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Ko Samui

$618+ Cheap flights from Newark (EWR) to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — USM
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Newark to Ko Samui

Cheapest flights from Newark to Ko Samui
Explore the most affordable flight options available from Newark to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Singapore Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:35 am
EWR
-
USM
1 stop22h 15m
Singapore Airlines
Mon 10/126:15 pm
USM
-
EWR
1 stop22h 45m
Singapore Airlines
Deal found 1/26$1,382
This Emirates deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:55 pm
EWR
-
USM
3 stops54h 00m
Emirates
Sat 9/125:55 pm
USM
-
EWR
3 stops38h 25m
Emirates
Deal found 1/26$1,410
This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:25 am
EWR
-
USM
2 stops30h 00m
Multiple Airlines
Thu 3/197:35 pm
USM
-
EWR
2 stops38h 55m
Multiple Airlines
Deal found 1/26$1,434
This Gotogate deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:25 pm
EWR
-
USM
2 stops28h 10m
Multiple Airlines
Thu 2/127:35 pm
USM
-
EWR
2 stops33h 18m
Multiple Airlines
Deal found 1/26$1,439
This Trip.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:35 am
EWR
-
USM
1 stop37h 25m
Singapore Airlines
Fri 11/612:00 pm
USM
-
EWR
1 stop29h 30m
Singapore Airlines
Deal found 1/25$1,491
This Singapore Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:35 am
EWR
-
USM
1 stop22h 15m
Singapore Airlines
Sun 9/278:40 am
USM
-
EWR
1 stop32h 20m
Singapore Airlines
Deal found 1/25$1,493
This Trip.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:15 pm
EWR
-
USM
2 stops28h 45m
Multiple Airlines
Fri 11/67:45 pm
USM
-
EWR
2 stops32h 53m
Multiple Airlines
Deal found 1/25$1,516
This Singapore Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:35 am
EWR
-
USM
1 stop37h 35m
Singapore Airlines
Sat 8/298:40 am
USM
-
EWR
1 stop32h 20m
Singapore Airlines
Deal found 1/26$1,527
This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:25 am
EWR
-
USM
2 stops26h 20m
Multiple Airlines
Sat 8/299:00 pm
USM
-
EWR
2 stops36h 30m
Multiple Airlines
Deal found 1/26$1,563
This Emirates deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:55 pm
EWR
-
USM
3 stops46h 25m
Emirates
Sun 9/278:45 am
USM
-
EWR
3 stops47h 35m
Emirates
Deal found 1/25$1,579
This Singapore Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:35 am
EWR
-
USM
1 stop22h 15m
Multiple Airlines
Mon 10/123:20 pm
USM
-
EWR
2 stops25h 40m
Multiple Airlines
Deal found 1/26$1,593

Find flight deals from Newark to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,434
(Expedia)

One-way from

$618
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,818
Provider with most accurate pricing for Newark-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Newark-Ko Samui flights.
Search Deals
From Newark to Ko Samui
Search Deals
One-way flight from Newark to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Newark Airport to Ko Samui that are best for you.

Fly from

Newark

Fly to

Ko Samui

Route

Depart

Return

Price

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Fri 5/8

9:35 am-6:50 pm

1 stop22h 15m

Ko Samui

Sun 5/31

2:35 pm-6:00 am

2 stops26h 25m

$1,723

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Thu 5/14

9:35 am-6:50 pm

1 stop22h 15m

Ko Samui

Fri 5/29

8:40 am-6:00 am

1 stop32h 20m

$1,831

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Sat 7/4

9:35 am-10:10 am

1 stop37h 35m

Ko Samui

Fri 7/17

8:40 am-6:00 am

1 stop32h 20m

$1,891

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Wed 7/1

9:35 am-7:45 am

1 stop35h 10m

Ko Samui

Sun 7/12

8:40 am-6:00 am

1 stop32h 20m

$2,009

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Thu 5/14

11:55 pm-4:55 pm

3 stops30h 00m

Ko Samui

Fri 5/29

5:50 pm-9:20 pm

3 stops38h 30m

$2,067

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Thu 7/2

9:35 am-6:50 pm

1 stop22h 15m

Ko Samui

Mon 7/13

8:40 am-6:00 am

1 stop32h 20m

$2,128

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Mon 6/29

9:25 pm-8:30 pm

2 stops36h 05m

Ko Samui

Sun 7/12

1:30 pm-7:25 pm

2 stops40h 55m

$2,132

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Mon 6/29

9:25 pm-9:35 pm

2 stops37h 10m

Ko Samui

Mon 7/13

1:30 pm-1:55 pm

2 stops35h 25m

$2,132

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Sat 7/4

5:50 pm-9:10 pm

2 stops40h 20m

Ko Samui

Mon 7/13

4:25 pm-1:55 pm

2 stops32h 30m

$2,164

NewarkKo Samui

EWR - USM

EWRUSM

Newark

Sat 7/4

9:25 pm-9:10 pm

2 stops36h 45m

Ko Samui

Sun 7/12

4:25 pm-7:25 pm

2 stops38h 00m

$2,164

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 16 results
1
2

Compare providers for flights from Newark to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Newark to Ko Samui in January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Newark Airport-Ko Samui flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Newark Airport-Ko Samui flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Newark Airport-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-Ko Samui flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Newark Airport-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Newark to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Newark with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to Ko Samui

What is the cheapest time of day to fly from EWR to USM?

Find hourly flight availability from Newark to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 26, 2026.

It’s optimal to fly from Newark Airport to Ko Samui in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Newark Airport to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Newark to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Newark Airport to Ko Samui flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Newark Airport to Ko Samui flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Newark Airport to Ko Samui trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

Related info for your journey

Find useful and relevant information for your journey from Newark to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Newark?

    Ko Samui (USM), located 2.1 mi from the city center, is the airport you fly into when you book flights from Newark to Ko Samui. 0 airlines have flights to Ko Samui from Newark on a regular basis. Booking flights from Newark to Ko Samui should not be difficult; the airport handles an average of 0 inbound flights from Newark per day.

  • How long is the flight from Newark Airport to Ko Samui?

    For as low as $1,831, Singapore Airlines can have you in Ko Samui from Newark Airport in 22h 15m. The distance from Newark Airport to Ko Samui is about 8939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Newark to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Newark to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newark to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Ko Samui.

  • Can I find deals for business class flights from Newark to Ko Samui?

    Yes. Cheapflights offers flight deals from Newark to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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