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St. Louis

$616+ Cheap flights from Iceland to St. Louis (STL)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — STL
Sep 13 — Sep 201
Sun 9/13
Sun 9/20
1 adult, Economy
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Cheap flight deals from Iceland to St. Louis

One-way flights from Iceland to St. Louis
Search for one-way flight options from Iceland to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/235:00 pm -
3 stops21h 35m
Deal found 8/13$616
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 9/267:50 pm -
3 stops46h 20m
Deal found 8/12$661
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 8/3012:45 pm -
1 stop30h 21m
Deal found 8/10$741

Cheapflights Fare Finder

 
Customize your flight search to find flights from Iceland to St. Louis 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 August 14, 2026.
Use the filters below to find and compare flights from Iceland to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Wed 9/23

7:45 pm-1:10 pm

2 stops46h 25m

$635
Quickest one-way

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Sat 9/26

4:45 pm-4:34 pm

1 stop28h 49m

$754

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Sun 8/30

12:45 pm-5:10 pm

2 stops33h 25m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Sorted by cheapest first

Best time to book a flight from Iceland to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Iceland 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 Iceland to St. Louis

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

Related info for your journey

Find useful and relevant information for your journey from Iceland to St. Louis. 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 into for flights to St. Louis from Iceland?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Iceland to St. Louis.

  • Can I find deals for flights from Iceland to St. Louis that include hotel bookings?

    Yes. In addition to deals on Iceland to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Iceland to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Iceland to St. Louis.

  • Can I find deals for business class flights from Iceland to St. Louis?

    Yes. Cheapflights offers flight deals from Iceland to St. Louis 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington

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