$288 Cheap Flights from Sihanoukville (KOS) to Delhi (DEL)

View $288 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from Sihanoukville (KOS) to Indira Gandhi International Airport (DEL)

Cheap Flights from Sihanoukville to Delhi (KOS-DEL)

Prices were available within the past 7 days and start at $288 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Sihanoukville (KOS) to Delhi (DEL)
Origin airport
Sihanoukville
Destination airport
Indira Gandhi Intl.
Distance
2119 mi

Sihanoukville to Delhi Flights

The cheapest times to fly from Sihanoukville to Delhi

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sihanoukville to Delhi are during the month of . You can find some of the cheapest flights from Sihanoukville to Delhi with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sihanoukville to Delhi

Sunday is one of the best days to book for cheap flights from Sihanoukville to Delhi: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sihanoukville to Delhi

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sihanoukville to Delhi in 2026. You can also book with separate airlines for your outbound and return journeys, from $288 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sihanoukville to Delhi flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sihanoukville to Delhi airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL) cost?
Lock in a cheap one-way flight from $288 or cheap return flight from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL)?
is the least expensive month to fly from KOS to DEL. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL)?
To find the cheapest airline flying from KOS to DEL, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL)?
You'll have to catch a flight with a layover when traveling from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from KOS to DEL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL)?
Opt for a flight from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL) that takes off before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL) last-minute?
Last-minute bookings from KOS to DEL are generally more expensive. For the lowest prices, start searching for flights as soon as possible. That said, if you can play around with your travel dates, you may find a cheap fare just before your departure.
Is it cheaper to book a KOS to DEL flight and hotel package?
Securing a KOS to DEL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of stays and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sihanoukville Airport (KOS) to Indira Gandhi Intl. Airport (DEL)?
If you booked your KOS to DEL flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.