BKK - SAI

฿3,387 Find Cheap Flights from Bangkok Suvarnabhumi Airport to Siem Reap – Compare and Save

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Everything you should know

Cheapest return flight
฿6,905
Typical prices: ฿6,888-฿9,345
Thai Airways
Mon 10/12Sat 15/12
BKK - SAI • Direct
Cheapest one-way flight
฿3,387
Typical prices: ฿3,611-฿5,130
Cambodia Airways
Thu 25/10
BKK - SAI • Direct
Direct flights
You can fly direct with Bangkok Airways, Cambodia Airways, and others. Average duration is 1h 20m.
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 9 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 9% price drop
Most popular
Good to know
+1
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Siem Reap!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Suvarnabhumi to Siem Reap (BKK-SAI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Suvarnabhumi to Siem Reap

Thu 10 Dec - Tue 15 Dec
Thai Airways Logo
07:45 - 08:45BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 00mdirect
Thai Airways Logo
09:50 - 10:55SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 05mdirect
฿6,905Thai Airways
Thu 29 Oct - Mon 2 Nov
Thai Airways Logo
07:45 - 08:45BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 00mdirect
Thai Airways Logo
09:50 - 10:55SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 05mdirect
฿6,905Thai Airways
Sun 7 Feb - Tue 9 Feb
Bangkok Airways Logo
07:55 - 09:15BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 20mdirect
Bangkok Airways Logo
09:55 - 11:20SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 25mdirect
฿6,938Bangkok Airways
Wed 10 Mar - Sun 14 Mar
Bangkok Airways Logo
11:20 - 12:40BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 20mdirect
Bangkok Airways Logo
09:55 - 11:20SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 25mdirect
฿6,938Bangkok Airways
Thu 29 Oct - Mon 2 Nov
Thai Airways Logo
07:45 - 08:45BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 00mdirect
Thai Airways Logo
09:50 - 10:55SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 05mdirect
฿6,938Thai Airways
Fri 15 Jan - Fri 15 Jan
Bangkok Airways Logo
07:55 - 09:15BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 20mdirect
Bangkok Airways Logo
13:20 - 14:45SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 25mdirect
฿6,971Bangkok Airways
Sat 7 Nov - Thu 12 Nov
Emirates Logo
19:50 - 21:10BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 20mdirect
Emirates Logo
23:50 - 01:10SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 20mdirect
฿7,234Emirates
Sat 7 Nov - Sat 14 Nov
Emirates Logo
19:50 - 21:10BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
1h 20mdirect
Emirates Logo
23:50 - 01:10SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
1h 20mdirect
฿7,299Emirates
Sun 25 Oct - Sun 1 Nov
Thai AirAsia Logo
07:50 - 16:05BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
8h 15m1 stop Phuket City
Thai AirAsia Logo
16:50 - 23:45SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
6h 55m1 stop Phuket City
฿10,423Thai AirAsia
Wed 13 Jan - Sat 16 Jan
Thai AirAsia Logo
07:50 - 16:05BKK  Bangkok Suvarnabhumi-SAI Siem Reap–Angkor Intl
8h 15m1 stop Phuket City
Thai AirAsia Logo
16:50 - 23:45SAI  Siem Reap–Angkor Intl-BKK Bangkok Suvarnabhumi
6h 55m1 stop Phuket City
฿10,587Thai AirAsia
Booking Insights

Price, demand, and travel trends for Bangkok Suvarnabhumi Airport to Siem Reap flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Bangkok Suvarnabhumi Airport to Siem Reap with more confidence.

How much is a return flight from Bangkok Suvarnabhumi Airport to Siem Reap?

Return flights from Bangkok Suvarnabhumi Airport to Siem Reap start at ฿6,905. Prices are typical for this route right now, with typical return fares ranging from ฿6,888 to ฿9,345. The lowest price found in the past 5 days was ฿6,905 on Thai Airways.

What's the cheapest day of the week to fly from Bangkok Suvarnabhumi Airport to Siem Reap?

Tuesday is the cheapest day of the week to fly from Bangkok Suvarnabhumi Airport to Siem Reap and is 9% cheaper than the average day. Friday is the most expensive day with flight prices 12% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Siem Reap?

