$424+ Cheap flights from St. Louis (STL) to Reykjavik (REK)
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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — REK
Aug 10 — Aug 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
One-way
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 July 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 July 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 10/238:10 pm
STL
- KEF
1 stop28h 50m
Multiple Airlines
Fri 10/304:55 pm
KEF
- STL
2 stops21h 45m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$749
This Air Canada deal was found by Cheapflights users on 7/9. 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.
Tue 9/2212:10 pm
STL
- KEF
1 stop14h 45m
Air Canada
Wed 9/309:15 am
KEF
- STL
2 stops31h 58m
Air Canada
Deal found 7/9![Air Canada logo]()
$783
This United Airlines deal was found by Cheapflights users on 7/8. 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 7/8![United Airlines logo]()
$784
This Justfly.com deal was found by Cheapflights users on 7/8. 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
STL
- KEF
2 stops32h 02m
Air Canada
Wed 9/309:15 am
KEF
- STL
2 stops41h 06m
Air Canada
Deal found 7/8![Air Canada logo]()
$787
This United Airlines deal was found by Cheapflights users on 7/9. 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 9/2212:10 pm
STL
- KEF
1 stop14h 45m
United Airlines
Tue 9/2910:00 am
KEF
- STL
2 stops33h 17m
United Airlines
Deal found 7/9![United Airlines logo]()
$788
This Air Canada deal was found by Cheapflights users on 7/9. 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.
Tue 9/2212:10 pm
STL
- KEF
1 stop14h 45m
Air Canada
Tue 9/2910:00 am
KEF
- STL
1 stop15h 20m
Air Canada
Deal found 7/9![Air Canada logo]()
$801
This Air France deal was found by Cheapflights users on 7/7. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:52 pm
STL
- KEF
1 stop10h 08m
Air France
Wed 9/309:30 am
KEF
- STL
1 stop12h 17m
Air France
Deal found 7/7![Air France logo]()
$804
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 July 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 July 11, 2026.
This United Airlines deal was found by Cheapflights users on 7/9. 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 7/9![United Airlines logo]()
$784
This Icelandair deal was found by Cheapflights users on 7/7. 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.
Sat 8/152:40 pm
STL
- KEF
1 stop10h 55m
Multiple Airlines
Wed 8/265:00 pm
KEF
- STL
1 stop19h 45m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$856
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Thu 11/511:00 am
STL
- KEF
2 stops41h 00m
United Airlines
Thu 11/1212:00 pm
KEF
- STL
2 stops16h 20m
United Airlines
Deal found 7/6![United Airlines logo]()
$828
This Icelandair deal was found by Cheapflights users on 7/8. 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 10/101:45 pm
STL
- KEF
1 stop11h 50m
Multiple Airlines
Sat 10/177:50 pm
KEF
- STL
1 stop18h 30m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$863
This United Airlines deal was found by Cheapflights users on 7/8. 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 10/112:10 pm
STL
- KEF
1 stop14h 45m
United Airlines
Tue 10/1310:00 am
KEF
- STL
1 stop15h 00m
United Airlines
Deal found 7/8![United Airlines logo]()
$848
This Icelandair deal was found by Cheapflights users on 7/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:15 pm
STL
- KEF
1 stop9h 10m
Multiple Airlines
Mon 9/144:45 pm
KEF
- STL
1 stop21h 45m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$864
This Icelandair deal was found by Cheapflights users on 7/6. 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.
Mon 12/1412:40 pm
STL
- KEF
1 stop11h 50m
Multiple Airlines
Fri 12/185:00 pm
KEF
- STL
1 stop12h 55m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$868
This Icelandair deal was found by Cheapflights users on 7/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:50 pm
STL
- KEF
1 stop9h 20m
Multiple Airlines
Sat 9/55:00 pm
KEF
- STL
1 stop22h 10m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$891
Last-minute flights from St. Louis to ReykjavikDiscover last-minute flight deals from St. Louis to Reykjavik. Data last updated July 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Reykjavik. Data last updated July 11, 2026 and is based on user searches.
This Icelandair deal was found by Cheapflights users on 7/8. 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.
Tue 7/146:20 pm
STL
- KEF
1 stop9h 50m
Multiple Airlines
Mon 7/205:10 pm
KEF
- STL
1 stop10h 40m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$916
This Icelandair deal was found by Cheapflights users on 7/7. 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.
