Cheap flights from St. Louis (STL) to Keflavik Intl (KEF)

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How to find the cheapest flight from
St. Louis (STL) to Keflavik Intl (KEF)

All the information you need to plan the best STL to KEF flight in 2022: compare St. Louis to Keflavik Intl flight prices with the expected peak season, weather and rainfall in Keflavik Intl.
STL - KEF
Price
$526 - $1,541
KEF
Temperature
32 - 51.8 °F
KEF
Precipitation
1.6 - 3.1 inches

Popular in

December

High demand for flights, 50% potential price rise

Cheapest in

August

Best time to find cheap flights, 32% potential price drop

Round-trip from

$526

From Lambert-St Louis to Reykjavik Keflavik Intl

One-way from

$496

One-way flight from Lambert-St Louis to Reykjavik Keflavik Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from St. Louis to Reykjavik Keflavik Intl Airport?

The best pricing can be found in the month of August. Prices to Reykjavik Keflavik Intl Airport from St. Louis average $806. You can even find prices in August for less than $806, as users have found deals to Reykjavik Keflavik Intl Airport from as low as $596. The month of December appears to be one of the more expensive times to travel to Reykjavik Keflavik Intl Airport from St. Louis. Flying in the targeted month can save you up to 54%.

When is the cheapest time to fly from St. Louis to Reykjavik Keflavik Intl Airport (STL - KEF)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Reykjavik Keflavik Intl Airport as you normally would.

Cheap flights from St. Louis to Keflavik Intl in January, February 2022

The best prices found for STL to KEF flights for January, February
2 Feb - 9 Feb
$706pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
18 Feb - 25 Feb
$1,028pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
29 Jan - 4 Feb
$1,035pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
British Airways
   
2 STOPS
STL
Lambert-St Louis

Lambert-St Louis to Keflavik Intl 2022 flight deals

Cheap flights to Keflavik Intl from St. Louis found for this year
3 May - 17 May
$647pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
7 Sep - 12 Sep
$664pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
7 Apr - 14 Apr
$667pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Finnair
   
2 STOPS
STL
Lambert-St Louis

Last minute flights from St. Louis to Keflavik Intl

Late deals on round-trip flights to Keflavik Intl from St. Louis, departing today and this week
29 Jan - 4 Feb
$1,035pp
STL
Lambert-St Louis
British Airways
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
British Airways
   
2 STOPS
STL
Lambert-St Louis
29 Jan - 4 Feb
$1,329pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
American Airlines
     
3 STOPS
STL
Lambert-St Louis
29 Jan - 4 Feb
$1,338pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to Keflavik Intl from St. Louis

The cheapest one-way flights from St. Louis to Keflavik Intl
2:30 am - 2:00 am
Multiple Airlines
1 Stop
18h 30m
STL - KEF
Multiple Airlines
$641
Kiwi.com
2:30 am - 2:00 am
Multiple Airlines
1 Stop
18h 30m
STL - KEF
Multiple Airlines
$763
Kiwi.com
5:05 pm - 2:10 am
Multiple Airlines
2 Stops
28h 05m
STL - KEF
Multiple Airlines
$496
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Keflavik Intl</span> flights.

Flight FAQs

From St. Louis to Keflavik Intl

What airport do you fly from for flights from St. Louis to Reykjavik Keflavik Intl?

Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Reykjavik Keflavik Intl from St. Louis. Booking flights from Lambert-St Louis (STL) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 5 different airlines.

Which airlines flying from Lambert-St Louis to Reykjavik Keflavik Intl have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Delta, American Airlines, and United Airlines flying from Lambert-St Louis to Reykjavik Keflavik Intl have implemented new flexible cancellation policies.

Can I find flights from St. Louis to Reykjavik Keflavik Intl Airport for under $700 on Cheapflights?

Yes, there are multiple flights from St. Louis to Reykjavik Keflavik Intl Airport for under $700. The cheapest flight booked recently is on Multiple Airlines for just $647, but on average you can expect to pay $732.

Are there last-minute flights available from St. Louis to Reykjavik Keflavik Intl Airport for under $1,100?

There are currently 7+ open flights from St. Louis to Reykjavik Keflavik Intl Airport within the next 7 days for less than $1,100.

What are the cheapest airlines flying from St. Louis to Reykjavik Keflavik Intl Airport round-trip?

Our cheapest airline available from St. Louis to Reykjavik Keflavik Intl Airport is British Airways. Our recent data shows that you can find tickets from as low as $713 on this airline. Additional options worth looking into are American Airlines and Finnair, starting at $776 and $783 round-trip. British Airways is 8% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most popular airlines that fly from St. Louis to Reykjavik Keflavik Intl Airport?

Before booking your flight from St. Louis to Reykjavik Keflavik Intl Airport check out the most popular airlines for this route: American Airlines, Air Canada or British Airways.

What are the cheapest flights from St. Louis to Reykjavik Keflavik Intl Airport?

The cheapest flight price from St. Louis to Reykjavik Keflavik Intl Airport is $310. On average you can expect to pay $1,105. The most popular route, (Lambert-St Louis - Reykjavik Keflavik Intl), can usually be booked for $614.

COVID Restrictions

View COVID Travel Restrictions for Keflavik Intl, Iceland

Do I need a COVID test to fly to Keflavik Intl from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Reykjavik Keflavik Intl

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Reykjavik Keflavik Intl.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Reykjavik Keflavik Intl.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Reykjavik Keflavik Intl.

Documents
Contact Tracing App - Recommended

Pre Registration Form - Traveler must submit the form 72 hours before arriving in Iceland.


Do I need a test to fly back to St. Louis from Keflavik Intl?

Returning to Lambert-St Louis from Reykjavik Keflavik Intl

COVID-19 testing requirements
Visitors from Reykjavik Keflavik Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Reykjavik Keflavik Intl are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Keflavik Intl, Iceland

Alternative routes for St. Louis to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Keflavik Intl

Things to know before you go - useful duration and weather info for your trip from St. Louis to Keflavik Intl.
Today's exchange rate
$1 = 128 kr
Average temperature for January in Keflavik Intl
39.2 °F
Avg rainfall for January in Keflavik Intl
2.7 ″

Airports servicing St. Louis

Airports servicing Reykjavik

Top 5 airlines flying from Lambert-St Louis to Reykjavik Keflavik Intl

The chart below displays the airlines Cheapflights users traveling from St. Louis to Keflavik Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Lufthansa
$476 $874 No cancel fee 76%
Air Canada
$564 $665 No cancel fee 67%
Delta
$583 $780 No cancel fee N/A
American Airlines
$584 $761 No cancel fee 71%
United Airlines
$589 $723 No cancel fee 69%
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