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$672+ Cheap flights from St. Louis (STL) to Iceland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from St. Louis to Iceland

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Iceland (IS0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$672
(KLM)
From Lambert-St Louis to Iceland
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Cheapest flights from St. Louis to Iceland
Explore the most affordable flight options available from St. Louis to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1712:15 pmSTL - KEF
2 stops12h 25mMultiple Airlines
Tue 12/244:55 pmKEF - STL
1 stop21h 18mMultiple Airlines
Deal found 12/16$1,434

Find flights from St. Louis to Iceland within your budget

Customize your flight search to find flights from St. Louis to Iceland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

12:00 pm-9:30 am

1 stop16h 30m

Reykjavik Keflavik Intl

Fri 5/23

11:25 am-8:42 pm

2 stops14h 17m

$672

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 5/4

5:31 pm-11:35 pm

2 stops25h 04m

Reykjavik Keflavik Intl

Sat 5/10

2:20 pm-1:30 pm

1 stop28h 10m

$779

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

10:10 am-9:30 am

2 stops18h 20m

Reykjavik Keflavik Intl

Fri 5/23

11:25 am-8:42 pm

2 stops14h 17m

$780

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 1/29

2:00 pm-11:20 pm

2 stops27h 20m

Reykjavik Keflavik Intl

Wed 2/5

7:35 am-11:36 pm

2 stops22h 01m

$820

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 4/19

6:25 pm-4:55 pm

2 stops17h 30m

Reykjavik Keflavik Intl

Fri 4/25

5:40 pm-9:56 pm

2 stops33h 16m

$877

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/26

5:18 pm-8:30 am

1 stop10h 12m

Reykjavik Keflavik Intl

Sun 6/1

12:00 pm-9:04 pm

1 stop14h 04m

$1,353

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 3/21

6:29 pm-10:40 am

2 stops35h 11m

Reykjavik Keflavik Intl

Sun 3/23

6:20 pm-5:59 pm

2 stops28h 39m

$1,424

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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

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

Travel insights for flights from St. Louis to Iceland

Get recent, data-driven insights about flights from St. Louis to Iceland including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Iceland?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Iceland (average of $328). Flying from St. Louis to Iceland in July is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from St. Louis to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

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

Rainfall in Iceland by month

Plan your trip to Iceland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Iceland ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Iceland when rainfall is around 1.6 in.

Temperature in Iceland by month

Plan your trip to Iceland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Iceland, 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 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Iceland

Get insights into the airlines that provide service to Iceland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iceland. Reviews last updated December 18, 2024.
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

KLM
7.8
Good
1,349 reviews
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Finnair
7.7
Good
1,285 reviews
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

United Airlines
7.4
Good
9,059 reviews
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Scandinavian Airlines
7.3
Good
1,309 reviews
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Lufthansa
6.8
Okay
7,091 reviews
KLM
7.8
Good
1,349 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Related info for your journey

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

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Iceland. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from St. Louis to Iceland?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Iceland (average of $328). Flying from St. Louis to Iceland in July is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from St. Louis to Iceland

Discover the top 4 airlines that operate flights from St. Louis to Iceland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$568Average$977FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$595Average$922FlexibilityNo cancel feeOn-time69%
DeltaCheapest$666Average$873FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$675Average$1,142FlexibilityNo cancel feeOn-time75%
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