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Phnom Penh

$458+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PNH
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$775
(Ovago)

One-way from

$458
(CrystalTravel)

Popular in

June

Cheapest in

October

Average price

$1,523
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. 15% potential increase in price ($239 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Ovago deal was found by Cheapflights users on 7/30. 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.
Fri 8/294:00 pmORD - PNH
1 stop30h 15mCathay Pacific
Sun 9/711:25 amPNH - ORD
1 stop39h 00mCathay Pacific
Deal found 7/30$775
This United deal was found by Cheapflights users on 7/31. 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.
Mon 10/64:25 pmORD - PNH
2 stops28h 15mMultiple Airlines
Mon 11/109:35 amPNH - ORD
2 stops32h 25mMultiple Airlines
Deal found 7/31$882
This oojo deal was found by Cheapflights users on 7/31. 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.
Sun 9/1412:10 pmORD - PNH
1 stop22h 00mKorean Air
Sun 9/2111:30 pmPNH - ORD
1 stop22h 00mKorean Air
Deal found 7/31$939
This oojo deal was found by Cheapflights users on 7/31. 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.
Sun 10/512:30 amORD - PNH
1 stop22h 45mEVA Air
Mon 11/1012:45 pmPNH - ORD
1 stop19h 50mEVA Air
Deal found 7/31$1,064
This oojo deal was found by Cheapflights users on 7/30. 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.
Thu 9/118:00 amORD - PNH
2 stops26h 55mAsiana Airlines
Sat 9/2011:55 pmPNH - ORD
2 stops36h 08mAsiana Airlines
Deal found 7/30$1,087
This oojo deal was found by Cheapflights users on 7/31. 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.
Mon 10/61:36 pmORD - PNH
3 stops35h 34mSingapore Airlines
Mon 11/102:40 pmPNH - ORD
2 stops44h 00mSingapore Airlines
Deal found 7/31$1,163
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 8/296:15 amORD - PNH
2 stops28h 40mUnited Airlines
Sun 9/711:55 pmPNH - ORD
2 stops41h 13mUnited Airlines
Deal found 7/31$1,165
This Korean Air deal was found by Cheapflights users on 7/31. 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.
Sun 9/149:20 amMDW - PNH
2 stops24h 50mMultiple Airlines
Sun 9/2111:30 pmPNH - MDW
2 stops24h 58mMultiple Airlines
Deal found 7/31$1,348
This Ovago deal was found by Cheapflights users on 7/30. 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.
Thu 7/319:24 amMDW - PNH
2 stops24h 46mKorean Air
Sat 8/911:30 pmPNH - MDW
2 stops24h 59mKorean Air
Deal found 7/30$2,353

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 July 31, 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

Fri 8/29

4:00 pm-10:15 am

1 stop30h 15m

Phnom Penh Pochentong

Sun 9/7

11:25 am-2:25 pm

1 stop39h 00m

$775

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 10/6

4:25 pm-8:40 am

2 stops28h 15m

Phnom Penh Pochentong

Mon 11/10

9:35 am-5:00 am

2 stops32h 25m

$882

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sun 9/14

12:10 pm-10:10 pm

1 stop22h 00m

Phnom Penh Pochentong

Sun 9/21

11:30 pm-9:30 am

1 stop22h 00m

$939

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sun 10/5

12:30 am-11:15 am

1 stop22h 45m

Phnom Penh Pochentong

Mon 11/10

12:45 pm-7:35 pm

1 stop19h 50m

$1,064

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 9/11

8:00 am-10:55 pm

2 stops26h 55m

Phnom Penh Pochentong

Sat 9/20

11:55 pm-12:03 am

2 stops36h 08m

$1,087

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Mon 10/6

1:36 pm-1:10 pm

3 stops35h 34m

Phnom Penh Pochentong

Mon 11/10

2:40 pm-9:40 pm

2 stops44h 00m

$1,163

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Fri 8/29

6:15 am-10:55 pm

2 stops28h 40m

Phnom Penh Pochentong

Sun 9/7

11:55 pm-5:08 am

2 stops41h 13m

$1,165

ChicagoPhnom Penh

MDW - PNH

MDWPNH

Chicago Midway

Sun 9/14

9:20 am-10:10 pm

2 stops24h 50m

Phnom Penh Pochentong

Sun 9/21

11:30 pm-12:28 pm

2 stops24h 58m

$1,348

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 1/20

11:25 am-10:25 pm

1 stop22h 00m

$458

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 10/23

9:13 pm-8:35 am

2 stops47h 22m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 15 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.

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 $988). Flying from Illinois to Phnom Penh in June is currently the most expensive (average of $1,549). 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 July 31, 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.

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 July 31, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and Asiana Airlines from Illinois to Phnom Penh. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

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
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

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
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very good
468 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

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
1,338 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

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
7.6
Good
949 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

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 Korean Air, with whom users have recently found tickets for as low as $458. However, be on the lookout for offers from EVA Air and United 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, March is the cheapest month in which you can book a flight from Illinois to Phnom Penh (average of $988). Flying from Illinois to Phnom Penh in June is currently the most expensive (average of $1,549). 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$934FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$845Average$1,171FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,064Average$1,297FlexibilityNo cancel feeOn-time74%

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