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Phnom Penh

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

ORD — PNH
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
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 November or September, booked 51 days in advance, depart on a Sunday or Monday and return on a Wednesday

Find 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 December 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Popular in

June

Cheapest in

November

Average price

$1,664
Provider with most accurate pricing for Chicago O'Hare Intl-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Phnom Penh Pochentong flights.
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Highest demand for flights based on searches. 23% potential increase in price ($394 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Compare providers for flights from O'Hare Intl to Phnom Penh

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 Phnom Penh in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars

*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-Phnom Penh flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago O'Hare Intl Airport-Phnom Penh flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Phnom Penh flights, Cheapflights users trust CheapOair the most. CheapOair 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-Phnom Penh 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 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 December 19, 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 51 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 $719). Flying from Chicago O'Hare Intl Airport to Phnom Penh in June is currently the most expensive (average of $1,484). 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 December 26, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 35% on flights from Chicago O'Hare Intl Airport to Phnom Penh by exploring options for tickets at noon.

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 December 26, 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
8.5
Very good
1,299 reviews

Food

8.1

Entertainment

8.0

Overall

8.5

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very good
1,299 reviews
EVA Air
8.5
Very good
1,299 reviews

Food

8.1

Entertainment

8.0

Overall

8.5

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Korean Air
8.4
Very good
1,185 reviews
EVA Air
8.5
Very good
1,299 reviews

Food

8.1

Entertainment

8.0

Overall

8.5

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Cathay Pacific
7.6
Good
1,105 reviews
EVA Air
8.5
Very good
1,299 reviews

Food

8.1

Entertainment

8.0

Overall

8.5

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

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 41% 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 $719). Flying from Chicago O'Hare Intl Airport to Phnom Penh in June is currently the most expensive (average of $1,484). 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.

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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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$1,036FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$844Average$1,114FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,024Average$1,260FlexibilityNo cancel feeOn-time74%

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