Find flights
Airlines
Thailand (ภาษาไทย)
ภาษาไทย

฿11,928+ 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 24/12. Fares are subject to change and may not be available on all flights or dates of travel.
— KEF
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Find flight deals to Keflavik Intl Airport

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 20 October 2025.

Sat 15/1115:00BKK - KEF
1 stop25h 15mFinnair
Sat 22/1118:00KEF - BKK
1 stop36h 15mFinnair
Deal found 20/10฿28,464
Wed 10/1215:00BKK - KEF
1 stop25h 15mFinnair
Fri 26/1210:00KEF - BKK
1 stop37h 05mFinnair
Deal found 18/10฿28,628
Tue 18/1121:05BKK - KEF
3 stops33h 50mMultiple Airlines
Tue 25/1107:40KEF - BKK
1 stop19h 45mMultiple Airlines
Deal found 19/10฿30,229
Thu 4/1212:25BKK - KEF
1 stop36h 55mMultiple Airlines
Thu 11/1218:05KEF - BKK
2 stops34h 35mMultiple Airlines
Deal found 20/10฿30,948
Tue 18/1115:55DMK - KEF
3 stops34h 10mMultiple Airlines
Tue 25/1112:20KEF - DMK
3 stops30h 30mMultiple Airlines
Deal found 19/10฿31,667
Fri 7/1123:50BKK - KEF
2 stops30h 45mMultiple Airlines
Tue 11/1115:20KEF - BKK
2 stops34h 40mMultiple Airlines
Deal found 19/10฿31,928
Fri 7/1115:00BKK - KEF
1 stop33h 15mFinnair
Tue 11/1110:00KEF - BKK
1 stop20h 15mFinnair
Deal found 19/10฿32,778

Flights to Keflavik Intl in 2025

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 20 October 2025.

One-way from

฿11,928

Popular in

February

Cheapest in

April

Average price

฿32,288
24/12
  • 24/12
  • 2 total stops
  • 42h 35m total
  • Bangkok to Reykjavik
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (฿15,522 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (฿6,516 potential savings vs. average return price).
Search Deals
Average for return flights in October 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 20 October 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

Fri 13/3

15:00-17:15

1 stop33h 15m

Reykjavik Keflavik Intl

Sun 22/3

10:00-13:15

1 stop20h 15m

฿28,464

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Thu 4/12

08:00-09:15

1 stop32h 15m

Reykjavik Keflavik Intl

Thu 11/12

09:45-13:15

1 stop20h 30m

฿28,464

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Sat 15/11

15:00-09:15

1 stop25h 15m

Reykjavik Keflavik Intl

Sat 22/11

18:00-06:05

1 stop29h 05m

฿28,464

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Wed 11/3

08:00-09:15

1 stop32h 15m

Reykjavik Keflavik Intl

Thu 26/3

10:00-13:15

1 stop20h 15m

฿28,562

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Wed 10/12

15:00-09:15

1 stop25h 15m

Reykjavik Keflavik Intl

Fri 26/12

10:00-06:05

1 stop37h 05m

฿28,628

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Thu 4/12

12:25-18:20

1 stop36h 55m

Reykjavik Keflavik Intl

Thu 11/12

18:05-11:40

2 stops34h 35m

฿30,948

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Tue 18/11

15:55-19:05

3 stops34h 10m

Reykjavik Keflavik Intl

Tue 25/11

12:20-01:50

3 stops30h 30m

฿31,667

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Fri 7/11

15:00-17:15

1 stop33h 15m

Reykjavik Keflavik Intl

Tue 11/11

10:00-13:15

1 stop20h 15m

฿32,778

BangkokReykjavik

DMK - KEF

DMKKEF

Bangkok Don Mueang Intl

Wed 11/3

20:50-18:00

3 stops28h 10m

Reykjavik Keflavik Intl

Thu 26/3

11:25-00:35

3 stops30h 10m

฿33,007

BangkokReykjavik

BKK - KEF

BKKKEF

Bangkok Suvarnabhumi

Wed 11/3

08:20-23:55

2 stops22h 35m

Reykjavik Keflavik Intl

Thu 12/3

07:50-10:10

1 stop19h 20m

฿33,432

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Showing 1-10 of 23 results
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 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 ฿29,637

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 20 October 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
1,333 reviews
Check prices

Comfort

7.4

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Overall

7.6

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
1,333 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Overall

7.6

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 ฿3,057, while return flights cost around ฿4,694.

  • How much is a return flight to Keflavik Intl?

    A return flight to Keflavik Intl will typically cost around ฿146, however they can be found for as little as ฿144.

  • 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 (25 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Keflavik Intl by cabin class

Find flights to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Keflavik Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Keflavik Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.