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

Prices for flights from Lambert-St Louis Airport to Iceland are refreshed on a daily basis.

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

The number of operators available for flights from Lambert-St Louis Airport to Iceland is 4 as of January 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Iceland.

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

The travel and health documents required for your trip to Iceland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Iceland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$509 Cheap Flights from St. Louis to Iceland in 2026

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Find the cheapest flights from St. Louis to Iceland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 6:15 am

STL

KEF

17h 15m

1 stop

5:00 pm - 1:51 pm

KEF

STL

26h 51m

1 stop

$702Multiple Airlines

Wed, Feb 18 - Wed, Feb 25

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

2:45 pm - 1:25 pm

KEF

STL

27h 40m

2 stops

$709Lufthansa

Fri, Apr 3 - Sat, Apr 11

7:00 am - 6:15 am

STL

KEF

18h 15m

1 stop

7:45 pm - 3:20 pm

KEF

STL

24h 35m

1 stop

$733Multiple Airlines

Wed, Apr 1 - Wed, Apr 8

3:30 pm - 12:10 am

STL

KEF

27h 40m

2 stops

2:45 pm - 1:25 pm

KEF

STL

27h 40m

2 stops

$750Lufthansa

Fri, Apr 3 - Sat, Apr 11

7:00 am - 6:15 am

STL

KEF

17h 15m

1 stop

5:00 pm - 3:42 pm

KEF

STL

28h 42m

2 stops

$798Multiple Airlines

Wed, Feb 18 - Wed, Feb 25

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

12:25 am - 9:08 pm

KEF

STL

49h 43m

2 stops

$805Lufthansa

Fri, Apr 3 - Fri, Apr 10

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

2:20 pm - 1:25 pm

KEF

STL

28h 05m

1 stop

$825Lufthansa

Fri, Apr 3 - Sat, Apr 11

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

2:20 pm - 1:25 pm

KEF

STL

28h 05m

1 stop

$832Lufthansa

Fri, Apr 3 - Sat, Apr 11

3:30 pm - 11:25 pm

STL

KEF

26h 55m

1 stop

2:20 pm - 1:25 pm

KEF

STL

28h 05m

1 stop

$833Lufthansa

Fri, Apr 3 - Sat, Apr 11

3:30 pm - 12:10 am

STL

KEF

27h 40m

2 stops

12:25 am - 9:08 pm

KEF

STL

49h 43m

2 stops

$846Lufthansa

Fri, Apr 3 - Fri, Apr 10

KLM flights from St. Louis to Iceland

Our best KLM deals on St. Louis to Iceland flight tickets

KLM

Jul 1

STL2:18 pmLambert-St Louis

11h 02m

1 stop

KEF6:20 amReykjavik Keflavik Intl

Jul 10

KEF11:25 amReykjavik Keflavik Intl

10h 15m

1 stop

STL4:40 pmLambert-St Louis

$913

KLM

Jul 1

STL2:18 pmLambert-St Louis

11h 02m

1 stop

KEF6:20 amReykjavik Keflavik Intl

Jul 10

KEF11:25 amReykjavik Keflavik Intl

10h 15m

1 stop

STL4:40 pmLambert-St Louis

$914

Lufthansa flights from St. Louis to Iceland

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

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

$709

Lufthansa

Apr 3

STL3:30 pmLambert-St Louis

27h 40m

2 stops

KEF12:10 amReykjavik Keflavik Intl

Apr 11

KEF2:45 pmReykjavik Keflavik Intl

27h 40m

2 stops

STL1:25 pmLambert-St Louis

$750

Lufthansa

May 6

STL3:30 pmLambert-St Louis

16h 35m

1 stop

KEF1:05 pmReykjavik Keflavik Intl

May 12

KEF2:10 pmReykjavik Keflavik Intl

28h 15m

1 stop

STL1:25 pmLambert-St Louis

$776

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 2/18

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Wed 2/25

5:00 pm-1:51 pm

1 stop26h 51m

$702

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

$709

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/1

7:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Wed 4/8

7:45 pm-3:20 pm

1 stop24h 35m

$733

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-12:10 am

2 stops27h 40m

Reykjavik Keflavik Intl

Sat 4/11

2:45 pm-1:25 pm

2 stops27h 40m

$750

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 2/18

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Wed 2/25

5:00 pm-3:42 pm

2 stops28h 42m

$798

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Fri 4/10

12:25 am-9:08 pm

2 stops49h 43m

$805

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

2:20 pm-1:25 pm

1 stop28h 05m

$825

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

2:20 pm-1:25 pm

1 stop28h 05m

$832

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

2:20 pm-1:25 pm

1 stop28h 05m

$833

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-12:10 am

2 stops27h 40m

Reykjavik Keflavik Intl

Fri 4/10

12:25 am-9:08 pm

2 stops49h 43m

$846

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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 Iceland?

WestJet and Delta are the most popular carriers operating from Lambert-St Louis to Iceland

What airlines fly to Iceland?

United Airlines, Delta and KLM are the top three most popular airlines that fly to Iceland 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 Iceland. Keep in mind that there are 4 different airlines that fly to Iceland on a routine basis, so you have a few additional options to choose from.

Cheap St. Louis to Iceland flight deals and tips

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

Fastest flight time	8h 41m
Direct flights	None

The fastest flight from St. Louis to Iceland takes 8h 41m

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

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Iceland?
Prices for flights from Lambert-St Louis Airport to Iceland are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Iceland?
The number of operators available for flights from Lambert-St Louis Airport to Iceland is 4 as of January 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Iceland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Iceland.
What documentation or ID do you need to fly to Iceland?
The travel and health documents required for your trip to Iceland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Iceland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Iceland

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $566	Free Cancellation	Rating 7.1 10,646 reviews	Search Air Canada flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,191 reviews	Search United Airlines flights
Delta	PriceFrom $636	Free Cancellation	Rating 7.9 8,088 reviews	Search Delta flights
KLM	PriceFrom $828	Free Cancellation	Rating 7.7 1,442 reviews	Search KLM flights

Why use momondo?

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

Finding the right flight to Iceland 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 Iceland quick and easy, saving you time and money.

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

Flights from St. Louis to Iceland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Iceland.

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

Price alerts on flights to Iceland from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Iceland 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.

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Find better results for your trip to Iceland

Popular cities in Iceland

Flights to Reykjavikfrom $284

Flights to Akureyrifrom $604

Flights to Egilsstaðir

Cheap flights from St. Louis to Iceland from $601

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 Iceland departing on 6/15. 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

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to Iceland

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

KLM flights from St. Louis to Iceland

Our best KLM deals on St. Louis to Iceland flight tickets

Lufthansa flights from St. Louis to Iceland

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

momondo Fare Finder

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

See travel insights to Iceland from

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

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

WestJet and Delta are the most popular carriers operating from Lambert-St Louis to Iceland

What airlines fly to Iceland?

Cheap St. Louis to Iceland flight deals and tips

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

Fastest flight time

Direct flights

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

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

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

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

Best airlines flying from St. Louis to Iceland

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

Why use momondo?

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

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

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

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

An easier way to manage your Iceland 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

Popular cities in Iceland

Popular flights according to clicks in the last 7 days on momondo