How long is the flight from St. Louis to Reykjavik?

For as low as $811, KLM can have you in Reykjavik from St. Louis in 13h 50m. Airlines will cover a distance of 3191 mi.

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

Currently priced at $566, Air Canada will fly you from St. Louis to Reykjavik and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $595 and $636, respectively. Users have found that Air Canada is 43% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Reykjavik ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik when rainfall is around 1.6 in.

If weather is an important factor for your trip to Reykjavik, 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 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

When booking a flight from St. Louis to Reykjavik, you may want to consider flying on United Airlines, Delta or KLM as they are the most popular for this route.

What is the cheapest time of day to fly from STL to REK?

When flying from St. Louis to Reykjavik, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on St. Louis-Reykjavik flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Reykjavik flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Reykjavik flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Reykjavik flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Reykjavik flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

If you book a flight to Reykjavik from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Reykjavik per day from 4 different airlines.

Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Reykjavik?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Reykjavik.

Can I find deals for business class flights from St. Louis to Reykjavik?

Yes. Cheapflights offers flight deals from St. Louis to Reykjavik by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$598+ Flights from St. Louis to Reykjavik

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Cheap flight deals from St. Louis to Reykjavik

Cheapest flights from St. Louis to Reykjavik
Explore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Tue 12/231:00 pmSTL - KEF

1 stop11h 30mMultiple Airlines

Fri 1/24:45 pmKEF - STL

1 stop9h 55mMultiple Airlines

Deal found 12/16

$2,416

Fri 12/196:45 amSTL - KEF

1 stop17h 30mMultiple Airlines

Fri 1/24:45 pmKEF - STL

1 stop9h 55mMultiple Airlines

Deal found 12/15

$3,061

Best flights from St. Louis to Reykjavik
Discover carefully curated flight deals from St. Louis to Reykjavik that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Wed 4/296:29 pmSTL - KEF

2 stops32h 21mMultiple Airlines

Mon 5/48:35 amKEF - STL

2 stops19h 49mMultiple Airlines

Deal found 12/17

$598

Fri 5/1512:10 pmSTL - KEF

1 stop13h 50mKLM

Fri 5/2211:25 amKEF - STL

1 stop10h 15mKLM

Deal found 12/16

$811

Sat 1/319:59 amSTL - KEF

2 stops23h 26mScandinavian Airlines

Sat 2/77:35 amKEF - STL

2 stops22h 01mScandinavian Airlines

Deal found 12/17

$885

Fri 1/166:40 pmSTL - KEF

2 stops37h 40mLufthansa

Fri 1/233:25 pmKEF - STL

2 stops32h 18mLufthansa

Deal found 12/17

$901

Thu 4/26:33 pmSTL - KEF

2 stops16h 52mMultiple Airlines

Sun 4/55:10 pmKEF - STL

2 stops35h 42mMultiple Airlines

Deal found 12/16

$605

Wed 3/118:25 amSTL - KEF

1 stop17h 10mMultiple Airlines

Thu 3/195:00 pmKEF - STL

1 stop22h 50mMultiple Airlines

Deal found 12/17

$850

Mon 4/134:00 pmSTL - KEF

1 stop9h 25mMultiple Airlines

Sat 4/184:45 pmKEF - STL

1 stop21h 45mMultiple Airlines

Deal found 12/17

$869

Fri 1/3011:18 amSTL - KEF

1 stop12h 57mMultiple Airlines

Fri 2/65:15 pmKEF - STL

2 stops27h 31mMultiple Airlines

Deal found 12/15

$881

Sat 1/311:45 pmSTL - KEF

1 stop10h 50mMultiple Airlines

Sat 2/74:45 pmKEF - STL

1 stop22h 50mMultiple Airlines

Deal found 12/17

$884

Last-minute flights from St. Louis to Reykjavik
Discover last-minute flight deals from St. Louis to Reykjavik. Data last updated December 18, 2025 and is based on user searches.

