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.

$704 Cheap Flights from Philadelphia to Siem Reap in 2026

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.

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

10:20 am - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

40h 30m2 stops Ho Chi Minh City Doha Hamad Intl

$1,203Multiple Airlines

Sun, Oct 11 - Fri, Nov 6

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

10:20 am - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

40h 30m2 stops Ho Chi Minh City Doha Hamad Intl

$1,203Multiple Airlines

Mon, Oct 12 - Fri, Nov 6

9:30 pm - 5:55 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 25m2 stops Doha Hamad Intl Ho Chi Minh City

7:15 pm - 2:30 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

54h 15m2 stops Ho Chi Minh City Doha Hamad Intl

$1,219Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Sat, Oct 10 - Fri, Nov 6

9:30 pm - 5:10 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

32h 40m2 stops Doha Hamad Intl Hanoi Noibai

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Mon, Oct 12 - Sat, Nov 7

9:30 pm - 5:10 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

32h 40m2 stops Doha Hamad Intl Hanoi Noibai

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Mon, Oct 12 - Sun, Nov 1

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Sun, Oct 11 - Sat, Nov 7

9:30 pm - 5:10 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

32h 40m2 stops Doha Hamad Intl Hanoi Noibai

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Mon, Oct 12 - Sun, Nov 8

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

3:10 pm - 2:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

35h 40m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Sun, Oct 11 - Sun, Nov 8

9:30 pm - 6:20 pmPHL Philadelphia-SAI Siem Reap–Angkor Intl

33h 50m2 stops Doha Hamad Intl Ho Chi Minh City

10:20 am - 3:50 pmSAI Siem Reap–Angkor Intl-PHL Philadelphia

40h 30m2 stops Ho Chi Minh City Doha Hamad Intl

$1,243Multiple Airlines

Sun, Oct 11 - Sun, Nov 1

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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

Lufthansa

Oct 27

PHL6:40 pmPhiladelphia

28h 15m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Nov 16

SAI4:50 pmSiem Reap–Angkor Intl

35h 15m

2 stops

PHL4:05 pmPhiladelphia

$1,311

Lufthansa

Oct 11

PHL5:40 pmPhiladelphia

53h 00m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Nov 2

SAI4:50 pmSiem Reap–Angkor Intl

35h 15m

2 stops

PHL4:05 pmPhiladelphia

$1,321

Lufthansa

Oct 19

PHL5:40 pmPhiladelphia

29h 00m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Nov 10

SAI4:50 pmSiem Reap–Angkor Intl

59h 15m

2 stops

PHL4:05 pmPhiladelphia

$1,332

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

Oct 4

PHL9:30 pmPhiladelphia

27h 45m

2 stops

SAI12:15 pmSiem Reap–Angkor Intl

Oct 24

SAI7:35 pmSiem Reap–Angkor Intl

31h 15m

2 stops

PHL3:50 pmPhiladelphia

$1,326

Qatar Airways

Oct 4

PHL9:30 pmPhiladelphia

24h 30m

2 stops

SAI9:00 amSiem Reap–Angkor Intl

Oct 23

SAI7:35 pmSiem Reap–Angkor Intl

29h 55m

2 stops

PHL2:30 pmPhiladelphia

$1,339

Qatar Airways

Dec 2

PHL8:45 pmPhiladelphia

27h 55m

2 stops

SAI12:40 pmSiem Reap–Angkor Intl

Dec 25

SAI7:25 pmSiem Reap–Angkor Intl

31h 25m

2 stops

PHL2:50 pmPhiladelphia

$1,357

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 Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sun 10/11

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Fri 11/6

10:20 am-2:50 pm

2 stops40h 30m

$1,203

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Mon 10/12

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Fri 11/6

10:20 am-2:50 pm

2 stops40h 30m

$1,203

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Tue 10/13

9:30 pm-5:55 pm

2 stops33h 25m

Siem Reap–Angkor Intl

Tue 10/20

7:15 pm-2:30 pm

2 stops54h 15m

$1,219

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 10/10

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Fri 11/6

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

Quickest round-trip

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Mon 10/12

9:30 pm-5:10 pm

2 stops32h 40m

Siem Reap–Angkor Intl

Sat 11/7

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Mon 10/12

9:30 pm-5:10 pm

2 stops32h 40m

Siem Reap–Angkor Intl

Sun 11/1

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sun 10/11

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Sat 11/7

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Mon 10/12

9:30 pm-5:10 pm

2 stops32h 40m

Siem Reap–Angkor Intl

Sun 11/8

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sun 10/11

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Sun 11/8

3:10 pm-2:50 pm

2 stops35h 40m

$1,243

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sun 10/11

9:30 pm-6:20 pm

2 stops33h 50m

Siem Reap–Angkor Intl

Sun 11/1

10:20 am-3:50 pm

2 stops40h 30m

$1,243

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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?

Qatar Airways and Etihad Airways are the most popular carriers 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

Best Price Found	$704
Fastest flight time	24h 30m
Direct flights	None

The best one-way flight to Region of Siem Reap from Philadelphia in the past 72 hours is $704. The best round-trip flight deal from Philadelphia to Region of Siem Reap found on momondo in the last 72 hours is $1,203.

The fastest flight from Philadelphia to Region of Siem Reap takes 24h 30m

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 $704

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 10/22. 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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Lufthansa flights from Philadelphia to Region of Siem Reap

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

Qatar Airways flights from Philadelphia to Region of Siem Reap

Our best Qatar Airways 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

Best Price Found

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

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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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