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 33% 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.

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 November 2025.

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.

$672 Cheap Flights from St. Louis to Iceland in 2025/26

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Cheap round-trip flights

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7:00 am - 6:15 amSTL-KEF

17h 15m1 stop

5:00 pm - 1:51 pmKEF-STL

25h 51m1 stop

$719Multiple Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

11:39 am - 2:15 pmSTL-KEF

20h 36m2 stops

3:20 pm - 12:05 amKEF-STL

38h 45m2 stops

$730Lufthansa

Find Deal

Wed, Feb 18 - Tue, Feb 24

11:39 am - 2:20 pmSTL-KEF

20h 41m2 stops

3:20 pm - 1:55 pmKEF-STL

28h 35m1 stop

$734Lufthansa

Find Deal

Mon, Feb 23 - Tue, Mar 3

1:11 pm - 2:20 pmSTL-KEF

19h 09m2 stops

3:20 pm - 12:05 amKEF-STL

38h 45m2 stops

$742Lufthansa

Find Deal

Mon, Feb 16 - Tue, Feb 24

6:45 pm - 2:20 pmSTL-KEF

37h 35m2 stops

3:20 pm - 1:55 pmKEF-STL

28h 35m1 stop

$744Lufthansa

Find Deal

Sun, Feb 22 - Tue, Mar 3

6:45 pm - 2:20 pmSTL-KEF

37h 35m2 stops

3:20 pm - 8:23 pmKEF-STL

35h 03m2 stops

$747Lufthansa

Find Deal

Sun, Feb 22 - Tue, Mar 3

6:45 pm - 2:20 pmSTL-KEF

37h 35m2 stops

3:20 pm - 12:05 amKEF-STL

38h 45m2 stops

$748Lufthansa

Find Deal

Sun, Feb 15 - Tue, Feb 24

5:18 pm - 11:30 pmSTL-KEF

25h 12m2 stops

2:20 pm - 1:30 pmKEF-STL

28h 10m1 stop

$754Lufthansa

Find Deal

Tue, May 5 - Tue, May 12

5:18 pm - 11:30 pmSTL-KEF

25h 12m2 stops

12:25 am - 9:04 pmKEF-STL

25h 39m2 stops

$759Lufthansa

Find Deal

Tue, May 5 - Mon, May 11

8:45 am - 6:15 amSTL-KEF

15h 30m1 stop

5:15 pm - 7:50 amKEF-STL

20h 35m1 stop

$764Multiple Airlines

Find Deal

Fri, Feb 20 - Thu, Feb 26

Lufthansa flights from St. Louis to Iceland

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

Lufthansa

Feb 18

STL11:39 amLambert-St Louis

20h 36m

2 stops

KEF2:15 pmReykjavik Keflavik Intl

Feb 24

KEF3:20 pmReykjavik Keflavik Intl

38h 45m

2 stops

STL12:05 amLambert-St Louis

$730

Find similar

Lufthansa

Feb 16

STL1:11 pmLambert-St Louis

19h 09m

2 stops

KEF2:20 pmReykjavik Keflavik Intl

Feb 24

KEF3:20 pmReykjavik Keflavik Intl

38h 45m

2 stops

STL12:05 amLambert-St Louis

$742

Find similar

Lufthansa

Feb 15

STL6:45 pmLambert-St Louis

37h 35m

2 stops

KEF2:20 pmReykjavik Keflavik Intl

Feb 24

KEF3:20 pmReykjavik Keflavik Intl

38h 45m

2 stops

STL12:05 amLambert-St Louis

$748

Find similar

Scandinavian Airlines flights from St. Louis to Iceland

Our best Scandinavian Airlines deals on St. Louis to Iceland flight tickets

Scandinavian Airlines

Dec 8

STL1:57 pmLambert-St Louis

38h 48m

2 stops

KEF10:45 amReykjavik Keflavik Intl

Dec 15

KEF11:30 amReykjavik Keflavik Intl

26h 54m

2 stops

STL8:24 amLambert-St Louis

$866

Find similar

Scandinavian Airlines

Feb 16

STL3:47 pmLambert-St Louis

17h 38m

2 stops

KEF3:25 pmReykjavik Keflavik Intl

Feb 25

KEF11:30 amReykjavik Keflavik Intl

39h 11m

2 stops

STL8:41 pmLambert-St Louis

$890

Find similar

Scandinavian Airlines

Feb 21

STL10:13 amLambert-St Louis

42h 32m

2 stops

KEF10:45 amReykjavik Keflavik Intl

Feb 26

KEF7:35 amReykjavik Keflavik Intl

19h 06m

2 stops

STL8:41 pmLambert-St Louis

$950

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 3/5

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Mon 3/9

5:00 pm-1:51 pm

1 stop25h 51m

$719

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 2/18

11:39 am-2:15 pm

2 stops20h 36m

