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Siem Reap

$773+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAI
May 16 — May 231
Sat 5/16
Sat 5/23
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 April 16, 2026.

This Gotogate deal was found by Cheapflights users on 4/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:15 pm
ORD
-
SAI
2 stops28h 30m
Multiple Airlines
Thu 5/219:45 am
SAI
-
ORD
2 stops40h 10m
Multiple Airlines
Deal found 4/13$1,245
This Emirates deal was found by Cheapflights users on 4/12. 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.
Sun 5/38:35 pm
ORD
-
SAI
2 stops36h 55m
Emirates
Thu 5/711:50 pm
SAI
-
ORD
2 stops27h 55m
Emirates
Deal found 4/12$1,259
This Emirates deal was found by Cheapflights users on 4/14. 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.
Sun 10/258:45 pm
ORD
-
SAI
2 stops36h 25m
Emirates
Sat 10/3111:50 pm
SAI
-
ORD
2 stops52h 05m
Emirates
Deal found 4/14$1,306
This oojo deal was found by Cheapflights users on 4/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:10 pm
ORD
-
SAI
2 stops32h 45m
Multiple Airlines
Sat 10/312:50 pm
SAI
-
ORD
2 stops30h 05m
Multiple Airlines
Deal found 4/11$1,328
This Emirates deal was found by Cheapflights users on 4/13. 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.
Fri 11/277:45 pm
ORD
-
SAI
2 stops27h 55m
Emirates
Sat 12/511:50 pm
SAI
-
ORD
2 stops52h 05m
Emirates
Deal found 4/13$1,356
This oojo deal was found by Cheapflights users on 4/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:05 am
ORD
-
SAI
3 stops45h 50m
Singapore Airlines
Sat 10/314:45 pm
SAI
-
ORD
2 stops44h 14m
Singapore Airlines
Deal found 4/14$1,416
This SmartFares deal was found by Cheapflights users on 4/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:00 pm
ORD
-
SAI
2 stops38h 55m
Multiple Airlines
Tue 7/283:10 pm
SAI
-
ORD
2 stops36h 30m
Multiple Airlines
Deal found 4/14$1,496
This Gotogate deal was found by Cheapflights users on 4/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:00 pm
ORD
-
SAI
2 stops34h 15m
Etihad Airways
Tue 3/21:20 pm
SAI
-
ORD
2 stops31h 35m
Etihad Airways
Deal found 4/10$1,529
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:10 pm
ORD
-
SAI
2 stops23h 50m
Etihad Airways
Tue 7/2812:55 pm
SAI
-
ORD
2 stops31h 40m
Etihad Airways
Deal found 4/14$1,544

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 April 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,259
(Emirates)

One-way from

$773
(Kiwi.com)
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 April 16, 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

Sun 5/3

8:35 pm-9:30 pm

2 stops36h 55m

Siem Reap–Angkor Intl

Thu 5/7

11:50 pm-3:45 pm

2 stops27h 55m

$1,259

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 7/7

2:00 pm-12:15 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Tue 3/2

1:20 pm-7:55 am

2 stops31h 35m

$1,529
Quickest round-trip

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 7/13

9:10 pm-9:00 am

2 stops23h 50m

Siem Reap–Angkor Intl

Tue 7/28

12:55 pm-8:35 am

2 stops31h 40m

$1,544

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 6/24

6:40 pm-9:30 pm

3 stops62h 50m

Siem Reap–Angkor Intl

Tue 7/28

11:50 pm-3:45 pm

2 stops27h 55m

$1,913

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 7/13

9:40 pm-9:30 pm

3 stops59h 50m

Siem Reap–Angkor Intl

Tue 7/28

11:50 pm-12:45 am

3 stops36h 55m

$2,037

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 7/7

4:03 pm-12:15 pm

3 stops32h 12m

Siem Reap–Angkor Intl

Tue 3/2

7:25 pm-2:30 pm

2 stops32h 05m

$2,060
Cheapest one-way
Quickest one-way

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Mon 4/20

8:10 pm-8:45 am

2 stops24h 35m

$858

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Sorted by cheapest first

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 $1,529, Emirates can have you in Siem Reap from Chicago O'Hare Intl Airport in 34h 15m. 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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