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Iceland

$391+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$707
(KLM)

One-way from

$391
(Mytrip)
From Lambert-St Louis to Iceland
Search Deals
One-way flight 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 April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:10 amSTL - KEF
1 stop19h 20mUnited Airlines
Thu 9/410:00 amKEF - STL
2 stops29h 40mUnited Airlines
Deal found 4/16$666
This KLM deal was found by Cheapflights users on 4/16. 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 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 stop12h 57mKLM
Deal found 4/16$707
This KLM deal was found by Cheapflights users on 4/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:40 pmSTL - KEF
2 stops12h 50mMultiple Airlines
Tue 5/208:50 amKEF - STL
1 stop12h 57mMultiple Airlines
Deal found 4/16$712
This Orbitz deal was found by Cheapflights users on 4/17. 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.
Sat 8/91:30 pmSTL - KEF
2 stops37h 45mAir Canada
Sun 8/179:30 amKEF - STL
1 stop15h 30mAir Canada
Deal found 4/17$734
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:45 amSTL - KEF
1 stop14h 35mDelta
Sun 9/288:50 amKEF - STL
1 stop9h 30mDelta
Deal found 4/16$765
This Gurufare deal was found by Cheapflights users on 4/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:27 pmSTL - KEF
2 stops34h 13mBritish Airways
Mon 10/2010:45 amKEF - STL
2 stops36h 18mBritish Airways
Deal found 4/16$829
This KAYAK deal was found by Cheapflights users on 4/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:28 pmSTL - KEF
2 stops30h 42mLufthansa
Sun 10/1912:25 amKEF - STL
2 stops44h 13mLufthansa
Deal found 4/16$835
This StudentUniverse deal was found by Cheapflights users on 4/16. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/286:00 pmSTL - KEF
2 stops17h 30mFinnair
Tue 5/65:15 pmKEF - STL
2 stops33h 37mFinnair
Deal found 4/16$1,163
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
Wed 10/157:00 amSTL - KEF
1 stop21h 25mAlaska Airlines
Mon 10/207:45 pmKEF - STL
1 stop33h 11mAlaska Airlines
Deal found 4/15$1,205

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 April 17, 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

Mon 5/12

10:45 am-6:20 am

1 stop14h 35m

Reykjavik Keflavik Intl

Tue 5/20

8:50 am-4:47 pm

1 stop12h 57m

$707

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

3:40 pm-9:30 am

2 stops12h 50m

Reykjavik Keflavik Intl

Tue 5/20

8:50 am-4:47 pm

1 stop12h 57m

$712

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/8

6:00 am-8:10 am

2 stops21h 10m

Reykjavik Keflavik Intl

Mon 7/14

9:50 am-8:36 pm

2 stops39h 46m

$838

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/3

1:30 pm-8:15 am

2 stops37h 45m

Reykjavik Keflavik Intl

Mon 7/14

9:50 am-8:00 pm

2 stops15h 10m

$913

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 6/20

2:15 pm-7:00 am

2 stops11h 45m

Reykjavik Keflavik Intl

Sun 6/29

11:25 am-9:23 pm

2 stops14h 58m

$1,039

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 4/28

6:00 pm-4:30 pm

2 stops17h 30m

Reykjavik Keflavik Intl

Tue 5/6

5:15 pm-9:52 pm

2 stops33h 37m

$1,163

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 7/11

5:30 pm-11:35 pm

2 stops25h 05m

Reykjavik Keflavik Intl

Mon 7/14

12:25 am-3:47 pm

2 stops20h 22m

$1,195

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/3

3:42 pm-11:50 pm

2 stops27h 08m

Reykjavik Keflavik Intl

Sun 7/13

1:00 am-8:47 pm

3 stops24h 47m

$1,856

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 4/27

6:10 pm-4:50 am

2 stops29h 40m

$391

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 4/27

3:30 pm-11:35 pm

1 stop27h 05m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

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 April 17, 2025.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,335 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

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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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$566Average$739FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$626Average$1,104FlexibilityNo cancel feeOn-time69%
DeltaCheapest$655Average$961FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$856Average$1,182FlexibilityNo cancel feeOn-time75%

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