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.

$711 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.

4:15 pm - 12:15 pm

ORD

SAI

32h 00m

2 stops

7:25 pm - 1:55 pm

SAI

ORD

30h 30m

2 stops

$980Multiple Airlines

Sat, Oct 17 - Sun, Oct 25

2:35 pm - 9:15 am

ORD

SAI

29h 40m

2 stops

7:25 pm - 12:55 pm

SAI

ORD

30h 30m

2 stops

$1,058Multiple Airlines

Sun, Nov 1 - Mon, Nov 30

4:00 pm - 6:55 pm

ORD

SAI

38h 55m

2 stops

7:35 pm - 2:20 pm

SAI

ORD

54h 45m

2 stops

$1,109Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

4:15 pm - 9:00 am

ORD

SAI

28h 45m

2 stops

7:35 pm - 1:55 pm

SAI

ORD

30h 20m

2 stops

$1,153Multiple Airlines

Thu, Oct 15 - Sat, Oct 24

4:15 pm - 12:15 pm

ORD

SAI

32h 00m

2 stops

7:10 pm - 1:55 pm

SAI

ORD

30h 45m

2 stops

$1,209Multiple Airlines

Fri, Oct 9 - Fri, Oct 23

4:15 pm - 9:00 am

ORD

SAI

28h 45m

2 stops

7:35 pm - 1:55 pm

SAI

ORD

30h 20m

2 stops

$1,281Multiple Airlines

Thu, Oct 15 - Sat, Oct 24

8:35 pm - 9:30 pm

ORD

SAI

36h 55m

2 stops

12:55 pm - 3:45 pm

SAI

ORD

38h 50m

2 stops

$1,299Emirates

Sun, Sep 6 - Mon, Sep 14

6:30 pm - 9:40 am

ORD

SAI

51h 10m

2 stops

10:30 am - 11:00 am

SAI

ORD

36h 30m

2 stops

$1,317Lufthansa

Thu, Sep 3 - Mon, Sep 14

8:35 pm - 9:30 pm

ORD

SAI

36h 55m

2 stops

12:55 pm - 3:45 pm

SAI

ORD

62h 50m

2 stops

$1,333Emirates

Sun, Sep 6 - Fri, Sep 11

8:35 pm - 12:15 pm

ORD

SAI

27h 40m

2 stops

12:55 pm - 3:45 pm

SAI

ORD

62h 50m

2 stops

$1,334Emirates

Mon, Sep 7 - Fri, Sep 11

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Emirates flights from Chicago to Region of Siem Reap

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

Emirates

Sep 6

ORD8:35 pmChicago O'Hare Intl

36h 55m

2 stops

SAI9:30 pmSiem Reap–Angkor Intl

Sep 14

SAI12:55 pmSiem Reap–Angkor Intl

38h 50m

2 stops

ORD3:45 pmChicago O'Hare Intl

$1,299

Emirates

Sep 6

ORD8:35 pmChicago O'Hare Intl

36h 55m

2 stops

SAI9:30 pmSiem Reap–Angkor Intl

Sep 11

SAI12:55 pmSiem Reap–Angkor Intl

62h 50m

2 stops

ORD3:45 pmChicago O'Hare Intl

$1,333

Emirates

Sep 7

ORD8:35 pmChicago O'Hare Intl

27h 40m

2 stops

SAI12:15 pmSiem Reap–Angkor Intl

Sep 11

SAI12:55 pmSiem Reap–Angkor Intl

62h 50m

2 stops

ORD3:45 pmChicago O'Hare Intl

$1,334

Lufthansa flights from Chicago to Region of Siem Reap

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

Lufthansa

Sep 3

ORD6:30 pmChicago O'Hare Intl

51h 10m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Sep 14

SAI10:30 amSiem Reap–Angkor Intl

36h 30m

2 stops

ORD11:00 amChicago O'Hare Intl

$1,317

Lufthansa

Dec 28

ORD9:50 pmChicago O'Hare Intl

31h 55m

3 stops

SAI6:45 pmSiem Reap–Angkor Intl

Jan 6

SAI4:45 pmSiem Reap–Angkor Intl

35h 35m

2 stops

ORD3:20 pmChicago O'Hare Intl

$1,766

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 10/17

4:15 pm-12:15 pm

2 stops32h 00m

Siem Reap–Angkor Intl

Sun 10/25

7:25 pm-1:55 pm

2 stops30h 30m

$980

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 11/1

2:35 pm-9:15 am

2 stops29h 40m

Siem Reap–Angkor Intl

Mon 11/30

7:25 pm-12:55 pm

2 stops30h 30m

$1,058

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 9/5

4:00 pm-6:55 pm

2 stops38h 55m

Siem Reap–Angkor Intl

Sat 9/12

7:35 pm-2:20 pm

2 stops54h 45m

$1,109

Quickest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/15

4:15 pm-9:00 am

2 stops28h 45m

Siem Reap–Angkor Intl

Sat 10/24

7:35 pm-1:55 pm

2 stops30h 20m

$1,153

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 10/9

4:15 pm-12:15 pm

2 stops32h 00m

Siem Reap–Angkor Intl

Fri 10/23

7:10 pm-1:55 pm

2 stops30h 45m

$1,209

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/15

4:15 pm-9:00 am

2 stops28h 45m

Siem Reap–Angkor Intl

Sat 10/24

7:35 pm-1:55 pm

2 stops30h 20m

$1,281

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 9/6

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Mon 9/14

12:55 pm-3:45 pm

2 stops38h 50m

$1,299

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 9/3

6:30 pm-9:40 am

2 stops51h 10m

Siem Reap–Angkor Intl

Mon 9/14

10:30 am-11:00 am

2 stops36h 30m

$1,317

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 9/6

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Fri 9/11

12:55 pm-3:45 pm

2 stops62h 50m

$1,333

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 9/7

8:35 pm-12:15 pm

2 stops27h 40m

Siem Reap–Angkor Intl

Fri 9/11

12:55 pm-3:45 pm

2 stops62h 50m

$1,334

Flights are sorted by cheapest round-trip flights first.

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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?

ANA 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

Fastest flight time	29h 40m
Direct flights	None

The fastest flight from Chicago to Region of Siem Reap takes 29h 40m

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.

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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 $711

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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Emirates flights from Chicago to Region of Siem Reap

Our best Emirates 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

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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

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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

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According to popular flight searches on momondo this year

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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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