$367+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Sep 12 — Sep 191
Round-trip
1 adult, Economy
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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
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Best
Last-minute
One-way
Cheapest flights from St. Louis to IcelandExplore 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 August 13, 2026.
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 August 13, 2026.
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:50 pm -
1 stop9h 10m
Thu 11/1912:00 pm -
1 stop13h 23m
Deal found 8/10![United Airlines logo]()
$732
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:40 pm -
1 stop13h 05m
Wed 10/79:15 am -
1 stop14h 26m
Deal found 8/12![Air Canada logo]()
$756
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:08 pm -
1 stop14h 52m
Sat 11/2812:00 pm -
1 stop10h 49m
Deal found 8/10![United Airlines logo]()
$782
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
1 stop19h 00m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/12![United Airlines logo]()
$785
This Justfly.com deal was found by Cheapflights users on 8/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:53 pm -
2 stops32h 02m
Wed 9/309:15 am -
2 stops41h 06m
Deal found 8/11![Air Canada logo]()
$788
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
2 stops20h 50m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/12![United Airlines logo]()
$789
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:10 pm -
1 stop27h 55m
Thu 11/124:55 pm -
1 stop32h 20m
Deal found 8/10![Multiple Airlines logo]()
$801
Best flights from St. Louis to IcelandDiscover carefully curated flight deals from St. Louis to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
Discover carefully curated flight deals from St. Louis to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:28 pm -
1 stop13h 32m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/13![United Airlines logo]()
$785
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:55 pm -
1 stop10h 30m
Sat 9/267:50 pm -
1 stop18h 30m
Deal found 8/10![Multiple Airlines logo]()
$882
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:47 am -
2 stops21h 43m
Sat 10/1711:25 am -
2 stops27h 19m
Deal found 8/13![Delta logo]()
$928
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:30 pm -
1 stop10h 20m
Wed 9/309:15 am -
1 stop14h 26m
Deal found 8/12![United Airlines logo]()
$798
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:15 am -
1 stop15h 00m
Wed 9/305:00 pm -
1 stop19h 45m
Deal found 8/13![Multiple Airlines logo]()
$915
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 10/98:00 am -
1 stop19h 50m
Sat 10/1710:00 am -
2 stops34h 43m
Deal found 8/11![United Airlines logo]()
$902
Last-minute flights from St. Louis to IcelandDiscover last-minute flight deals from St. Louis to Iceland. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Iceland. Data last updated August 13, 2026 and is based on user searches.
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:40 pm -
1 stop10h 55m
Wed 8/265:00 pm -
1 stop19h 45m
Deal found 8/13![Multiple Airlines logo]()
$857
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:15 pm -
1 stop9h 10m
Thu 9/174:45 pm -
1 stop21h 35m
Deal found 8/13![Multiple Airlines logo]()
$865
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:40 pm -
1 stop13h 05m
Wed 10/79:15 am -
1 stop14h 26m
Deal found 8/12![Air Canada logo]()
$756
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
1 stop19h 00m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/12![United Airlines logo]()
$785
This Justfly.com deal was found by Cheapflights users on 8/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:53 pm -
2 stops32h 02m
Wed 9/309:15 am -
2 stops41h 06m
Deal found 8/11![Air Canada logo]()
$788
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:21 am -
1 stop14h 39m
Tue 9/299:30 am -
1 stop10h 42m
Deal found 8/10![KLM logo]()
$805
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:29 am -
2 stops18h 01m
Tue 9/2911:25 am -
2 stops17h 17m
Deal found 8/10![Delta logo]()
$810
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
2 stops20h 50m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/12![United Airlines logo]()
$789
One-way flights from St. Louis to IcelandSearch for one-way flight options from St. Louis to Iceland. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
Search for one-way flight options from St. Louis to Iceland. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
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.
Fri 9/118:10 pm -
3 stops54h 30m
Deal found 8/12![Multiple Airlines logo]()
$367
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 9/26:45 pm -
3 stops31h 55m
Deal found 8/13![Multiple Airlines logo]()
$375
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.
Fri 9/115:47 pm -
2 stops56h 53m
Deal found 8/12![WestJet logo]()
$426
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 9/210:33 am -
2 stops40h 07m
Deal found 8/13![WestJet logo]()
$432
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:21 am -
1 stop14h 39m
Deal found 8/13![KLM logo]()
$465
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:30 am -
3 stops20h 15m
Deal found 8/13![United Airlines logo]()
$473
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:55 am -
1 stop18h 50m
Deal found 8/12![Air Canada logo]()
$504
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:10 pm -
1 stop14h 45m
Deal found 8/13![United Airlines logo]()
$629
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 August 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $732 |
One-way from | $367 (Kiwi.com) |
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 August 13, 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
Cheapest round-trip
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Mon 9/21
12:28 pm-7:00 am
1 stop13h 32m
Reykjavik Keflavik Intl
Wed 9/30
9:15 am-3:43 pm
2 stops35h 28m
$785
Quickest round-trip
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Wed 9/23
5:30 pm-8:50 am
1 stop10h 20m
Reykjavik Keflavik Intl
Wed 9/30
9:15 am-6:41 pm
1 stop14h 26m
$798
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Sat 9/19
2:55 pm-6:25 am
1 stop10h 30m
Reykjavik Keflavik Intl
Sat 9/26
7:50 pm-9:20 am
1 stop18h 30m
$882
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Fri 10/9
8:00 am-8:50 am
1 stop19h 50m
Reykjavik Keflavik Intl
Sat 10/17
10:00 am-3:43 pm
2 stops34h 43m
$902
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Sun 9/20
10:15 am-6:15 am
1 stop15h 00m
Reykjavik Keflavik Intl
Wed 9/30
5:00 pm-7:45 am
1 stop19h 45m
$915
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Fri 10/9
6:47 am-9:30 am
2 stops21h 43m
Reykjavik Keflavik Intl
Sat 10/17
11:25 am-9:44 am
2 stops27h 19m
$928
Cheapest one-way
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Wed 9/2
6:45 pm-7:40 am
3 stops31h 55m
$375
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Fri 9/11
5:47 pm-7:40 am
2 stops56h 53m
$426
Quickest one-way
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Sun 9/27
11:21 am-7:00 am
1 stop14h 39m
$465
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Sun 9/27
7:30 am-8:45 am
3 stops20h 15m
$473
Showing 1-10 of 11 resultsSorted by cheapest first
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.
STL-KEF
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
STL-IS0
STL-KEF
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 August 13, 2026.
See what other customers who have flown with Delta,United Airlines, andAir Canada 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.
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
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Complete your trip
Complete your trip to Iceland by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Iceland flights
Browse other St. Louis and Iceland flight options. Last updated on August 13, 2026.
Popular flight searches
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Top 3 airlines flying from St. Louis to Iceland
Discover the top 3 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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$604 | Average$870 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$783 | Average$1,131 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$784 | Average$1,080 | FlexibilityNo cancel fee | On-timeN/A |