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$569+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
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 January 30, 2025.

Round-trip from

$656
(Orbitz)
From Lambert-St Louis to Iceland
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Find flight deals from St. Louis to Iceland

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 January 30, 2025.

This Air Canada deal was found by Cheapflights users on 1/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/214:05 pmSTL - KEF
1 stop11h 30mAir Canada
Mon 9/2910:00 amKEF - STL
2 stops38h 57mAir Canada
Deal found 1/28$569
This United deal was found by Cheapflights users on 1/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:30 amSTL - KEF
1 stop18h 30mMultiple Airlines
Mon 9/2910:00 amKEF - STL
2 stops38h 57mMultiple Airlines
Deal found 1/28$602
This United deal was found by Cheapflights users on 1/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/213:15 pmSTL - KEF
2 stops12h 20mUnited Airlines
Mon 9/2910:00 amKEF - STL
3 stops58h 21mUnited Airlines
Deal found 1/28$716
This Orbitz deal was found by Cheapflights users on 1/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/283:30 pmSTL - KEF
2 stops42h 40mLufthansa
Sat 10/112:20 pmKEF - STL
1 stop28h 10mLufthansa
Deal found 1/29$744
This Fareboom deal was found by Cheapflights users on 1/28. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:59 amSTL - KEF
2 stops40h 56mBritish Airways
Mon 3/1011:45 amKEF - STL
2 stops35h 14mBritish Airways
Deal found 1/28$759
This KLM deal was found by Cheapflights users on 1/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1210:45 amSTL - KEF
1 stop14h 35mKLM
Tue 5/208:50 amKEF - STL
1 stop13h 00mKLM
Deal found 1/29$887
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2110:59 amSTL - KEF
2 stops30h 21mScandinavian Airlines
Tue 2/253:40 pmKEF - STL
2 stops37h 56mScandinavian Airlines
Deal found 1/29$951
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:00 pmSTL - KEF
1 stop16h 30mDelta
Wed 10/811:25 amKEF - STL
1 stop14h 29mDelta
Deal found 1/29$976
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:00 amSTL - KEF
2 stops17h 55mAlaska Airlines
Fri 10/174:50 pmKEF - STL
2 stops26h 02mAlaska Airlines
Deal found 1/29$1,134

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 3/26

11:55 am-10:55 am

2 stops42h 00m

Reykjavik Keflavik Intl

Tue 4/1

5:15 pm-10:18 pm

2 stops34h 03m

$656

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 3/6

11:59 am-10:55 am

2 stops40h 56m

Reykjavik Keflavik Intl

Mon 3/10

11:45 am-5:59 pm

2 stops35h 14m

$759

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 3/26

5:33 pm-1:55 pm

2 stops39h 22m

Reykjavik Keflavik Intl

Tue 4/1

2:20 pm-1:30 pm

1 stop28h 10m

$813

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 2/21

10:59 am-11:20 pm

2 stops30h 21m

Reykjavik Keflavik Intl

Tue 2/25

3:40 pm-11:36 pm

2 stops37h 56m

$951

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 3/6

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Mon 3/10

5:05 pm-2:25 pm

1 stop26h 20m

$1,270

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 2/13

1:52 pm-5:35 pm

2 stops21h 43m

Reykjavik Keflavik Intl

Wed 2/19

11:45 am-8:47 am

3 stops27h 02m

$12,730

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 June is currently the most expensive (average of $662). 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 January 30, 2025.

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 January 30, 2025.
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,686 reviews
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Scandinavian Airlines
7.3
Good
1,315 reviews
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Lufthansa
6.7
Okay
7,053 reviews
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

British Airways
6.6
Okay
6,796 reviews
Alaska Airlines
8.0
Very good
9,686 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 June is currently the most expensive (average of $662). 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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Alternative routes for St. Louis to Iceland

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$568Average$851FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$595Average$921FlexibilityNo cancel feeOn-time69%
DeltaCheapest$666Average$883FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$675Average$1,142FlexibilityNo cancel feeOn-time75%
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