Wed 1/72:35 pmSTL - KEF

1 stop9h 55mMultiple Airlines

Thu 1/155:00 pmKEF - STL

1 stop22h 00mMultiple Airlines

Deal found 12/16

$926

Tue 1/132:35 pmSTL - KEF

1 stop9h 55mMultiple Airlines

Tue 1/204:55 pmKEF - STL

1 stop23h 20mMultiple Airlines

Deal found 12/16

$940

Wed 1/146:50 amSTL - KEF

1 stop17h 40mMultiple Airlines

Wed 1/214:45 pmKEF - STL

1 stop22h 50mMultiple Airlines

Deal found 12/17

$948

Fri 1/166:40 pmSTL - KEF

2 stops37h 40mLufthansa

Fri 1/233:25 pmKEF - STL

2 stops32h 18mLufthansa

Deal found 12/17

$901

Fri 1/169:40 amSTL - KEF

1 stop14h 55mMultiple Airlines

Fri 1/235:00 pmKEF - STL

1 stop25h 50mMultiple Airlines

Deal found 12/17

$965

Thu 1/2212:00 pmSTL - KEF

2 stops40h 40mScandinavian Airlines

Sun 1/254:15 pmKEF - STL

2 stops37h 22mScandinavian Airlines

Deal found 12/16

$962

Fri 1/3011:18 amSTL - KEF

1 stop12h 57mMultiple Airlines

Fri 2/65:15 pmKEF - STL

2 stops27h 31mMultiple Airlines

Deal found 12/15

$881

Sat 1/311:45 pmSTL - KEF

1 stop10h 50mMultiple Airlines

Sat 2/74:45 pmKEF - STL

1 stop22h 50mMultiple Airlines

Deal found 12/17

$884

Sat 1/319:59 amSTL - KEF

2 stops23h 26mScandinavian Airlines

Sat 2/77:35 amKEF - STL

2 stops22h 01mScandinavian Airlines

Deal found 12/17

$885

Find flight deals from St. Louis to Reykjavik

Most accurate provider	FlightHub 3 stars
Most trusted provider	Expedia 3 stars
Round-trip from	$598 (American Airlines)
Popular in	March
Cheapest in	January

Provider with most accurate pricing for Lambert-St Louis-Reykjavik (REK) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Reykjavik (REK) flights.

Search Deals

From Lambert-St Louis to Reykjavik (REK)

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($107 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Reykjavik that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/29

6:29 pm-7:50 am

2 stops32h 21m

Reykjavik Keflavik Intl

Mon 5/4

8:35 am-11:24 pm

2 stops19h 49m

$598

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 4/2

6:33 pm-4:25 pm

2 stops16h 52m

Reykjavik Keflavik Intl

Sun 4/5

5:10 pm-11:52 pm

2 stops35h 42m

$605

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 5/15

12:10 pm-7:00 am

1 stop13h 50m

Reykjavik Keflavik Intl

Fri 5/22

11:25 am-4:40 pm

1 stop10h 15m

$811

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 3/11

8:25 am-6:35 am

1 stop17h 10m

Reykjavik Keflavik Intl

Thu 3/19

5:00 pm-10:50 am

1 stop22h 50m

$850

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 4/13

4:00 pm-6:25 am

1 stop9h 25m

Reykjavik Keflavik Intl

Sat 4/18

4:45 pm-9:30 am

1 stop21h 45m

$869

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 1/30

11:18 am-6:15 am

1 stop12h 57m

Reykjavik Keflavik Intl

Fri 2/6

5:15 pm-2:46 pm

2 stops27h 31m

$881

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 1/31

1:45 pm-6:35 am

1 stop10h 50m

Reykjavik Keflavik Intl

Sat 2/7

4:45 pm-9:35 am

1 stop22h 50m

$884

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 1/31

9:59 am-3:25 pm

2 stops23h 26m

Reykjavik Keflavik Intl

Sat 2/7

7:35 am-11:36 pm

2 stops22h 01m

$885

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 1/16

6:40 pm-2:20 pm

2 stops37h 40m

Reykjavik Keflavik Intl

Fri 1/23

3:25 pm-5:43 pm

2 stops32h 18m

$901

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Compare providers for flights from St. Louis to Reykjavik

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Reykjavik in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Reykjavik flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Reykjavik flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Reykjavik flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Reykjavik flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Reykjavik flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis with our price prediction graph.

Estimated round-trip 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 from St. Louis to Reykjavik

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Reykjavik

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Reykjavik to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

KLM

7.7

Good

1,428 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,095 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,534 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from St. Louis to Reykjavik?
If you book a flight to Reykjavik from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Reykjavik per day from 4 different airlines.
How long is the flight from St. Louis to Reykjavik?
For as low as $811, KLM can have you in Reykjavik from St. Louis in 13h 50m. Airlines will cover a distance of 3191 mi.
What are the cheapest airlines flying from St. Louis to Reykjavik round-trip?
Currently priced at $566, Air Canada will fly you from St. Louis to Reykjavik and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $595 and $636, respectively. Users have found that Air Canada is 43% cheaper than the other options available to this destination.
Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?
Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Reykjavik?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Reykjavik.
Can I find deals for business class flights from St. Louis to Reykjavik?
Yes. Cheapflights offers flight deals from St. Louis to Reykjavik by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 4 airlines flying from St. Louis to Reykjavik

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$566	Average$763	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$595	Average$1,069	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$636	Average$1,036	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$828	Average$1,141	FlexibilityNo cancel fee	On-time75%

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$598+ Cheap flights from St. Louis (STL) to Reykjavik (REK)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Reykjavik with Cheapflights

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Cheap flight deals from St. Louis to Reykjavik

Cheapest flights from St. Louis to ReykjavikExplore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from St. Louis to Reykjavik

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Reykjavik that are best for you.

Compare providers for flights from St. Louis to Reykjavik

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Reykjavik in December.

Best time to book a flight from St. Louis to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Reykjavik

Reviews of airlines servicing Reykjavik

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Reykjavik to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Reykjavik. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from St. Louis to Reykjavik?

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

Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

How can I find direct flights from St. Louis to Reykjavik?

Can I find deals for business class flights from St. Louis to Reykjavik?

Traveling to a place near Reykjavik?

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Alternative routes for St. Louis to Reykjavik

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Top 4 airlines flying from St. Louis to Reykjavik

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Cheapest flights from St. Louis to Reykjavik
Explore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.