$732+ Cheap flights from St. Louis (STL) to Reykjavik (REK)
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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — REK
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Reykjavik 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 St. Louis to Reykjavik
Cheapest
Best
Last-minute
Cheapest flights from St. Louis to ReykjavikExplore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/6. 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 11/111:08 pm -
1 stop14h 52m
Thu 11/1912:00 pm -
1 stop17h 15m
Deal found 8/6![United Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 11/105:00 pm -
2 stops35h 00m
Thu 11/1912:00 pm -
2 stops28h 02m
Deal found 8/7![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/309:04 am -
1 stop18h 46m
Wed 10/149:15 am -
2 stops42h 44m
Deal found 8/7![United Airlines logo]()
$772
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 8/10. 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.
Mon 9/2112:28 pm -
1 stop13h 32m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/10![United Airlines logo]()
$785
This Justfly.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 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 8/10![Air Canada logo]()
$788
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 ReykjavikDiscover carefully curated flight deals from St. Louis to Reykjavik that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from St. Louis to Reykjavik that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 11/105:00 pm -
2 stops35h 00m
Thu 11/1912:00 pm -
1 stop10h 51m
Deal found 8/7![United Airlines logo]()
$736
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 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 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.
Mon 9/2112:28 pm -
1 stop13h 32m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/10![United Airlines logo]()
$785
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.
Thu 11/511:00 am -
2 stops41h 00m
Thu 11/1212:00 pm -
1 stop13h 23m
Deal found 8/10![United Airlines logo]()
$829
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.
Fri 9/115:40 pm -
1 stop10h 00m
Sat 9/195:00 pm -
1 stop21h 20m
Deal found 8/10![Multiple Airlines logo]()
$917
This Icelandair deal was found by Cheapflights users on 8/7. 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 8/213:45 pm -
1 stop11h 55m
Mon 8/2410:45 am -
1 stop17h 25m
Deal found 8/7![Multiple Airlines logo]()
$942
This Icelandair deal was found by Cheapflights users on 8/6. 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 8/6![Multiple Airlines logo]()
$945
Last-minute flights from St. Louis to ReykjavikDiscover last-minute flight deals from St. Louis to Reykjavik. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Reykjavik. Data last updated August 11, 2026 and is based on user searches.
This Icelandair deal was found by Cheapflights users on 8/6. 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 8/274:15 pm -
1 stop11h 55m
Thu 9/37:50 pm -
1 stop16h 55m
Deal found 8/6![Multiple Airlines logo]()
$882
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.
Sun 9/64:30 pm -
1 stop9h 05m
Wed 9/164:45 pm -
1 stop21h 35m
Deal found 8/10![Multiple Airlines logo]()
$880
This Icelandair deal was found by Cheapflights users on 8/7. 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 9/74:15 pm -
1 stop9h 10m
Mon 9/144:45 pm -
1 stop21h 45m
Deal found 8/7![Multiple Airlines logo]()
$865
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.
Mon 9/2112:28 pm -
1 stop13h 32m
Wed 9/309:15 am -
2 stops35h 28m
Deal found 8/10![United Airlines logo]()
$785
This Justfly.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 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 8/10![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 United Airlines deal was found by Cheapflights users on 8/7. 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 9/309:04 am -
1 stop18h 46m
Wed 10/149:15 am -
2 stops42h 44m
Deal found 8/7![United Airlines logo]()
$772
Find flight deals from St. Louis to Reykjavik
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Reykjavik (REK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 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 Reykjavik 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 11, 2026.
Use the filters below to find and compare flights from St. Louis to Reykjavik 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
Tue 11/10
5:00 pm-10:00 am
2 stops35h 00m
Reykjavik Keflavik Intl
Thu 11/19
12:00 pm-4:51 pm
1 stop10h 51m
$736
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
Tue 9/22
11:21 am-7:00 am
1 stop14h 39m
Reykjavik Keflavik Intl
Tue 9/29
9:30 am-3:12 pm
1 stop10h 42m
$805
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Thu 11/5
11:00 am-10:00 am
2 stops41h 00m
Reykjavik Keflavik Intl
Thu 11/12
12:00 pm-7:23 pm
1 stop13h 23m
$829
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 9/11
5:40 pm-8:40 am
1 stop10h 00m
Reykjavik Keflavik Intl
Sat 9/19
5:00 pm-9:20 am
1 stop21h 20m
$917
St. LouisReykjavik
STL Lambert-St Louis - KEF Reykjavik Keflavik Intl
STLKEF
Lambert-St Louis
Fri 8/21
3:45 pm-8:40 am
1 stop11h 55m
Reykjavik Keflavik Intl
Mon 8/24
10:45 am-11:10 pm
1 stop17h 25m
$942
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
$945
Sorted by cheapest first
Compare providers for flights from St. Louis to Reykjavik
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Reykjavik in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Reykjavik flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Reykjavik flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Reykjavik flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Reykjavik flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Reykjavik flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Reykjavik
Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis with our price prediction graph.
STL-REK
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 Reykjavik
STL-REK
STL-KEF
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Reykjavik
Get insights into the airlines that provide service to Reykjavik. 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 Reykjavik. Reviews last updated August 11, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAir Canada from St. Louis to Reykjavik to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
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 Reykjavik. 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 Reykjavik?
Book flights to Reykjavik if you plan to visit one of these locationsHveragerdi
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Complete your trip
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St. Louis and Reykjavik flights
Browse other St. Louis and Reykjavik flight options. Last updated on August 11, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
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Other flights to Reykjavik
Explore flights to Reykjavik departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Top 3 airlines flying from St. Louis to Reykjavik
Discover the top 3 airlines that operate flights from St. Louis to Reykjavik. 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 11, 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 |