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

There are many flights that can get you from Iceland to St. Louis in 36h 29m. Fly via American Airlines 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.

$611+ Flights from Iceland to St. Louis

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Cheap flight deals from Iceland to St. Louis

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 December 4, 2025.

Thu 1/2211:45 amKEF - STL

2 stops36h 29mAmerican Airlines

Mon 1/2611:05 amSTL - KEF

2 stops41h 45mAmerican Airlines

Deal found 12/2

$948

Last-minute flights from Iceland to St. Louis
Discover last-minute flight deals from Iceland to St. Louis. Data last updated December 4, 2025 and is based on user searches.

Thu 1/2211:45 amKEF - STL

2 stops36h 29mAmerican Airlines

Mon 1/2611:05 amSTL - KEF

2 stops41h 45mAmerican Airlines

Deal found 12/2

$948

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 December 4, 2025.

Fri 5/228:35 amKEF - STL

2 stops19h 48mMultiple Airlines

Deal found 12/2

$611

Fri 5/228:50 amKEF - STL

1 stop9h 27mDelta

Deal found 12/3

$760

Find flight deals from Iceland to St. Louis

Round-trip from	$948 (American Airlines)
One-way from	$611 (American Airlines)

From Iceland to Lambert-St Louis

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One-way flight from Iceland to Lambert-St Louis

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Fly from

Fly to

Route

Depart

Return

Price

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 1/22

11:45 am-6:14 pm

2 stops36h 29m

Lambert-St Louis

Mon 1/26

11:05 am-10:50 am

2 stops41h 45m

$948

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Fri 5/22

8:35 am-11:23 pm

2 stops19h 48m

$611

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Fri 5/22

8:50 am-1:17 pm

1 stop9h 27m

$760

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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.

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

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

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 36h 29m. Fly via American Airlines 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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$611+ 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

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Cheap flight deals from Iceland to St. Louis

Best flights from Iceland to St. LouisDiscover 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 December 4, 2025.

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 December 4, 2025.

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 December 4, 2025.

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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.

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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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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 December 4, 2025.