manage your Region of 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 Siem Reap

Popular cities in Siem Reap

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

Chicago flight routes

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

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