$732+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Nov 1 — Nov 81
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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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 October 2, 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 October 2, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:50 pm -
1 stop10h 10m
Thu 11/512:00 pm -
1 stop17h 24m
Deal found 9/30![United Airlines logo]()
$732
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 11/117:24 am -
2 stops27h 51m
Mon 11/1610:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$753
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:40 pm -
1 stop16h 45m
Tue 11/173:20 pm -
1 stop28h 25m
Deal found 9/28![Lufthansa logo]()
$785
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/137:59 pm -
1 stop28h 06m
Fri 11/204:55 pm -
1 stop24h 08m
Deal found 9/29![Multiple Airlines logo]()
$798
This American Airlines deal was found by Cheapflights users on 9/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:35 am -
2 stops21h 30m
Fri 11/2011:45 am -
2 stops16h 29m
Deal found 9/29![American Airlines logo]()
$799
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 10/286:32 am -
2 stops29h 43m
Wed 11/410:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$803
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:26 pm -
2 stops32h 04m
Sun 11/225:00 pm -
2 stops30h 40m
Deal found 10/1![Multiple Airlines logo]()
$806
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:40 pm -
1 stop16h 45m
Tue 11/173:20 pm -
1 stop28h 25m
Deal found 9/28![Multiple Airlines logo]()
$815
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.
Fri 11/1310:21 am -
2 stops24h 54m
Mon 11/1610:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$816
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:55 pm -
2 stops35h 05m
Thu 11/512:00 pm -
1 stop13h 23m
Deal found 9/30![United Airlines logo]()
$825
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 October 2, 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 October 2, 2026.
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 11/117:24 am -
2 stops27h 51m
Mon 11/1610:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$753
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 11/256:15 am -
2 stops21h 45m
Mon 11/3012:00 pm -
2 stops51h 45m
Deal found 9/28![United Airlines logo]()
$929
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:14 am -
2 stops20h 36m
Mon 11/3010:00 am -
2 stops43h 35m
Deal found 10/1![British Airways logo]()
$933
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.
Wed 3/31:55 pm -
1 stop10h 35m
Sun 3/75:00 pm -
1 stop12h 55m
Deal found 9/30![Multiple Airlines logo]()
$869
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:25 am -
1 stop16h 10m
Sun 11/224:45 pm -
1 stop22h 35m
Deal found 10/1![Multiple Airlines logo]()
$893
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.
Mon 11/308:15 am -
1 stop15h 55m
Fri 12/44:45 pm -
1 stop23h 05m
Deal found 9/30![Multiple Airlines logo]()
$917
Last-minute flights from St. Louis to IcelandDiscover last-minute flight deals from St. Louis to Iceland. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Iceland. Data last updated October 2, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:50 pm -
1 stop10h 10m
Thu 11/512:00 pm -
1 stop17h 24m
Deal found 9/30![United Airlines logo]()
$732
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 10/286:32 am -
2 stops29h 43m
Wed 11/410:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$803
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:55 pm -
2 stops35h 05m
Thu 11/512:00 pm -
1 stop13h 23m
Deal found 9/30![United Airlines logo]()
$825
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 11/117:24 am -
2 stops27h 51m
Mon 11/1610:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$753
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:40 pm -
1 stop16h 45m
Tue 11/173:20 pm -
1 stop28h 25m
Deal found 9/28![Lufthansa logo]()
$785
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:40 pm -
1 stop16h 45m
Tue 11/173:20 pm -
1 stop28h 25m
Deal found 9/28![Multiple Airlines logo]()
$815
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/137:59 pm -
1 stop28h 06m
Fri 11/204:55 pm -
1 stop24h 08m
Deal found 9/29![Multiple Airlines logo]()
$798
This American Airlines deal was found by Cheapflights users on 9/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:35 am -
2 stops21h 30m
Fri 11/2011:45 am -
2 stops16h 29m
Deal found 9/29![American Airlines logo]()
$799
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.
Fri 11/1310:21 am -
2 stops24h 54m
Mon 11/1610:00 am -
2 stops41h 59m
Deal found 9/28![Multiple Airlines logo]()
$816
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:26 pm -
2 stops32h 04m
Sun 11/225:00 pm -
2 stops30h 40m
Deal found 10/1![Multiple Airlines logo]()
$806
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 October 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $732 (United Airlines) |
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 7,457,451 searches. Data last updated October 2, 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
Wed 11/11
7:24 am-5:15 pm
2 stops27h 51m
Reykjavik Keflavik Intl
Mon 11/16
10:00 am-9:59 pm
2 stops41h 59m
$753
Quickest round-trip
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Wed 3/3
1:55 pm-6:30 am
1 stop10h 35m
Reykjavik Keflavik Intl
Sun 3/7
5:00 pm-11:55 pm
1 stop12h 55m
$869
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Sun 11/15
8:25 am-6:35 am
1 stop16h 10m
Reykjavik Keflavik Intl
Sun 11/22
4:45 pm-9:20 am
1 stop22h 35m
$893
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Mon 11/30
8:15 am-6:10 am
1 stop15h 55m
Reykjavik Keflavik Intl
Fri 12/4
4:45 pm-9:50 am
1 stop23h 05m
$917
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Wed 11/25
6:15 am-10:00 am
2 stops21h 45m
Reykjavik Keflavik Intl
Mon 11/30
12:00 pm-9:45 am
2 stops51h 45m
$929
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Wed 11/25
11:14 am-1:50 pm
2 stops20h 36m
Reykjavik Keflavik Intl
Mon 11/30
10:00 am-11:35 pm
2 stops43h 35m
$933
Sorted 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 October 2, 2026.
See what other customers who have flown with Delta 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.
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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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Alternative routes for St. Louis to Iceland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Iceland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Iceland by cabin class
Find flights from St. Louis to Iceland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Iceland flights
Browse other St. Louis and Iceland flight options. Last updated on October 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from St. Louis to Iceland
Discover the top 2 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 7,457,451 searches. Data last updated October 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$783 | Average$1,131 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$784 | Average$1,175 | FlexibilityNo cancel fee | On-timeN/A |