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Cheap flights from Chicago O'Hare Intl Airport to Siem Reap from $1,004

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 O'Hare Intl Airport to Siem Reap departing on 5/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Chicago O'Hare Intl Airport to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:15 pm - 6:55 pm
ORD
-
SAI
38h 40m
2 stops
Multiple Airlines Logo
7:25 pm - 12:55 pm
SAI
-
ORD
54h 30m
2 stops
$1,077Multiple Airlines
Thu, Oct 22 - Sat, Nov 7
Multiple Airlines Logo
4:15 pm - 9:00 am
ORD
-
SAI
28h 45m
2 stops
Multiple Airlines Logo
7:25 pm - 12:55 pm
SAI
-
ORD
30h 30m
2 stops
$1,081Multiple Airlines
Thu, Oct 22 - Sat, Nov 7
Emirates Logo
8:45 pm - 9:10 pm
ORD
-
SAI
36h 25m
2 stops
Emirates Logo
11:50 pm - 2:55 pm
SAI
-
ORD
28h 05m
2 stops
$1,298Emirates
Sun, Oct 25 - Tue, Nov 10
Multiple Airlines Logo
12:30 am - 12:15 pm
ORD
-
SAI
47h 45m
2 stops
Multiple Airlines Logo
9:30 pm - 7:35 pm
SAI
-
ORD
59h 05m
2 stops
$1,311Multiple Airlines
Wed, Oct 21 - Sat, Nov 7
Emirates Logo
8:35 pm - 9:30 pm
ORD
-
SAI
36h 55m
2 stops
Emirates Logo
1:20 pm - 3:45 pm
SAI
-
ORD
38h 25m
2 stops
$1,333Emirates
Sun, Oct 11 - Tue, Oct 27
Emirates Logo
8:45 pm - 12:40 pm
ORD
-
SAI
27h 55m
2 stops
Emirates Logo
1:20 pm - 2:55 pm
SAI
-
ORD
38h 35m
2 stops
$1,334Emirates
Mon, Oct 26 - Wed, Nov 11
Emirates Logo
8:35 pm - 12:40 pm
ORD
-
SAI
28h 05m
2 stops
Emirates Logo
1:20 pm - 2:55 pm
SAI
-
ORD
38h 35m
2 stops
$1,349Emirates
Sat, Oct 24 - Mon, Nov 9
Emirates Logo
8:35 pm - 12:40 pm
ORD
-
SAI
52h 05m
2 stops
Emirates Logo
1:20 pm - 2:55 pm
SAI
-
ORD
38h 35m
2 stops
$1,385Emirates
Fri, Oct 23 - Mon, Nov 9
Emirates Logo
8:35 pm - 9:30 pm
ORD
-
SAI
36h 55m
2 stops
Emirates Logo
11:50 pm - 2:55 pm
SAI
-
ORD
28h 05m
2 stops
$1,398Emirates
Thu, Oct 22 - Sat, Nov 7
Emirates Logo
8:35 pm - 9:30 pm
ORD
-
SAI
36h 55m
2 stops
Emirates Logo
11:50 pm - 3:55 pm
SAI
-
ORD
52h 05m
2 stops
$1,399Emirates
Thu, Oct 15 - Sat, Oct 31

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Emirates flights from Chicago O'Hare Intl Airport to Region of Siem Reap

Our best Emirates deals on Chicago O'Hare Intl Airport to Region of Siem Reap flight tickets
Emirates
Oct 25
ORD8:45 pmChicago O'Hare Intl
36h 25m
2 stops
SAI9:10 pmSiem Reap–Angkor Intl
Nov 10
SAI11:50 pmSiem Reap–Angkor Intl
28h 05m
2 stops
ORD2:55 pmChicago O'Hare Intl
$1,298
Emirates
Oct 11
ORD8:35 pmChicago O'Hare Intl
36h 55m
2 stops
SAI9:30 pmSiem Reap–Angkor Intl
Oct 27
SAI1:20 pmSiem Reap–Angkor Intl
38h 25m
2 stops
ORD3:45 pmChicago O'Hare Intl
$1,333
Emirates
Oct 26
ORD8:45 pmChicago O'Hare Intl
27h 55m
2 stops
SAI12:40 pmSiem Reap–Angkor Intl
Nov 11
SAI1:20 pmSiem Reap–Angkor Intl
38h 35m
2 stops
ORD2:55 pmChicago O'Hare Intl
$1,334

