When did momondo last update prices for flights from Lambert-St Louis Airport to Reykjavik?

Prices for flights from Lambert-St Louis Airport to Reykjavik were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Reykjavik?

As of January 2026, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Reykjavik.

How old do you have to be to fly from Lambert-St Louis Airport to Reykjavik?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Reykjavik.

What documentation or ID do you need to fly to Reykjavik?

The necessary travel and health documents for your Reykjavik trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$429 Cheap Flights from St. Louis to Reykjavik in 2026

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Find the cheapest flights from St. Louis to Reykjavik

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 am - 9:30 am

STL

KEF

17h 40m

2 stops

11:25 am - 8:42 pm

KEF

STL

14h 17m

2 stops

$695Virgin Atlantic

Thu, Apr 16 - Thu, Apr 23

8:41 am - 9:25 am

STL

KEF

19h 44m

1 stop

4:45 pm - 7:51 am

KEF

STL

20h 06m

1 stop

$780Multiple Airlines

Sat, Apr 4 - Fri, Apr 10

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

12:20 am - 1:25 pm

KEF

STL

18h 05m

1 stop

$809Lufthansa

Fri, Apr 3 - Sat, Apr 11

8:41 am - 9:25 am

STL

KEF

19h 44m

1 stop

4:45 pm - 7:51 am

KEF

STL

20h 06m

1 stop

$818Multiple Airlines

Sat, Apr 4 - Sun, Apr 12

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

12:20 am - 9:08 pm

KEF

STL

49h 48m

2 stops

$837Lufthansa

Fri, Apr 3 - Sat, Apr 11

5:00 pm - 9:30 am

STL

KEF

11h 30m

1 stop

11:25 am - 4:40 pm

KEF

STL

10h 15m

1 stop

$839Multiple Airlines

Sun, Jul 12 - Tue, Jul 21

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

2:45 pm - 1:25 pm

KEF

STL

27h 40m

2 stops

$841Lufthansa

Fri, Apr 3 - Sat, Apr 11

11:51 am - 9:30 am

STL

KEF

16h 39m

2 stops

11:25 am - 11:37 pm

KEF

STL

17h 12m

2 stops

$843Virgin Atlantic

Sun, Jul 12 - Tue, Jul 21

5:00 am - 8:45 am

STL

KEF

22h 45m

2 stops

10:00 am - 6:32 pm

KEF

STL

13h 32m

2 stops

$845Air Canada

Tue, Jul 7 - Tue, Jul 14

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

1:10 am - 9:08 pm

KEF

STL

24h 58m

2 stops

$852Lufthansa

Fri, Apr 3 - Thu, Apr 9

Lufthansa flights from St. Louis to Reykjavik

Our best Lufthansa deals on St. Louis to Reykjavik flight tickets

Lufthansa

Apr 3

STL3:30 pmLambert-St Louis

26h 55m

1 stop

KEF11:25 pmReykjavik Keflavik Intl

Apr 11

KEF12:20 amReykjavik Keflavik Intl

18h 05m

1 stop

STL1:25 pmLambert-St Louis

$809

Lufthansa

Apr 3

STL3:30 pmLambert-St Louis

26h 55m

1 stop

KEF11:25 pmReykjavik Keflavik Intl

Apr 11

KEF12:20 amReykjavik Keflavik Intl

49h 48m

2 stops

STL9:08 pmLambert-St Louis

$837

Lufthansa

Apr 3

STL3:30 pmLambert-St Louis

26h 55m

1 stop

KEF11:25 pmReykjavik Keflavik Intl

Apr 11

KEF2:45 pmReykjavik Keflavik Intl

27h 40m

2 stops

STL1:25 pmLambert-St Louis

$841

Delta flights from St. Louis to Reykjavik

Our best Delta deals on St. Louis to Reykjavik flight tickets

Delta

Apr 2

STL7:03 amLambert-St Louis

21h 27m

2 stops

KEF9:30 amReykjavik Keflavik Intl

Apr 10

KEF11:25 amReykjavik Keflavik Intl

41h 00m

2 stops

STL11:25 pmLambert-St Louis

$858

Delta

Apr 2

STL1:34 pmLambert-St Louis

14h 56m

1 stop

KEF9:30 amReykjavik Keflavik Intl

Apr 12

KEF11:25 amReykjavik Keflavik Intl

29h 40m

1 stop

STL12:05 pmLambert-St Louis

$898

Delta

Mar 28

STL7:20 amLambert-St Louis

21h 10m

1 stop

KEF9:30 amReykjavik Keflavik Intl

Apr 4

KEF11:25 amReykjavik Keflavik Intl

29h 54m

1 stop

STL12:19 pmLambert-St Louis

$901

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 4/16

10:50 am-9:30 am

2 stops17h 40m

Reykjavik Keflavik Intl

Thu 4/23

11:25 am-8:42 pm

2 stops14h 17m

$695

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 4/4

8:41 am-9:25 am

1 stop19h 44m

Reykjavik Keflavik Intl

Fri 4/10

4:45 pm-7:51 am

1 stop20h 06m

$780

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Sat 4/11

12:20 am-1:25 pm

1 stop18h 05m

$809

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 4/4

8:41 am-9:25 am

1 stop19h 44m

Reykjavik Keflavik Intl

Sun 4/12

4:45 pm-7:51 am

1 stop20h 06m

$818

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Sat 4/11

12:20 am-9:08 pm

2 stops49h 48m

$837

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 7/12

5:00 pm-9:30 am

1 stop11h 30m

Reykjavik Keflavik Intl

Tue 7/21

11:25 am-4:40 pm

1 stop10h 15m

$839

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Sat 4/11

2:45 pm-1:25 pm

2 stops27h 40m

$841

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 7/12

11:51 am-9:30 am

2 stops16h 39m

Reykjavik Keflavik Intl

Tue 7/21

11:25 am-11:37 pm

2 stops17h 12m

$843

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/7

5:00 am-8:45 am

2 stops22h 45m

Reykjavik Keflavik Intl

Tue 7/14

10:00 am-6:32 pm

2 stops13h 32m

$845

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Thu 4/9

1:10 am-9:08 pm

2 stops24h 58m

$852

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Reykjavik

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Reykjavik?

British Airways is the most popular carrier operating from Lambert-St Louis to Reykjavik

What airlines fly to Reykjavik?

