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Phnom Penh

$568+ Cheap flights from Chicago (CHI) 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PNH
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Phnom Penh Pochentong are usually found in February or September, booked 37 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Chicago to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,023
(FlightHub)

One-way from

$630
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,155
Provider with most accurate pricing for Chicago (CHI)-Phnom Penh Pochentong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Phnom Penh Pochentong flights.
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From Chicago (CHI) to Phnom Penh Pochentong
Search Deals
One-way flight from Chicago (CHI) to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Chicago to Phnom Penh

Cheapest flights from Chicago to Phnom Penh
Explore the most affordable flight options available from Chicago to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This CrystalTravel deal was found by Cheapflights users on 4/3. 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.
Tue 10/2812:05 pmORD - PNH
1 stop22h 20mKorean Air
Tue 12/911:45 pmPNH - ORD
1 stop21h 45mKorean Air
Deal found 4/3$811
This FlightHub deal was found by Cheapflights users on 4/3. 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 10/273:40 pmORD - PNH
1 stop30h 45mCathay Pacific
Tue 12/911:45 amPNH - ORD
1 stop38h 15mCathay Pacific
Deal found 4/3$868
This Justfly.com deal was found by Cheapflights users on 4/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:59 pmORD - PNH
2 stops47h 41mSingapore Airlines
Sun 9/79:35 amPNH - ORD
2 stops46h 28mSingapore Airlines
Deal found 4/3$1,062
This CrystalTravel deal was found by Cheapflights users on 4/3. 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.
Mon 10/2712:30 amORD - PNH
1 stop22h 55mMultiple Airlines
Tue 12/99:45 amPNH - ORD
2 stops22h 50mMultiple Airlines
Deal found 4/3$1,095
This FlightHub deal was found by Cheapflights users on 4/3. 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.
Sun 5/411:25 amORD - PNH
2 stops57h 10mTurkish Airlines
Wed 6/47:25 pmPNH - ORD
2 stops26h 15mTurkish Airlines
Deal found 4/3$1,174
This FlightHub deal was found by Cheapflights users on 4/4. 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.
Thu 10/1612:30 amORD - PNH
1 stop22h 45mEVA Air
Sun 10/2612:45 pmPNH - ORD
1 stop19h 50mEVA Air
Deal found 4/4$1,178
This FlightHub deal was found by Cheapflights users on 4/3. 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.
Sun 11/306:55 pmORD - PNH
2 stops31h 30mQatar Airways
Sun 12/75:10 pmPNH - ORD
2 stops34h 20mQatar Airways
Deal found 4/3$1,182
This Korean Air deal was found by Cheapflights users on 4/4. 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.
Fri 10/179:20 amMDW - PNH
2 stops24h 50mMultiple Airlines
Sun 10/2611:45 pmPNH - MDW
2 stops24h 47mMultiple Airlines
Deal found 4/4$1,224
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Thu 5/14:25 pmORD - PNH
2 stops42h 30mUnited Airlines
Thu 5/811:55 pmPNH - ORD
2 stops37h 21mUnited Airlines
Deal found 4/3$1,303
This oojo deal was found by Cheapflights users on 4/3. 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.
Fri 8/297:16 amORD - PNH
2 stops28h 59mPhilippine Airlines
Sat 9/61:15 amPNH - ORD
2 stops30h 45mPhilippine Airlines
Deal found 4/3$1,411
This Ovago deal was found by Cheapflights users on 4/3. 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 10/288:55 amORD - PNH
2 stops50h 15mAir China
Mon 12/812:25 amPNH - ORD
2 stops35h 47mAir China
Deal found 4/3$1,627
This Mytrip deal was found by Cheapflights users on 4/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/612:30 amORD - PNH
2 stops31h 25mThai Airways
Wed 5/149:15 pmPNH - ORD
2 stops35h 45mThai Airways
Deal found 4/4$1,690

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 April 4, 2025.
Use the filters below to find and compare flights from Chicago to Phnom Penh that are best for you.

