How long does it take to fly to Siem Reap?

On average, it takes 26h 17m to fly from Missouri to Siem Reap if you fly out of St. Louis (the most popular airport in Missouri) and into Siem Reap (the most popular airport in Siem Reap). If you’re flying out of Kansas City and into Siem Reap, then the flight time is around 43h 32m.

When did momondo last update prices for flights from Missouri to Siem Reap–Angkor Intl Airport?

Prices for flights from Missouri to Siem Reap–Angkor Intl Airport refresh daily.

How old do you have to be to fly from Missouri to Siem Reap–Angkor Intl Airport?

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 Missouri to Siem Reap–Angkor Intl Airport.

What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

The travel and health documents required for your trip to Siem Reap–Angkor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap–Angkor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$724 Cheap Flights from Missouri to Siem Reap in 2026

Find the cheapest flights from Missouri to Siem Reap

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:38 am - 9:40 am

MCI

SAI

38h 02m

2 stops

10:30 am - 9:52 pm

SAI

MCI

47h 22m

2 stops

$1,611Singapore Airlines

Tue, Oct 6 - Wed, Oct 14

7:38 am - 9:40 am

MCI

SAI

38h 02m

2 stops

12:55 pm - 3:39 pm

SAI

MCI

38h 44m

2 stops

$1,632Multiple Airlines

Tue, Oct 6 - Thu, Oct 15

7:38 am - 3:10 pm

MCI

SAI

43h 32m

2 stops

10:30 am - 4:34 pm

SAI

MCI

42h 04m

2 stops

$1,643Singapore Airlines

Wed, Oct 7 - Wed, Oct 14

7:38 am - 3:10 pm

MCI

SAI

43h 32m

2 stops

9:40 am - 3:39 pm

SAI

MCI

41h 59m

2 stops

$1,664Multiple Airlines

Wed, Oct 7 - Thu, Oct 15

7:30 am - 9:30 pm

MCI

SAI

50h 00m

3 stops

11:50 pm - 9:07 am

SAI

MCI

45h 17m

3 stops

$1,746Emirates

Tue, Oct 6 - Thu, Oct 15

4:17 pm - 6:55 pm

MCI

SAI

38h 38m

3 stops

7:35 pm - 8:17 pm

SAI

MCI

36h 42m

3 stops

$1,753Qatar Airways

Wed, Oct 7 - Thu, Oct 15

3:14 pm - 5:10 pm

MCI

SAI

61h 56m

3 stops

9:40 am - 3:39 pm

SAI

MCI

41h 59m

2 stops

$1,820Multiple Airlines

Wed, Oct 7 - Thu, Oct 15

7:05 pm - 9:30 pm

STL

SAI

62h 25m

3 stops

11:50 pm - 9:26 pm

SAI

STL

33h 36m

3 stops

$2,427Emirates

Sat, Jul 11 - Sat, Jul 18

7:38 am - 9:40 am

MCI

SAI

38h 02m

2 stops

10:30 am - 11:44 pm

SAI

MCI

49h 14m

3 stops

$2,908United Airlines

Wed, Oct 7 - Wed, Oct 14

11:22 am - 9:40 am

MCI

SAI

58h 18m

3 stops

10:30 am - 11:44 pm

SAI

MCI

49h 14m

3 stops

$2,936United Airlines

Tue, Oct 6 - Wed, Oct 14

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Singapore Airlines flights from Missouri to Siem Reap