United Airlines, Delta and KLM are the top three most popular airlines that fly to Reykjavik from St. Louis according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Reykjavik. Keep in mind that there are 4 different airlines that fly to Reykjavik on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Reykjavik

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Reykjavik according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Reykjavik (STL to REK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Reykjavik

Fastest flight time	11h 30m
Direct flights	None

The fastest flight from St. Louis to Reykjavik takes 11h 30m

There are no direct flights from St. Louis to Reykjavik. There are no popular flight routes from St. Louis to Reykjavik.

Search flight deals

How far is Lambert-St Louis to Reykjavik by plane?
Reykjavik is 3212.7 mi away from Lambert-St Louis. Typically, this will take 11h 30m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Reykjavik?
Prices for flights from Lambert-St Louis Airport to Reykjavik were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Reykjavik?
As of January 2026, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Reykjavik.
How old do you have to be to fly from Lambert-St Louis Airport to Reykjavik?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Reykjavik.
What documentation or ID do you need to fly to Reykjavik?
The necessary travel and health documents for your Reykjavik trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Reykjavik?
Based on momondo bookings for flights between St. Louis and Reykjavik, the leading airline is Delta, making up 38% of the total bookings. Other popular airlines include United Airlines with 27%, Air Canada with 24%, and KLM with 11%.

Best airlines flying from St. Louis to Reykjavik

Compare and see reviews for airlines that fly from St. Louis to Reykjavik with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $566	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Delta	PriceFrom $636	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
KLM	PriceFrom $828	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights

Selfoss

Hella

Borgarnes

Hveragerdi

Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Reykjavik?

Finding the right flight to Reykjavik from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Reykjavik quick and easy, saving you time and money.

Can I find flights from St. Louis to Reykjavik with flexible booking policies on momondo?

Yes. All flights to Reykjavik from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Reykjavik?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Reykjavik from St. Louis.

I’m not ready to book a flight from St. Louis to Reykjavik right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Reykjavik now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Reykjavik and let you know when they change.

An easier way to manage your Reykjavik trip

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Find better results for your trip to Iceland

Fly into one of these airports located in Reykjavik

Reykjavik Keflavik Intl Airport

Reykjavik Domestic Airport

Cheap flights from St. Louis to Reykjavik from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Reykjavik departing on 3/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

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Find the cheapest flights from St. Louis to Reykjavik

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Lufthansa flights from St. Louis to Reykjavik

Our best Lufthansa deals on St. Louis to Reykjavik flight tickets

Delta flights from St. Louis to Reykjavik

Our best Delta deals on St. Louis to Reykjavik flight tickets

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

See travel insights to Reykjavik from

How to get the cheapest flight ticket from St. Louis to Reykjavik

What is the cheapest airline that flies from Lambert-St Louis to Reykjavik?

British Airways is the most popular carrier operating from Lambert-St Louis to Reykjavik

What airlines fly to Reykjavik?

When to book flights from St. Louis to Reykjavik

Cheap St. Louis to Reykjavik (STL to REK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Reykjavik

Fastest flight time

Direct flights

How far is Lambert-St Louis to Reykjavik by plane?

When did momondo last update prices for flights from Lambert-St Louis Airport to Reykjavik?

How many operators does momondo search for flights from Lambert-St Louis Airport to Reykjavik?

How old do you have to be to fly from Lambert-St Louis Airport to Reykjavik?

What documentation or ID do you need to fly to Reykjavik?

What is the most popular airline from St. Louis to Reykjavik?

Best airlines flying from St. Louis to Reykjavik

Compare and see reviews for airlines that fly from St. Louis to Reykjavik with momondo

Traveling to a place near Reykjavik?

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Reykjavik?

Can I find flights from St. Louis to Reykjavik with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Reykjavik?

I’m not ready to book a flight from St. Louis to Reykjavik right now. Can momondo alert me if prices change?

An easier way to manage your Reykjavik trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Iceland

Fly into one of these airports located in Reykjavik

Airports listed have a maximum distance of 23.0 mi from Reykjavik