$215 Cheap Flights from Delhi (DEL) to Samui Intl. Airport (USM)

View $215 flight on Wed, Oct 8, 2025Opens in a new window

Popular airlines from Indira Gandhi International Airport (DEL) to Samui Intl. Airport (USM)

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Cheap Flights from Delhi to Samui Intl. Airport (DEL-USM)

Prices were available within the past 7 days and start at $215 for one-way flights and $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Fri, Oct 10 - Tue, Oct 14
DEL
Delhi
USM
Koh Samui
$422 Roundtrip, found 4 days ago
$422
Roundtrip
found 4 days ago
Select Air India flight, departing Fri, Oct 10 from Delhi to Koh Samui, returning Tue, Oct 14, priced at $422 found 4 days ago
Air India
Wed, Oct 8 - Fri, Oct 17
DEL
Delhi
USM
Koh Samui
$431 Roundtrip, found 4 days ago
$431
Roundtrip
found 4 days ago
Select Air India flight, departing Wed, Oct 8 from Delhi to Koh Samui, returning Fri, Oct 17, priced at $431 found 4 days ago
Air India
Wed, Oct 8 - Fri, Oct 17
DEL
Delhi
USM
Koh Samui
$437 Roundtrip, found 4 days ago
$437
Roundtrip
found 4 days ago
Select Air India flight, departing Wed, Oct 8 from Delhi to Koh Samui, returning Fri, Oct 17, priced at $437 found 4 days ago
Air India
Fri, Oct 10 - Mon, Oct 13
DEL
Delhi
USM
Koh Samui
$438 Roundtrip, found 4 days ago
$438
Roundtrip
found 4 days ago
Select Air India flight, departing Fri, Oct 10 from Delhi to Koh Samui, returning Mon, Oct 13, priced at $438 found 4 days ago
Air India
Fri, Oct 10 - Mon, Oct 13
DEL
Delhi
USM
Koh Samui
$439 Roundtrip, found 4 days ago
$439
Roundtrip
found 4 days ago
Select Air India flight, departing Fri, Oct 10 from Delhi to Koh Samui, returning Mon, Oct 13, priced at $439 found 4 days ago
Air India
Wed, Oct 8 - Fri, Oct 17
DEL
Delhi
USM
Koh Samui
$447 Roundtrip, found 4 days ago
$447
Roundtrip
found 4 days ago
Select Air India flight, departing Wed, Oct 8 from Delhi to Koh Samui, returning Fri, Oct 17, priced at $447 found 4 days ago
Air India
Wed, Oct 15 - Thu, Oct 23
DEL
Delhi
USM
Koh Samui
$452 Roundtrip, found 6 days ago
$452
Roundtrip
found 6 days ago
Select Air India flight, departing Wed, Oct 15 from Delhi to Koh Samui, returning Thu, Oct 23, priced at $452 found 6 days ago
Vietnam Airlines
Thu, Nov 27 - Mon, Dec 1
DEL
Delhi
USM
Koh Samui
$663 Roundtrip, found 6 days ago
$663
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Thu, Nov 27 from Delhi to Koh Samui, returning Mon, Dec 1, priced at $663 found 6 days ago
Thai Airways International
Sun, Dec 14 - Thu, Dec 18
DEL
Delhi
USM
Koh Samui
$674 Roundtrip, found 1 hour ago
$674
Roundtrip
found 1 hour ago
Select Thai Airways International flight, departing Sun, Dec 14 from Delhi to Koh Samui, returning Thu, Dec 18, priced at $674 found 1 hour ago
Singapore Airlines
Sun, Nov 16 - Sat, Nov 22
DEL
Delhi
USM
Koh Samui
$906 Roundtrip, found 5 days ago
$906
Roundtrip
found 5 days ago
Select Singapore Airlines flight, departing Sun, Nov 16 from Delhi to Koh Samui, returning Sat, Nov 22, priced at $906 found 5 days ago

Alternative airports near Koh Samui

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Samui Intl. Airport USM. Cheapest and Closest option available. Average driving time to city center is 31 minutes. Flights from $487
USM
Samui Intl. Airport
CheapestClosest
Average driving time to city center31 min
Flights from $487

Frequently asked questions

How much does a flight from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM) cost?
Get a cheap one-way flight from $215 or cheap return flight from $422 from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM)?
The cheapest month to fly from DEL to USM is October, when demand is low. Off-peak season is typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM)?
To find the cheapest airline that'll fly you from DEL to USM, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM)?
There aren't any daily direct flights departing from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from DEL to USM?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM)?
Select a flight from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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 Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM) last-minute?
Holding off until right before your break to book a ticket from DEL to USM generally means paying more. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans for the best chance of landing a bargain.
Is it cheaper to book a DEL to USM flight and hotel package?
Compared with arranging flights and hotels separately, booking a DEL to USM flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Indira Gandhi Intl. Airport (DEL) to Ko Samui Airport (USM)?
You can usually cancel or reschedule your DEL to USM flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Indira Gandhi Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Singapore Airlines, Thai Airways International
Roundtrip price
$422
Distance
1986 mi

Book with confidence

Book with confidence

Delhi to Samui Intl. Airport Flights

The cheapest times to fly from Delhi to Samui Intl. Airport

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 Delhi to Samui Intl. Airport are during the month of October. You can find some of the cheapest flights from Delhi to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Delhi to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from Delhi to Samui Intl. Airport: 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 Delhi to Samui Intl. Airport

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 Delhi to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $215 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 Delhi to Samui Intl. Airport 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 Delhi to Samui Intl. Airport 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.

 

Delhi to Samui Intl. Airport Flights
*Available to One Key members.