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Phnom Penh

$847+ Cheap flights from Illinois to Phnom Penh (PNH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PNH
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheap flight deals from Illinois to Phnom Penh

Keep the following information in mind while searching for Illinois to Phnom Penh flight deals. Data was last updated abril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$847
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$1,162
Provider with most accurate pricing for Chicago (CHI)-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Phnom Penh Pochentong flights.
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From Illinois to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Illinois to Phnom Penh

Cheapest flights from Illinois to Phnom Penh
Explore the most affordable flight options available from Illinois to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/294:00 pmORD - PNH
1 stop30h 15mCathay Pacific
dom. 9/711:25 amPNH - ORD
1 stop39h 00mCathay Pacific
Deal found 4/28$847
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/312:10 pmORD - PNH
1 stop22h 00mKorean Air
sáb. 10/2511:30 pmPNH - ORD
1 stop22h 00mKorean Air
Deal found 4/28$859
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/64:25 pmORD - PNH
2 stops28h 15mMultiple Airlines
lun. 10/202:05 pmPNH - ORD
2 stops27h 08mMultiple Airlines
Deal found 4/28$935
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1812:30 amORD - PNH
1 stop22h 45mEVA Air
mié. 2/2512:45 pmPNH - ORD
1 stop19h 50mEVA Air
Deal found 4/28$1,101
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:55 amORD - PNH
2 stops37h 30mTurkish Airlines
jue. 11/137:25 pmPNH - ORD
2 stops27h 45mTurkish Airlines
Deal found 4/28$1,111
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/26:55 pmORD - PNH
2 stops31h 30mQatar Airways
dom. 12/215:10 pmPNH - ORD
2 stops34h 20mQatar Airways
Deal found 4/28$1,173
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/296:15 amORD - PNH
2 stops28h 40mUnited Airlines
dom. 12/2111:55 pmPNH - ORD
2 stops48h 41mUnited Airlines
Deal found 4/28$1,180
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:20 amMDW - PNH
2 stops24h 50mKorean Air
lun. 10/2011:30 pmPNH - MDW
2 stops25h 02mKorean Air
Deal found 4/28$1,231
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:00 pmORD - PNH
2 stops47h 40mSingapore Airlines
lun. 10/206:55 pmPNH - ORD
3 stops37h 59mSingapore Airlines
Deal found 4/28$1,233
This Korean Air deal was found by Cheapflights users on 4/28. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/179:30 amMDW - PNH
2 stops24h 40mMultiple Airlines
dom. 10/2611:45 pmPNH - MDW
2 stops24h 47mMultiple Airlines
Deal found 4/28$1,292
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/107:13 pmORD - PNH
2 stops32h 52mChina Airlines
dom. 5/1810:50 amPNH - ORD
2 stops30h 50mChina Airlines
Deal found 4/28$1,297
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/296:00 amORD - PNH
2 stops30h 15mPhilippine Airlines
sáb. 9/61:15 amPNH - ORD
2 stops40h 03mPhilippine Airlines
Deal found 4/28$1,412

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois 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 abril 29, 2025.
Use the filters below to find and compare flights from Illinois to Phnom Penh that are best for you.

Fly from

Illinois

Fly to

Phnom Penh

Route

Depart

Return

Price

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

11:25 am-2:25 pm

1 stop39h 00m

$847

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

vie. 10/3

12:10 pm-10:10 pm

1 stop22h 00m

Phnom Penh Pochentong

sáb. 10/25

11:30 pm-9:30 am

1 stop22h 00m

$859

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

lun. 10/6

4:25 pm-8:40 am

2 stops28h 15m

Phnom Penh Pochentong

lun. 10/20

2:05 pm-5:13 am

2 stops27h 08m

$935

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

sáb. 10/18

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

mié. 2/25

12:45 pm-7:35 pm

1 stop19h 50m

$1,101

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

vie. 8/29

7:20 pm-4:15 pm

2 stops32h 55m

Phnom Penh Pochentong

dom. 9/7

5:40 pm-3:05 pm

2 stops33h 25m

$1,205

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

lun. 10/6

9:20 am-10:10 pm

2 stops24h 50m

Phnom Penh Pochentong

lun. 10/20

11:30 pm-12:32 pm

2 stops25h 02m

$1,231

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

lun. 10/6

9:00 pm-8:40 am

2 stops47h 40m

Phnom Penh Pochentong

lun. 10/20

6:55 pm-8:54 pm

3 stops37h 59m

$1,233

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

vie. 10/17

9:30 am-10:10 pm

2 stops24h 40m

Phnom Penh Pochentong

dom. 10/26

11:45 pm-12:32 pm

2 stops24h 47m

$1,292

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

sáb. 5/10

7:13 pm-4:05 pm

2 stops32h 52m

Phnom Penh Pochentong

dom. 5/18

10:50 am-5:40 am

2 stops30h 50m

$1,297

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

vie. 8/29

6:00 am-12:15 am

2 stops30h 15m

Phnom Penh Pochentong

sáb. 9/6

1:15 am-5:18 am

2 stops40h 03m

$1,412

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 18 results
1
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Best time to book a flight from Illinois to Phnom Penh

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

What is the cheapest month to book a flight from Illinois to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from Illinois to Phnom Penh (average of $991). Flying from Illinois 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 IL to PNH?

Find hourly flight availability from Illinois 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 abril 29, 2025.

When flying from Illinois to Phnom Penh, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 abril 29, 2025.
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,184 reviews
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,063 reviews
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
729 reviews
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Singapore Airlines
8.1
Very good
1,292 reviews
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Cathay Pacific
7.5
Good
852 reviews
EVA Air
8.4
Very good
1,184 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    Phnom Penh Pochentong (PNH) is the airport you will fly into if you book a flight from Illinois to Phnom Penh. It is only a 5.0 mi journey from Pochentong (PNH) to Phnom Penh’s city center.

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

    The cheapest airline one-way is Cathay Pacific, with whom users have recently found tickets for as low as $1,144. However, be on the lookout for offers from EVA Air and Qatar Airways, as they are both options that can get you from Illinois to Phnom Penh for a low price.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Illinois to Phnom Penh (average of $991). Flying from Illinois 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 Illinois to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Phnom Penh

Discover the top 3 airlines that operate flights from Illinois 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$955FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$855Average$1,481FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,065Average$1,256FlexibilityNo cancel feeOn-time74%

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