$522 Cheap Flights from London to Siem Reap–Angkor International Airport
One-way
Departing from
London
Going to
Siem Reap–Angkor International Airport
Siem Reap (SAI)
Cambodia • April, 2026
84% AI deal score
$1,110 $596
Siem Reap (SAI)
Cambodia • May, 2026
81% AI deal score
$1,110 $522
Siem Reap (SAI)
Cambodia • May, 2026
76% AI deal score
$1,110 $598
Siem Reap (SAI)
Cambodia • April, 2026
56% AI deal score
$669
Siem Reap (SAI)
Cambodia • April, 2026
56% AI deal score
$671
This is the lowest one-way flight price found by RatePunk users in the last 24 hours for a flight going to Siem Reap–Angkor International Airport. Fares are subject to change and may not be available for all dates. (Data last updated 4/8/2026).
Popular airlines to Siem Reap–Angkor International Airport
Cathay Pacific
Emirates Airlines
Royal Flying Doctor Service
Shanghai Airlines
Kitty Hawk Aircargo
Qatar Airways
Singapore Airlines Cargo
Raya Airways
568,716 searches in the past 7 days on RatePunk
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Top Cheap Flight Deals from London to Siem Reap–Angkor International Airport
The cheapest time to fly to Siem Reap–Angkor International Airport
Ready to jet to Siem Reap–Angkor International Airport on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Last-Minute Flights from London to Siem Reap–Angkor International Airport
Need to get to Siem Reap–Angkor International Airport ASAP? Even if you're booking a flight on short notice, there are often last-minute deals available:
Next 2 weeks deals
Last Minute Flight Deals!
We found last-minute flight deals to Siem Reap, Cambodia starting from $658, departing in the next two weeks.
⌛ Last-Minute
London - SAI
A great last-minute steal for a cross-country flight.
Found 2 days ago
$669
one-way
⌛ Last-Minute
London - SAI
A great last-minute steal for a cross-country flight.
Found 4 days ago
$658
one-way
Tip: If you don’t see your city listed, try a quick search anyway – new deals appear daily. Airlines sometimes slash prices a few days before departure to avoid empty seats.
Keep in mind, while last-minute fares can be lucky finds, booking about a month in advance generally yields cheaper flights on average. If you have flexibility, try to plan ahead. But if an unexpected trip to Siem Reap–Angkor International Airport pops up, check our site – you might get lucky with a sudden fare drop.
Facts About Flights from London to Siem Reap
To help you plan your journey, here are some quick Siem Reap flight facts and tips.
Siem Reap airports
Siem Reap–Angkor International Airport (SAI) is the primary gateway to the world-renowned Angkor Wat temple complex and surrounding Siem Reap region of Cambodia. As a modern international airport, SAI offers a range of services and facilities to cater to both domestic and international travelers. Passengers can expect amenities such as duty-free shopping, restaurants, comfortable lounges, and efficient transportation options to and from Siem Reap city. Numerous airlines operate from SAI, connecting Siem Reap to major cities across Asia and beyond, facilitating tourism and business travel to this culturally rich destination.
Pro tip: search “Siem Reap (Any)” to see fares to all Siem Reap airports – sometimes one is cheaper than the others on your dates.
Insights for flights to Siem Reap–Angkor International Airport
Cheapest airport
Kuala Lumpur (KUL)
If you're trying to snag the best deal to Siem Reap–Angkor International Airport (SAI), keep an eye on flights from Kuala Lumpur (KUL). This bustling hub is one of Southeast Asia's major airports, offering a wide array of airlines and routes that can lead to some sweet savings. Plus, who wouldn't want to explore Kuala Lumpur while you're at it?
Nonstop vs. 1-stop
20+ cities
Siem Reap–Angkor International Airport is a secondary airport that offers routes to over 20 cities; some of the most popular routes include connections to Phnom Penh, Ho Chi Minh City, and Bangkok, making it easier to explore Southeast Asia!
Number of airlines
10+ airlines
Siem Reap–Angkor International Airport is served by more than 10 airlines, with popular choices including full-service carriers like Singapore Airlines and Bangkok Airways, along with low-cost options such as AirAsia and Scoot.
Typical price range (round-trip)
$500 - $1200
Dreaming of exploring the ancient temples of Angkor Wat? Flights to Siem Reap–Angkor International Airport typically range from $500 to $1200. Prices can fluctuate depending on the season, with peak travel times like the dry season (November to March) often commanding higher fares due to ideal weather conditions. Keep an eye on shoulder seasons for potential sweet spots!
Flight frequency
100+ flights
Flights to Siem Reap–Angkor International Airport operate daily, with increased frequency during peak tourist seasons and holidays. You'll find the most options during the day, allowing you to pick a flight that perfectly aligns with your travel itinerary!
SAI Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
SAI airport insights
Best days to catch a deal
Wed, Thur
Based on the provided data, Wednesday has the most deals for Siem Reap–Angkor International Airport. Tuesday has the least amount of deals, so it may not be the best day to search for cheap flights.
