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

There are many flights that can get you from Iceland to St. Louis in 38h 21m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 3191 mi.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

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

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

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Iceland to St. Louis.

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

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

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

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

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

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

$612+ Flights from Iceland to St. Louis

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Cheap flight deals from Iceland to St. Louis

Cheapest flights from Iceland to St. Louis
Explore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

Mon 3/95:00 pm

KEF

STL

1 stop25h 51m

Multiple Airlines

Mon 3/167:00 am

STL

KEF

1 stop18h 15m

Multiple Airlines

Deal found 1/23

$1,135

Mon 3/911:50 am

KEF

STL

2 stops38h 21m

British Airways

Mon 3/166:33 pm

STL

KEF

2 stops35h 17m

British Airways

Deal found 1/23

$1,189

Best flights from Iceland to St. Louis
Discover carefully curated flight deals from Iceland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 24, 2026.

Mon 3/95:00 pm

KEF

STL

1 stop25h 51m

Multiple Airlines

Mon 3/167:00 am

STL

KEF

1 stop18h 15m

Multiple Airlines

Deal found 1/23

$1,135

Mon 3/911:50 am

KEF

STL

2 stops38h 21m

British Airways

Mon 3/166:33 pm

STL

KEF

2 stops35h 17m

British Airways

Deal found 1/23

$1,189

One-way flights from Iceland to St. Louis
Search for one-way flight options from Iceland to St. Louis. Find affordable one-way fares based on user searches. Data last updated January 24, 2026.

Fri 5/225:10 pm

KEF

STL

2 stops35h 32m

Finnair

Deal found 1/22

$612

Fri 5/2211:25 am

KEF

STL

1 stop10h 15m

KLM

Deal found 1/22

$791

Fri 5/228:50 am

KEF

STL

1 stop12h 59m

Delta

Deal found 1/23

$882

Find flight deals from Iceland to St. Louis

Round-trip from	$1,135 (Kiwi.com)
One-way from	$612 (Finnair)

From Iceland to Lambert-St Louis

Search Deals

One-way flight from Iceland to Lambert-St Louis

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Mon 3/9

5:00 pm-1:51 pm

1 stop25h 51m

Lambert-St Louis

Mon 3/16

7:00 am-6:15 am

1 stop18h 15m

$1,135

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Mon 3/9

11:50 am-9:11 pm

2 stops38h 21m

Lambert-St Louis

Mon 3/16

6:33 pm-10:50 am

2 stops35h 17m

$1,189

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Fri 5/22

5:10 pm-11:42 pm

2 stops35h 32m

$612

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Fri 5/22

11:25 am-4:40 pm

1 stop10h 15m

$791

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Fri 5/22

8:50 am-4:49 pm

1 stop12h 59m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Iceland 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 Iceland to St. Louis

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Related info for your journey

What airport do you fly into for flights to St. Louis from Iceland?
Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Iceland to St. Louis.
How long is the flight from Iceland to St. Louis?
There are many flights that can get you from Iceland to St. Louis in 38h 21m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 3191 mi.
Can I find deals for flights from Iceland to St. Louis that include hotel bookings?
Yes. In addition to deals on Iceland to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Iceland to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Iceland to St. Louis.
Can I find deals for business class flights from Iceland to St. Louis?
Yes. Cheapflights offers flight deals from Iceland to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$612+ Cheap flights from Iceland to St. Louis (STL)

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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Iceland to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Iceland to St. Louis

Cheapest flights from Iceland to St. LouisExplore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

Explore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

Find flight deals from Iceland to St. Louis

Keep the following information in mind while searching for Iceland to St. Louis flight deals. Data was last updated January 24, 2026.

Round-trip from

One-way from

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

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

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

Cheapflights Insights

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

Related info for your journey

Find useful and relevant information for your journey from Iceland to St. Louis. 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 into for flights to St. Louis from Iceland?

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

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

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

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

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Cheapest flights from Iceland to St. Louis
Explore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.