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Cheap flights from Reykjavik Keflavik Intl Airport to Southeast Asia from S$ 973

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11-1. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — BKK
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Keflavik Intl to Southeast Asia

Keep the following information in mind while searching for Keflavik Intl to Southeast Asia flight deals. Data was last updated 19 November 2025.

Round-trip from

S$ 973

Popular in

July

Cheapest in

September

Average price

S$ 1,288
KLM
  • KLM
  • 11-1-23-1
  • 2 total stops
  • 61h 35m total
  • Reykjavik to Southeast Asia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (S$ 234 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 57 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Keflavik Intl to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Keflavik Intl to Southeast Asia
Explore the most affordable flight options available from Keflavik Intl to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 November 2025.

Wed 31-1200:55KEF - SIN
3 stops37h 00mMultiple Airlines
Thu 8-117:50SIN - KEF
2 stops32h 30mMultiple Airlines
Deal found 16-11S$ 1,800

Cheapflights Fare Finder

 
Customise your flight search to find flights from Keflavik Intl to Southeast Asia 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 200,618 searches. Data last updated 19 November 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Southeast Asia that are best for you.

Fly from

Keflavik Intl

Fly to

Southeast Asia

Route

Depart

Return

Price

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Sun 11-1

20:05-16:15

1 stop36h 10m

Singapore Changi

Fri 23-1

01:40-19:05

1 stop25h 25m

S$ 973

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Mon 2-2

11:50-15:55

1 stop20h 05m

Singapore Changi

Sun 8-2

23:05-10:55

1 stop19h 50m

S$ 977

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Sun 11-1

11:50-18:25

1 stop22h 35m

Singapore Changi

Sat 24-1

23:05-17:05

1 stop26h 00m

S$ 1,074

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Mon 2-2

20:20-09:35

2 stops29h 15m

Singapore Changi

Sun 8-2

10:30-19:40

3 stops41h 10m

S$ 1,279

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Sun 11-1

07:40-22:00

2 stops30h 20m

Singapore Changi

Fri 23-1

04:15-23:55

3 stops27h 40m

S$ 1,288

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Sun 18-1

15:20-16:55

1 stop17h 35m

Singapore Changi

Wed 21-1

23:45-14:15

1 stop22h 30m

S$ 1,717

Flights are sorted by cheapest return flights first.

Deals found on 17-11

Best time to book a flight from Keflavik Intl to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Keflavik Intl with our price prediction graph.
Estimated return 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 Reykjavik Keflavik Intl Airport to Southeast Asia

What is the cheapest month to book a flight from Reykjavik Keflavik Intl Airport to Southeast Asia?

Currently, May is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Southeast Asia (average of S$ 659). Flying from Reykjavik Keflavik Intl Airport to Southeast Asia in August is currently the most expensive (average of S$ 1,391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Reykjavik Keflavik Intl Airport to Southeast Asia?

    KLM and British Airways can get you from Reykjavik Keflavik Intl Airport to Southeast Asia in just under 20h 05m. Your travel time can differ by up to 16h 05m. Airlines will cover a distance of 11545 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Keflavik Intl to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to Southeast Asia.

  • Can I find deals for business class flights from Keflavik Intl to Southeast Asia?

    Yes. Cheapflights offers flight deals from Keflavik Intl to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Reykjavik Keflavik Intl Airport to Southeast Asia?

    Currently, May is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Southeast Asia (average of S$ 659). Flying from Reykjavik Keflavik Intl Airport to Southeast Asia in August is currently the most expensive (average of S$ 1,391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Why should you use Cheapflights to find cheap flight tickets from Keflavik Intl to Southeast Asia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from Keflavik Intl.

Can Cheapflights find flights from Keflavik Intl to Southeast Asia with no change fees?

Need flexible booking options for your flight to Southeast Asia from Keflavik Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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