When did momondo last update prices for flights from Philadelphia Airport to Siem Reap?

Prices for flights from Philadelphia Airport to Siem Reap refresh daily.

How old do you have to be to fly from Philadelphia Airport to Siem Reap?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The travel and health documents you'll need for your trip to Siem Reap 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 Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$664 Cheap Flights from Philadelphia to Siem Reap in 2026

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Find the cheapest flights from Philadelphia to Siem Reap

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 am - 12:40 pm

PHL

SAI

38h 10m

3 stops

1:20 pm - 5:32 pm

SAI

PHL

40h 12m

3 stops

$1,582Etihad Airways

Wed, Nov 4 - Sat, Nov 14

3:30 pm - 9:15 am

PHL

SAI

29h 45m

3 stops

7:25 pm - 8:08 pm

SAI

PHL

36h 43m

3 stops

$1,879Qatar Airways

Thu, Nov 12 - Sat, Nov 21

9:30 am - 3:55 pm

PHL

SAI

66h 25m

2 stops

4:45 pm - 7:45 am

SAI

PHL

51h 00m

2 stops

$1,926United Airlines

Wed, Nov 4 - Sat, Nov 14

3:30 pm - 9:15 am

PHL

SAI

29h 45m

3 stops

7:25 pm - 8:08 pm

SAI

PHL

36h 43m

3 stops

$1,981Qatar Airways

Thu, Nov 12 - Sat, Nov 21

6:10 am - 3:55 pm

PHL

SAI

45h 45m

2 stops

4:45 pm - 4:58 pm

SAI

PHL

36h 13m

2 stops

$4,497United Airlines

Thu, Nov 12 - Sat, Nov 21

9:30 am - 3:55 pm

PHL

SAI

66h 25m

2 stops

4:45 pm - 7:45 am

SAI

PHL

27h 00m

2 stops

$4,510United Airlines

Wed, Nov 4 - Sat, Nov 14

5:40 pm - 9:50 am

PHL

SAI

52h 10m

2 stops

9:55 am - 10:56 pm

SAI

PHL

49h 01m

3 stops

$9,477Multiple Airlines

Thu, Nov 12 - Sat, Nov 21

5:40 pm - 9:50 am

PHL

SAI

52h 10m

2 stops

7:25 pm - 4:15 pm

SAI

PHL

32h 50m

3 stops

$9,569Multiple Airlines

Thu, Nov 12 - Sat, Nov 21

5:40 pm - 9:50 am

PHL

SAI

52h 10m

2 stops

9:55 am - 10:56 pm

SAI

PHL

49h 01m

3 stops

$9,985Multiple Airlines

Thu, Nov 12 - Sat, Nov 21

6:30 pm - 4:55 pm

PHL

SAI

34h 25m

3 stops

11:50 pm - 2:50 pm

SAI

PHL

51h 00m

2 stops

$10,056Multiple Airlines

Wed, Nov 4 - Sat, Nov 14

Qatar Airways flights from Philadelphia to Region of Siem Reap

Our best Qatar Airways deals on Philadelphia to Region of Siem Reap flight tickets

Qatar Airways

Nov 12

PHL3:30 pmPhiladelphia

29h 45m

3 stops

SAI9:15 amSiem Reap–Angkor Intl

Nov 21

SAI7:25 pmSiem Reap–Angkor Intl

36h 43m

3 stops

PHL8:08 pmPhiladelphia

$1,879

Qatar Airways

Nov 12

PHL3:30 pmPhiladelphia

29h 45m

3 stops

SAI9:15 amSiem Reap–Angkor Intl

Nov 21

SAI7:25 pmSiem Reap–Angkor Intl

36h 43m

3 stops

PHL8:08 pmPhiladelphia

$1,981

United Airlines flights from Philadelphia to Region of Siem Reap

Our best United Airlines deals on Philadelphia to Region of Siem Reap flight tickets

