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.

$977 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.

8:30 pm - 6:10 pm

PHL

SAI

34h 40m

2 stops

7:30 pm - 9:00 am

SAI

PHL

48h 30m

2 stops

$1,352Multiple Airlines

Wed, May 13 - Mon, May 25

8:30 pm - 1:15 pm

PHL

SAI

29h 45m

2 stops

12:55 pm - 9:05 am

SAI

PHL

31h 10m

2 stops

$1,752Multiple Airlines

Sat, Apr 25 - Sun, May 3

9:55 am - 9:40 am

PHL

SAI

36h 45m

3 stops

10:30 am - 7:50 am

SAI

PHL

32h 20m

2 stops

$1,849United Airlines

Wed, May 13 - Mon, May 25

4:25 pm - 9:30 pm

PHL

SAI

66h 05m

3 stops

12:55 pm - 9:05 am

SAI

PHL

55h 10m

2 stops

$2,123Multiple Airlines

Sat, Apr 25 - Sun, May 3

5:40 pm - 6:45 pm

PHL

SAI

38h 05m

3 stops

7:30 pm - 4:05 pm

SAI

PHL

31h 35m

3 stops

$2,424Austrian Airlines

Wed, May 13 - Mon, May 25

3:30 pm - 6:45 pm

PHL

SAI

40h 15m

3 stops

7:30 pm - 4:05 pm

SAI

PHL

55h 35m

3 stops

$3,314Lufthansa

Sat, Apr 25 - Sun, May 3

3:30 pm - 6:45 pm

PHL

SAI

40h 15m

3 stops

4:00 pm - 4:05 pm

SAI

PHL

59h 05m

2 stops

$3,403Lufthansa

Sat, Apr 25 - Sun, May 3

Lufthansa flights from Philadelphia to Region of Siem Reap

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

Lufthansa

Apr 25

PHL3:30 pmPhiladelphia

40h 15m

3 stops

SAI6:45 pmSiem Reap–Angkor Intl

May 3

SAI7:30 pmSiem Reap–Angkor Intl

55h 35m

3 stops

PHL4:05 pmPhiladelphia

$3,314

Lufthansa

Apr 25

PHL3:30 pmPhiladelphia

40h 15m

3 stops

SAI6:45 pmSiem Reap–Angkor Intl

May 3

SAI4:00 pmSiem Reap–Angkor Intl

59h 05m

2 stops

PHL4:05 pmPhiladelphia

$3,403

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

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 5/13

8:30 pm-6:10 pm

2 stops34h 40m

Siem Reap–Angkor Intl

Mon 5/25

7:30 pm-9:00 am

2 stops48h 30m

$1,352

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 4/25

8:30 pm-1:15 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Sun 5/3

12:55 pm-9:05 am

2 stops31h 10m

$1,752

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 5/13

9:55 am-9:40 am

3 stops36h 45m

Siem Reap–Angkor Intl

Mon 5/25

10:30 am-7:50 am

2 stops32h 20m

$1,849

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 4/25

4:25 pm-9:30 pm

3 stops66h 05m

Siem Reap–Angkor Intl

Sun 5/3

12:55 pm-9:05 am

2 stops55h 10m

$2,123

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 5/13

5:40 pm-6:45 pm

3 stops38h 05m

Siem Reap–Angkor Intl

Mon 5/25

7:30 pm-4:05 pm

3 stops31h 35m

$2,424

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 4/25

3:30 pm-6:45 pm

3 stops40h 15m

Siem Reap–Angkor Intl

Sun 5/3

7:30 pm-4:05 pm

3 stops55h 35m

$3,314

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 4/25

3:30 pm-6:45 pm

3 stops40h 15m

Siem Reap–Angkor Intl

Sun 5/3

4:00 pm-4:05 pm

2 stops59h 05m

$3,403

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Fri 3/13

7:04 pm-4:05 pm

3 stops58h 01m

$977

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Fri 3/13

6:22 pm-3:55 pm

2 stops58h 33m

$1,706

Flights are sorted by cheapest round-trip flights first.

Sorted 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?

Singapore 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	35h 15m
Direct flights	None

The fastest flight from Philadelphia to Region of Siem Reap takes 35h 15m

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

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 $977

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 3/13. 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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Filter for what you want

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Lufthansa flights from Philadelphia to Region of Siem Reap

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

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

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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

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

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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