  • September is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Siem Reap at ฿7,003 return.
  • July (฿8,779) and March (฿8,713) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 25% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Bangkok Suvarnabhumi Airport to Siem Reap the cheapest?

Flights from Bangkok Suvarnabhumi Airport to Siem Reap are cheapest 9 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Bangkok Suvarnabhumi Airport to Siem Reap flights

Low season

April

Cheapest flight

฿3,387
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (7% more expensive on average)
Flights from Bangkok Suvarnabhumi Airport to Siem Reap

When to book flights from Suvarnabhumi to Siem Reap

Are your dates flexible? Find out the best times to travel from Suvarnabhumi to Siem Reap based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Bangkok Suvarnabhumi Airport to Siem Reap flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airlines offer extra legroom and free seat selection on Bangkok Suvarnabhumi Airport to Siem Reap flights?

    Among airlines operating Bangkok Suvarnabhumi Airport to Siem Reap flights:

    • Bangkok Airways: offers free seat selection
    • Emirates: offers extra legroom; offers free seat selection
    • Thai Airways: offers free seat selection
    • Cambodia Airways: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Bangkok Suvarnabhumi Airport to Siem Reap?

    4 airlines operate flights between Bangkok Suvarnabhumi Airport and Siem Reap. The airlines offering direct flights on this route include:

    • Bangkok Airways
    • Cambodia Airways
    • Thai Airways
    • Emirates

  • Which airports can I use when flying from Bangkok Suvarnabhumi Airport to Siem Reap?

    Flights from Bangkok Suvarnabhumi Airport to Siem Reap usually depart from Bangkok Suvarnabhumi (BKK) and arrive at Siem Reap–Angkor Intl (SAI).

  • Which airlines include bags at no extra cost on Bangkok Suvarnabhumi Airport to Siem Reap flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Bangkok Airways: a cabin bag and a checked bag in Economy class
    • Emirates: a cabin bag and a checked bag in Economy class
    • Thai Airways: a cabin bag and a checked bag in Economy class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • How much can I save by having a stopover when flying from Bangkok Suvarnabhumi Airport to Siem Reap?

    On this route, direct and stopover fares are close on average, with direct at ฿7,704 return and stopover options via Phnom Penh Techo Intl (KTI) at ฿7,708.

  • What is the standard checked bag allowance on flights from Bangkok Suvarnabhumi Airport to Siem Reap?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿376–฿2,442 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airports do connecting flights from Bangkok Suvarnabhumi Airport to Siem Reap pass through?

    Most connecting flights from Bangkok Suvarnabhumi Airport to Siem Reap pass through Phnom Penh Techo Intl (KTI), which handles 100% of one-stop traffic on this route. Other stopover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Bangkok Suvarnabhumi Airport to Siem Reap?

    Yes. Being flexible with your travel dates can save you up to 19% on the Bangkok Suvarnabhumi Airport to Siem Reap route. Tuesday is the cheapest departure day at ฿7,069 return on average, while Friday is the most expensive at ฿8,647, a difference of ฿1,578. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from Bangkok Suvarnabhumi Airport to Siem Reap?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Bangkok Suvarnabhumi Airport to Siem Reap route, 9% of flights were delayed in the past 3 months, with delays averaging 1 hour 26 minutes.

  • How are flight departures from Bangkok Suvarnabhumi Airport to Siem Reap spread across the day?

    Morning is the busiest departure period on Bangkok Suvarnabhumi Airport to Siem Reap flights, with 50% leaving in that window. Evening departures account for 50%, Afternoon flights for 0%, and Night flights for 0%.

  • What popular places can I visit in Siem Reap?

    Wat Bo Temple is one of the most viewed places in Siem Reap on KAYAK.

  • What are the earliest and latest flights from Bangkok Suvarnabhumi Airport to Siem Reap?

    These are the earliest and latest flight times available from Bangkok Suvarnabhumi Airport to Siem Reap:

    • Earliest: departs at 07:40 and lands at 09:00
    • Latest: departs at 20:10 and lands at 21:30.

