$285+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Jul 29 — Aug 51
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Iceland with Cheapflights
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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
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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 June 29, 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 June 29, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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.
Thu 10/110:29 am
STL
- KEF
2 stops18h 01m
Virgin Atlantic
Thu 10/811:25 am
KEF
- STL
2 stops14h 24m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$285
This United Airlines deal was found by Cheapflights users on 6/24. 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 10/255:34 pm
STL
- KEF
1 stop11h 26m
United Airlines
Thu 11/512:00 pm
KEF
- STL
1 stop15h 13m
United Airlines
Deal found 6/24![United Airlines logo]()
$731
This United Airlines deal was found by Cheapflights users on 6/24. 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 10/244:50 pm
STL
- KEF
2 stops36h 10m
United Airlines
Thu 11/512:00 pm
KEF
- STL
1 stop15h 13m
United Airlines
Deal found 6/24![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 6/28. 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 10/73:11 pm
STL
- KEF
1 stop12h 39m
United Airlines
Wed 10/149:15 am
KEF
- STL
2 stops35h 28m
United Airlines
Deal found 6/28![United Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 6/27. 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 10/57:01 pm
STL
- KEF
2 stops31h 54m
United Airlines
Tue 10/1310:00 am
KEF
- STL
2 stops34h 21m
United Airlines
Deal found 6/27![United Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 6/24. 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 10/253:15 pm
STL
- KEF
1 stop13h 45m
United Airlines
Mon 11/912:00 pm
KEF
- STL
1 stop17h 09m
United Airlines
Deal found 6/24![United Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 6/25. 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
STL
- KEF
1 stop19h 00m
United Airlines
Wed 9/309:15 am
KEF
- STL
2 stops35h 28m
United Airlines
Deal found 6/25![United Airlines logo]()
$784
This United Airlines deal was found by Cheapflights users on 6/24. 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 10/258:58 am
STL
- KEF
2 stops20h 02m
United Airlines
Sat 11/712:00 pm
KEF
- STL
2 stops28h 05m
United Airlines
Deal found 6/24![United Airlines logo]()
$786
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 June 29, 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 June 29, 2026.
This United Airlines deal was found by Cheapflights users on 6/26. 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 9/2110:53 am
STL
- KEF
1 stop16h 57m
United Airlines
Wed 9/309:15 am
KEF
- STL
2 stops34h 02m
United Airlines
Deal found 6/26![United Airlines logo]()
$784
This Icelandair deal was found by Cheapflights users on 6/28. 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.
Sat 10/101:50 pm
STL
- KEF
1 stop11h 45m
Multiple Airlines
Sat 10/177:50 pm
KEF
- STL
1 stop16h 50m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$843
This Icelandair deal was found by Cheapflights users on 6/26. 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 10/224:35 pm
STL
- KEF
1 stop11h 35m
Multiple Airlines
Fri 10/305:00 pm
KEF
- STL
1 stop19h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$868
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Fri 10/910:27 am
STL
- KEF
1 stop17h 23m
United Airlines
Sat 10/1710:00 am
KEF
- STL
2 stops41h 30m
United Airlines
Deal found 6/28![United Airlines logo]()
$895
This Icelandair deal was found by Cheapflights users on 6/26. 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 9/204:20 pm
STL
- KEF
1 stop11h 20m
Multiple Airlines
Wed 9/305:00 pm
KEF
- STL
1 stop19h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$906
This United Airlines deal was found by Cheapflights users on 6/25. 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 10/1012:10 pm
STL
- KEF
1 stop14h 45m
United Airlines
Sat 10/1712:00 pm
KEF
- STL
1 stop12h 41m
United Airlines
Deal found 6/25![United Airlines logo]()
$910
Last-minute flights from St. Louis to IcelandDiscover last-minute flight deals from St. Louis to Iceland. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Iceland. Data last updated June 29, 2026 and is based on user searches.