Reykjavik Keflavik Intl

Tue 2/24

3:20 pm-12:05 am

2 stops38h 45m

$730

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 2/23

11:39 am-2:20 pm

2 stops20h 41m

Reykjavik Keflavik Intl

Tue 3/3

3:20 pm-1:55 pm

1 stop28h 35m

$734

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 2/16

1:11 pm-2:20 pm

2 stops19h 09m

Reykjavik Keflavik Intl

Tue 2/24

3:20 pm-12:05 am

2 stops38h 45m

$742

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 2/22

6:45 pm-2:20 pm

2 stops37h 35m

Reykjavik Keflavik Intl

Tue 3/3

3:20 pm-1:55 pm

1 stop28h 35m

$744

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 2/22

6:45 pm-2:20 pm

2 stops37h 35m

Reykjavik Keflavik Intl

Tue 3/3

3:20 pm-8:23 pm

2 stops35h 03m

$747

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 2/15

6:45 pm-2:20 pm

2 stops37h 35m

Reykjavik Keflavik Intl

Tue 2/24

3:20 pm-12:05 am

2 stops38h 45m

$748

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/5

5:18 pm-11:30 pm

2 stops25h 12m

Reykjavik Keflavik Intl

Tue 5/12

2:20 pm-1:30 pm

1 stop28h 10m

$754

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/5

5:18 pm-11:30 pm

2 stops25h 12m

Reykjavik Keflavik Intl

Mon 5/11

12:25 am-9:04 pm

2 stops25h 39m

$759

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 2/20

8:45 am-6:15 am

1 stop15h 30m

Reykjavik Keflavik Intl

Thu 2/26

5:15 pm-7:50 am

1 stop20h 35m

$764

Flights are sorted by cheapest round-trip flights first.

Sorted 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

Prices

Airlines

What is the cheapest day to depart on your flight to Iceland?

The cheapest day to depart from St. Louis to Iceland is on a Tuesday when prices can be found for as low as $807. Flights from St. Louis to Iceland on a Thursday will generally be more expensive and average around $1,216. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Iceland?

According to our data, the cheapest time of day to fly to Iceland is in the morning. momondo users have found flights departing from St. Louis to Iceland in the morning for as low as $846. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $1,040. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights	None

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 November 2025.
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 10,467 reviews	Search Air Canada flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,034 reviews	Search United Airlines flights
Delta	PriceFrom $636	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
KLM	PriceFrom $828	Free Cancellation	Rating 7.7 1,418 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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Popular cities in Iceland

Flights to Reykjavikfrom $221

Flights to Akureyrifrom $1,103

Flights to Egilsstaðir

Cheap flights from St. Louis to Iceland from $719

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Iceland departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

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Lufthansa flights from St. Louis to Iceland

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

Scandinavian Airlines flights from St. Louis to Iceland

Our best Scandinavian Airlines deals on St. Louis to Iceland flight tickets

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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 day to depart on your flight to Iceland?

What is the cheapest time of day to depart on your flight 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

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