    The flight takes about 1h 20m.

  • How expensive are last-minute Bangkok Suvarnabhumi Airport to Siem Reap flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 7% above the route average of ฿7,704. Book 9 weeks before departure for the lowest fares.

  • How long is a flight from Bangkok Suvarnabhumi Airport to Siem Reap?

    A direct flight from Bangkok Suvarnabhumi Airport to Siem Reap takes 1h 20m, covering 606 km.

  • Do I need a passport to fly from Bangkok Suvarnabhumi Airport to Siem Reap?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Bangkok Suvarnabhumi Airport to Siem Reap changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿6,905 to ฿30,546. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Bangkok Suvarnabhumi Airport to Siem Reap looking right now?

    One-way fares from Bangkok Suvarnabhumi Airport to Siem Reap are currently in line with typical prices for this route. Average one-way fares are about ฿3,949.

  • How does Thai Airways's on-time performance compare to other airlines on Bangkok Suvarnabhumi Airport to Siem Reap flights?

    Thai Airways is slightly above the route average for timely arrivals, while Emirates has a lower on-time arrival rate. On-time arrival rates on Bangkok Suvarnabhumi Airport to Siem Reap flights are:

    • Thai Airways: 95% on time
    • Emirates: 93% on time
    • Bangkok Airways: 90% on time

    On average, flights on this route are punctual 91% of the time.

  • How do delay rates compare for morning and evening flights from Bangkok Suvarnabhumi Airport to Siem Reap?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much should I expect to pay for a Bangkok Suvarnabhumi Airport to Siem Reap flight?

    Return flights from Bangkok Suvarnabhumi Airport to Siem Reap range from ฿6,888 to ฿9,345, with an average of ฿7,704 over the past 12 months. Anything below ฿6,888 counts as a good deal.

Your guide to booking Bangkok Suvarnabhumi Airport to Siem Reap flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Friday. On this route, Tuesday flights average ฿7,069 – about ฿1,578 less than Friday (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 9 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Bangkok Suvarnabhumi Airport to Siem Reap trip for September. Fares historically average ฿7,003 return in that month – typically ฿1,776 less than the most expensive month, which is July (based on the last 12 months).
  • If arriving on time is high on your priority list, Thai Airways is the strongest pick on this route. 95% of Thai Airways flights from Bangkok Suvarnabhumi Airport to Siem Reap arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 91%. When flights on this route do arrive late, the average delay is 1 hour26 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.

Prefer to fly direct from Bangkok Suvarnabhumi to Siem Reap–Angkor Intl?

 
Find which airlines fly direct from Bangkok Suvarnabhumi Airport to Siem Reap–Angkor Intl Airport, which days they fly and book direct flights.

Direct departures

Bangkok Suvarnabhumi to Siem Reap–Angkor Intl

Monday

Bangkok Airways,Thai Airways

Bangkok Airways,Thai Airways

Tuesday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Wednesday

Bangkok Airways,Cambodia Airways,Thai Airways

Bangkok Airways,Cambodia Airways, +1 more

Thursday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Friday

Bangkok Airways,Thai Airways

Bangkok Airways,Thai Airways

Saturday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Sunday

Bangkok Airways,Cambodia Airways,Thai Airways

Bangkok Airways,Cambodia Airways, +1 more

See more direct flights

Direct returns

Siem Reap–Angkor Intl to Bangkok Suvarnabhumi

Monday

Bangkok Airways,Thai Airways

Bangkok Airways,Thai Airways

Tuesday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Wednesday

Bangkok Airways,Cambodia Airways,Thai Airways

Bangkok Airways,Cambodia Airways, +1 more

Thursday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Friday

Bangkok Airways,Thai Airways

Bangkok Airways,Thai Airways

Saturday

Bangkok Airways,Cambodia Airways,Emirates, +1 more

Bangkok Airways,Cambodia Airways, +2 more

Sunday

Bangkok Airways,Cambodia Airways,Thai Airways

Bangkok Airways,Cambodia Airways, +1 more

See more direct flights

More options for your flight from Suvarnabhumi to Siem Reap

Complete your trip to Siem Reap with a hotel stay or car hire