$704+ Cheap flights from Iceland to St. Louis (STL)
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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — STL
Nov 1 — Nov 81
Round-trip
1 adult, Economy
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Find cheap flights from Iceland to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Iceland to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Iceland to St. LouisExplore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2026.
Explore the most affordable flight options available from Iceland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2026.
This Icelandair deal was found by Cheapflights users on 9/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:55 pm -
1 stop19h 50m
Sun 10/181:00 pm -
1 stop12h 25m
Deal found 9/28![Multiple Airlines logo]()
$1,006
This Icelandair deal was found by Cheapflights users on 9/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:45 pm -
1 stop21h 35m
Tue 10/2010:20 am -
1 stop15h 20m
Deal found 9/30![Multiple Airlines logo]()
$1,050
This Finnair deal was found by Cheapflights users on 9/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
2 stops32h 42m
Sun 10/189:40 pm -
2 stops37h 50m
Deal found 9/28![Finnair logo]()
$1,180
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 am -
2 stops34h 02m
Sun 10/183:11 pm -
1 stop12h 39m
Deal found 9/28![United Airlines logo]()
$1,207
This Air Canada deal was found by Cheapflights users on 9/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 am -
2 stops33h 45m
Sun 10/1811:35 am -
3 stops16h 10m
Deal found 9/28![Air Canada logo]()
$1,239
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:10 am -
2 stops47h 11m
Tue 10/208:30 am -
2 stops33h 55m
Deal found 9/30![Lufthansa logo]()
$1,330
This Orbitz deal was found by Cheapflights users on 10/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:35 am -
2 stops17h 22m
Fri 10/93:30 pm -
1 stop16h 25m
Deal found 10/1![Multiple Airlines logo]()
$1,670
Best flights from Iceland to St. LouisDiscover carefully curated flight deals from Iceland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
Discover carefully curated flight deals from Iceland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
This Icelandair deal was found by Cheapflights users on 9/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:55 pm -
1 stop19h 50m
Sun 10/181:00 pm -
1 stop12h 25m
Deal found 9/28![Multiple Airlines logo]()
$1,006
This Finnair deal was found by Cheapflights users on 9/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
2 stops32h 42m
Sun 10/189:40 pm -
2 stops37h 50m
Deal found 9/28![Finnair logo]()
$1,180
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 am -
2 stops34h 02m
Sun 10/183:11 pm -
1 stop12h 39m
Deal found 9/28![United Airlines logo]()
$1,207
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:10 am -
2 stops47h 11m
Tue 10/208:30 am -
2 stops33h 55m
Deal found 9/30![Lufthansa logo]()
$1,330
This Icelandair deal was found by Cheapflights users on 9/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:45 pm -
1 stop21h 35m
Tue 10/2010:20 am -
1 stop15h 20m
Deal found 9/30![Multiple Airlines logo]()
$1,050
Last-minute flights from Iceland to St. LouisDiscover last-minute flight deals from Iceland to St. Louis. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from Iceland to St. Louis. Data last updated October 2, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 10/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:35 am -
2 stops17h 22m
Fri 10/93:30 pm -
1 stop16h 25m
Deal found 10/1![Multiple Airlines logo]()
$1,670
This Icelandair deal was found by Cheapflights users on 9/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:55 pm -
1 stop19h 50m
Sun 10/181:00 pm -
1 stop12h 25m
Deal found 9/28![Multiple Airlines logo]()
$1,006
This Finnair deal was found by Cheapflights users on 9/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
2 stops32h 42m
Sun 10/189:40 pm -
2 stops37h 50m
Deal found 9/28![Finnair logo]()
$1,180
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 am -
2 stops34h 02m
Sun 10/183:11 pm -
1 stop12h 39m
Deal found 9/28![United Airlines logo]()
$1,207
This Air Canada deal was found by Cheapflights users on 9/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 am -
2 stops33h 45m
Sun 10/1811:35 am -
3 stops16h 10m
Deal found 9/28![Air Canada logo]()
$1,239
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:10 am -
2 stops47h 11m
Tue 10/208:30 am -
2 stops33h 55m
Deal found 9/30![Lufthansa logo]()
$1,330
This Icelandair deal was found by Cheapflights users on 9/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:45 pm -
1 stop21h 35m
Tue 10/2010:20 am -
1 stop15h 20m
Deal found 9/30![Multiple Airlines logo]()
$1,050
One-way flights from Iceland to St. LouisSearch for one-way flight options from Iceland to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
Search for one-way flight options from Iceland to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This Icelandair deal was found by Cheapflights users on 9/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:50 pm -
1 stop16h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$704
This KAYAK deal was found by Cheapflights users on 9/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:00 am -
1 stop15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Lufthansa logo]()
$2,532
Find flight deals from Iceland to St. Louis
Keep the following information in mind while searching for Iceland to St. Louis flight deals. Data was last updated October 2, 2026.
Round-trip from | $1,006 (Icelandair) |
|---|---|
One-way from | $704 (Icelandair) |
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 7,457,451 searches. Data last updated October 2, 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
Cheapest round-trip
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Thu 10/8
7:50 pm-7:45 am
1 stop16h 55m
Lambert-St Louis
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$704
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Wed 10/14
4:55 pm-7:45 am
1 stop19h 50m
Lambert-St Louis
Sun 10/18
1:00 pm-6:25 am
1 stop12h 25m
$1,006
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Fri 10/16
4:45 pm-9:20 am
1 stop21h 35m
Lambert-St Louis
Tue 10/20
10:20 am-6:40 am
1 stop15h 20m
$1,050
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Wed 10/14
5:15 pm-8:57 pm
2 stops32h 42m
Lambert-St Louis
Sun 10/18
9:40 pm-4:30 pm
2 stops37h 50m
$1,180
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Wed 10/14
9:15 am-2:17 pm
2 stops34h 02m
Lambert-St Louis
Sun 10/18
3:11 pm-8:50 am
1 stop12h 39m
$1,207
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Thu 10/15
1:10 am-7:21 pm
2 stops47h 11m
Lambert-St Louis
Tue 10/20
8:30 am-11:25 pm
2 stops33h 55m
$1,330
Quickest round-trip
ReykjavikSt. Louis
KEF Reykjavik Keflavik Intl - STL Lambert-St Louis
KEFSTL
Reykjavik Keflavik Intl
Thu 10/8
10:00 am-8:20 pm
1 stop15h 20m
Lambert-St Louis
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$2,532
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.
KEF-STL
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
IS0-STL
KEF-STL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
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Eureka
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Chesterfield
Maryland Heights
Collinsville
Edwardsville
Glencoe
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