HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reykjavik

$580+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — REK
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
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 flights from St. Louis to Reykjavik
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 December 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/67:43 pmSTL - KEF
1 stop28h 22mMultiple Airlines
Mon 12/84:55 pmKEF - STL
2 stops35h 38mMultiple Airlines
Deal found 12/2$1,214
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:54 amSTL - KEF
1 stop14h 21mMultiple Airlines
Thu 12/185:00 pmKEF - STL
2 stops32h 42mMultiple Airlines
Deal found 12/1$1,225
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:43 pmSTL - KEF
1 stop28h 22mMultiple Airlines
Sun 12/75:00 pmKEF - STL
2 stops21h 59mMultiple Airlines
Deal found 12/1$1,347
This Gurufare deal was found by Cheapflights users on 12/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:50 amSTL - KEF
2 stops20h 25mLufthansa
Sun 12/73:20 pmKEF - STL
2 stops38h 22mLufthansa
Deal found 12/1$1,460
This Ovago deal was found by Cheapflights users on 12/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:49 pmSTL - KEF
2 stops36h 01mBritish Airways
Thu 12/1811:45 amKEF - STL
2 stops37h 46mBritish Airways
Deal found 12/1$1,698
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:00 amSTL - KEF
2 stops17h 15mAlaska Airlines
Mon 12/84:50 pmKEF - STL
2 stops27h 37mAlaska Airlines
Deal found 12/2$1,862
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Sun 12/2810:57 amSTL - KEF
2 stops37h 08mMultiple Airlines
Sun 1/45:15 pmKEF - STL
1 stop35h 18mMultiple Airlines
Deal found 12/3$1,922

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 December 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$628
(Kiwi.com)

One-way from

$580
(KLM)

Popular in

March

Cheapest in

January
Provider with most accurate pricing for Lambert-St Louis-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Reykjavik (REK) flights.
Search Deals
From Lambert-St Louis to Reykjavik (REK)
Search Deals
One-way flight from Lambert-St Louis to Reykjavik (REK)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals

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 December 3, 2025.
Use the filters below to find and compare flights from St. Louis to Reykjavik that are best for you.

Fly from

St. Louis

Fly to

Reykjavik

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 1/13

5:11 pm-6:05 am

2 stops30h 54m

Reykjavik Keflavik Intl

Tue 1/20

4:55 pm-2:46 pm

1 stop27h 51m

$628

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 1/15

12:00 pm-10:40 am

2 stops40h 40m

Reykjavik Keflavik Intl

Thu 1/22

11:30 am-11:37 pm

2 stops42h 07m

$751

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 1/22

12:00 pm-3:25 pm

2 stops21h 25m

Reykjavik Keflavik Intl

Mon 1/26

7:35 am-11:37 pm

2 stops22h 02m

$890

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 1/16

6:40 pm-2:20 pm

2 stops37h 40m

Reykjavik Keflavik Intl

Fri 1/23

3:25 pm-4:03 pm

2 stops30h 38m

$923

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 1/16

2:50 pm-6:15 am

1 stop33h 25m

Reykjavik Keflavik Intl

Fri 1/23

7:15 pm-11:33 pm

2 stops34h 18m

$928

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 1/15

5:11 pm-3:20 pm

2 stops40h 09m

Reykjavik Keflavik Intl

Thu 1/22

5:15 pm-10:23 am

1 stop23h 08m

$968

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 1/21

2:50 pm-6:15 am

1 stop33h 25m

Reykjavik Keflavik Intl

Mon 1/26

7:40 am-11:33 pm

2 stops21h 53m

$993

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 2/13

7:43 pm-6:35 am

2 stops52h 52m

Reykjavik Keflavik Intl

Sat 2/21

5:15 pm-7:50 am

1 stop20h 35m

$1,127

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 12/6

7:43 pm-6:05 am

1 stop28h 22m

Reykjavik Keflavik Intl

Mon 12/8

4:55 pm-10:33 pm

2 stops35h 38m

$1,214

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 5/14

2:18 pm-6:20 am

1 stop11h 02m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 13 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 Expedia the most. Expedia 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.
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
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 December 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines 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.
Delta
7.9
Good
8,010 reviews

Food

7.3

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,426 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,063 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,497 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • What airport do you fly from for flights from St. Louis to Reykjavik?

    If you book a flight to Reykjavik from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Reykjavik per day from 4 different airlines.

  • How long is the flight from St. Louis to Reykjavik?

    For as low as $923, Scandinavian Airlines can have you in Reykjavik from St. Louis in 37h 40m. Airlines will cover a distance of 3191 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Reykjavik round-trip?

    Currently priced at $566, Air Canada will fly you from St. Louis to Reykjavik and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $595 and $636, respectively. Users have found that Air Canada is 42% cheaper than the other options available to this destination.

  • Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

    Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Reykjavik?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Reykjavik.

  • Can I find deals for business class flights from St. Louis to Reykjavik?

    Yes. Cheapflights offers flight deals from St. Louis to Reykjavik by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Hveragerdi

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 for St. Louis to Reykjavik

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Keflavik Intl flights
St. Louis to Keflavik Intl flights
Springfield to Keflavik Intl flights

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 December 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$566Average$748FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$595Average$1,088FlexibilityNo cancel feeOn-time69%
DeltaCheapest$636Average$1,036FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$828Average$1,141FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.