Iceland

$343+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Jun 4 — Jun 111
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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 May 5, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 5/1. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:52 pm
STL
-
KEF
2 stops13h 48m
Virgin Atlantic
Fri 9/411:25 am
KEF
-
STL
2 stops17h 12m
Virgin Atlantic
Deal found 5/1$860
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 7/208:08 pm
STL
-
KEF
1 stop28h 52m
Multiple Airlines
Wed 7/2910:45 am
KEF
-
STL
1 stop13h 38m
Multiple Airlines
Deal found 5/1$891
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 8/155:32 pm
STL
-
KEF
2 stops34h 13m
United Airlines
Wed 8/2610:00 am
KEF
-
STL
2 stops34h 38m
United Airlines
Deal found 5/1$913
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Wed 8/1912:10 pm
STL
-
KEF
1 stop14h 45m
United Airlines
Fri 8/289:15 am
KEF
-
STL
2 stops35h 23m
United Airlines
Deal found 5/2$933
This United Airlines deal was found by Cheapflights users on 4/30. 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 9/11:18 pm
STL
-
KEF
1 stop14h 32m
United Airlines
Wed 9/309:15 am
KEF
-
STL
2 stops34h 03m
United Airlines
Deal found 4/30$934
This FlightHub deal was found by Cheapflights users on 5/2. 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.
Wed 8/1912:10 pm
STL
-
KEF
1 stop14h 45m
Air Canada
Fri 8/289:15 am
KEF
-
STL
1 stop14h 27m
Air Canada
Deal found 5/2$946
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 8/2312:10 pm
STL
-
KEF
1 stop14h 45m
United Airlines
Fri 9/49:15 am
KEF
-
STL
1 stop14h 27m
United Airlines
Deal found 5/1$947
This deal was found by Cheapflights users on 4/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:30 pm
STL
-
KEF
1 stop13h 30m
United Airlines
Wed 9/912:00 pm
KEF
-
STL
1 stop11h 16m
United Airlines
Deal found 4/30$954

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 May 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$860
(KLM)

One-way from

$343
(Kiwi.com)
Provider with most accurate pricing for Lambert-St Louis-Reykjavik (REK) flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Reykjavik (REK) flights.
From Lambert-St Louis to Iceland
One-way flight from Lambert-St Louis to Iceland

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 May 5, 2026.
Use the filters below to find and compare flights from St. Louis to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 8/23

12:52 pm-7:40 am

2 stops13h 48m

Reykjavik Keflavik Intl

Fri 9/4

11:25 am-11:37 pm

2 stops17h 12m

$860

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 8/23

12:10 pm-7:00 am

1 stop13h 50m

Reykjavik Keflavik Intl

Fri 9/4

11:25 am-11:37 pm

2 stops17h 12m

$860

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

5:32 pm-8:45 am

2 stops34h 13m

Reykjavik Keflavik Intl

Wed 8/26

10:00 am-8:07 pm

1 stop15h 07m

$926

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

5:32 pm-8:45 am

2 stops34h 13m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-2:18 pm

2 stops34h 03m

$938

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 9/21

3:10 pm-8:50 am

1 stop12h 40m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-12:20 pm

2 stops32h 05m

$964

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 9/20

5:32 pm-8:50 am

1 stop10h 18m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-12:20 pm

2 stops32h 05m

$964

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 9/2

5:00 am-7:55 am

2 stops21h 55m

Reykjavik Keflavik Intl

Tue 9/8

10:00 am-12:13 pm

2 stops31h 13m

$973

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 7/4

7:05 pm-7:55 am

2 stops31h 50m

Reykjavik Keflavik Intl

Thu 7/16

10:00 am-12:11 pm

2 stops31h 11m

$983

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 9/4

6:00 am-7:00 am

2 stops20h 00m

Reykjavik Keflavik Intl

Fri 9/11

9:15 am-11:06 am

2 stops30h 51m

$989
Cheapest one-way

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 6/13

7:38 pm-7:40 am

3 stops31h 02m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Showing 1-10 of 17 resultsSorted by cheapest first
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
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 May 5, 2026.
See what other customers who have flown with Delta,KLM, andUnited 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.

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

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 $860, Virgin Atlantic can have you in Iceland from St. Louis in 13h 48m. The distance from St. Louis to Iceland is about 3191 mi. This flight may include one or multiple stops.

  • 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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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 May 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$595Average$1,074FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$604Average$870FlexibilityNo cancel feeOn-time67%
DeltaCheapest$636Average$997FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$756Average$1,080FlexibilityNo cancel feeOn-time75%

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