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Phnom Penh

$485+ Cheap flights from O'Hare Intl (ORD) to Phnom Penh (PNH)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PNH
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Phnom Penh Pochentong are usually found in September or August, booked 80 days in advance, depart on a Sunday or Monday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Phnom Penh (PNH). 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 agosto 14, 2025.

Round-trip from

$661
(United)

One-way from

$485
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$1,069
From Chicago O'Hare Intl to Phnom Penh Pochentong
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One-way flight from Chicago O'Hare Intl to Phnom Penh Pochentong
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Highest demand for flights based on searches. 6% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from O'Hare Intl to Phnom Penh

Cheapest flights from O'Hare Intl to Phnom Penh
Explore the most affordable flight options available from O'Hare Intl to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This United deal was found by Cheapflights users on 8/13. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/106:35 pmORD - PNH
2 stops26h 05mMultiple Airlines
mié. 9/179:35 amPNH - ORD
2 stops32h 29mMultiple Airlines
Deal found 8/13$661
This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/294:00 pmORD - PNH
1 stop37h 20mCathay Pacific
dom. 9/711:25 amPNH - ORD
1 stop39h 00mCathay Pacific
Deal found 8/14$709
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1012:10 pmORD - PNH
1 stop22h 00mKorean Air
jue. 10/1611:30 pmPNH - ORD
1 stop22h 00mKorean Air
Deal found 8/13$877
This CrystalTravel deal was found by Cheapflights users on 8/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/912:30 amORD - PNH
1 stop22h 45mEVA Air
mié. 9/1712:35 pmPNH - ORD
1 stop20h 10mEVA Air
Deal found 8/13$1,044
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/296:15 amORD - PNH
2 stops28h 40mUnited Airlines
lun. 11/2411:55 pmPNH - ORD
2 stops36h 15mUnited Airlines
Deal found 8/13$1,056
This oojo deal was found by Cheapflights users on 8/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/912:30 amORD - PNH
1 stop22h 45mEVA Air
jue. 10/1612:35 pmPNH - ORD
1 stop20h 10mEVA Air
Deal found 8/13$1,064
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1512:30 amORD - PNH
1 stop22h 45mEVA Air
lun. 12/812:45 pmPNH - ORD
1 stop19h 50mEVA Air
Deal found 8/14$1,067
This oojo deal was found by Cheapflights users on 8/14. 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.
mié. 11/196:44 amORD - PNH
3 stops46h 46mSingapore Airlines
vie. 12/52:40 pmPNH - ORD
2 stops40h 10mSingapore Airlines
Deal found 8/14$1,069
This CrystalTravel deal was found by Cheapflights users on 8/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/211:30 pmORD - PNH
1 stop22h 55mEVA Air
jue. 5/2812:35 pmPNH - ORD
1 stop20h 25mEVA Air
Deal found 8/14$1,081
This oojo deal was found by Cheapflights users on 8/14. 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.
mar. 10/1412:30 amORD - PNH
1 stop22h 45mEVA Air
mar. 12/912:45 pmPNH - ORD
1 stop19h 50mEVA Air
Deal found 8/14$1,102
This oojo deal was found by Cheapflights users on 8/14. 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.
sáb. 9/135:45 pmORD - PNH
2 stops41h 10mAsiana Airlines
dom. 9/2111:55 pmPNH - ORD
2 stops36h 08mAsiana Airlines
Deal found 8/14$1,103

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Phnom Penh 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 agosto 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Phnom Penh that are best for you.