Thu 8/134:15 pm
STL
- KEF
1 stop9h 10m
Multiple Airlines
Thu 8/277:50 pm
KEF
- STL
1 stop16h 55m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$875
This Icelandair deal was found by Cheapflights users on 7/9. 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
STL
- KEF
1 stop10h 55m
Multiple Airlines
Wed 8/265:00 pm
KEF
- STL
1 stop19h 45m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$856
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:35 am
STL
- KEF
1 stop21h 50m
Multiple Airlines
Fri 8/2810:40 am
KEF
- STL
1 stop18h 19m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$918
This Icelandair deal was found by Cheapflights users on 7/8. 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.
Tue 8/251:40 pm
STL
- KEF
1 stop11h 45m
Multiple Airlines
Tue 9/14:45 pm
KEF
- STL
1 stop21h 45m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$864
This Icelandair deal was found by Cheapflights users on 7/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:45 pm
STL
- KEF
2 stops13h 25m
Multiple Airlines
Sat 9/55:00 pm
KEF
- STL
1 stop22h 10m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$891
One-way flights from St. Louis to ReykjavikSearch for one-way flight options from St. Louis to Reykjavik. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
Search for one-way flight options from St. Louis to Reykjavik. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Wed 8/196:45 pm
STL
- KEF
2 stops31h 55m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/10. 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 8/1912:10 pm
STL
- KEF
1 stop14h 45m
United Airlines
Deal found 7/10![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Mon 8/1012:55 pm
STL
- KEF
1 stop14h 35m
United Airlines
Deal found 7/11![United Airlines logo]()
$465
This Ovago deal was found by Cheapflights users on 7/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:21 am
STL
- KEF
2 stops20h 19m
WestJet
Deal found 7/11![WestJet logo]()
$605
This Icelandair deal was found by Cheapflights users on 7/7. 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 7/2410:05 am
STL
- KEF
1 stop15h 10m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$742
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 July 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $749 (Kiwi.com) |
One-way from | $424 (Kiwi.com) |
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 July 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 - 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
Thu 11/5
11:00 am-10:00 am
2 stops41h 00m
Reykjavik Keflavik Intl
Thu 11/12
12:00 pm-10:20 pm
2 stops16h 20m
$828
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Thu 10/1
12:10 pm-7:55 am
1 stop14h 45m
Reykjavik Keflavik Intl
Tue 10/13
10:00 am-8:00 pm
1 stop15h 00m
$848
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Sat 8/15
2:40 pm-6:35 am
1 stop10h 55m
Reykjavik Keflavik Intl
Wed 8/26
5:00 pm-7:45 am
1 stop19h 45m
$856
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Sat 10/10
1:45 pm-6:35 am
1 stop11h 50m
Reykjavik Keflavik Intl
Sat 10/17
7:50 pm-9:20 am
1 stop18h 30m
$863
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Mon 9/7
4:15 pm-6:25 am
1 stop9h 10m
Reykjavik Keflavik Intl
Mon 9/14
4:45 pm-9:30 am
1 stop21h 45m
$864
Quickest round-trip
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Mon 12/14
12:40 pm-6:30 am
1 stop11h 50m
Reykjavik Keflavik Intl
Fri 12/18
5:00 pm-11:55 pm
1 stop12h 55m
$868
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Thu 8/27
6:50 pm-9:10 am
1 stop9h 20m
Reykjavik Keflavik Intl
Sat 9/5
5:00 pm-10:10 am
1 stop22h 10m
$891
Cheapest one-way
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 8/19
6:45 pm-7:40 am
2 stops31h 55m
$424
Quickest one-way
St. LouisReykjavik
STL - KEF
STLKEF
Lambert-St Louis
Wed 8/19
12:10 pm-7:55 am
1 stop14h 45m
$464
Showing 1-10 of 13 resultsSorted 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 July.
| 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 July 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.
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from St. Louis
Popular flights
Reykjavik flight routes
Alternative routes for St. Louis to Reykjavik
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Reykjavik by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Reykjavik by cabin class
Find flights from St. Louis to Reykjavik, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Reykjavik flights
Browse other St. Louis and Reykjavik flight options. Last updated on July 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 July 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 11, 2026.
Top 4 airlines flying from St. Louis to Reykjavik
Discover the top 4 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 July 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$604 | Average$870 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$756 | Average$1,080 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$783 | Average$1,131 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$784 | Average$1,080 | FlexibilityNo cancel fee | On-timeN/A |