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Iceland

$509+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 21, 2026.

This KLM deal was found by Cheapflights users on 1/19. 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.
Wed 5/611:43 am
STL
-
KEF
2 stops16h 47m
Multiple Airlines
Tue 5/1211:25 am
KEF
-
STL
2 stops14h 06m
Multiple Airlines
Deal found 1/19$509
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Wed 2/187:00 am
STL
-
KEF
1 stop17h 15m
Multiple Airlines
Wed 2/255:00 pm
KEF
-
STL
1 stop26h 51m
Multiple Airlines
Deal found 1/19$702
This KAYAK deal was found by Cheapflights users on 1/19. 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.
Fri 4/33:30 pm
STL
-
KEF
1 stop26h 55m
Lufthansa
Sat 4/112:45 pm
KEF
-
STL
2 stops27h 40m
Lufthansa
Deal found 1/19$709
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
Wed 4/17:00 am
STL
-
KEF
1 stop18h 15m
Multiple Airlines
Wed 4/87:45 pm
KEF
-
STL
1 stop24h 35m
Multiple Airlines
Deal found 1/18$733
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 9/226:30 am
STL
-
KEF
2 stops20h 25m
United Airlines
Tue 9/2910:00 am
KEF
-
STL
2 stops42h 43m
United Airlines
Deal found 1/20$747
This Orbitz deal was found by Cheapflights users on 1/19. 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.
Tue 9/151:30 pm
STL
-
KEF
1 stop13h 25m
Multiple Airlines
Mon 9/2812:20 am
KEF
-
STL
1 stop18h 05m
Multiple Airlines
Deal found 1/19$759
This Air Canada deal was found by Cheapflights users on 1/19. 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.
Fri 9/412:10 pm
STL
-
KEF
1 stop14h 45m
Air Canada
Fri 9/119:15 am
KEF
-
STL
2 stops32h 05m
Air Canada
Deal found 1/19$762
This Air Canada deal was found by Cheapflights users on 1/19. 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.
Mon 9/72:40 pm
STL
-
KEF
1 stop13h 05m
Air Canada
Mon 9/1410:00 am
KEF
-
STL
2 stops35h 26m
Air Canada
Deal found 1/19$773

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$702
(Kiwi.com)

One-way from

$601
(Ovago)

Popular in

March

Cheapest in

February

Average price

$701
Provider with most accurate pricing for Lambert-St Louis-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Reykjavik (REK) flights.
Search Deals
From Lambert-St Louis to Iceland
Search Deals
One-way flight from Lambert-St Louis to Iceland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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

Wed 2/18

7:00 am-6:15 am

1 stop17h 15m

Reykjavik Keflavik Intl

Wed 2/25

5:00 pm-1:51 pm

1 stop26h 51m

$702

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 4/3

3:30 pm-11:25 pm

1 stop26h 55m

Reykjavik Keflavik Intl

Sat 4/11

2:45 pm-1:25 pm

2 stops27h 40m

$709

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/1

1:39 pm-9:30 am

2 stops14h 51m

Reykjavik Keflavik Intl

Wed 4/8

11:25 am-11:25 pm

2 stops17h 00m

$873

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 6/15

6:30 am-8:15 am

2 stops20h 45m

$601

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 6/15

6:00 am-8:15 am

3 stops21h 15m

$639

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 6/15

5:00 pm-9:30 am

1 stop11h 30m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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
No data available for this route at this time. Please check back soon.

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 21, 2026.
See what other customers who have flown with Delta, KLM, and United Airlines from St. Louis to Iceland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,086 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,086 reviews
Delta
7.9
Good
8,086 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,442 reviews
Delta
7.9
Good
8,086 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,190 reviews
Delta
7.9
Good
8,086 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,644 reviews
Delta
7.9
Good
8,086 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from St. Louis to Iceland?

    For as low as $709, Lufthansa can have you in Iceland from St. Louis in 26h 55m. The distance from St. Louis to Iceland is about 3191 mi.

  • 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.

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 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$566Average$763FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$595Average$1,090FlexibilityNo cancel feeOn-time69%
DeltaCheapest$636Average$997FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$828Average$1,147FlexibilityNo cancel feeOn-time75%

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