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Reykjavik

$413+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — REK
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
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1. Tell us where you want to go

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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 May 30, 2026.

This United Airlines deal was found by Cheapflights users on 5/28. 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.
Sat 8/155:30 pm
STL
-
KEF
2 stops34h 15m
United Airlines
Wed 8/269:50 am
KEF
-
STL
2 stops31h 12m
United Airlines
Deal found 5/28$923
This American Airlines deal was found by Cheapflights users on 5/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:48 pm
STL
-
KEF
2 stops36h 07m
American Airlines
Wed 11/1811:50 am
KEF
-
STL
2 stops26h 20m
American Airlines
Deal found 5/27$926
This Mytrip deal was found by Cheapflights users on 5/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:10 pm
STL
-
KEF
1 stop14h 45m
Multiple Airlines
Wed 7/159:00 am
KEF
-
STL
3 stops40h 22m
Multiple Airlines
Deal found 5/29$933
This KLM deal was found by Cheapflights users on 5/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:33 am
STL
-
KEF
1 stop16h 07m
Multiple Airlines
Wed 8/269:30 am
KEF
-
STL
1 stop18h 56m
Multiple Airlines
Deal found 5/28$950
This United Airlines deal was found by Cheapflights users on 5/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:01 pm
STL
-
KEF
1 stop8h 49m
United Airlines
Wed 10/149:15 am
KEF
-
STL
2 stops41h 09m
United Airlines
Deal found 5/29$951
This Air Canada deal was found by Cheapflights users on 5/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:40 pm
STL
-
KEF
2 stops36h 15m
Air Canada
Wed 8/269:50 am
KEF
-
STL
3 stops18h 09m
Air Canada
Deal found 5/28$953
This Expedia deal was found by Cheapflights users on 5/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:54 pm
STL
-
KEF
2 stops32h 01m
Air Canada
Wed 9/169:15 am
KEF
-
STL
2 stops31h 42m
Air Canada
Deal found 5/29$957
This United Airlines deal was found by Cheapflights users on 5/28. 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.
Sun 9/209:40 am
STL
-
KEF
1 stop18h 10m
United Airlines
Wed 9/309:15 am
KEF
-
STL
2 stops35h 28m
United Airlines
Deal found 5/28$964
This United Airlines deal was found by Cheapflights users on 5/27. 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 9/216:54 pm
STL
-
KEF
2 stops32h 01m
United Airlines
Wed 9/309:15 am
KEF
-
STL
2 stops35h 28m
United Airlines
Deal found 5/27$967

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 May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$923
(United Airlines)

One-way from

$413
(Kiwi.com)
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

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 May 30, 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

Price

Cheapest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

10:33 am-7:40 am

1 stop16h 07m

Reykjavik Keflavik Intl

Wed 8/26

9:30 am-11:26 pm

1 stop18h 56m

$950
Quickest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

6:09 pm-7:40 am

1 stop8h 31m

Reykjavik Keflavik Intl

Wed 8/26

9:30 am-4:52 pm

1 stop12h 22m

$950

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 10/7

1:29 pm-8:50 am

1 stop14h 21m

Reykjavik Keflavik Intl

Wed 10/14

9:15 am-6:41 pm

1 stop14h 26m

$964

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 9/20

7:00 am-7:00 am

1 stop19h 00m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-3:43 pm

2 stops35h 28m

$964

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

5:30 pm-8:45 am

2 stops34h 15m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-3:43 pm

2 stops35h 28m

$968

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 9/21

7:00 am-8:30 am

2 stops20h 30m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-2:11 pm

2 stops33h 56m

$968

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

4:54 pm-4:30 pm

2 stops18h 36m

Reykjavik Keflavik Intl

Wed 9/30

8:35 am-8:44 pm

2 stops17h 09m

$970
Cheapest one-way

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 8/11

11:13 am-7:40 am

3 stops39h 27m

$469

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 6/12

5:36 pm-7:40 am

3 stops57h 04m

$485
Quickest one-way

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 8/13

12:10 pm-7:55 am

1 stop14h 45m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

Showing 1-10 of 13 resultsSorted by cheapest first
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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 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.
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 May 30, 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.
Delta
7.9
Good
8,417 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,417 reviews
Delta
7.9
Good
8,417 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,766 reviews
Delta
7.9
Good
8,417 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Air Canada
7.1
Good
11,105 reviews
Delta
7.9
Good
8,417 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 $950, KLM can have you in Reykjavik from St. Louis in 8h 31m. 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 $595, United Airlines will fly you from St. Louis to Reykjavik and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and KLM - these airlines can fly you to your destination from $604 and $756, respectively.

  • 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

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Alternative routes for St. Louis to Reykjavik

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Keflavik Intl flights
Kansas City 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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$595Average$1,086FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$604Average$870FlexibilityNo cancel feeOn-time67%
KLMCheapest$756Average$1,080FlexibilityNo cancel feeOn-time75%
DeltaCheapest$784Average$1,080FlexibilityNo cancel feeOn-timeN/A

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