Avg. deal survival time
10.9 hours
Deals for Siem Reap–Angkor International Airport typically last around 10.9 hours. This means you should book quickly when you find a deal you like!
Rare deal frequency
12 deals
We found 12 rare deals for Siem Reap–Angkor International Airport in the past month, thanks to our advanced AI-powered system. These deals, which received an AI Deal Score of 90+, usually consist of mistake fares, special promotions, or ultra-discounts.
Average price drop
-55%
The average price drop for flights to Siem Reap–Angkor International Airport is 54.7%, potentially saving you a significant amount on airfare. This substantial decrease suggests that waiting for prices to drop could lead to considerable savings for your trip.
Next 4 weeks: deal forecast
Siem Reap-Angkor International Airport Next Month Forecast
Based on current trends, flights to Siem Reap–Angkor International Airport are expected to remain relatively stable next month. There are no significant price drops or increases anticipated.
Top 5 biggest price drops (last 3 months)
Found on April 4
Puerto Princesa - SAI
$1,095 → $283
74%
Found on April 5
Davao - SAI
$1,200 → $309
74%
Found on April 4
Zürich - SAI
$2,025 → $542
73%
Found on April 4
Darwin - SAI
$1,105 → $321
71%
Found on April 1
Ottawa - SAI
$5,850 → $1,767
70%
Check these nearby airports too
Looking for more options? These airports near SAI sometimes drop rare deals too:
Phnom Penh International (PNH)
~12 rare deals/month
Tan Son Nhat International (SGN)
~5 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially PNH and SGN for long-haul deal surprises.
When Is the Best Time to Fly from London to Siem Reap–Angkor International Airport
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to Siem Reap–Angkor International Airport:
Cheapest month
November
Cheapest month
November is the cheapest month to fly to Siem Reap, offering a sweet spot of pleasant weather and fewer tourists. You'll find comfortable temperatures, perfect for exploring the magnificent Angkor Wat and other ancient temples. Plus, with fewer crowds, you can enjoy a more intimate experience of this fascinating city.
Best day to book
Tuesday
Best day to book
Tuesday is your golden ticket to snagging the best flight deals to Siem Reap! Airlines often release new deals early in the week, making Tuesday the prime day to pounce. Booking on this day could save you a significant amount, leaving you with more Khmer Riel to spend on delicious street food and souvenirs.
Cheapest days to fly
Wednesday
Cheapest days to fly
Flying to Siem Reap on a Wednesday can be lighter on your wallet. Mid-week flights tend to be less popular, prompting airlines to offer lower fares. So, consider starting your Cambodian adventure mid-week to save some money.
Advance booking sweet spot
2 months
Advance booking sweet spot
Booking your flight to Siem Reap about 2 months in advance hits the sweet spot for balancing cost and availability. This timeframe gives you a good chance to secure affordable tickets while still having plenty of flight options to choose from. Plan ahead and reap the rewards!
Seasonal considerations
Distinct
Seasonal considerations
Seasonal considerations play a distinct role in flight prices to Siem Reap. The dry season (November to April) generally sees higher demand and prices due to the favorable weather. Traveling during the wet season (May to October) can offer cheaper flights, but be prepared for rain and humidity.
TL;DR: Fly to Siem Reap in November for the best deals and pleasant weather. Book your flights on a Tuesday and fly on a Wednesday to save even more. Aim to book about 2 months in advance for optimal prices and availability. Be aware that the dry season is more expensive. Enjoy exploring the temples and culture without breaking the bank!
Siem Reap Airports & Ground Transportation
One big question for travelers is which Siem Reap airport to fly into. Here’s a quick guide to Siem Reap’s airports and how to get to the city from each:
Siem Reap International Airport (REP)
Siem Reap International Airport is the primary gateway to the temples of Angkor and the wonders of Siem Reap. Though smaller than some international hubs, it offers a comfortable and efficient travel experience. Inside, you'll find a selection of shops, restaurants, and essential services to cater to your needs. Getting to Siem Reap town is a breeze, with readily available taxis, tuk-tuks, and pre-booked transfer services just outside the arrival hall. The ride to most hotels takes around 15-20 minutes, offering your first glimpse of the Cambodian countryside.
Tip: Bargain with tuk-tuk drivers before you hop on to ensure a fair price to town!
Other airports
While Siem Reap is easily accessible via its own international airport, consider flying into nearby cities for potential deals! For instance, Phnom Penh International Airport is about 140 miles away, but ground transportation can take 4-6 hours, and Bangkok (Suvarnabhumi or Don Mueang) are farther with more expensive connecting flights or long bus/train rides. Weigh the cost savings against the added travel time and expense to reach Siem Reap.
Airport transfers
Siem Reap offers convenient airport transportation options including taxis, tuk-tuks, and pre-booked private transfers, ensuring a hassle-free journey to your hotel. Taxis are readily available, tuk-tuks provide a fun and affordable experience, and private transfers offer comfort and personalized service. No matter your preference, getting from the airport to your Siem Reap adventure is a breeze!
