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.

$809 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 - 1:15 pm

PHL

SAI

29h 45m

2 stops

9:35 am - 9:00 am

SAI

PHL

34h 25m

2 stops

$1,307Multiple Airlines

Mon, Sep 14 - Wed, Sep 30

8:30 pm - 12:15 pm

PHL

SAI

28h 45m

2 stops

9:45 pm - 9:00 am

SAI

PHL

46h 15m

2 stops

$1,433Multiple Airlines

Tue, Oct 6 - Fri, Oct 23

8:30 pm - 6:55 pm

PHL

SAI

35h 25m

2 stops

9:45 pm - 9:00 am

SAI

PHL

46h 15m

2 stops

$1,451Multiple Airlines

Tue, Oct 6 - Fri, Oct 23

8:30 pm - 9:00 am

PHL

SAI

25h 30m

2 stops

3:10 pm - 9:00 am

SAI

PHL

28h 50m

3 stops

$1,569Multiple Airlines

Mon, Sep 14 - Wed, Sep 30

7:00 pm - 12:15 pm

PHL

SAI

30h 15m

3 stops

9:40 am - 9:00 am

SAI

PHL

34h 20m

2 stops

$1,754Qatar Airways

Tue, Oct 6 - Fri, Oct 23

8:24 am - 7:05 pm

PHL

SAI

47h 41m

3 stops

9:45 am - 6:52 pm

SAI

PHL

44h 07m

3 stops

$1,778Etihad Airways

Wed, May 13 - Fri, May 22

8:30 pm - 4:25 pm

PHL

SAI

32h 55m

3 stops

9:45 pm - 9:00 am

SAI

PHL

46h 15m

2 stops

$1,796Multiple Airlines

Tue, Oct 6 - Fri, Oct 23

12:50 pm - 9:30 pm

PHL

SAI

45h 40m

3 stops

11:50 pm - 3:38 pm

SAI

PHL

50h 48m

3 stops

$2,104Multiple Airlines

Thu, May 14 - Thu, May 21

3:20 pm - 7:05 pm

PHL

SAI

40h 45m

3 stops

1:05 pm - 12:58 am

SAI

PHL

46h 53m

3 stops

$2,316Qatar Airways

Thu, May 14 - Fri, May 22

7:16 pm - 9:40 am

PHL

SAI

51h 24m

2 stops

10:30 am - 5:35 am

SAI

PHL

54h 05m

2 stops

$2,396Multiple Airlines

Wed, May 13 - Fri, May 22

Austrian Airlines flights from Philadelphia to Region of Siem Reap

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

Austrian Airlines

Sep 14

PHL5:40 pmPhiladelphia

38h 15m

3 stops

SAI6:55 pmSiem Reap–Angkor Intl

Sep 30

SAI12:55 pmSiem Reap–Angkor Intl

38h 10m

3 stops

PHL4:05 pmPhiladelphia

$2,440

Austrian Airlines

Oct 6

PHL5:40 pmPhiladelphia

38h 15m

3 stops

SAI6:55 pmSiem Reap–Angkor Intl

Oct 23

SAI12:55 pmSiem Reap–Angkor Intl

44h 51m

3 stops

PHL10:46 pmPhiladelphia

$8,735

British Airways flights from Philadelphia to Region of Siem Reap

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

British Airways

May 11

PHL7:35 pmPhiladelphia

36h 30m

2 stops

SAI7:05 pmSiem Reap–Angkor Intl

May 22

SAI7:45 pmSiem Reap–Angkor Intl

27h 25m

2 stops

PHL12:10 pmPhiladelphia

$2,633

British Airways

May 13

PHL7:35 pmPhiladelphia

36h 30m

2 stops

SAI7:05 pmSiem Reap–Angkor Intl

May 22

SAI7:45 pmSiem Reap–Angkor Intl

27h 25m

2 stops

PHL12:10 pmPhiladelphia

$2,634

British Airways

May 15

PHL10:05 pmPhiladelphia

34h 00m

2 stops

SAI7:05 pmSiem Reap–Angkor Intl

May 20

SAI7:45 pmSiem Reap–Angkor Intl

30h 40m

2 stops

PHL3:25 pmPhiladelphia

$2,743

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

Mon 9/14

8:30 pm-1:15 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Wed 9/30

9:35 am-9:00 am

2 stops34h 25m

$1,307

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Tue 10/6

8:30 pm-12:15 pm

2 stops28h 45m

Siem Reap–Angkor Intl

Fri 10/23

9:45 pm-9:00 am

2 stops46h 15m

$1,433

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Tue 10/6

8:30 pm-6:55 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Fri 10/23

9:45 pm-9:00 am

2 stops46h 15m

$1,451

Quickest round-trip

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Mon 9/14

8:30 pm-9:00 am

2 stops25h 30m

Siem Reap–Angkor Intl

Wed 9/30

3:10 pm-9:00 am

3 stops28h 50m

$1,569

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Tue 10/6

7:00 pm-12:15 pm

3 stops30h 15m

Siem Reap–Angkor Intl

Fri 10/23

9:40 am-9:00 am

2 stops34h 20m

$1,754

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 5/13

8:24 am-7:05 pm

3 stops47h 41m

Siem Reap–Angkor Intl

Fri 5/22

9:45 am-6:52 pm

3 stops44h 07m

$1,778

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Tue 10/6

8:30 pm-4:25 pm

3 stops32h 55m

Siem Reap–Angkor Intl

Fri 10/23

9:45 pm-9:00 am

2 stops46h 15m

$1,796

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 5/14

12:50 pm-9:30 pm

3 stops45h 40m

Siem Reap–Angkor Intl

Thu 5/21

11:50 pm-3:38 pm

3 stops50h 48m

$2,104

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 5/14

3:20 pm-7:05 pm

3 stops40h 45m

Siem Reap–Angkor Intl

Fri 5/22

1:05 pm-12:58 am

3 stops46h 53m

$2,316

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 5/13

7:16 pm-9:40 am

2 stops51h 24m

Siem Reap–Angkor Intl

Fri 5/22

10:30 am-5:35 am

2 stops54h 05m

$2,396

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?

Singapore Airlines and United Airlines 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

Fastest flight time	28h 45m
Direct flights	None

The fastest flight from Philadelphia to Region of Siem Reap takes 28h 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 $809

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 5/14. 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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Find the cheapest flights from Philadelphia to Siem Reap

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Austrian Airlines flights from Philadelphia to Region of Siem Reap

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

British Airways flights from Philadelphia to Region of Siem Reap

Our best British 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

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

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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