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Siem Reap

$687+ Cheap flights from O'Hare Intl (ORD) to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAI
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Siem Reap

Cheapest flights from O'Hare Intl to Siem Reap
Explore the most affordable flight options available from O'Hare Intl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.

This KAYAK deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:15 pm
ORD
-
SAI
2 stops28h 45m
Multiple Airlines
Sun 10/1812:55 pm
SAI
-
ORD
2 stops37h 00m
Multiple Airlines
Deal found 5/28$974
This Ovago deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:00 pm
ORD
-
SAI
2 stops29h 00m
Multiple Airlines
Thu 9/1012:55 pm
SAI
-
ORD
2 stops37h 25m
Multiple Airlines
Deal found 5/27$1,155
This Ovago deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/294:00 pm
ORD
-
SAI
2 stops29h 00m
Multiple Airlines
Fri 9/1112:55 pm
SAI
-
ORD
2 stops37h 25m
Multiple Airlines
Deal found 5/27$1,230
This FlightHub deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:00 pm
ORD
-
SAI
2 stops34h 15m
Etihad Airways
Tue 8/183:10 pm
SAI
-
ORD
2 stops29h 25m
Etihad Airways
Deal found 5/26$1,477
This Etihad Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:00 pm
ORD
-
SAI
2 stops55h 00m
Etihad Airways
Tue 7/2112:55 pm
SAI
-
ORD
2 stops38h 45m
Etihad Airways
Deal found 5/26$1,610
This Etihad Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:25 pm
ORD
-
SAI
2 stops56h 30m
Etihad Airways
Tue 7/2112:55 pm
SAI
-
ORD
2 stops38h 45m
Etihad Airways
Deal found 5/26$1,615
This Ovago deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/232:00 pm
ORD
-
SAI
2 stops34h 15m
Etihad Airways
Fri 7/2412:55 pm
SAI
-
ORD
2 stops38h 45m
Etihad Airways
Deal found 5/26$1,640
This Emirates deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:35 pm
ORD
-
SAI
2 stops51h 40m
Emirates
Tue 8/1811:50 pm
SAI
-
ORD
3 stops37h 09m
Emirates
Deal found 5/26$1,642
This Etihad Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:00 pm
ORD
-
SAI
2 stops55h 00m
Etihad Airways
Fri 7/249:40 am
SAI
-
ORD
2 stops34h 55m
Etihad Airways
Deal found 5/26$1,645

Find flight deals from O'Hare Intl to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$974
(KAYAK)

One-way from

$687
(FlightHub)
Provider with most accurate pricing for Chicago O'Hare Intl-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Siem Reap–Angkor Intl flights.
Search Deals
From Chicago O'Hare Intl to Siem Reap–Angkor Intl
Search Deals
One-way flight from Chicago O'Hare Intl to Siem Reap–Angkor Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to 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, Cheapflights users made 2,558,603 searches. Data last updated May 29, 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 10/8

4:15 pm-9:00 am

2 stops28h 45m

Siem Reap–Angkor Intl

Sun 10/18

12:55 pm-1:55 pm

2 stops37h 00m

$974

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 8/10

8:35 pm-12:15 pm

2 stops51h 40m

Siem Reap–Angkor Intl

Tue 8/18

11:50 pm-12:59 am

3 stops37h 09m

$1,642

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 6/25

2:00 pm-9:00 am

2 stops55h 00m

Siem Reap–Angkor Intl

Fri 7/24

9:40 am-8:35 am

2 stops34h 55m

$1,645

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 6/23

8:25 pm-4:55 pm

2 stops56h 30m

Siem Reap–Angkor Intl

Wed 7/22

9:40 am-8:35 am

2 stops58h 55m

$1,651

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 6/22

2:00 pm-6:55 pm

2 stops40h 55m

Siem Reap–Angkor Intl

Fri 7/24

12:55 pm-8:35 am

2 stops31h 40m

$1,681

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 6/10

2:00 pm-12:15 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Tue 6/23

3:10 pm-8:35 am

2 stops29h 25m

$1,846

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 6/10

7:20 pm-6:55 pm

2 stops35h 35m

Siem Reap–Angkor Intl

Tue 6/23

12:55 pm-3:05 pm

2 stops38h 10m

$1,855

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Fri 6/12

7:20 pm-9:00 am

2 stops49h 40m

Siem Reap–Angkor Intl

Mon 6/22

7:35 pm-3:05 pm

2 stops31h 30m

$1,862
Quickest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Thu 6/11

7:20 pm-12:15 pm

2 stops28h 55m

Siem Reap–Angkor Intl

Wed 6/24

7:35 pm-3:05 pm

2 stops31h 30m

$1,889

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 6/10

7:20 pm-6:55 pm

2 stops35h 35m

Siem Reap–Angkor Intl

Wed 6/24

7:35 pm-3:05 pm

2 stops31h 30m

$1,889

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/24

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from O'Hare Intl to Siem Reap

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Siem Reap in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Siem Reap flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Siem Reap flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Siem Reap flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Siem Reap flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Siem Reap flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Siem Reap from Chicago O'Hare Intl?

    For a flight from Chicago O'Hare Intl to Siem Reap, you will be flying into Siem Reap–Angkor Intl. Siem Reap–Angkor Intl (SAI) is just 24.7 mi from the center of the city. Siem Reap–Angkor Intl is the only Siem Reap airport and it handles 0 inbound flights from Chicago O'Hare Intl per day. 0 airlines have flights to Siem Reap–Angkor Intl from Chicago O'Hare Intl on a regular basis.

  • How long is the flight from Chicago O'Hare Intl Airport to Siem Reap?

    For as low as $1,642, Emirates can have you in Siem Reap from Chicago O'Hare Intl Airport in 51h 40m. Airlines will cover a distance of 8529 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to Siem Reap that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Siem Reap.

  • Can I find deals for business class flights from O'Hare Intl to Siem Reap?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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