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Iceland

$417+ Cheap flights from St. Louis (STL) to Iceland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
1 adult, Economy
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Cheap flight deals from St. Louis to Iceland

Keep the following information in mind while searching for St. Louis to Iceland flight deals. Data was last updated marzo 28, 2025.

Round-trip from

$800
(Air Canada)
From Lambert-St Louis to Iceland
Search Deals

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 marzo 28, 2025.

This Expedia deal was found by Cheapflights users on 3/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1011:14 amSTL - KEF
2 stops41h 41mBritish Airways
mar. 12/1611:45 amKEF - STL
2 stops40h 02mBritish Airways
Deal found 3/27$656
This Air Canada deal was found by Cheapflights users on 3/27. 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.
lun. 9/14:05 pmSTL - KEF
2 stops35h 30mAir Canada
jue. 9/1110:00 amKEF - STL
2 stops14h 57mAir Canada
Deal found 3/27$736
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/159:20 amSTL - KEF
3 stops38h 35mMultiple Airlines
dom. 10/193:05 pmKEF - STL
2 stops21h 44mMultiple Airlines
Deal found 3/27$753
This Lufthansa deal was found by Cheapflights users on 3/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/173:30 pmSTL - KEF
1 stop16h 35mLufthansa
mar. 10/214:10 pmKEF - STL
2 stops26h 20mLufthansa
Deal found 3/27$811
This Delta deal was found by Cheapflights users on 3/26. 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.
dom. 9/1410:45 amSTL - KEF
1 stop14h 35mDelta
dom. 9/288:50 amKEF - STL
1 stop12h 57mDelta
Deal found 3/26$849
This KLM deal was found by Cheapflights users on 3/27. 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.
lun. 5/122:15 pmSTL - KEF
1 stop11h 05mKLM
mar. 5/208:50 amKEF - STL
1 stop12h 57mKLM
Deal found 3/27$873
This United Airlines deal was found by Cheapflights users on 3/27. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/255:00 amSTL - KEF
1 stop22h 30mUnited Airlines
lun. 6/29:50 amKEF - STL
1 stop31h 46mUnited Airlines
Deal found 3/27$926
This Gurufare deal was found by Cheapflights users on 3/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/1812:51 pmSTL - KEF
2 stops29h 59mScandinavian Airlines
vie. 4/253:50 pmKEF - STL
2 stops36h 46mScandinavian Airlines
Deal found 3/28$940
This Air France deal was found by Cheapflights users on 3/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/262:15 pmSTL - KEF
1 stop11h 05mAir France
dom. 6/19:30 amKEF - STL
1 stop18h 56mAir France
Deal found 3/27$1,011
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
jue. 11/137:00 amSTL - KEF
1 stop17h 15mAlaska Airlines
mar. 11/185:05 pmKEF - STL
1 stop26h 47mAlaska Airlines
Deal found 3/27$1,257

Cheapflights Fare Finder

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 marzo 28, 2025.
Use the filters below to find and compare flights from St. Louis to Iceland that are best for you.

Fly from

St. Louis

Fly to

Iceland

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

lun. 9/1

4:05 pm-8:35 am

2 stops35h 30m

Reykjavik Keflavik Intl

jue. 9/11

10:00 am-7:57 pm

2 stops14h 57m

$736

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

jue. 4/10

6:10 pm-4:45 am

2 stops29h 35m

Reykjavik Keflavik Intl

lun. 4/14

3:45 pm-6:41 pm

3 stops31h 56m

$807

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

dom. 9/14

10:45 am-6:20 am

1 stop14h 35m

Reykjavik Keflavik Intl

dom. 9/28

8:50 am-4:47 pm

1 stop12h 57m

$849

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

lun. 5/12

2:15 pm-6:20 am

1 stop11h 05m

Reykjavik Keflavik Intl

mar. 5/20

8:50 am-4:47 pm

1 stop12h 57m

$873

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

dom. 8/24

5:30 pm-11:35 pm

2 stops25h 05m

Reykjavik Keflavik Intl

dom. 8/31

12:25 am-3:44 pm

2 stops20h 19m

$895

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

dom. 5/25

5:00 am-8:30 am

1 stop22h 30m

Reykjavik Keflavik Intl

lun. 6/2

9:50 am-12:36 pm

1 stop31h 46m

$926

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

vie. 4/18

12:51 pm-11:50 pm

2 stops29h 59m

Reykjavik Keflavik Intl

vie. 4/25

3:50 pm-11:36 pm

2 stops36h 46m

$940

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

lun. 5/26

2:15 pm-6:20 am

1 stop11h 05m

Reykjavik Keflavik Intl

dom. 6/1

9:30 am-11:26 pm

1 stop18h 56m

$1,011

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

vie. 4/18

3:11 pm-9:25 am

1 stop13h 14m

Reykjavik Keflavik Intl

vie. 4/25

7:45 pm-11:59 pm

1 stop33h 14m

$1,276

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

sáb. 5/24

1:38 pm-9:45 am

2 stops39h 07m

Reykjavik Keflavik Intl

vie. 5/30

10:30 am-9:52 pm

2 stops40h 22m

$1,461

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 14 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Iceland

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.

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 marzo 28, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and KLM from St. Louis to Iceland to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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
KLM
7.8
Good
1,321 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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
Austrian Airlines
7.5
Good
769 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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
Air France
7.4
Good
1,424 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.2

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 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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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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$566Average$748FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$626Average$1,090FlexibilityNo cancel feeOn-time69%
DeltaCheapest$666Average$956FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$856Average$1,142FlexibilityNo cancel feeOn-time75%
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