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.

$416 Cheap Flights from St. Louis to Iceland in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

12:27 pm - 4:30 pm

STL

KEF

23h 03m2 stops

8:35 am - 7:30 pm

KEF

STL

39h 55m2 stops

$506Multiple Airlines

Tue, Apr 7 - Mon, Apr 13

10:11 pm - 6:05 am

STL

KEF

25h 54m2 stops

4:55 pm - 1:09 pm

KEF

STL

26h 14m1 stop

$763Multiple Airlines

Thu, Feb 19 - Thu, Feb 26

12:04 pm - 9:30 am

STL

KEF

16h 26m2 stops

11:25 am - 8:42 pm

KEF

STL

14h 17m2 stops

$793Virgin Atlantic

Wed, Apr 1 - Thu, Apr 9

7:00 am - 6:15 am

STL

KEF

17h 15m1 stop

5:00 pm - 1:51 pm

KEF

STL

26h 51m1 stop

$813Multiple Airlines

Thu, Feb 19 - Thu, Feb 26

12:03 pm - 6:05 am

STL

KEF

12h 02m1 stop

4:55 pm - 1:09 pm

KEF

STL

26h 14m1 stop

$852Multiple Airlines

Sun, Feb 8 - Sun, Feb 15

3:30 pm - 1:05 pm

STL

KEF

16h 35m1 stop

2:10 pm - 1:25 pm

KEF

STL

28h 15m1 stop

$865Lufthansa

Wed, Apr 1 - Thu, Apr 9

3:47 pm - 10:45 am

STL

KEF

36h 58m2 stops

7:35 am - 8:41 pm

KEF

STL

19h 06m2 stops

$935Scandinavian Airlines

Fri, Feb 20 - Fri, Feb 27

10:16 am - 11:15 am

STL

KEF

42h 59m2 stops

5:00 pm - 1:54 pm

KEF

STL

26h 54m1 stop

$949Multiple Airlines

Mon, Feb 2 - Mon, Feb 9

3:30 pm - 1:05 pm

STL

KEF

16h 35m1 stop

12:20 am - 3:24 pm

KEF

STL

44h 04m2 stops

$960Multiple Airlines

Wed, Apr 1 - Wed, Apr 8

10:11 am - 11:55 pm

STL

KEF

31h 44m2 stops

7:35 am - 11:58 pm

KEF

STL

21h 23m2 stops

$963Scandinavian Airlines

Sat, Mar 7 - Sat, Mar 14

KLM flights from St. Louis to Iceland

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

KLM

Apr 11

STL10:07 amLambert-St Louis

18h 23m

2 stops

KEF9:30 amReykjavik Keflavik Intl

Apr 18

KEF11:25 amReykjavik Keflavik Intl

17h 08m

2 stops

STL11:33 pmLambert-St Louis

$594

Find similar

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

Find similar

KLM

Jul 2

STL1:30 pmLambert-St Louis

15h 00m

2 stops

KEF9:30 amReykjavik Keflavik Intl

Jul 12

KEF11:25 amReykjavik Keflavik Intl

10h 15m

1 stop

STL4:40 pmLambert-St Louis

$1,058

Find similar

United Airlines flights from St. Louis to Iceland

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

United Airlines

May 10

STL6:00 pmLambert-St Louis

57h 30m

2 stops

KEF8:30 amReykjavik Keflavik Intl

May 17

KEF12:00 pmReykjavik Keflavik Intl

37h 54m

2 stops

STL8:54 pmLambert-St Louis

$835

Find similar

United Airlines

May 10

STL6:00 pmLambert-St Louis

57h 30m

2 stops

KEF8:30 amReykjavik Keflavik Intl

May 17

KEF12:00 pmReykjavik Keflavik Intl

31h 18m

1 stop

STL2:18 pmLambert-St Louis

$859

Find similar

United Airlines

Jun 12

STL2:20 pmLambert-St Louis

13h 25m

1 stop

KEF8:45 amReykjavik Keflavik Intl

Jun 19

KEF9:15 amReykjavik Keflavik Intl

15h 50m

1 stop

STL8:05 pmLambert-St Louis

$916

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 4/7

12:27 pm-4:30 pm

2 stops23h 03m

Reykjavik Keflavik Intl

Mon 4/13

8:35 am-7:30 pm

2 stops39h 55m

$506

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 2/19

10:11 pm-6:05 am

2 stops25h 54m

Reykjavik Keflavik Intl

Thu 2/26

4:55 pm-1:09 pm

1 stop26h 14m

$763

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/1

12:04 pm-9:30 am

2 stops16h 26m

Reykjavik Keflavik Intl

Thu 4/9

11:25 am-8:42 pm

2 stops14h 17m

$793

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 2/19

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Thu 2/26

5:00 pm-1:51 pm

1 stop26h 51m

$813

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 2/8

12:03 pm-6:05 am

1 stop12h 02m

Reykjavik Keflavik Intl

Sun 2/15

4:55 pm-1:09 pm

1 stop26h 14m

$852

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/1

3:30 pm-1:05 pm

1 stop16h 35m

Reykjavik Keflavik Intl

Thu 4/9

2:10 pm-1:25 pm

1 stop28h 15m

$865

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 2/20

3:47 pm-10:45 am

2 stops36h 58m

Reykjavik Keflavik Intl

Fri 2/27

7:35 am-8:41 pm

2 stops19h 06m

$935

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 2/2

10:16 am-11:15 am

2 stops42h 59m

Reykjavik Keflavik Intl

Mon 2/9

5:00 pm-1:54 pm

1 stop26h 54m

$949

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/1

3:30 pm-1:05 pm

1 stop16h 35m

Reykjavik Keflavik Intl

Wed 4/8

12:20 am-3:24 pm

2 stops44h 04m

$960

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 3/7

10:11 am-11:55 pm

2 stops31h 44m

Reykjavik Keflavik Intl

Sat 3/14

7:35 am-11:58 pm

2 stops21h 23m

$963

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 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?

KLM, United Airlines, and WestJet 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 38% 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	11h 02m
Direct flights	None

The fastest flight from St. Louis to Iceland takes 11h 02m

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 10,602 reviews	Search Air Canada flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights
Delta	PriceFrom $636	Free Cancellation	Rating 7.9 8,025 reviews	Search Delta flights
KLM	PriceFrom $828	Free Cancellation	Rating 7.7 1,434 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 2/6

Fri 2/13

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Iceland

Popular cities in Iceland

Flights to Reykjavikfrom $323

Flights to Akureyrifrom $735

Flights to Egilsstaðir

Cheap flights from St. Louis to Iceland from $416

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 4/13. 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

United Airlines flights from St. Louis to Iceland

Our best United Airlines 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?

KLM, United Airlines, and WestJet 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