Qatar Airways flights from Chicago O'Hare Intl Airport to Region of Siem Reap

Our best Qatar Airways deals on Chicago O'Hare Intl Airport to Region of Siem Reap flight tickets
Qatar Airways
May 26
ORD4:29 pmChicago O'Hare Intl
52h 36m
3 stops
SAI9:05 amSiem Reap–Angkor Intl
Jun 9
SAI7:45 pmSiem Reap–Angkor Intl
33h 05m
2 stops
ORD4:50 pmChicago O'Hare Intl
$1,721
Qatar Airways
Jun 16
ORD7:20 pmChicago O'Hare Intl
28h 55m
2 stops
SAI12:15 pmSiem Reap–Angkor Intl
Jul 1
SAI7:30 pmSiem Reap–Angkor Intl
31h 35m
2 stops
ORD3:05 pmChicago O'Hare Intl
$1,774
Qatar Airways
Jun 17
ORD7:20 pmChicago O'Hare Intl
28h 55m
2 stops
SAI12:15 pmSiem Reap–Angkor Intl
Jul 1
SAI7:30 pmSiem Reap–Angkor Intl
31h 35m
2 stops
ORD3:05 pmChicago O'Hare Intl
$1,787

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Region of Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 6, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/22

4:15 pm-6:55 pm

2 stops38h 40m

Siem Reap–Angkor Intl

Sat 11/7

7:25 pm-12:55 pm

2 stops54h 30m

$1,077
Quickest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/22

4:15 pm-9:00 am

2 stops28h 45m

Siem Reap–Angkor Intl

Sat 11/7

7:25 pm-12:55 pm

2 stops30h 30m

$1,081

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 10/25

8:45 pm-9:10 pm

2 stops36h 25m

Siem Reap–Angkor Intl

Tue 11/10

11:50 pm-2:55 pm

2 stops28h 05m

$1,298

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 10/21

12:30 am-12:15 pm

2 stops47h 45m

Siem Reap–Angkor Intl

Sat 11/7

9:30 pm-7:35 pm

2 stops59h 05m

$1,311

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 10/11

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Tue 10/27

1:20 pm-3:45 pm

2 stops38h 25m

$1,333

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 10/26

8:45 pm-12:40 pm

2 stops27h 55m

Siem Reap–Angkor Intl

Wed 11/11

1:20 pm-2:55 pm

2 stops38h 35m

$1,334

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 10/24

8:35 pm-12:40 pm

2 stops28h 05m

Siem Reap–Angkor Intl

Mon 11/9

1:20 pm-2:55 pm

2 stops38h 35m

$1,349

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 10/23

8:35 pm-12:40 pm

2 stops52h 05m

Siem Reap–Angkor Intl

Mon 11/9

1:20 pm-2:55 pm

2 stops38h 35m

$1,385

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/22

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Sat 11/7

11:50 pm-2:55 pm

2 stops28h 05m

$1,398

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 10/15

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Sat 10/31

11:50 pm-3:55 pm

2 stops52h 05m

$1,399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 O'Hare Intl to Siem Reap?

Emirates is the most popular carrier operating from Chicago O'Hare Intl to Siem Reap

Cheap Chicago O'Hare Intl Airport to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Region of Siem Reap

Fastest flight time

28h 45m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Region of Siem Reap takes 28h 45m
There are no direct flights from Chicago O'Hare Intl Airport to Region of Siem Reap. There are no popular flight routes from Chicago O'Hare Intl Airport to Region of Siem Reap.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Siem Reap

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Siem Reap?

    Prices for flights from Chicago O'Hare Intl Airport to Siem Reap were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Siem Reap?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Siem Reap.

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

    The travel and health documents you'll need for your trip to Siem Reap 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. 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?

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?

All flight searches from Chicago to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

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?

Price alerts on flights to Siem Reap from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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