Cheap Flights from Houston to Phnom Penh from US$666

Frequently Asked Questions

• What are the cheapest flights from Houston to Phnom Penh (HOU-KTI)?

  Based on Trip.com data, Qatar Airways offers one-way fares as low as US$666 on Cheapest nonstop routes (e.g. IAH to KTI on Wed, Aug 19), while Qatar Airways offers Cheapest nonstop round-trips from US$1,218 departing on Tue, Sep 15 and returning on Tue, Sep 22.

• Which airlines offer direct flights from Houston to Phnom Penh?

  At the moment, you can catch a nonstop flight from Houston to Phnom Penh with the following airlines, including: Korean Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Houston to Phnom Penh?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to Phnom Penh is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Houston to Phnom Penh?

  To find best deals on flights from Houston to Phnom Penh, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Aug 19, with one-way flights priced at just US$666.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Qatar Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Phnom Penh travel is around December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Houston (HOU) to Phnom Penh (KTI) the cheapest?

  The cheapest months to fly from Houston to Phnom Penh is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Houston to Phnom Penh on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Houston to Phnom Penh on August 18, 2026 with Qatar Airways, with prices starting at US$668.

• Which airports can I fly to for Phnom Penh from Houston?

  You can land at any one of the following hubs in Phnom Penh, with George Bush Intercontinental Airport to Techo International Airport (IAH-KTI) is by far the most common option on this route: Techo International Airport (KTI) Phnom Penh International Airport (PNH).

• Is there any time difference between Houston and Phnom Penh?

  The time difference between Phnom Penh and Houston is 13h.

• How do I change or cancel my ticket from Houston to Phnom Penh?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Houston to Phnom Penh?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Houston to Phnom Penh is US$774. Fares vary by travel date, airline and availability.

• How do I book flights from Houston to Phnom Penh on Trip.com?

  Enter Houston and Phnom Penh, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.