This Icelandair deal was found by Cheapflights users on 6/25. 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 7/181:35 pm
STL
- KEF
1 stop12h 05m
Multiple Airlines
Tue 7/285:00 pm
KEF
- STL
1 stop19h 45m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$944
This Icelandair deal was found by Cheapflights users on 6/26. 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 7/181:35 pm
STL
- KEF
1 stop12h 05m
Multiple Airlines
Sat 7/254:45 pm
KEF
- STL
1 stop19h 45m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,036
This Icelandair deal was found by Cheapflights users on 6/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:35 pm
STL
- KEF
1 stop10h 05m
Multiple Airlines
Mon 7/275:00 pm
KEF
- STL
1 stop11h 15m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$916
This Icelandair deal was found by Cheapflights users on 6/25. 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 7/202:30 pm
STL
- KEF
1 stop13h 10m
Multiple Airlines
Sat 7/254:45 pm
KEF
- STL
1 stop19h 45m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$979
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/228:08 pm
STL
- KEF
1 stop28h 52m
Multiple Airlines
Wed 7/2910:45 am
KEF
- STL
1 stop13h 38m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$912
This Air Canada deal was found by Cheapflights users on 6/24. 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 7/2212:10 pm
STL
- KEF
1 stop14h 45m
Air Canada
Wed 7/299:50 am
KEF
- STL
2 stops37h 52m
Air Canada
Deal found 6/24![Air Canada logo]()
$993
This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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.
Wed 7/2210:51 am
STL
- KEF
2 stops15h 49m
Virgin Atlantic
Wed 7/298:45 am
KEF
- STL
2 stops20h 08m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$996
This Icelandair deal was found by Cheapflights users on 6/27. 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 7/245:35 pm
STL
- KEF
1 stop10h 05m
Multiple Airlines
Fri 7/315:00 pm
KEF
- STL
1 stop11h 15m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,031
This Icelandair deal was found by Cheapflights users on 6/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:45 pm
STL
- KEF
1 stop9h 25m
Multiple Airlines
Fri 7/315:00 pm
KEF
- STL
1 stop11h 15m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$881
This Icelandair deal was found by Cheapflights users on 6/28. 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 7/296:15 pm
STL
- KEF
1 stop9h 25m
Multiple Airlines
Sun 8/910:45 am
KEF
- STL
1 stop19h 25m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,026
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 June 29, 2026.
Search for one-way flight options from St. Louis to Iceland. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:34 pm
STL
- KEF
3 stops32h 11m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/196:45 pm
STL
- KEF
3 stops31h 55m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:03 pm
STL
- KEF
2 stops32h 57m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/192:10 pm
STL
- KEF
2 stops36h 30m
WestJet
Deal found 6/24![WestJet logo]()
$455
This United Airlines deal was found by Cheapflights users on 6/24. 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
Deal found 6/24![United Airlines logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/64:09 pm
STL
- KEF
3 stops50h 26m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/25. 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 7/2412:10 pm
STL
- KEF
1 stop14h 45m
United Airlines
Deal found 6/25![United Airlines logo]()
$534
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 June 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $285 (Virgin Atlantic) |
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 June 29, 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 - KEF
STLKEF
Lambert-St Louis
Mon 9/21
10:53 am-8:50 am
1 stop16h 57m
Reykjavik Keflavik Intl
Wed 9/30
9:15 am-2:17 pm
2 stops34h 02m
$784
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Sat 10/10
1:50 pm-6:35 am
1 stop11h 45m
Reykjavik Keflavik Intl
Sat 10/17
7:50 pm-7:40 am
1 stop16h 50m
$843
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Thu 10/22
4:35 pm-9:10 am
1 stop11h 35m
Reykjavik Keflavik Intl
Fri 10/30
5:00 pm-7:40 am
1 stop19h 40m
$868
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Fri 10/9
10:27 am-8:50 am
1 stop17h 23m
Reykjavik Keflavik Intl
Sat 10/17
10:00 am-10:30 pm
2 stops41h 30m
$895
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Sun 9/20
4:20 pm-8:40 am
1 stop11h 20m
Reykjavik Keflavik Intl
Wed 9/30
5:00 pm-7:40 am
1 stop19h 40m
$906
Quickest round-trip
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Sat 10/10
12:10 pm-7:55 am
1 stop14h 45m
Reykjavik Keflavik Intl
Sat 10/17
12:00 pm-7:41 pm
1 stop12h 41m
$910
Cheapest one-way
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 8/19
6:45 pm-7:40 am
3 stops31h 55m
$414
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 8/19
2:10 pm-7:40 am
2 stops36h 30m
$455
Quickest one-way
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 8/19
12:10 pm-7:55 am
1 stop14h 45m
$464
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 7/29
12:10 pm-7:55 am
1 stop14h 45m
$464
Showing 1-10 of 14 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 June 29, 2026.
See what other customers who have flown with KLM,Delta, 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
7.8
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
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
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St. Louis and Iceland flights
Browse other St. Louis and Iceland flight options. Last updated on June 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$604 | Average$870 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$650 | Average$1,106 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$756 | Average$1,080 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$784 | Average$1,080 | FlexibilityNo cancel fee | On-timeN/A |