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฿15,279+ 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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
— KEF
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Keflavik Intl in 2025

Enter your travel dates to find the best prices.

Best flights to Keflavik Intl Airport
Discover carefully curated flight deals to Keflavik Intl Airport that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 December 2025.

Sun 7/623:40BKK - KEF
2 stops30h 45mลุฟท์ฮันซ่า
Thu 18/601:10KEF - BKK
1 stop29h 50mลุฟท์ฮันซ่า
Deal found 21/12฿28,349
Sat 6/603:15BKK - KEF
2 stops45h 45mMultiple Airlines
Fri 19/610:45KEF - BKK
2 stops30h 05mMultiple Airlines
Deal found 21/12฿28,660
Sun 7/607:05BKK - KEF
1 stop31h 45mFinnair
Fri 19/608:35KEF - BKK
1 stop37h 55mFinnair
Deal found 21/12฿31,585
Sat 31/112:45BKK - KEF
1 stop29h 00mสแกนดอเนเวียนแอร์ไลน์
Wed 4/211:30KEF - BKK
1 stop36h 50mสแกนดอเนเวียนแอร์ไลน์
Deal found 20/12฿33,328
Thu 5/220:30BKK - KEF
2 stops26h 00mMultiple Airlines
Thu 12/207:50KEF - BKK
2 stops27h 35mMultiple Airlines
Deal found 22/12฿32,114
Fri 13/308:05BKK - KEF
1 stop32h 10mFinnair
Sun 22/310:00KEF - BKK
1 stop37h 05mFinnair
Deal found 21/12฿33,826
Fri 13/309:05BKK - KEF
2 stops37h 10mMultiple Airlines
Sun 22/307:30KEF - BKK
2 stops21h 45mMultiple Airlines
Deal found 22/12฿32,581
Fri 6/220:30BKK - KEF
2 stops26h 00mMultiple Airlines
Fri 13/207:35KEF - BKK
2 stops28h 50mMultiple Airlines
Deal found 23/12฿34,355

Find flight deals to Keflavik Intl Airport

Find the latest flights to Keflavik Intl in 2025, 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 23 December 2025.

Return from

฿28,349

One-way from

฿15,279

Popular in

December

Cheapest in

May

Average price

฿40,796
ลุฟท์ฮันซ่า
  • ลุฟท์ฮันซ่า
  • 7/6-18/6
  • 3 total stops
  • 60h 35m total
  • Bangkok to Reykjavik
Search Deals
26/1
  • 26/1
  • 2 total stops
  • 36h 15m total
  • Bangkok to Reykjavik
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿1,693 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿935 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 23 December 2025.
Use the filters below to find and compare flights to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sun 7/6

23:40-23:25

2 stops30h 45m

Reykjavik Keflavik Intl

Thu 18/6

01:10-14:00

1 stop29h 50m

฿28,349

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sat 6/6

03:15-18:00

2 stops45h 45m

Reykjavik Keflavik Intl

Fri 19/6

10:45-23:50

2 stops30h 05m

฿28,660

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sun 7/6

07:05-07:50

1 stop31h 45m

Reykjavik Keflavik Intl

Fri 19/6

08:35-05:30

1 stop37h 55m

฿31,585

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Thu 5/2

20:30-15:30

2 stops26h 00m

Reykjavik Keflavik Intl

Thu 12/2

07:50-18:25

2 stops27h 35m

฿32,114

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 13/3

09:05-15:15

2 stops37h 10m

Reykjavik Keflavik Intl

Sun 22/3

07:30-12:15

2 stops21h 45m

฿32,581

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sat 31/1

12:45-10:45

1 stop29h 00m

Reykjavik Keflavik Intl

Wed 4/2

11:30-07:20

1 stop36h 50m

฿33,328

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 13/3

08:05-09:15

1 stop32h 10m

Reykjavik Keflavik Intl

Sun 22/3

10:00-06:05

1 stop37h 05m

฿33,826

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 6/2

20:30-15:30

2 stops26h 00m

Reykjavik Keflavik Intl

Fri 13/2

07:35-19:25

2 stops28h 50m

฿34,355

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Mon 26/1

08:55-14:10

2 stops36h 15m

฿15,279

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Tue 31/3

21:05-13:50

2 stops23h 45m

฿16,959

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 11 results
1
2

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 29 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 ฿31,394

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 23 December 2025.
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
1,339 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,339 reviews
Finnair
7.6
Good
1,339 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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 ฿2,911, while return flights cost around ฿10,350.

  • How much is a return flight to Keflavik Intl?

    A return flight to Keflavik Intl will typically cost around ฿10,765, however they can be found for as little as ฿10,350.

  • 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 (28 hours 15 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?

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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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