Our best Singapore Airlines deals on Missouri to Siem Reap flight tickets

Singapore Airlines

Oct 6

MCI7:38 amKansas City

38h 02m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Oct 14

SAI10:30 amSiem Reap–Angkor Intl

47h 22m

2 stops

MCI9:52 pmKansas City

$1,611

Singapore Airlines

Oct 7

MCI7:38 amKansas City

43h 32m

2 stops

SAI3:10 pmSiem Reap–Angkor Intl

Oct 14

SAI10:30 amSiem Reap–Angkor Intl

42h 04m

2 stops

MCI4:34 pmKansas City

$1,643

Emirates flights from Missouri to Siem Reap

Our best Emirates deals on Missouri to Siem Reap flight tickets

Emirates

Oct 6

MCI7:30 amKansas City

50h 00m

3 stops

SAI9:30 pmSiem Reap–Angkor Intl

Oct 15

SAI11:50 pmSiem Reap–Angkor Intl

45h 17m

3 stops

MCI9:07 amKansas City

$1,746

Emirates

Jul 11

STL7:05 pmLambert-St Louis

62h 25m

3 stops

SAI9:30 pmSiem Reap–Angkor Intl

Jul 18

SAI11:50 pmSiem Reap–Angkor Intl

33h 36m

3 stops

STL9:26 pmLambert-St Louis

$2,427

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Tue 10/6

7:38 am-9:40 am

2 stops38h 02m

Siem Reap–Angkor Intl

Wed 10/14

10:30 am-9:52 pm

2 stops47h 22m

$1,611

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Tue 10/6

7:38 am-9:40 am

2 stops38h 02m

Siem Reap–Angkor Intl

Thu 10/15

12:55 pm-3:39 pm

2 stops38h 44m

$1,632

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Wed 10/7

7:38 am-3:10 pm

2 stops43h 32m

Siem Reap–Angkor Intl

Wed 10/14

10:30 am-4:34 pm

2 stops42h 04m

$1,643

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Wed 10/7

7:38 am-3:10 pm

2 stops43h 32m

Siem Reap–Angkor Intl

Thu 10/15

9:40 am-3:39 pm

2 stops41h 59m

$1,664

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Tue 10/6

7:30 am-9:30 pm

3 stops50h 00m

Siem Reap–Angkor Intl

Thu 10/15

11:50 pm-9:07 am

3 stops45h 17m

$1,746

Quickest round-trip

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Wed 10/7

4:17 pm-6:55 pm

3 stops38h 38m

Siem Reap–Angkor Intl

Thu 10/15

7:35 pm-8:17 pm

3 stops36h 42m

$1,753

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Wed 10/7

3:14 pm-5:10 pm

3 stops61h 56m

Siem Reap–Angkor Intl

Thu 10/15

9:40 am-3:39 pm

2 stops41h 59m

$1,820

St. LouisSiem Reap

STL - SAI

STLSAI

Lambert-St Louis

Sat 7/11

7:05 pm-9:30 pm

3 stops62h 25m

Siem Reap–Angkor Intl

Sat 7/18

11:50 pm-9:26 pm

3 stops33h 36m

$2,427

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Wed 10/7

7:38 am-9:40 am

2 stops38h 02m

Siem Reap–Angkor Intl

Wed 10/14

10:30 am-11:44 pm

3 stops49h 14m

$2,908

Kansas CitySiem Reap

MCI - SAI

MCISAI

Kansas City

Tue 10/6

11:22 am-9:40 am

3 stops58h 18m

Siem Reap–Angkor Intl

Wed 10/14

10:30 am-11:44 pm

3 stops49h 14m

$2,936

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How to get the cheapest flight ticket from Missouri to 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

Airlines

Other information

What is the cheapest airline that flies from Missouri to Siem Reap–Angkor Intl?

Singapore Airlines and Asiana Airlines are the most popular carriers operating from Missouri to Siem Reap–Angkor Intl

Cheap Missouri to Siem Reap flight deals and tips

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

Fastest flight time	26h 17m
Direct flights	None

The fastest flight from Missouri to Siem Reap takes 26h 17m

There are no direct flights from Missouri to Siem Reap. There are no popular flight routes from Missouri to Siem Reap.

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Frequently asked questions about flying from Missouri to Siem Reap

When did momondo last update prices for flights from Missouri to Siem Reap–Angkor Intl Airport?
Prices for flights from Missouri to Siem Reap–Angkor Intl Airport refresh daily.
How old do you have to be to fly from Missouri to Siem Reap–Angkor Intl Airport?
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 Missouri to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The travel and health documents required for your trip to Siem Reap–Angkor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap–Angkor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to Siem Reap. momondo saves you time and could save you money on your trip.

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

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

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

momondo provides multiple filters to help you find the best flight to Siem Reap from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Siem Reap from Missouri are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Missouri to Siem Reap from $724

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Siem Reap departing on 9/2. 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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Singapore Airlines flights from Missouri to Siem Reap

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Cheap Missouri to Siem Reap flight deals and tips

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

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Frequently asked questions about flying from Missouri to Siem Reap

Why use momondo?

An easier way to manage your 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 Cambodia

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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