ORD - KTI

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1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Phnom Penh. You'll need to take a connecting flight to reach the destination.
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When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 37% compared to booking last minute.
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Insights
When to travel
February
Cheapest • 12% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Hong Kong Intl (HKG)
Cheapest • Avg $895 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 30m (one-way)
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Flight Deals

Cheap Flights from Chicago to Phnom Penh (ORD-KTI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Phnom Penh

Multiple Airlines Logo
ORD  Chicago O'Hare Airport-KTI Phnom Penh Techo Intl
8656 mimulti-stop
Multiple Airlines Logo
KTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Airport
8656 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Chicago O'Hare Intl Airport to Phnom Penh with more confidence.

What's the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Phnom Penh?

Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Phnom Penh, it is 9% cheaper than the average day. Monday is the most expensive day with flight prices 25% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh?

  • February is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh at $1,059 round-trip.
  • July ($1,646) and June ($1,598) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 55% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Chicago O'Hare Intl Airport to Phnom Penh the cheapest?

Flights from Chicago O'Hare Intl Airport to Phnom Penh are cheapest 18 weeks before departure. Booking in this window typically costs about 37% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Chicago O'Hare Intl Airport to Phnom Penh flights

Low season

September
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 10% lower on average.

When to book flights from Chicago to Phnom Penh

Are your dates flexible? Find out the best times to travel from Chicago to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chicago O'Hare Intl Airport to Phnom Penh flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Phnom Penh?

    Flights from Chicago O'Hare Intl Airport to Phnom Penh usually depart from Chicago O'Hare Intl (ORD) and arrive at Phnom Penh Techo Intl (KTI).

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Phnom Penh?

    Three cabin classes are available on flights from Chicago O'Hare Intl Airport to Phnom Penh:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Phnom Penh pass through?

    One-stop flights from Chicago O'Hare Intl Airport to Phnom Penh most commonly connect through:

    • Taipei City Taiwan Taoyuan Intl (TPE) - 64% of one-stop connections
    • Incheon Intl (ICN) - 22% of one-stop connections
    • Hong Kong Intl (HKG) - 10% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 3% of one-stop connections

    Taipei City Taiwan Taoyuan Intl (TPE) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Phnom Penh?

    On the Chicago O'Hare Intl Airport to Phnom Penh route, being flexible with your departure day can save you up to 28%. Sunday is the cheapest day at $1,094 round-trip on average, while Monday is the most expensive at $1,499: a $405 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How expensive are last-minute Chicago O'Hare Intl Airport to Phnom Penh flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 15% above the route average of $1,198. Book 18 weeks before departure for the lowest fares.

  • How long is a flight from Chicago O'Hare Intl Airport to Phnom Penh?

    A nonstop flight from Chicago O'Hare Intl Airport to Phnom Penh takes 0h 00m, covering 8,656 miles.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Phnom Penh?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Phnom Penh?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 21h 30m, compared with 22h 03m via Incheon Intl (ICN) and 26h 33m via Abu Dhabi Zayed Intl (AUH).

  • What is the time difference between Chicago O'Hare Intl Airport and Phnom Penh?

    Phnom Penh is 12 hours ahead of Chicago O'Hare Intl Airport (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • How much should I expect to pay for a Chicago O'Hare Intl Airport to Phnom Penh flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh range from $1,024 to $1,451, with an average of $1,198 over the past 12 months. Anything below $1,024 counts as a good deal.

Your guide to booking Chicago O'Hare Intl Airport to Phnom Penh flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average $1,094 - about $405 less than Monday (27% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 37% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Phnom Penh trip for February. Fares historically average $1,059 round-trip in that month - typically $587 less than the most expensive month, which is July (based on the last 12 months).

Everything you need to know for your flight from Chicago to Phnom Penh

Information on your arrival and departure airports

Chicago (ORD)
Phnom Penh (KTI)