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Cheap flights from Chicago O'Hare Intl Airport to Phnom Penh from $692

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Phnom Penh departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Phnom Penh

Cheap round-trip flights

Etihad Airways Logo
1:55 pm - 6:55 amORD-PNH
29h 00m1 stop
Etihad Airways Logo
8:30 am - 8:45 amPNH-ORD
36h 15m1 stop
$1,329Etihad Airways
Find Deal
Tue, Oct 14 - Tue, Oct 21
Etihad Airways Logo
1:10 pm - 6:30 amORD-PNH
28h 20m1 stop
Etihad Airways Logo
7:50 pm - 7:55 amPNH-ORD
25h 05m1 stop
$1,492Etihad Airways
Find Deal
Sun, Feb 8 - Sat, Feb 28
Etihad Airways Logo
1:10 pm - 6:25 pmORD-PNH
40h 15m1 stop
Etihad Airways Logo
7:50 pm - 7:55 amPNH-ORD
25h 05m1 stop
$1,518Etihad Airways
Find Deal
Tue, Nov 18 - Thu, Feb 26
Etihad Airways Logo
1:10 pm - 6:25 pmORD-PNH
40h 15m1 stop
Etihad Airways Logo
7:55 am - 7:55 amPNH-ORD
37h 00m1 stop
$1,542Etihad Airways
Find Deal
Sun, Nov 16 - Mon, Feb 23
Etihad Airways Logo
1:10 pm - 6:25 pmORD-PNH
40h 15m1 stop
Etihad Airways Logo
7:55 am - 7:55 amPNH-ORD
37h 00m1 stop
$1,604Etihad Airways
Find Deal
Thu, Nov 13 - Fri, Feb 27
Etihad Airways Logo
2:10 pm - 6:30 amORD-PNH
28h 20m1 stop
Etihad Airways Logo
7:55 am - 7:55 amPNH-ORD
37h 00m1 stop
$1,605Etihad Airways
Find Deal
Tue, Oct 28 - Tue, Nov 4
Logo
1:55 pm - 6:55 amORD-PNH
29h 00m1 stop
Logo
1:55 pm - 11:10 amPNH-ORD
33h 15m3 stops
$1,615
Find Deal
Tue, Oct 14 - Tue, Oct 21
Etihad Airways Logo
1:10 pm - 6:30 amORD-PNH
28h 20m1 stop
Etihad Airways Logo
7:55 am - 7:55 amPNH-ORD
37h 00m1 stop
$1,654Etihad Airways
Find Deal
Wed, Nov 26 - Fri, Jan 30
Etihad Airways Logo
1:10 pm - 6:25 pmORD-PNH
40h 15m1 stop
Etihad Airways Logo
7:55 am - 8:55 amPNH-ORD
37h 00m1 stop
$1,673Etihad Airways
Find Deal
Thu, Mar 5 - Mon, Mar 9
Logo
7:15 am - 6:30 amORD-PNH
34h 15m3 stops
Logo
7:55 am - 7:55 amPNH-ORD
37h 00m1 stop
$2,254
Find Deal
Wed, Nov 26 - Fri, Jan 30

Etihad Airways flights from Chicago O'Hare Intl Airport to Phnom Penh

Our best Etihad Airways deals on Chicago O'Hare Intl Airport to Phnom Penh flight tickets
Etihad Airways
Oct 14
ORD1:55 pmChicago O'Hare Intl
29h 00m
1 stop
PNH6:55 amPhnom Penh Pochentong
Oct 21
PNH8:30 amPhnom Penh Pochentong
36h 15m
1 stop
ORD8:45 amChicago O'Hare Intl
$1,329
Find similar
Etihad Airways
Feb 8
ORD1:10 pmChicago O'Hare Intl
28h 20m
1 stop
PNH6:30 amPhnom Penh Pochentong
Feb 28
PNH7:50 pmPhnom Penh Pochentong
25h 05m
1 stop
ORD7:55 amChicago O'Hare Intl
$1,492
Find similar
Etihad Airways
Nov 18
ORD1:10 pmChicago O'Hare Intl
40h 15m
1 stop
PNH6:25 pmPhnom Penh Pochentong
Feb 26
PNH7:50 pmPhnom Penh Pochentong
25h 05m
1 stop
ORD7:55 amChicago O'Hare Intl
$1,518
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 10/14

