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Phnom Penh

$653+ Cheap flights from Illinois 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PNH
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$867
(United Airlines)

One-way from

$653
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,111
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
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One-way flight from Illinois to Phnom Penh Pochentong
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Highest demand for flights based on searches. 8% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This United Airlines deal was found by Cheapflights users on 3/3. 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.
Mon 4/76:25 pmORD - PNH
2 stops30h 40mMultiple Airlines
Wed 4/162:05 pmPNH - ORD
2 stops27h 39mMultiple Airlines
Deal found 3/3$867
This Korean Air deal was found by Cheapflights users on 3/2. 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.
Mon 4/712:20 pmORD - PNH
1 stop21h 50mKorean Air
Wed 4/1611:30 pmPNH - ORD
1 stop22h 10mKorean Air
Deal found 3/2$877
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Wed 10/154:00 pmORD - PNH
1 stop37h 20mCathay Pacific
Wed 11/511:45 amPNH - ORD
1 stop38h 15mCathay Pacific
Deal found 3/1$888
This Fareboom deal was found by Cheapflights users on 3/3. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/231:55 pmORD - PNH
2 stops30h 40mEtihad Airways
Tue 5/67:25 pmPNH - ORD
2 stops49h 20mEtihad Airways
Deal found 3/3$926
This FlightHub deal was found by Cheapflights users on 3/3. 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.
Tue 4/2212:30 amORD - PNH
1 stop22h 45mEVA Air
Tue 5/612:35 pmPNH - ORD
1 stop20h 25mEVA Air
Deal found 3/3$1,102
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Wed 10/157:40 pmORD - PNH
2 stops32h 20mQatar Airways
Wed 11/55:10 pmPNH - ORD
2 stops34h 20mQatar Airways
Deal found 3/1$1,131
This oojo deal was found by Cheapflights users on 3/2. 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.
Wed 4/97:40 amORD - PNH
2 stops52h 35mPhilippine Airlines
Thu 4/171:15 amPNH - ORD
2 stops40h 44mPhilippine Airlines
Deal found 3/2$1,220
This FlightHub deal was found by Cheapflights users on 3/3. 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.
Wed 4/236:58 pmORD - PNH
2 stops49h 42mSingapore Airlines
Tue 5/66:55 pmPNH - ORD
3 stops39h 25mSingapore Airlines
Deal found 3/3$1,225
This ScholarTrip deal was found by Cheapflights users on 3/2. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/129:25 amMDW - PNH
2 stops25h 00mKorean Air
Wed 3/2611:45 pmPNH - MDW
2 stops24h 51mKorean Air
Deal found 3/2$1,647
This Korean Air deal was found by Cheapflights users on 3/2. 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.
Tue 4/2210:20 amMDW - PNH
2 stops23h 50mMultiple Airlines
Wed 4/3011:30 pmPNH - MDW
2 stops25h 05mMultiple Airlines
Deal found 3/2$1,651

Find flights from Illinois to Phnom Penh within your budget

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 March 3, 2025.

Fly from

Illinois

Fly to

Phnom Penh

Route

Depart

Return

Price

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 4/7

6:25 pm-1:05 pm

2 stops30h 40m

Phnom Penh Pochentong

Wed 4/16

2:05 pm-5:44 am

2 stops27h 39m

$867

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 4/7

12:20 pm-10:10 pm

1 stop21h 50m

Phnom Penh Pochentong

Wed 4/16

11:30 pm-9:40 am

1 stop22h 10m

$877

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 4/10

4:00 pm-5:20 pm

1 stop37h 20m

Phnom Penh Pochentong

Wed 4/16

11:25 am-2:25 pm

1 stop39h 00m

$911

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 4/23

1:55 pm-8:35 am

2 stops30h 40m

Phnom Penh Pochentong

Tue 5/6

7:25 pm-8:45 am

2 stops49h 20m

$926

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 4/22

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

Tue 5/6

12:35 pm-9:00 pm

1 stop20h 25m

$1,102

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 4/23

7:20 pm-4:15 pm

2 stops32h 55m

Phnom Penh Pochentong

Tue 5/6

5:40 pm-3:05 pm

2 stops33h 25m

$1,175

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 4/9

7:40 am-12:15 am

2 stops52h 35m

Phnom Penh Pochentong

Thu 4/17

1:15 am-5:59 am

2 stops40h 44m

$1,220

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 4/23

6:58 pm-8:40 am

2 stops49h 42m

Phnom Penh Pochentong

Tue 5/6

6:55 pm-10:20 pm

3 stops39h 25m

$1,225

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

Tue 4/22

10:20 am-10:10 pm

2 stops23h 50m

Phnom Penh Pochentong

Wed 4/30

11:30 pm-12:35 pm

2 stops25h 05m

$1,651

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

Wed 3/19

9:25 am-10:25 pm

2 stops25h 00m

Phnom Penh Pochentong

Wed 4/2

11:30 pm-12:35 pm

2 stops25h 05m

$1,663

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 19 results
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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.

Travel insights for flights from Illinois to Phnom Penh

Get recent, data-driven insights about flights from Illinois to Phnom Penh including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Phnom Penh (average of $1,011). 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 March 3, 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 March 3, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Singapore Airlines from Illinois to Phnom Penh. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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
1,180 reviews
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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
1,035 reviews
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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
1,288 reviews
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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
825 reviews
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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
87 reviews
EVA Air
8.4
Very good
1,180 reviews

Boarding

8.4

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.0

Comfort

8.2

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 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 Qatar Airways, with whom users have recently found tickets for as low as $681. However, be on the lookout for offers from EVA Air and Philippine Airlines, 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, February is the cheapest month in which you can book a flight from Illinois to Phnom Penh (average of $1,011). 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$955FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$875Average$1,501FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,068Average$1,272FlexibilityNo cancel feeOn-time74%
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