United Airlines

Nov 4

PHL9:30 amPhiladelphia

66h 25m

2 stops

SAI3:55 pmSiem Reap–Angkor Intl

Nov 14

SAI4:45 pmSiem Reap–Angkor Intl

51h 00m

2 stops

PHL7:45 amPhiladelphia

$1,926

United Airlines

Nov 12

PHL6:10 amPhiladelphia

45h 45m

2 stops

SAI3:55 pmSiem Reap–Angkor Intl

Nov 21

SAI4:45 pmSiem Reap–Angkor Intl

36h 13m

2 stops

PHL4:58 pmPhiladelphia

$4,497

United Airlines

Nov 4

PHL9:30 amPhiladelphia

66h 25m

2 stops

SAI3:55 pmSiem Reap–Angkor Intl

Nov 14

SAI4:45 pmSiem Reap–Angkor Intl

27h 00m

2 stops

PHL7:45 amPhiladelphia

$4,510

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

10:30 am-12:40 pm

3 stops38h 10m

Siem Reap–Angkor Intl

Sat 11/14

1:20 pm-5:32 pm

3 stops40h 12m

$1,582

Quickest round-trip

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

3:30 pm-9:15 am

3 stops29h 45m

Siem Reap–Angkor Intl

Sat 11/21

7:25 pm-8:08 pm

3 stops36h 43m

$1,879

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

9:30 am-3:55 pm

2 stops66h 25m

Siem Reap–Angkor Intl

Sat 11/14

4:45 pm-7:45 am

2 stops51h 00m

$1,926

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

3:30 pm-9:15 am

3 stops29h 45m

Siem Reap–Angkor Intl

Sat 11/21

7:25 pm-8:08 pm

3 stops36h 43m

$1,981

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

6:10 am-3:55 pm

2 stops45h 45m

Siem Reap–Angkor Intl

Sat 11/21

4:45 pm-4:58 pm

2 stops36h 13m

$4,497

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

9:30 am-3:55 pm

2 stops66h 25m

Siem Reap–Angkor Intl

Sat 11/14

4:45 pm-7:45 am

2 stops27h 00m

$4,510

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

5:40 pm-9:50 am

2 stops52h 10m

Siem Reap–Angkor Intl

Sat 11/21

9:55 am-10:56 pm

3 stops49h 01m

$9,477

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

5:40 pm-9:50 am

2 stops52h 10m

Siem Reap–Angkor Intl

Sat 11/21

7:25 pm-4:15 pm

3 stops32h 50m

$9,569

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

5:40 pm-9:50 am

2 stops52h 10m

Siem Reap–Angkor Intl

Sat 11/21

9:55 am-10:56 pm

3 stops49h 01m

$9,985

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

6:30 pm-4:55 pm

3 stops34h 25m

Siem Reap–Angkor Intl

Sat 11/14

11:50 pm-2:50 pm

2 stops51h 00m

$10,056

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Region of Siem Reap

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 airline that flies from Philadelphia to Siem Reap?

Vietnam Airlines is the most popular carrier operating from Philadelphia to Siem Reap

Cheap Philadelphia to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Region of Siem Reap

Fastest flight time	29h 45m
Direct flights	None

The fastest flight from Philadelphia to Region of Siem Reap takes 29h 45m

There are no direct flights from Philadelphia to Region of Siem Reap. There are no popular flight routes from Philadelphia to Region of Siem Reap.

Search flight deals

Frequently asked questions about flying from Philadelphia to Siem Reap

When did momondo last update prices for flights from Philadelphia Airport to Siem Reap?
Prices for flights from Philadelphia Airport to Siem Reap refresh daily.
How old do you have to be to fly from Philadelphia Airport to Siem Reap?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The travel and health documents you'll need for your trip to Siem Reap 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 Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Siem Reap?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Siem Reap for you.

Can I find flights from Philadelphia to Siem Reap with flexible booking policies on momondo?

Yes. All flights to Siem Reap from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to Siem Reap?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from Philadelphia.

I’m not ready to book a flight from Philadelphia to Siem Reap right now. Can momondo alert me if prices change?

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

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Cheap flights from Philadelphia to Siem Reap from $664

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Siem Reap departing on 9/24. 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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Big names and deals

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Filter for what you want

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Find the cheapest flights from Philadelphia to Siem Reap

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Qatar Airways flights from Philadelphia to Region of Siem Reap

Our best Qatar Airways deals on Philadelphia to Region of Siem Reap flight tickets

United Airlines flights from Philadelphia to Region of Siem Reap

Our best United Airlines deals on Philadelphia to Region of Siem Reap flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Siem Reap that are best for you.

See travel insights to Siem Reap from

How to get the cheapest flight ticket from Philadelphia to Region of Siem Reap

What is the cheapest airline that flies from Philadelphia to Siem Reap?

Cheap Philadelphia to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Region of Siem Reap

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Siem Reap

Why use momondo?

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo

Philadelphia flight routes

According to popular flight searches on momondo this year

Region of Siem Reap flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Siem Reap

List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

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According to popular flight searches on momondo this year