Cheap flights from Illinois to Phnom Penh from $425
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Phnom Penh departing on 7/31. 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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Cathay Pacific flights from Illinois to Phnom Penh
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Korean Air flights from Illinois to Phnom Penh
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How to get the cheapest flight ticket from Illinois 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, October is the cheapest month to fly from Illinois to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,002. If you aren’t able to travel to Phnom Penh during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,069.
What is the cheapest day to depart on your flight to Phnom Penh?
The cheapest day to depart from Illinois 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 Illinois 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 Illinois 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,327 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Illinois for as low as $978 on momondo.
What is the cheapest airline that flies from Illinois to Phnom Penh Pochentong?
Cathay Pacific, Korean Air, and Etihad Airways are the most popular carriers operating from Illinois to Phnom Penh Pochentong
What airlines fly to Phnom Penh?
EVA Air, Korean Air and Cathay Pacific are the top three most popular airlines that fly to Phnom Penh from Illinois according to our data. EVA Air is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Phnom Penh. Keep in mind that there are 3 different airlines that fly to Phnom Penh on a routine basis, so you have a few additional options to choose from.
Cheap Illinois to Phnom Penh flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Phnom Penh
When did momondo last update prices for flights from Illinois to Phnom Penh Pochentong Airport?
Prices for flights from Illinois to Phnom Penh Pochentong Airport refresh daily.
How many operators does momondo search for flights from Illinois to Phnom Penh Pochentong Airport?
As of June 2025, there are 3 operators available to choose from for flights from Illinois to Phnom Penh Pochentong Airport.
How old do you have to be to fly from Illinois 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 Illinois to Phnom Penh Pochentong Airport.
What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?
The required travel and health documents for your Phnom Penh Pochentong Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phnom Penh Pochentong Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Illinois to Phnom Penh
Compare and see reviews for airlines that fly from Illinois to Phnom Penh with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $733 | Free Cancellation | Rating 7.5 894 reviews | |||
| PriceFrom $847 | Free Cancellation | Rating 8.4 1,090 reviews | |||
| PriceFrom $1,066 | Free Cancellation | Rating 8.4 1,205 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Phnom Penh?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Phnom Penh. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Illinois to Phnom Penh with flexible booking policies on momondo?
Flights from Illinois to Phnom Penh with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Illinois to Phnom Penh?
Once you have performed a search for Illinois 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 Illinois 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 Illinois and alert you when they change.