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฿12,345+ 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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
— KEF
9 Apr — 16 Apr1
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 10 March 2026.

Wed 22/409:05
BKK
-
KEF
2 stops31h 20m
Multiple Airlines
Wed 29/410:45
KEF
-
BKK
2 stops24h 35m
Multiple Airlines
Deal found 8/3฿29,456
Sat 2/509:40
BKK
-
KEF
2 stops31h 15m
Multiple Airlines
Fri 15/510:45
KEF
-
BKK
2 stops30h 05m
Multiple Airlines
Deal found 9/3฿29,520
Sat 17/1015:05
BKK
-
KEF
2 stops34h 15m
Multiple Airlines
Sat 31/1019:05
KEF
-
BKK
2 stops32h 20m
Multiple Airlines
Deal found 8/3฿30,703
Sat 17/1007:05
BKK
-
KEF
1 stop31h 45m
Finnair
Sat 31/1018:00
KEF
-
BKK
1 stop32h 45m
Finnair
Deal found 8/3฿31,375
Sat 5/907:05
BKK
-
KEF
1 stop31h 45m
Finnair
Sun 13/908:35
KEF
-
BKK
1 stop37h 55m
Finnair
Deal found 6/3฿31,855
Tue 21/410:40
DMK
-
KEF
2 stops30h 20m
Multiple Airlines
Tue 28/410:50
KEF
-
DMK
2 stops28h 20m
Multiple Airlines
Deal found 7/3฿38,187
Sun 29/320:25
DMK
-
KEF
3 stops28h 35m
Multiple Airlines
Mon 13/408:35
KEF
-
DMK
3 stops37h 00m
Multiple Airlines
Deal found 5/3฿45,384
Thu 9/410:40
DMK
-
KEF
3 stops34h 10m
Multiple Airlines
Sun 19/410:30
KEF
-
DMK
3 stops28h 40m
Multiple Airlines
Deal found 5/3฿59,424
Sat 17/1023:50
DMK
-
KEF
2 stops24h 30m
Emirates
Sat 31/1007:35
KEF
-
DMK
2 stops29h 40m
Emirates
Deal found 8/3฿133,752

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 10 March 2026.

Return from

฿29,456

One-way from

฿12,345
22/4-29/4
  • 22/4-29/4
  • 4 total stops
  • 55h 55m total
  • Bangkok to Reykjavik
Search Deals
21/4
  • 21/4
  • 2 total stops
  • 32h 40m 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 10 March 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

Wed 22/4

15:05-16:15

3 stops32h 10m

Reykjavik Keflavik Intl

Wed 29/4

10:45-18:10

2 stops24h 25m

฿30,799

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sat 2/5

09:05-10:25

2 stops56h 20m

Reykjavik Keflavik Intl

Fri 15/5

07:55-12:55

2 stops22h 00m

฿34,797

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 4/9

02:30-17:20

2 stops21h 50m

Reykjavik Keflavik Intl

Sun 13/9

07:50-12:55

2 stops22h 05m

฿37,964

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Tue 21/4

10:40-10:00

2 stops30h 20m

Reykjavik Keflavik Intl

Tue 28/4

10:50-22:10

2 stops28h 20m

฿38,187

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 21/4

03:15-17:55

2 stops21h 40m

Reykjavik Keflavik Intl

Wed 29/4

16:10-13:10

2 stops38h 00m

฿40,810

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 3/4

02:30-07:50

2 stops36h 20m

Reykjavik Keflavik Intl

Fri 17/4

07:50-13:20

2 stops22h 30m

฿41,066
Fastest return journey

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 21/4

19:40-10:00

2 stops21h 20m

Reykjavik Keflavik Intl

Fri 24/4

08:35-12:55

2 stops21h 20m

฿43,688

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Sun 29/3

20:25-18:00

3 stops28h 35m

Reykjavik Keflavik Intl

Mon 13/4

08:35-04:35

3 stops37h 00m

฿45,384

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 21/4

07:05-07:50

1 stop31h 45m

Reykjavik Keflavik Intl

Fri 24/4

17:15-05:30

1 stop29h 15m

฿81,652
Cheapest one-way

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Tue 21/4

10:40-16:45

3 stops37h 05m

฿13,305

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 21 resultsSorted by cheapest first
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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 25 hours 42 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 ฿33,402

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 10 March 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
1,371 reviews
Check prices

Overall

7.6

Comfort

7.5

Boarding

7.7

Food

6.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Finnair
7.6
Good
1,371 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Overall

7.6

Comfort

7.5

Boarding

7.7

Food

6.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.

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 ฿8,475, while return flights cost around ฿10,637.

  • How much is a return flight to Keflavik Intl?

    A return flight to Keflavik Intl will typically cost around ฿11,064, however they can be found for as little as ฿10,637.

  • 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 (21 hours 5 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. Iceland Campervan is the closest property to Reykjavik Keflavik Intl (0.0 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?

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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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