Fly from

O'Hare Intl

Fly to

Phnom Penh

Route

Depart

Return

Price

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mié. 9/10

2:25 pm-8:40 am

2 stops30h 15m

Phnom Penh Pochentong

jue. 10/16

9:35 am-5:13 am

2 stops31h 38m

$661

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mié. 9/10

6:35 pm-8:40 am

2 stops26h 05m

Phnom Penh Pochentong

mié. 9/17

9:35 am-6:04 am

2 stops32h 29m

$661

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

vie. 8/29

4:00 pm-10:15 am

1 stop30h 15m

Phnom Penh Pochentong

dom. 9/7

6:30 pm-2:25 pm

1 stop31h 55m

$709

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mié. 9/10

12:10 pm-10:10 pm

1 stop22h 00m

Phnom Penh Pochentong

jue. 10/16

11:30 pm-9:30 am

1 stop22h 00m

$877

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mar. 9/9

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

mié. 9/17

12:35 pm-8:45 pm

1 stop20h 10m

$1,044

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

lun. 9/29

6:15 am-10:55 pm

2 stops28h 40m

Phnom Penh Pochentong

lun. 11/24

11:55 pm-11:10 pm

2 stops36h 15m

$1,056

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mar. 9/9

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

jue. 10/16

12:35 pm-8:45 pm

1 stop20h 10m

$1,064

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

dom. 9/28

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

lun. 11/24

12:45 pm-7:35 pm

1 stop19h 50m

$1,064

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mié. 10/15

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

lun. 12/8

12:45 pm-7:35 pm

1 stop19h 50m

$1,067

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

mié. 10/15

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

mar. 12/9

12:45 pm-7:35 pm

1 stop19h 50m

$1,067

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results
1
2

Best time to book a flight from O'Hare Intl to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh 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.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Phnom Penh

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Phnom Penh. Price data was last updated on August 8, 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Phnom Penh (average of $986). Flying from Chicago O'Hare Intl Airport to Phnom Penh in June is currently the most expensive (average of $1,546). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to PNH?

Find hourly flight availability from O'Hare Intl to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Chicago O'Hare Intl Airport to Phnom Penh by exploring options for tickets at noon.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Phnom Penh?

What’s the top layover airport for flights from Chicago O'Hare Intl Airport to Phnom Penh?

Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh chosen by Cheapflights users in the past 12 months, using the same layover each way.

Incheon (ICN) – chosen by Cheapflights users on 56% of 1-stop itineraries from Chicago O'Hare Intl Airport to Phnom Penh on Cheapflights.

What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to Phnom Penh?

Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport to Phnom Penh, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Hong Kong (HKG) is the most affordable 1-stop option, with an average round-trip price of $917.

What’s the fastest layover option from Chicago O'Hare Intl Airport to Phnom Penh?

Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport to Phnom Penh, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for 1-stop routes: 22h 00m.

Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to Phnom Penh?

Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport to Phnom Penh, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Incheon (ICN) offer the fastest connection on this route, with an average layover time of 2h 38m.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated agosto 14, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and Cathay Pacific from Chicago O'Hare Intl Airport to Phnom Penh. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very good
1,233 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Korean Air
8.4
Very good
1,131 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Cathay Pacific
7.6
Good
968 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Phnom Penh. 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 Phnom Penh from Chicago O'Hare Intl?

    Phnom Penh Pochentong (PNH) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Phnom Penh. You should not have trouble finding flights to Pochentong from Chicago O'Hare Intl; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Phnom Penh airport from Chicago O'Hare Intl. It is only a 5.0 mi journey from Pochentong (PNH) to Phnom Penh’s city center.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Phnom Penh round-trip?

    Cathay Pacific, at $733, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Phnom Penh.Alternate airlines to your destination round-trip include Korean Air and EVA Air. Cathay Pacific is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from O'Hare Intl to Phnom Penh?

    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 Phnom Penh.

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

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

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Phnom Penh (average of $986). Flying from Chicago O'Hare Intl Airport to Phnom Penh in June is currently the most expensive (average of $1,546). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for O'Hare Intl to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Phnom Penh flights
O'Hare Intl to Krong Preah Sihanouk flights

Top 3 airlines flying from O'Hare Intl to Phnom Penh

Discover the top 3 airlines that operate flights from O'Hare Intl to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$934FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$845Average$1,161FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,064Average$1,299FlexibilityNo cancel feeOn-time74%

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