Fly from

Chicago

Fly to

Phnom Penh

Route

Depart

Return

Price

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 4/14

4:00 pm-10:15 am

1 stop30h 15m

Phnom Penh Pochentong

Tue 4/29

11:25 am-2:25 pm

1 stop39h 00m

$1,023

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Fri 8/29

8:59 pm-8:40 am

2 stops47h 41m

Phnom Penh Pochentong

Sun 9/7

9:35 am-8:03 pm

2 stops46h 28m

$1,062

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 9/1

12:10 pm-10:10 pm

1 stop22h 00m

Phnom Penh Pochentong

Sun 9/7

11:30 pm-9:30 am

1 stop22h 00m

$1,084

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 9/1

6:15 am-10:55 pm

2 stops28h 40m

Phnom Penh Pochentong

Sun 9/7

2:05 pm-11:46 am

2 stops33h 41m

$1,105

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sun 5/4

11:25 am-8:35 am

2 stops57h 10m

Phnom Penh Pochentong

Wed 6/4

7:25 pm-9:40 am

2 stops26h 15m

$1,174

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 4/30

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

Thu 5/8

12:35 pm-9:00 pm

1 stop20h 25m

$1,200

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Fri 4/18

7:20 pm-4:15 pm

2 stops32h 55m

Phnom Penh Pochentong

Wed 4/30

5:40 pm-3:05 pm

2 stops57h 25m

$1,253

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 5/1

4:25 pm-10:55 pm

2 stops42h 30m

Phnom Penh Pochentong

Thu 5/8

11:55 pm-1:16 am

2 stops37h 21m

$1,303

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Fri 8/29

7:16 am-12:15 am

2 stops28h 59m

Phnom Penh Pochentong

Sat 9/6

1:15 am-8:00 pm

2 stops30h 45m

$1,411

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

Mon 4/14

9:20 am-10:10 pm

2 stops24h 50m

Phnom Penh Pochentong

Tue 4/29

11:30 pm-12:35 pm

2 stops25h 05m

$1,661

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 20 results
1
2

Compare providers for flights from Chicago 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 Chicago to Phnom Penh in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 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-Phnom Penh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Phnom Penh 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-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 Chicago to Phnom Penh

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

How far ahead should I book a flight from Chicago to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Phnom Penh. Price data was last updated on March 28, 2025.

The price you pay for your flight from Chicago to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 37 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 to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from Chicago to Phnom Penh (average of $994). Flying from Chicago to Phnom Penh in June is currently the most expensive (average of $1,582). 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 CHI to PNH?

Find hourly flight availability from Chicago 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 April 4, 2025.

It’s typically best to fly out from Chicago to Phnom Penh at noon. Doing so could potentially save you 36% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

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 April 4, 2025.
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,053 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Singapore Airlines
8.1
Very good
1,287 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Cathay Pacific
7.5
Good
842 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Southern
7.5
Good
94 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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?

    Most people fly into Phnom Penh Pochentong (PNH) if they book a flight to Phnom Penh from Chicago. On average, Pochentong has 0 inbound flights from Chicago per day from 3 airlines. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

  • What are the cheapest airlines flying from Chicago to Phnom Penh round-trip?

    Currently priced at $1,023, Cathay Pacific will fly you from Chicago to Phnom Penh and back. In addition to Cathay Pacific, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and Korean Air - these airlines can fly you to your destination from $1,062 and $1,084, respectively. Cathay Pacific is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago to Phnom Penh one-way?

    $821 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on Air Canada and Cathay Pacific, with prices starting from $999 and $1,123, respectively.

  • Can I find deals for flights from Chicago to Phnom Penh that include hotel bookings?

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

  • How can I find direct flights from Chicago to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Phnom Penh.

  • Can I find deals for business class flights from Chicago to Phnom Penh?

    Yes. Cheapflights offers flight deals from Chicago 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 to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from Chicago to Phnom Penh (average of $994). Flying from Chicago to Phnom Penh in June is currently the most expensive (average of $1,582). 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 Chicago to Phnom Penh

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

Top 3 airlines flying from Chicago to Phnom Penh

Discover the top 3 airlines that operate flights from Chicago 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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$958FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$866Average$1,510FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,066Average$1,240FlexibilityNo cancel feeOn-time74%

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