1:55 pm-6:55 am

1 stop29h 00m

Phnom Penh Pochentong

Tue 10/21

8:30 am-8:45 am

1 stop36h 15m

$1,329

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sun 2/8

1:10 pm-6:30 am

1 stop28h 20m

Phnom Penh Pochentong

Sat 2/28

7:50 pm-7:55 am

1 stop25h 05m

$1,492

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 11/18

1:10 pm-6:25 pm

1 stop40h 15m

Phnom Penh Pochentong

Thu 2/26

7:50 pm-7:55 am

1 stop25h 05m

$1,518

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sun 11/16

1:10 pm-6:25 pm

1 stop40h 15m

Phnom Penh Pochentong

Mon 2/23

7:55 am-7:55 am

1 stop37h 00m

$1,542

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 11/13

1:10 pm-6:25 pm

1 stop40h 15m

Phnom Penh Pochentong

Fri 2/27

7:55 am-7:55 am

1 stop37h 00m

$1,604

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 10/28

2:10 pm-6:30 am

1 stop28h 20m

Phnom Penh Pochentong

Tue 11/4

7:55 am-7:55 am

1 stop37h 00m

$1,605

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 10/14

1:55 pm-6:55 am

1 stop29h 00m

Phnom Penh Pochentong

Tue 10/21

1:55 pm-11:10 am

3 stops33h 15m

$1,615

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 11/26

1:10 pm-6:30 am

1 stop28h 20m

Phnom Penh Pochentong

Fri 1/30

7:55 am-7:55 am

1 stop37h 00m

$1,654

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Thu 3/5

1:10 pm-6:25 pm

1 stop40h 15m

Phnom Penh Pochentong

Mon 3/9

7:55 am-8:55 am

1 stop37h 00m

$1,673

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 11/26

7:15 am-6:30 am

3 stops34h 15m

Phnom Penh Pochentong

Fri 1/30

7:55 am-7:55 am

1 stop37h 00m

$2,254

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Phnom Penh from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Phnom Penh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phnom Penh?

In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $985. If you aren’t able to travel to Phnom Penh during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,043.

What is the cheapest day to depart on your flight to Phnom Penh?

The cheapest day to depart from Chicago O'Hare Intl Airport to Phnom Penh is on a Monday. Travelers who choose to depart for Phnom Penh on a Monday will often find tickets for as low as $1,190. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Phnom Penh for around $1,371.

What is the cheapest time of day to depart on your flight to Phnom Penh?

According to our data, the cheapest time of day to fly to Phnom Penh is at noon. momondo users have found flights departing from Chicago O'Hare Intl Airport to Phnom Penh at noon for as low as $948. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly in the afternoon, with an average ticket price of $1,464. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Phnom Penh?

You are more likely to see cheaper flights to Phnom Penh from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,286 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Chicago O'Hare Intl Airport for as low as $978 on momondo.

When to book flights from Chicago O'Hare Intl Airport to Phnom Penh

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Phnom Penh according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Phnom Penh (ORD to PNH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Phnom Penh

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Phnom Penh. There are no popular flight routes from Chicago O'Hare Intl Airport to Phnom Penh.
Search flight deals

  • How far is Chicago O'Hare Intl to Phnom Penh Pochentong by plane?

    Chicago O'Hare Intl and Phnom Penh Pochentong are 8642.7 mi apart from one another. By plane, this route typically takes 28h 20m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport.

  • What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

    The travel and health documents you'll need for your trip to Phnom Penh Pochentong Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phnom Penh Pochentong Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Phnom Penh?

Best airlines flying from Chicago O'Hare Intl Airport to Phnom Penh

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $733Free CancellationRating
7.6
993 reviews
Search Cathay Pacific flights
Korean AirPriceFrom $845Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights
EVA AirPriceFrom $1,059Free CancellationRating
8.4
1,236 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Phnom Penh?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Phnom Penh. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Phnom Penh with flexible booking policies on momondo?

Yes. All flights to Phnom Penh from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Phnom Penh?

Once you have performed a search for Chicago to Phnom Penh flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Phnom Penh right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Phnom Penh, momondo offers a useful price alert feature which will track prices for flights to Phnom Penh from Chicago and alert you when they change.

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