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฿14,440+ Cheap flights to Keflavik Intl

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
— KEF
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Flights to Keflavik Intl in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Keflavik Intl Airport
Explore the most affordable flight options available to Keflavik Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 12 July 2026.

Tue 6/1003:15
BKK
-
KEF
2 stops35h 50m
Multiple Airlines
Wed 14/1018:45
KEF
-
BKK
2 stops34h 25m
Multiple Airlines
Deal found 9/7฿26,889
Wed 7/1009:10
BKK
-
KEF
2 stops30h 10m
Multiple Airlines
Mon 19/1018:40
KEF
-
BKK
2 stops34h 30m
Multiple Airlines
Deal found 9/7฿27,918
Wed 9/912:35
BKK
-
KEF
1 stop26h 40m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 22/916:20
KEF
-
BKK
1 stop34h 30m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 11/7฿31,835
Thu 3/907:05
BKK
-
KEF
1 stop31h 45m
Finnair
Wed 9/917:15
KEF
-
BKK
1 stop29h 15m
Finnair
Deal found 9/7฿33,229
Fri 4/1203:00
BKK
-
KEF
1 stop24h 20m
Multiple Airlines
Sat 12/1218:15
KEF
-
BKK
2 stops33h 10m
Multiple Airlines
Deal found 10/7฿33,794
Tue 1/907:05
BKK
-
KEF
1 stop31h 45m
Finnair
Mon 7/908:35
KEF
-
BKK
1 stop37h 55m
Finnair
Deal found 9/7฿33,993
Mon 31/807:05
BKK
-
KEF
1 stop31h 45m
Finnair
Fri 11/917:15
KEF
-
BKK
1 stop29h 15m
Finnair
Deal found 11/7฿34,059
Tue 1/907:05
BKK
-
KEF
1 stop31h 45m
Finnair
Wed 9/908:35
KEF
-
BKK
1 stop37h 55m
Finnair
Deal found 9/7฿34,192
Wed 7/1012:10
DMK
-
KEF
2 stops42h 40m
Emirates
Wed 14/1007:40
KEF
-
DMK
2 stops20h 30m
Emirates
Deal found 9/7฿39,238
Wed 2/923:55
DMK
-
KEF
2 stops30h 55m
Emirates
Wed 9/901:10
KEF
-
DMK
2 stops27h 15m
Emirates
Deal found 9/7฿39,636
Wed 2/923:55
DMK
-
KEF
2 stops30h 55m
Emirates
Fri 11/901:10
KEF
-
DMK
2 stops27h 15m
Emirates
Deal found 9/7฿40,200
Thu 8/1012:10
DMK
-
KEF
2 stops42h 25m
Emirates
Mon 12/1007:40
KEF
-
DMK
2 stops44h 30m
Emirates
Deal found 7/7฿40,499

Find flight deals to Keflavik Intl Airport

Find the latest flights to Keflavik Intl in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 12 July 2026.

Return from

฿26,889

One-way from

฿14,440
6/10-14/10
  • 6/10-14/10
  • 4 total stops
  • 70h 15m total
  • Bangkok to Reykjavik
Search Deals
29/9
  • 29/9
  • 2 total stops
  • 47h 25m total
  • Bangkok to Reykjavik
Search Deals

Cheapflights Fare Finder

 
Locate flights to Keflavik Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 12 July 2026.
Use the filters below to find and compare flights to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 6/10

03:15-08:05

2 stops35h 50m

Reykjavik Keflavik Intl

Sun 18/10

01:00-07:05

1 stop23h 05m

฿30,507

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Wed 9/9

12:35-08:15

1 stop26h 40m

Reykjavik Keflavik Intl

Tue 22/9

16:20-09:50

1 stop34h 30m

฿31,835

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Mon 23/11

12:35-17:20

1 stop35h 45m

Reykjavik Keflavik Intl

Thu 26/11

18:05-10:35

1 stop33h 30m

฿34,789

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sat 5/12

14:40-10:45

2 stops27h 05m

Reykjavik Keflavik Intl

Sat 12/12

15:30-06:35

2 stops32h 05m

฿35,719

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 8/9

15:30-08:15

2 stops47h 45m

Reykjavik Keflavik Intl

Tue 22/9

16:20-09:50

1 stop34h 30m

฿36,416

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Wed 9/9

03:00-07:05

2 stops35h 05m

Reykjavik Keflavik Intl

Tue 22/9

09:40-13:25

2 stops20h 45m

฿36,781

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 21/8

00:30-17:45

2 stops24h 15m

Reykjavik Keflavik Intl

Sat 29/8

10:40-06:15

1 stop36h 35m

฿38,308

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 4/9

07:05-07:55

1 stop31h 50m

Reykjavik Keflavik Intl

Wed 9/9

17:15-05:30

1 stop29h 15m

฿39,171

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Thu 3/9

07:05-07:50

1 stop31h 45m

Reykjavik Keflavik Intl

Tue 8/9

17:15-05:30

1 stop29h 15m

฿39,171

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Wed 2/9

23:55-23:50

2 stops30h 55m

Reykjavik Keflavik Intl

Fri 11/9

01:10-11:25

2 stops27h 15m

฿40,200

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to 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 to Reykjavik Keflavik Intl Airport

How long is the flight to Keflavik Intl?

On average, a flight from Bangkok to Keflavik Intl takes 23 hours 25 minutes. Flights to Keflavik Intl from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Keflavik Intl?

The most popular airline flying from Bangkok to Keflavik Intl is Finnair.

Finnair
Finnair
From ฿34,669

What are the cheapest airlines that fly to Keflavik Intl?

The cheapest airline flying from Bangkok to Keflavik Intl is Finnair.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Keflavik Intl ranges from 40.0 - 80.0 mm per month. January is typically the wettest month, when rainfall can reach 80.0 mm. May is typically the driest time to visit Keflavik Intl when rainfall is around 40.0 mm.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Keflavik Intl, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 11.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated 12 July 2026.
Read through reviews of airlines serving Iceland, such as Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,418 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,418 reviews
Finnair
7.6
Good
1,418 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

FAQs about flying to Keflavik Intl

  • Can I find cheaper flights to Keflavik Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Keflavik Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Keflavik Intl?

    Based on reviews from Cheapflights users, Finnair is rated the highest out of the airlines that fly to Keflavik Intl.

  • What is the cheapest airport to fly to in Keflavik Intl?

    Reykjavik Keflavik Intl is currently the cheapest airport to fly to in Keflavik Intl. One-way flights to Reykjavik Keflavik Intl typically cost ฿38,860, while return flights cost around ฿11,950.

  • Where does the fastest flight to Keflavik Intl depart from?

    For those looking to save time traveling to Keflavik Intl, Bangkok offers the quickest one-way flight (23 hours 25 minutes).

  • Does Reykjavik Keflavik Intl have rental cars?

    Yes. Those touching down at Reykjavik Keflavik Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Reykjavik Keflavik Intl?

    Yes. Reykjavik Keflavik Intl has hotels nearby for those requiring accommodations. Bank Guesthouse by Kef Airport is the closest property to Reykjavik Keflavik Intl (1.6 km away from Reykjavik Keflavik Intl).

See more FAQs

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

Cheapflights simply makes it quick and affordable to book flights to Keflavik Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights to Keflavik Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Keflavik Intl today and book when you’re ready!

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