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Cheap flights from Reykjavik Keflavik Intl Airport to Southeast Asia from S$ 686

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 16-6. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — BKK
20 Jun — 27 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 May 2026.

Tue 16-600:45
KEF
-
SIN
3 stops48h 55m
Multiple Airlines
Wed 24-620:00
SIN
-
KEF
3 stops59h 55m
Multiple Airlines
Deal found 20-5S$ 1,437
Wed 17-617:15
KEF
-
SIN
1 stop17h 15m
Finnair
Wed 24-621:35
SIN
-
KEF
1 stop26h 55m
Finnair
Deal found 20-5S$ 1,482
Sun 24-508:35
KEF
-
SIN
1 stop25h 55m
Finnair
Sun 7-601:45
SIN
-
KEF
2 stops38h 05m
Finnair
Deal found 20-5S$ 1,783
Sat 4-707:40
KEF
-
SIN
2 stops34h 20m
Multiple Airlines
Fri 10-703:00
SIN
-
KEF
2 stops28h 35m
Multiple Airlines
Deal found 19-5S$ 1,787
Sun 24-517:15
KEF
-
SIN
1 stop17h 15m
Multiple Airlines
Mon 8-623:40
SIN
-
KEF
1 stop21h 15m
Multiple Airlines
Deal found 20-5S$ 2,078

Find 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 21 May 2026.

Round-trip from

S$ 1,437

One-way from

S$ 686

Popular in

March

Cheapest in

April

Average price

S$ 1,211
16-6-24-6
  • 16-6-24-6
  • 6 total stops
  • 108h 50m total
  • Reykjavik to Southeast Asia
Search Deals
16-6
  • 16-6
  • 3 total stops
  • 43h 20m total
  • Reykjavik to Southeast Asia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (S$ 26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 95 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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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 21 May 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Tue 16-6

00:45-09:40

3 stops48h 55m

Singapore Changi

Wed 24-6

20:00-23:55

3 stops59h 55m

S$ 1,437
Fastest return journey

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Wed 17-6

17:15-18:30

1 stop17h 15m

Singapore Changi

Wed 24-6

21:35-16:30

1 stop26h 55m

S$ 1,482

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Sat 4-7

20:45-16:30

3 stops35h 45m

Singapore Changi

Sat 11-7

23:25-18:20

2 stops26h 55m

S$ 1,924
Cheapest one-way

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Wed 19-8

07:30-09:40

2 stops42h 10m

S$ 717

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Wed 17-6

20:00-04:05

2 stops24h 05m

S$ 731

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Wed 19-8

07:30-18:30

1 stop27h 00m

S$ 948
Fastest single journey

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Wed 17-6

17:15-18:30

1 stop17h 15m

S$ 970

ReykjavikSingapore

KEF - SIN

KEFSIN

Reykjavik Keflavik Intl

Thu 25-6

14:10-16:30

1 stop18h 20m

S$ 1,372

Flights are sorted by cheapest return flights first.

Deals found on 18-5

Sorted by cheapest first

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
No data available for this route at this time. Please check back soon.

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?

    Finnair can get you from Reykjavik Keflavik Intl Airport to Southeast Asia in just under 17h 15m. Your travel time can differ by up to . Airlines will cover a distance of 11545 km.

  • 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.

See more FAQs

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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.

Can Cheapflights notify me if prices for flights from Keflavik Intl to Southeast Asia become cheaper?

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