What to Do in Siem Reap
Siem Reap isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in Siem Reap, organized by interest:
Sightseeing & landmarks
Get ready to explore the mystical Angkor Wat and the ancient city of Angkor Thom, where history whispers from every stone. Don't forget to catch the sunrise over the temples for a truly magical experience!
Arts & culture
Immerse yourself in the vibrant culture of Siem Reap by witnessing traditional Apsara dances and exploring local artisan workshops. Discover the intricate carvings and ancient stories that adorn the temples, reflecting Cambodia's rich heritage.
Food & nightlife
Indulge in the tantalizing flavors of Khmer cuisine, from savory Amok to refreshing Lok Lak. As the sun sets, Siem Reap comes alive with bustling night markets and lively bars, perfect for a taste of local nightlife.
Shopping & fashion
Unearth unique treasures at Siem Reap's vibrant markets, where you can haggle for handcrafted souvenirs, silk scarves, and traditional clothing. From intricate jewelry to stylish apparel, there's something for every fashion enthusiast.
Nearby getaways
Venture beyond Siem Reap to discover the serene beauty of Tonle Sap Lake, Southeast Asia's largest freshwater lake. Explore floating villages, witness unique ecosystems, and experience the authentic rural life of Cambodia.
No matter your interest – be it art, food, nightlife, or nature – Siem Reap has something for everyone. And the best part? Many events and attractions refresh throughout the year, so there’s always something new to experience each visit.
Siem Reap Weather
Weather in Siem Reap
Wed, Apr 8
10%
38° 26°
10%
Thu, Apr 9
0%
38° 26°
0%
Fri, Apr 10
0%
37° 26°
0%
Sat, Apr 11
0%
38° 26°
0%
Sun, Apr 12
0%
38° 26°
0%
Mon, Apr 13
0%
38° 27°
0%
Tue, Apr 14
0%
38° 28°
0%
Here’s a quick look at the weather you can expect, plus this week’s forecast:
Seasons: Siem Reap experiences a tropical monsoon climate with distinct wet and dry seasons. The dry season, from November to April, features sunny skies and temperatures ranging from 25.7°C to 38.3°C (78.26°F to 100.94°F). The wet season, from May to October, brings higher humidity and rainfall.
Rain: Siem Reap experiences rainfall mainly during the wet season, from May to October, though the provided data shows minimal rain probability in April. While the rain can be heavy at times, it generally doesn't severely impact travel plans.
This week's forecast: This week in Siem Reap, expect mostly sunny weather with temperatures ranging from 25.7°C to 38.3°C (78.26°F to 100.94°F). There's a slight chance of rain on Wednesday, April 8th, with a 10% probability.
(We update the weather forecast weekly so you know what to expect during your travel week. Always check a day or two before your flight for the most current conditions.)
Frequently Asked Questions About Flights to Siem Reap–Angkor International Airport
(Have more questions?) Feel free to reach out or check our comprehensive Siem Reap–Angkor International Airport travel guide. We’re here to help make your flight to Siem Reap–Angkor International Airport (and the trip itself) as smooth as possible.
Pro Tips for Finding Cheap Flights to Siem Reap–Angkor International Airport
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on Siem Reap–Angkor International Airport flights:
Be Flexible with Your Dates: Flying mid-week or during the off-season (May to September) can seriously slash ticket prices. Think of it as playing travel roulette – your wallet will thank you!
Consider Alternate Airports: Sometimes flying into a nearby airport and then hopping over to Siem Reap can save you a bundle. It's like a mini adventure before the main event!
Snag Early Bird Deals: Booking your flights well in advance (we're talking months!) can often unlock better prices. Early birds catch the cheap flights, after all.
Mix and Match Airlines: Don't be afraid to fly to Siem Reap with one airline and return with another. Mixing and matching can sometimes lead to significant savings – it's like creating your own flight cocktail!
Use RatePunk Price Alerts: Set up price alerts on RatePunk to monitor flight prices for your desired dates. When the price drops, you'll be the first to know, ensuring you snag the best deal before anyone else!
Embrace Red-Eye Flights: Red-eye flights might sound tiring, but they often come with a lower price tag. Just think of it as a power nap on your way to adventure!
Look for Package Deals: Bundling your flight with a hotel or tour package can sometimes unlock hidden discounts. It's like getting a surprise bonus on your trip!
Clear Your Browser's Cookies: Flight prices can fluctuate based on your browsing history. Clear your cookies or use incognito mode to see if prices drop. It's like playing hide-and-seek with the algorithms!
Take Advantage of Stopovers: Consider flights with a stopover; sometimes these are significantly cheaper. You might even get to explore another city along the way!
Follow Airlines on Social Media: Airlines occasionally announce flash sales or special promotions on their social media channels. Following them can give you a heads-up on super cheap deals. It's like being in the know with the travel insiders!
By keeping these tips in mind, you’ll be well-equipped to find the cheapest flights to Siem Reap–Angkor International Airport and make the most of your travel budget. After all, the more you save on your flight, the more you can spend on a Broadway show, a nice meal, or an extra tour in Siem Reap–Angkor International Airport! 🎉✈️